MCMASTER-CARR SUPPLY COMPANY has sponsored the creation of one or more 401k plans.
Submission information for form 5500 for 401k plan MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST
401k plan membership statisitcs for MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST
| Measure | Date | Value |
|---|
| 2023 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2023 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $233,241,973 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $233,241,973 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $3,812,389 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $103,878,073 |
| Total income from all sources (including contributions) | 2023-12-31 | $577,532,909 |
| Total loss/gain on sale of assets | 2023-12-31 | $120,494,503 |
| Total of all expenses incurred | 2023-12-31 | $195,250,976 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-12-31 | $193,981,000 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-12-31 | $171,573,036 |
| Value of total assets at end of year | 2023-12-31 | $2,733,520,068 |
| Value of total assets at beginning of year | 2023-12-31 | $2,451,303,819 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $1,269,976 |
| Total interest from all sources | 2023-12-31 | $22,768,586 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-12-31 | $24,237,850 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2023-12-31 | $46,295,585 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2023-12-31 | $62,707,078 |
| Was this plan covered by a fidelity bond | 2023-12-31 | Yes |
| Value of fidelity bond cover | 2023-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2023-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2023-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $7,154,101 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $17,033,446 |
| Administrative expenses (other) incurred | 2023-12-31 | $1,128,236 |
| Total non interest bearing cash at end of year | 2023-12-31 | $5,508 |
| Total non interest bearing cash at beginning of year | 2023-12-31 | $5,165 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2023-12-31 | No |
| Value of net income/loss | 2023-12-31 | $382,281,933 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $2,729,707,679 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $2,347,425,746 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2023-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2023-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2023-12-31 | No |
| Investment advisory and management fees | 2023-12-31 | $141,740 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2023-12-31 | $122,411,465 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2023-12-31 | $50,446,500 |
| Income. Interest from US Government securities | 2023-12-31 | $8,707,531 |
| Income. Interest from corporate debt instruments | 2023-12-31 | $14,061,055 |
| Value of interest in common/collective trusts at end of year | 2023-12-31 | $209,399,022 |
| Value of interest in common/collective trusts at beginning of year | 2023-12-31 | $239,536,293 |
| Asset value of US Government securities at end of year | 2023-12-31 | $525,160,926 |
| Asset value of US Government securities at beginning of year | 2023-12-31 | $481,878,857 |
| Net investment gain or loss from common/collective trusts | 2023-12-31 | $5,216,961 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2023-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2023-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2023-12-31 | No |
| Contributions received in cash from employer | 2023-12-31 | $171,573,036 |
| Employer contributions (assets) at end of year | 2023-12-31 | $3,491,107 |
| Employer contributions (assets) at beginning of year | 2023-12-31 | $3,757,610 |
| Income. Dividends from preferred stock | 2023-12-31 | $3,222,609 |
| Income. Dividends from common stock | 2023-12-31 | $21,015,241 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2023-12-31 | $193,981,000 |
| Asset. Corporate debt instrument debt (other) at end of year | 2023-12-31 | $313,813,587 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2023-12-31 | $325,531,509 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2023-12-31 | $1,505,788,767 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2023-12-31 | $1,270,407,361 |
| Did the plan have assets held for investment | 2023-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2023-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2023-12-31 | No |
| Aggregate proceeds on sale of assets | 2023-12-31 | $120,494,503 |
| Liabilities. Value of acquisition indebtedness at end of year | 2023-12-31 | $3,812,389 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2023-12-31 | $103,878,073 |
| Opinion of an independent qualified public accountant for this plan | 2023-12-31 | Unqualified |
| Accountancy firm name | 2023-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2023-12-31 | 134008324 |
| 2022 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-520,605,368 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-520,605,368 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $103,878,073 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $2,272,184 |
| Total income from all sources (including contributions) | 2022-12-31 | $-236,833,925 |
| Total loss/gain on sale of assets | 2022-12-31 | $76,790,536 |
| Total of all expenses incurred | 2022-12-31 | $220,894,840 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-12-31 | $219,650,047 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-12-31 | $160,645,916 |
| Value of total assets at end of year | 2022-12-31 | $2,451,303,819 |
| Value of total assets at beginning of year | 2022-12-31 | $2,807,426,695 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $1,244,793 |
| Total interest from all sources | 2022-12-31 | $17,867,495 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $25,795,535 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2022-12-31 | $62,707,078 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2022-12-31 | $95,878,426 |
| Was this plan covered by a fidelity bond | 2022-12-31 | Yes |
| Value of fidelity bond cover | 2022-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2022-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2022-12-31 | No |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $17,033,446 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $7,460,415 |
| Administrative expenses (other) incurred | 2022-12-31 | $1,003,427 |
| Total non interest bearing cash at end of year | 2022-12-31 | $5,165 |
| Total non interest bearing cash at beginning of year | 2022-12-31 | $5,359 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2022-12-31 | No |
| Value of net income/loss | 2022-12-31 | $-457,728,765 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $2,347,425,746 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $2,805,154,511 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2022-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2022-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2022-12-31 | No |
| Investment advisory and management fees | 2022-12-31 | $241,366 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2022-12-31 | $50,446,500 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2022-12-31 | $77,804,711 |
| Income. Interest from US Government securities | 2022-12-31 | $3,917,391 |
| Income. Interest from corporate debt instruments | 2022-12-31 | $13,950,087 |
| Value of interest in common/collective trusts at end of year | 2022-12-31 | $239,536,293 |
| Value of interest in common/collective trusts at beginning of year | 2022-12-31 | $386,239,712 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $114,134 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $114,134 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $17 |
| Asset value of US Government securities at end of year | 2022-12-31 | $481,878,857 |
| Asset value of US Government securities at beginning of year | 2022-12-31 | $109,420,911 |
| Net investment gain or loss from common/collective trusts | 2022-12-31 | $2,671,961 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2022-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2022-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2022-12-31 | No |
| Contributions received in cash from employer | 2022-12-31 | $160,645,916 |
| Employer contributions (assets) at end of year | 2022-12-31 | $3,757,610 |
| Employer contributions (assets) at beginning of year | 2022-12-31 | $3,025,228 |
| Income. Dividends from preferred stock | 2022-12-31 | $4,373,141 |
| Income. Dividends from common stock | 2022-12-31 | $21,422,394 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2022-12-31 | $219,650,047 |
| Asset. Corporate debt instrument debt (other) at end of year | 2022-12-31 | $325,531,509 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2022-12-31 | $388,425,968 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2022-12-31 | $1,270,407,361 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2022-12-31 | $1,739,051,831 |
| Did the plan have assets held for investment | 2022-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2022-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2022-12-31 | No |
| Aggregate proceeds on sale of assets | 2022-12-31 | $76,790,536 |
| Liabilities. Value of acquisition indebtedness at end of year | 2022-12-31 | $103,878,073 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2022-12-31 | $2,272,184 |
| Opinion of an independent qualified public accountant for this plan | 2022-12-31 | Unqualified |
| Accountancy firm name | 2022-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2022-12-31 | 134008324 |
| 2021 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $150,863,035 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $150,863,035 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $2,272,184 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $268,900 |
| Total income from all sources (including contributions) | 2021-12-31 | $561,731,638 |
| Total loss/gain on sale of assets | 2021-12-31 | $232,583,337 |
| Total of all expenses incurred | 2021-12-31 | $179,997,765 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2021-12-31 | $178,809,532 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2021-12-31 | $139,035,688 |
| Value of total assets at end of year | 2021-12-31 | $2,807,426,695 |
| Value of total assets at beginning of year | 2021-12-31 | $2,423,689,538 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $1,188,233 |
| Total interest from all sources | 2021-12-31 | $15,637,293 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $23,405,239 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2021-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2021-12-31 | $95,878,426 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2021-12-31 | $89,591,005 |
| Was this plan covered by a fidelity bond | 2021-12-31 | Yes |
| Value of fidelity bond cover | 2021-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2021-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2021-12-31 | No |
| Assets. Other investments not covered elsewhere at beginning of year | 2021-12-31 | $49,318 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $7,460,415 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $4,190,004 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $360 |
| Other income not declared elsewhere | 2021-12-31 | $1,640 |
| Administrative expenses (other) incurred | 2021-12-31 | $1,010,581 |
| Total non interest bearing cash at end of year | 2021-12-31 | $5,359 |
| Total non interest bearing cash at beginning of year | 2021-12-31 | $5,111 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2021-12-31 | No |
| Value of net income/loss | 2021-12-31 | $381,733,873 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $2,805,154,511 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $2,423,420,638 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2021-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2021-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2021-12-31 | No |
| Investment advisory and management fees | 2021-12-31 | $177,652 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2021-12-31 | $77,804,711 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2021-12-31 | $41,431,810 |
| Income. Interest from US Government securities | 2021-12-31 | $2,586,035 |
| Income. Interest from corporate debt instruments | 2021-12-31 | $13,051,237 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $386,239,712 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $382,080,108 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $114,134 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $646,804 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $646,804 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $21 |
| Asset value of US Government securities at end of year | 2021-12-31 | $109,420,911 |
| Asset value of US Government securities at beginning of year | 2021-12-31 | $133,084,784 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $205,406 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2021-12-31 | No |
| Was there a failure to transmit to the plan any participant contributions | 2021-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2021-12-31 | No |
| Contributions received in cash from employer | 2021-12-31 | $139,035,688 |
| Employer contributions (assets) at end of year | 2021-12-31 | $3,025,228 |
| Employer contributions (assets) at beginning of year | 2021-12-31 | $2,725,712 |
| Income. Dividends from preferred stock | 2021-12-31 | $4,760,389 |
| Income. Dividends from common stock | 2021-12-31 | $18,644,850 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2021-12-31 | $178,809,532 |
| Asset. Corporate debt instrument debt (other) at end of year | 2021-12-31 | $388,425,968 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2021-12-31 | $321,582,700 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2021-12-31 | $1,739,051,831 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2021-12-31 | $1,448,302,182 |
| Did the plan have assets held for investment | 2021-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2021-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2021-12-31 | No |
| Aggregate proceeds on sale of assets | 2021-12-31 | $232,583,337 |
| Liabilities. Value of acquisition indebtedness at end of year | 2021-12-31 | $2,272,184 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2021-12-31 | $268,540 |
| Opinion of an independent qualified public accountant for this plan | 2021-12-31 | Unqualified |
| Accountancy firm name | 2021-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2021-12-31 | 134008324 |
| 2020 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2020 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2020-12-31 | $197,094,790 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $197,094,790 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $268,900 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $856 |
| Total income from all sources (including contributions) | 2020-12-31 | $427,749,731 |
| Total loss/gain on sale of assets | 2020-12-31 | $75,035,992 |
| Total of all expenses incurred | 2020-12-31 | $147,951,889 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2020-12-31 | $146,997,393 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2020-12-31 | $120,740,818 |
| Value of total assets at end of year | 2020-12-31 | $2,423,689,538 |
| Value of total assets at beginning of year | 2020-12-31 | $2,143,623,652 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $954,496 |
| Total interest from all sources | 2020-12-31 | $14,350,129 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $19,358,145 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2020-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2020-12-31 | $89,591,005 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2020-12-31 | $61,335,932 |
| Was this plan covered by a fidelity bond | 2020-12-31 | Yes |
| Value of fidelity bond cover | 2020-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2020-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2020-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2020-12-31 | $49,318 |
| Assets. Other investments not covered elsewhere at beginning of year | 2020-12-31 | $99,111 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $4,190,004 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $5,477,161 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $360 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $856 |
| Other income not declared elsewhere | 2020-12-31 | $2,477 |
| Administrative expenses (other) incurred | 2020-12-31 | $811,241 |
| Total non interest bearing cash at end of year | 2020-12-31 | $5,111 |
| Total non interest bearing cash at beginning of year | 2020-12-31 | $5,407 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2020-12-31 | No |
| Value of net income/loss | 2020-12-31 | $279,797,842 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $2,423,420,638 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $2,143,622,796 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2020-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2020-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2020-12-31 | No |
| Investment advisory and management fees | 2020-12-31 | $143,255 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2020-12-31 | $41,431,810 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2020-12-31 | $56,786,980 |
| Income. Interest from US Government securities | 2020-12-31 | $1,878,410 |
| Income. Interest from corporate debt instruments | 2020-12-31 | $12,459,923 |
| Value of interest in common/collective trusts at end of year | 2020-12-31 | $382,080,108 |
| Value of interest in common/collective trusts at beginning of year | 2020-12-31 | $158,164,912 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $646,804 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $1,766,335 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $1,766,335 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $11,796 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2020-12-31 | $360 |
| Asset value of US Government securities at end of year | 2020-12-31 | $133,084,784 |
| Asset value of US Government securities at beginning of year | 2020-12-31 | $284,586,254 |
| Net investment gain or loss from common/collective trusts | 2020-12-31 | $1,167,380 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2020-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2020-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2020-12-31 | No |
| Contributions received in cash from employer | 2020-12-31 | $120,740,818 |
| Employer contributions (assets) at end of year | 2020-12-31 | $2,725,712 |
| Employer contributions (assets) at beginning of year | 2020-12-31 | $2,924,143 |
| Income. Dividends from preferred stock | 2020-12-31 | $3,383,076 |
| Income. Dividends from common stock | 2020-12-31 | $15,975,069 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2020-12-31 | $146,997,033 |
| Asset. Corporate debt instrument debt (other) at end of year | 2020-12-31 | $321,582,700 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2020-12-31 | $291,138,749 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2020-12-31 | $1,448,302,182 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2020-12-31 | $1,281,338,668 |
| Did the plan have assets held for investment | 2020-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2020-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2020-12-31 | No |
| Aggregate proceeds on sale of assets | 2020-12-31 | $75,035,992 |
| Liabilities. Value of acquisition indebtedness at end of year | 2020-12-31 | $268,540 |
| Opinion of an independent qualified public accountant for this plan | 2020-12-31 | Unqualified |
| Accountancy firm name | 2020-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2020-12-31 | 134008324 |
| 2019 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2019 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2019-12-31 | $317,549,265 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $317,549,265 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $856 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $6,280,830 |
| Total income from all sources (including contributions) | 2019-12-31 | $505,773,792 |
| Total loss/gain on sale of assets | 2019-12-31 | $30,862,776 |
| Total of all expenses incurred | 2019-12-31 | $133,913,622 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2019-12-31 | $133,082,939 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2019-12-31 | $118,676,132 |
| Value of total assets at end of year | 2019-12-31 | $2,143,623,652 |
| Value of total assets at beginning of year | 2019-12-31 | $1,778,043,456 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $830,683 |
| Total interest from all sources | 2019-12-31 | $13,886,616 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $22,769,472 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2019-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2019-12-31 | $61,335,932 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2019-12-31 | $24,550,200 |
| Was this plan covered by a fidelity bond | 2019-12-31 | Yes |
| Value of fidelity bond cover | 2019-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2019-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2019-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2019-12-31 | $99,111 |
| Assets. Other investments not covered elsewhere at beginning of year | 2019-12-31 | $95,578 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $5,477,161 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $5,225,035 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $856 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $856 |
| Other income not declared elsewhere | 2019-12-31 | $9,785 |
| Administrative expenses (other) incurred | 2019-12-31 | $751,988 |
| Total non interest bearing cash at end of year | 2019-12-31 | $5,407 |
| Total non interest bearing cash at beginning of year | 2019-12-31 | $5,034 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2019-12-31 | No |
| Income. Non cash contributions | 2019-12-31 | $-77,795 |
| Value of net income/loss | 2019-12-31 | $371,860,170 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $2,143,622,796 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $1,771,762,626 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2019-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2019-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2019-12-31 | No |
| Investment advisory and management fees | 2019-12-31 | $78,695 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2019-12-31 | $56,786,980 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2019-12-31 | $46,609,050 |
| Income. Interest from US Government securities | 2019-12-31 | $1,951,121 |
| Income. Interest from corporate debt instruments | 2019-12-31 | $11,877,401 |
| Value of interest in common/collective trusts at end of year | 2019-12-31 | $158,164,912 |
| Value of interest in common/collective trusts at beginning of year | 2019-12-31 | $158,431,214 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $1,766,335 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $2,308,853 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $2,308,853 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $58,094 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2019-12-31 | $856 |
| Asset value of US Government securities at end of year | 2019-12-31 | $284,586,254 |
| Asset value of US Government securities at beginning of year | 2019-12-31 | $209,700,802 |
| Net investment gain or loss from common/collective trusts | 2019-12-31 | $2,019,746 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2019-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2019-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2019-12-31 | No |
| Contributions received in cash from employer | 2019-12-31 | $118,753,927 |
| Employer contributions (assets) at end of year | 2019-12-31 | $2,924,143 |
| Employer contributions (assets) at beginning of year | 2019-12-31 | $1,749,123 |
| Income. Dividends from preferred stock | 2019-12-31 | $2,283,145 |
| Income. Dividends from common stock | 2019-12-31 | $20,486,327 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2019-12-31 | $133,082,083 |
| Asset. Corporate debt instrument debt (other) at end of year | 2019-12-31 | $291,138,749 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2019-12-31 | $310,792,999 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2019-12-31 | $1,281,338,668 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2019-12-31 | $1,018,575,568 |
| Did the plan have assets held for investment | 2019-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2019-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2019-12-31 | No |
| Aggregate proceeds on sale of assets | 2019-12-31 | $30,862,776 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2019-12-31 | $6,279,974 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2019-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2019-12-31 | Unqualified |
| Accountancy firm name | 2019-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2019-12-31 | 124008324 |
| 2018 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2018-12-31 | $-249,094,656 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-249,094,656 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $6,280,830 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $856 |
| Total income from all sources (including contributions) | 2018-12-31 | $-5,483,581 |
| Total loss/gain on sale of assets | 2018-12-31 | $91,417,871 |
| Total of all expenses incurred | 2018-12-31 | $115,730,271 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $114,867,757 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $115,504,010 |
| Value of total assets at end of year | 2018-12-31 | $1,778,043,456 |
| Value of total assets at beginning of year | 2018-12-31 | $1,892,977,334 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $862,514 |
| Total interest from all sources | 2018-12-31 | $15,844,014 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $18,173,897 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2018-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2018-12-31 | $24,550,200 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2018-12-31 | $22,472,050 |
| Was this plan covered by a fidelity bond | 2018-12-31 | Yes |
| Value of fidelity bond cover | 2018-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2018-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2018-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2018-12-31 | $95,578 |
| Assets. Other investments not covered elsewhere at beginning of year | 2018-12-31 | $122,226 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2018-12-31 | $-37,396 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $5,225,035 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $4,447,490 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $856 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $856 |
| Other income not declared elsewhere | 2018-12-31 | $4,400 |
| Administrative expenses (other) incurred | 2018-12-31 | $754,887 |
| Total non interest bearing cash at end of year | 2018-12-31 | $5,034 |
| Total non interest bearing cash at beginning of year | 2018-12-31 | $5,136 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2018-12-31 | No |
| Value of net income/loss | 2018-12-31 | $-121,213,852 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $1,771,762,626 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $1,892,976,478 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2018-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2018-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2018-12-31 | No |
| Investment advisory and management fees | 2018-12-31 | $107,627 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2018-12-31 | $46,609,050 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2018-12-31 | $41,483,200 |
| Income. Interest from US Government securities | 2018-12-31 | $1,588,341 |
| Income. Interest from corporate debt instruments | 2018-12-31 | $14,209,904 |
| Value of interest in common/collective trusts at end of year | 2018-12-31 | $158,431,214 |
| Value of interest in common/collective trusts at beginning of year | 2018-12-31 | $143,042,388 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $2,308,853 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $34,747,490 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $34,747,490 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $45,769 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2018-12-31 | $856 |
| Asset value of US Government securities at end of year | 2018-12-31 | $209,700,802 |
| Asset value of US Government securities at beginning of year | 2018-12-31 | $141,193,256 |
| Net investment gain or loss from common/collective trusts | 2018-12-31 | $2,666,883 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2018-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2018-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2018-12-31 | No |
| Contributions received in cash from employer | 2018-12-31 | $115,541,406 |
| Employer contributions (assets) at end of year | 2018-12-31 | $1,749,123 |
| Employer contributions (assets) at beginning of year | 2018-12-31 | $2,200,013 |
| Income. Dividends from preferred stock | 2018-12-31 | $1,657,290 |
| Income. Dividends from common stock | 2018-12-31 | $16,516,607 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2018-12-31 | $114,866,901 |
| Asset. Corporate debt instrument debt (other) at end of year | 2018-12-31 | $310,792,999 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2018-12-31 | $321,691,619 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2018-12-31 | $1,018,575,568 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2018-12-31 | $1,181,572,466 |
| Did the plan have assets held for investment | 2018-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2018-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2018-12-31 | No |
| Aggregate proceeds on sale of assets | 2018-12-31 | $91,417,871 |
| Liabilities. Value of acquisition indebtedness at end of year | 2018-12-31 | $6,279,974 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2018-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2018-12-31 | Unqualified |
| Accountancy firm name | 2018-12-31 | PRICEWATERHOUSECOOPERS LLC |
| Accountancy firm EIN | 2018-12-31 | 134008324 |
| 2017 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2017-12-31 | $139,830,715 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $139,830,715 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $856 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $592,704 |
| Total income from all sources (including contributions) | 2017-12-31 | $341,856,557 |
| Total loss/gain on sale of assets | 2017-12-31 | $64,261,312 |
| Total of all expenses incurred | 2017-12-31 | $123,246,972 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $122,509,623 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $102,819,377 |
| Value of total assets at end of year | 2017-12-31 | $1,892,977,334 |
| Value of total assets at beginning of year | 2017-12-31 | $1,674,959,597 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $737,349 |
| Total interest from all sources | 2017-12-31 | $14,723,567 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $18,176,293 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2017-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2017-12-31 | $22,472,050 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2017-12-31 | $15,547,050 |
| Was this plan covered by a fidelity bond | 2017-12-31 | Yes |
| Value of fidelity bond cover | 2017-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2017-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2017-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2017-12-31 | $122,226 |
| Assets. Other investments not covered elsewhere at beginning of year | 2017-12-31 | $115,797 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2017-12-31 | $-41,821 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $4,447,490 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $4,848,139 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $856 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $1,060 |
| Other income not declared elsewhere | 2017-12-31 | $192,326 |
| Administrative expenses (other) incurred | 2017-12-31 | $619,364 |
| Total non interest bearing cash at end of year | 2017-12-31 | $5,136 |
| Total non interest bearing cash at beginning of year | 2017-12-31 | $5,131 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2017-12-31 | No |
| Value of net income/loss | 2017-12-31 | $218,609,585 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $1,892,976,478 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $1,674,366,893 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2017-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2017-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2017-12-31 | No |
| Investment advisory and management fees | 2017-12-31 | $117,985 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2017-12-31 | $41,483,200 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2017-12-31 | $27,552,470 |
| Income. Interest from US Government securities | 2017-12-31 | $1,590,703 |
| Income. Interest from corporate debt instruments | 2017-12-31 | $12,791,125 |
| Value of interest in common/collective trusts at end of year | 2017-12-31 | $143,042,388 |
| Value of interest in common/collective trusts at beginning of year | 2017-12-31 | $126,814,357 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $34,747,490 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $37,146,938 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $37,146,938 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $341,739 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2017-12-31 | $856 |
| Asset value of US Government securities at end of year | 2017-12-31 | $141,193,256 |
| Asset value of US Government securities at beginning of year | 2017-12-31 | $128,515,597 |
| Net investment gain or loss from common/collective trusts | 2017-12-31 | $1,852,967 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2017-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2017-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2017-12-31 | No |
| Contributions received in cash from employer | 2017-12-31 | $102,861,198 |
| Employer contributions (assets) at end of year | 2017-12-31 | $2,200,013 |
| Employer contributions (assets) at beginning of year | 2017-12-31 | $2,655,349 |
| Income. Dividends from preferred stock | 2017-12-31 | $1,255,820 |
| Income. Dividends from common stock | 2017-12-31 | $16,920,473 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2017-12-31 | $122,508,767 |
| Asset. Corporate debt instrument debt (other) at end of year | 2017-12-31 | $321,691,619 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2017-12-31 | $304,288,319 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2017-12-31 | $1,181,572,466 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2017-12-31 | $1,027,470,450 |
| Did the plan have assets held for investment | 2017-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2017-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2017-12-31 | No |
| Aggregate proceeds on sale of assets | 2017-12-31 | $64,261,312 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2017-12-31 | $591,644 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2017-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2017-12-31 | Unqualified |
| Accountancy firm name | 2017-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2017-12-31 | 134008324 |
| 2016 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $53,382,656 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $53,382,656 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $592,704 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $6,420,659 |
| Total income from all sources (including contributions) | 2016-12-31 | $224,398,515 |
| Total loss/gain on sale of assets | 2016-12-31 | $34,873,260 |
| Total of all expenses incurred | 2016-12-31 | $108,813,783 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $108,226,079 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2016-12-31 | $99,134,809 |
| Value of total assets at end of year | 2016-12-31 | $1,674,959,597 |
| Value of total assets at beginning of year | 2016-12-31 | $1,565,202,820 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $587,704 |
| Total interest from all sources | 2016-12-31 | $16,521,511 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $19,416,989 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2016-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2016-12-31 | $15,547,050 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2016-12-31 | $29,568,400 |
| Was this plan covered by a fidelity bond | 2016-12-31 | Yes |
| Value of fidelity bond cover | 2016-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2016-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2016-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2016-12-31 | $115,797 |
| Assets. Other investments not covered elsewhere at beginning of year | 2016-12-31 | $111,063 |
| Income. Received or receivable in cash from other sources (including rollovers) | 2016-12-31 | $-12,059 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $4,848,139 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $12,193,348 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $1,060 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $1,060 |
| Other income not declared elsewhere | 2016-12-31 | $-38,749 |
| Administrative expenses (other) incurred | 2016-12-31 | $462,724 |
| Total non interest bearing cash at end of year | 2016-12-31 | $5,131 |
| Total non interest bearing cash at beginning of year | 2016-12-31 | $4,826 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2016-12-31 | No |
| Value of net income/loss | 2016-12-31 | $115,584,732 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $1,674,366,893 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $1,558,782,161 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2016-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2016-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2016-12-31 | No |
| Investment advisory and management fees | 2016-12-31 | $124,980 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2016-12-31 | $27,552,470 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2016-12-31 | $29,348,230 |
| Income. Interest from US Government securities | 2016-12-31 | $2,046,641 |
| Income. Interest from corporate debt instruments | 2016-12-31 | $14,120,614 |
| Value of interest in common/collective trusts at end of year | 2016-12-31 | $126,814,357 |
| Value of interest in common/collective trusts at beginning of year | 2016-12-31 | $150,977,973 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $37,146,938 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $33,492,794 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $33,492,794 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $354,256 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2016-12-31 | $1,060 |
| Asset value of US Government securities at end of year | 2016-12-31 | $128,515,597 |
| Asset value of US Government securities at beginning of year | 2016-12-31 | $166,054,555 |
| Net investment gain or loss from common/collective trusts | 2016-12-31 | $1,108,039 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2016-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2016-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2016-12-31 | No |
| Contributions received in cash from employer | 2016-12-31 | $99,146,868 |
| Employer contributions (assets) at end of year | 2016-12-31 | $2,655,349 |
| Employer contributions (assets) at beginning of year | 2016-12-31 | $2,627,363 |
| Income. Dividends from preferred stock | 2016-12-31 | $1,827,380 |
| Income. Dividends from common stock | 2016-12-31 | $17,589,609 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2016-12-31 | $108,225,019 |
| Asset. Corporate debt instrument debt (other) at end of year | 2016-12-31 | $304,288,319 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2016-12-31 | $241,545,085 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2016-12-31 | $1,027,470,450 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2016-12-31 | $899,279,183 |
| Did the plan have assets held for investment | 2016-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2016-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2016-12-31 | No |
| Aggregate proceeds on sale of assets | 2016-12-31 | $34,873,260 |
| Liabilities. Value of acquisition indebtedness at end of year | 2016-12-31 | $591,644 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2016-12-31 | $6,419,599 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2016-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2016-12-31 | Unqualified |
| Accountancy firm name | 2016-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2016-12-31 | 134008324 |
| 2015 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-121,112,226 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-121,112,226 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $6,420,659 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $19,438,746 |
| Total income from all sources (including contributions) | 2015-12-31 | $63,832,540 |
| Total loss/gain on sale of assets | 2015-12-31 | $49,162,064 |
| Total of all expenses incurred | 2015-12-31 | $81,676,695 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $81,143,740 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $99,925,057 |
| Value of total assets at end of year | 2015-12-31 | $1,565,202,820 |
| Value of total assets at beginning of year | 2015-12-31 | $1,596,065,062 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $532,955 |
| Total interest from all sources | 2015-12-31 | $16,023,140 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $19,047,501 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2015-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2015-12-31 | $29,568,400 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2015-12-31 | $17,770,680 |
| Was this plan covered by a fidelity bond | 2015-12-31 | Yes |
| Value of fidelity bond cover | 2015-12-31 | $15,000,000 |
| If this is an individual account plan, was there a blackout period | 2015-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2015-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2015-12-31 | $111,063 |
| Assets. Other investments not covered elsewhere at beginning of year | 2015-12-31 | $119,104 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $12,193,348 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $11,229,753 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $1,060 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $1,060 |
| Other income not declared elsewhere | 2015-12-31 | $23,494 |
| Administrative expenses (other) incurred | 2015-12-31 | $426,695 |
| Total non interest bearing cash at end of year | 2015-12-31 | $4,826 |
| Total non interest bearing cash at beginning of year | 2015-12-31 | $5,079 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2015-12-31 | No |
| Value of net income/loss | 2015-12-31 | $-17,844,155 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $1,558,782,161 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $1,576,626,316 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2015-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2015-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2015-12-31 | No |
| Investment advisory and management fees | 2015-12-31 | $106,260 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2015-12-31 | $29,348,230 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2015-12-31 | $29,945,410 |
| Income. Interest from US Government securities | 2015-12-31 | $3,152,451 |
| Income. Interest from corporate debt instruments | 2015-12-31 | $12,679,452 |
| Value of interest in common/collective trusts at end of year | 2015-12-31 | $150,977,973 |
| Value of interest in common/collective trusts at beginning of year | 2015-12-31 | $130,975,246 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $33,492,794 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $24,963,571 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $24,963,571 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $191,237 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2015-12-31 | $1,060 |
| Asset value of US Government securities at end of year | 2015-12-31 | $166,054,555 |
| Asset value of US Government securities at beginning of year | 2015-12-31 | $211,595,409 |
| Net investment gain or loss from common/collective trusts | 2015-12-31 | $763,510 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2015-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2015-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2015-12-31 | No |
| Contributions received in cash from employer | 2015-12-31 | $99,925,057 |
| Employer contributions (assets) at end of year | 2015-12-31 | $2,627,363 |
| Employer contributions (assets) at beginning of year | 2015-12-31 | $2,822,730 |
| Income. Dividends from preferred stock | 2015-12-31 | $1,264,337 |
| Income. Dividends from common stock | 2015-12-31 | $17,783,164 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2015-12-31 | $81,142,680 |
| Asset. Corporate debt instrument debt (other) at end of year | 2015-12-31 | $241,545,085 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2015-12-31 | $200,440,448 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2015-12-31 | $899,279,183 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2015-12-31 | $966,197,632 |
| Did the plan have assets held for investment | 2015-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2015-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2015-12-31 | No |
| Aggregate proceeds on sale of assets | 2015-12-31 | $49,162,064 |
| Liabilities. Value of acquisition indebtedness at end of year | 2015-12-31 | $6,419,599 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2015-12-31 | $19,437,686 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2015-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2015-12-31 | Unqualified |
| Accountancy firm name | 2015-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2015-12-31 | 124008324 |
| 2014 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2014-12-31 | $1,315,083 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $1,315,083 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $19,438,746 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $1,108,236 |
| Total income from all sources (including contributions) | 2014-12-31 | $221,646,971 |
| Total loss/gain on sale of assets | 2014-12-31 | $93,470,496 |
| Total of all expenses incurred | 2014-12-31 | $83,425,699 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $82,980,435 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $96,186,057 |
| Value of total assets at end of year | 2014-12-31 | $1,596,065,062 |
| Value of total assets at beginning of year | 2014-12-31 | $1,439,513,280 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $445,264 |
| Total interest from all sources | 2014-12-31 | $14,738,497 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $15,171,473 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2014-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2014-12-31 | $17,770,680 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2014-12-31 | $27,695,627 |
| Was this plan covered by a fidelity bond | 2014-12-31 | Yes |
| Value of fidelity bond cover | 2014-12-31 | $3,000,000 |
| If this is an individual account plan, was there a blackout period | 2014-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2014-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2014-12-31 | $119,104 |
| Assets. Other investments not covered elsewhere at beginning of year | 2014-12-31 | $114,418 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $11,229,753 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $7,521,220 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $1,060 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $1,158 |
| Other income not declared elsewhere | 2014-12-31 | $19,232 |
| Administrative expenses (other) incurred | 2014-12-31 | $363,327 |
| Total non interest bearing cash at end of year | 2014-12-31 | $5,079 |
| Total non interest bearing cash at beginning of year | 2014-12-31 | $14,258 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2014-12-31 | No |
| Value of net income/loss | 2014-12-31 | $138,221,272 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $1,576,626,316 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $1,438,405,044 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2014-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2014-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2014-12-31 | No |
| Investment advisory and management fees | 2014-12-31 | $81,937 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2014-12-31 | $29,945,410 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2014-12-31 | $27,073,450 |
| Income. Interest from US Government securities | 2014-12-31 | $3,699,842 |
| Income. Interest from corporate debt instruments | 2014-12-31 | $10,944,340 |
| Value of interest in common/collective trusts at end of year | 2014-12-31 | $130,975,246 |
| Value of interest in common/collective trusts at beginning of year | 2014-12-31 | $128,995,692 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $24,963,571 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $28,673,438 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $28,673,438 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $94,315 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2014-12-31 | $1,060 |
| Asset value of US Government securities at end of year | 2014-12-31 | $211,595,409 |
| Asset value of US Government securities at beginning of year | 2014-12-31 | $193,293,000 |
| Net investment gain or loss from common/collective trusts | 2014-12-31 | $746,133 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2014-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2014-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2014-12-31 | No |
| Contributions received in cash from employer | 2014-12-31 | $96,186,057 |
| Employer contributions (assets) at end of year | 2014-12-31 | $2,822,730 |
| Employer contributions (assets) at beginning of year | 2014-12-31 | $3,273,797 |
| Income. Dividends from preferred stock | 2014-12-31 | $1,508,015 |
| Income. Dividends from common stock | 2014-12-31 | $13,663,458 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2014-12-31 | $82,979,375 |
| Asset. Corporate debt instrument debt (other) at end of year | 2014-12-31 | $200,440,448 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2014-12-31 | $170,804,962 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2014-12-31 | $966,197,632 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2014-12-31 | $852,053,418 |
| Did the plan have assets held for investment | 2014-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2014-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2014-12-31 | No |
| Aggregate proceeds on sale of assets | 2014-12-31 | $93,470,496 |
| Liabilities. Value of acquisition indebtedness at end of year | 2014-12-31 | $19,437,686 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2014-12-31 | $1,107,078 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2014-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2014-12-31 | Unqualified |
| Accountancy firm name | 2014-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2014-12-31 | 134008324 |
| 2013 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $119,669,320 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $119,669,320 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $1,108,236 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $189,523 |
| Total income from all sources (including contributions) | 2013-12-31 | $331,595,372 |
| Total loss/gain on sale of assets | 2013-12-31 | $93,964,674 |
| Total of all expenses incurred | 2013-12-31 | $53,988,262 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $53,431,737 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $90,568,721 |
| Value of total assets at end of year | 2013-12-31 | $1,439,513,280 |
| Value of total assets at beginning of year | 2013-12-31 | $1,160,987,457 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $556,525 |
| Total interest from all sources | 2013-12-31 | $14,277,888 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $12,405,542 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2013-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2013-12-31 | $27,695,627 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2013-12-31 | $33,116,870 |
| Was this plan covered by a fidelity bond | 2013-12-31 | Yes |
| Value of fidelity bond cover | 2013-12-31 | $3,000,000 |
| If this is an individual account plan, was there a blackout period | 2013-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2013-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2013-12-31 | $114,418 |
| Assets. Other investments not covered elsewhere at beginning of year | 2013-12-31 | $111,159 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $7,521,220 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $4,451,454 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $1,158 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $1,158 |
| Other income not declared elsewhere | 2013-12-31 | $14,688 |
| Administrative expenses (other) incurred | 2013-12-31 | $475,504 |
| Total non interest bearing cash at end of year | 2013-12-31 | $14,258 |
| Total non interest bearing cash at beginning of year | 2013-12-31 | $5,503 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2013-12-31 | No |
| Value of net income/loss | 2013-12-31 | $277,607,110 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $1,438,405,044 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $1,160,797,934 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2013-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2013-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2013-12-31 | No |
| Investment advisory and management fees | 2013-12-31 | $81,021 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2013-12-31 | $27,073,450 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2013-12-31 | $30,549,210 |
| Income. Interest from US Government securities | 2013-12-31 | $3,742,977 |
| Income. Interest from corporate debt instruments | 2013-12-31 | $10,397,175 |
| Value of interest in common/collective trusts at end of year | 2013-12-31 | $128,995,692 |
| Value of interest in common/collective trusts at beginning of year | 2013-12-31 | $124,871,019 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $28,673,438 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $30,361,751 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $30,361,751 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $137,736 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2013-12-31 | $1,158 |
| Asset value of US Government securities at end of year | 2013-12-31 | $193,293,000 |
| Asset value of US Government securities at beginning of year | 2013-12-31 | $134,634,667 |
| Net investment gain or loss from common/collective trusts | 2013-12-31 | $694,539 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2013-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2013-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2013-12-31 | No |
| Contributions received in cash from employer | 2013-12-31 | $90,568,721 |
| Employer contributions (assets) at end of year | 2013-12-31 | $3,273,797 |
| Employer contributions (assets) at beginning of year | 2013-12-31 | $2,780,630 |
| Income. Dividends from preferred stock | 2013-12-31 | $1,790,528 |
| Income. Dividends from common stock | 2013-12-31 | $10,615,014 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2013-12-31 | $53,430,579 |
| Asset. Corporate debt instrument debt (other) at end of year | 2013-12-31 | $170,804,962 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2013-12-31 | $173,510,514 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2013-12-31 | $852,053,418 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2013-12-31 | $626,594,680 |
| Did the plan have assets held for investment | 2013-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2013-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2013-12-31 | No |
| Aggregate proceeds on sale of assets | 2013-12-31 | $93,964,674 |
| Liabilities. Value of acquisition indebtedness at end of year | 2013-12-31 | $1,107,078 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2013-12-31 | $188,365 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2013-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2013-12-31 | Unqualified |
| Accountancy firm name | 2013-12-31 | PRICEWATERHOUSECOOPERS LLP |
| Accountancy firm EIN | 2013-12-31 | 134008324 |
| 2012 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $66,185,791 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $66,185,791 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $189,523 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $3,487,571 |
| Total income from all sources (including contributions) | 2012-12-31 | $216,850,862 |
| Total loss/gain on sale of assets | 2012-12-31 | $36,838,286 |
| Total of all expenses incurred | 2012-12-31 | $74,931,874 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $74,658,532 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $85,805,116 |
| Value of total assets at end of year | 2012-12-31 | $1,160,987,457 |
| Value of total assets at beginning of year | 2012-12-31 | $1,022,366,517 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $273,342 |
| Total interest from all sources | 2012-12-31 | $13,491,748 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $13,559,446 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2012-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2012-12-31 | $33,116,870 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2012-12-31 | $21,402,747 |
| Was this plan covered by a fidelity bond | 2012-12-31 | Yes |
| Value of fidelity bond cover | 2012-12-31 | $3,000,000 |
| If this is an individual account plan, was there a blackout period | 2012-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2012-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2012-12-31 | $111,159 |
| Assets. Other investments not covered elsewhere at beginning of year | 2012-12-31 | $159,037 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $4,451,454 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $3,769,566 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $1,158 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $1,396 |
| Other income not declared elsewhere | 2012-12-31 | $5,585 |
| Administrative expenses (other) incurred | 2012-12-31 | $201,503 |
| Total non interest bearing cash at end of year | 2012-12-31 | $5,503 |
| Total non interest bearing cash at beginning of year | 2012-12-31 | $44,409 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2012-12-31 | No |
| Value of net income/loss | 2012-12-31 | $141,918,988 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $1,160,797,934 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $1,018,878,946 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2012-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2012-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2012-12-31 | No |
| Investment advisory and management fees | 2012-12-31 | $71,839 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2012-12-31 | $30,549,210 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2012-12-31 | $24,161,240 |
| Income. Interest from US Government securities | 2012-12-31 | $3,535,115 |
| Income. Interest from corporate debt instruments | 2012-12-31 | $9,727,428 |
| Value of interest in common/collective trusts at end of year | 2012-12-31 | $124,871,019 |
| Value of interest in common/collective trusts at beginning of year | 2012-12-31 | $133,914,537 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $30,361,751 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $20,006,049 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $20,006,049 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $229,205 |
| Asset value of US Government securities at end of year | 2012-12-31 | $134,634,667 |
| Asset value of US Government securities at beginning of year | 2012-12-31 | $110,273,151 |
| Net investment gain or loss from common/collective trusts | 2012-12-31 | $964,890 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2012-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2012-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2012-12-31 | No |
| Contributions received in cash from employer | 2012-12-31 | $85,805,116 |
| Employer contributions (assets) at end of year | 2012-12-31 | $2,780,630 |
| Employer contributions (assets) at beginning of year | 2012-12-31 | $2,349,527 |
| Income. Dividends from preferred stock | 2012-12-31 | $1,953,441 |
| Income. Dividends from common stock | 2012-12-31 | $11,606,005 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2012-12-31 | $74,658,532 |
| Asset. Corporate debt instrument debt (other) at end of year | 2012-12-31 | $173,510,514 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2012-12-31 | $136,747,943 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2012-12-31 | $626,594,680 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2012-12-31 | $569,538,311 |
| Did the plan have assets held for investment | 2012-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2012-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2012-12-31 | No |
| Aggregate proceeds on sale of assets | 2012-12-31 | $36,838,286 |
| Liabilities. Value of acquisition indebtedness at end of year | 2012-12-31 | $188,365 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2012-12-31 | $3,486,175 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2012-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2012-12-31 | Unqualified |
| Accountancy firm name | 2012-12-31 | PRICEWATERHOUSECOOPERS |
| Accountancy firm EIN | 2012-12-31 | 134008324 |
| 2011 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $-37,238,911 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $-37,238,911 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $3,487,571 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $1,811,946 |
| Total income from all sources (including contributions) | 2011-12-31 | $94,344,081 |
| Total loss/gain on sale of assets | 2011-12-31 | $30,491,911 |
| Total of all expenses incurred | 2011-12-31 | $69,216,449 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $69,139,988 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $77,349,527 |
| Value of total assets at end of year | 2011-12-31 | $1,022,366,517 |
| Value of total assets at beginning of year | 2011-12-31 | $995,563,260 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $76,461 |
| Total interest from all sources | 2011-12-31 | $11,018,043 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $11,561,366 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2011-12-31 | $21,402,747 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2011-12-31 | $27,388,858 |
| Was this plan covered by a fidelity bond | 2011-12-31 | Yes |
| Value of fidelity bond cover | 2011-12-31 | $3,000,000 |
| If this is an individual account plan, was there a blackout period | 2011-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2011-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2011-12-31 | $159,037 |
| Assets. Other investments not covered elsewhere at beginning of year | 2011-12-31 | $11,098,352 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $3,769,566 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $4,244,522 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $1,396 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $2,235 |
| Other income not declared elsewhere | 2011-12-31 | $6,080 |
| Administrative expenses (other) incurred | 2011-12-31 | $16,349 |
| Total non interest bearing cash at end of year | 2011-12-31 | $44,409 |
| Total non interest bearing cash at beginning of year | 2011-12-31 | $5,363 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2011-12-31 | No |
| Value of net income/loss | 2011-12-31 | $25,127,632 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $1,018,878,946 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $993,751,314 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2011-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2011-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2011-12-31 | No |
| Investment advisory and management fees | 2011-12-31 | $60,112 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2011-12-31 | $24,161,240 |
| Income. Interest from US Government securities | 2011-12-31 | $3,664,509 |
| Income. Interest from corporate debt instruments | 2011-12-31 | $7,181,260 |
| Value of interest in common/collective trusts at end of year | 2011-12-31 | $133,914,537 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $70,923,617 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $20,006,049 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $29,776,191 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $29,776,191 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2011-12-31 | $172,274 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2011-12-31 | $1,670 |
| Asset value of US Government securities at end of year | 2011-12-31 | $110,273,151 |
| Asset value of US Government securities at beginning of year | 2011-12-31 | $103,553,719 |
| Net investment gain or loss from common/collective trusts | 2011-12-31 | $1,156,065 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2011-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2011-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2011-12-31 | No |
| Contributions received in cash from employer | 2011-12-31 | $77,349,527 |
| Employer contributions (assets) at end of year | 2011-12-31 | $2,349,527 |
| Employer contributions (assets) at beginning of year | 2011-12-31 | $2,688,051 |
| Income. Dividends from preferred stock | 2011-12-31 | $1,510,659 |
| Income. Dividends from common stock | 2011-12-31 | $10,050,707 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2011-12-31 | $69,138,318 |
| Asset. Corporate debt instrument debt (other) at end of year | 2011-12-31 | $136,747,943 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2011-12-31 | $120,420,730 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2011-12-31 | $569,538,311 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2011-12-31 | $625,463,857 |
| Did the plan have assets held for investment | 2011-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2011-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2011-12-31 | No |
| Aggregate proceeds on sale of assets | 2011-12-31 | $30,491,911 |
| Liabilities. Value of acquisition indebtedness at end of year | 2011-12-31 | $3,486,175 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2011-12-31 | $1,809,711 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2011-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2011-12-31 | Unqualified |
| Accountancy firm name | 2011-12-31 | PRICEWATERHOUSECOOPERS |
| Accountancy firm EIN | 2011-12-31 | 134008324 |
| 2010 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $69,117,697 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $69,117,697 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $1,811,946 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $2,245,135 |
| Total income from all sources (including contributions) | 2010-12-31 | $174,427,805 |
| Total loss/gain on sale of assets | 2010-12-31 | $18,898,591 |
| Total of all expenses incurred | 2010-12-31 | $46,564,528 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2010-12-31 | $46,564,528 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2010-12-31 | $63,688,050 |
| Value of total assets at end of year | 2010-12-31 | $995,563,260 |
| Value of total assets at beginning of year | 2010-12-31 | $868,133,172 |
| Total interest from all sources | 2010-12-31 | $11,391,370 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $11,189,873 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2010-12-31 | No |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2010-12-31 | $27,388,858 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2010-12-31 | $28,726,711 |
| Was this plan covered by a fidelity bond | 2010-12-31 | Yes |
| Value of fidelity bond cover | 2010-12-31 | $3,000,000 |
| If this is an individual account plan, was there a blackout period | 2010-12-31 | No |
| Were there any nonexempt tranactions with any party-in-interest | 2010-12-31 | No |
| Assets. Other investments not covered elsewhere at end of year | 2010-12-31 | $11,098,352 |
| Assets. Other investments not covered elsewhere at beginning of year | 2010-12-31 | $212,870 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $4,244,522 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $3,632,592 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $2,235 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $2,235 |
| Other income not declared elsewhere | 2010-12-31 | $99,290 |
| Total non interest bearing cash at end of year | 2010-12-31 | $5,363 |
| Total non interest bearing cash at beginning of year | 2010-12-31 | $5,011 |
| Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser | 2010-12-31 | No |
| Value of net income/loss | 2010-12-31 | $127,863,277 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $993,751,314 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $865,888,037 |
| Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond) | 2010-12-31 | No |
| Were any loans by the plan or fixed income obligations due to the plan in default | 2010-12-31 | No |
| Were any leases to which the plan was party in default or uncollectible | 2010-12-31 | No |
| Income. Interest from US Government securities | 2010-12-31 | $3,956,949 |
| Income. Interest from corporate debt instruments | 2010-12-31 | $7,028,602 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $70,923,617 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $53,016,199 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $29,776,191 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $39,309,264 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $39,309,264 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2010-12-31 | $405,819 |
| Expenses. Payments to insurance carriers foe the provision of benefits | 2010-12-31 | $2,235 |
| Asset value of US Government securities at end of year | 2010-12-31 | $103,553,719 |
| Asset value of US Government securities at beginning of year | 2010-12-31 | $118,708,885 |
| Net investment gain or loss from common/collective trusts | 2010-12-31 | $42,934 |
| Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets | 2010-12-31 | Yes |
| Was there a failure to transmit to the plan any participant contributions | 2010-12-31 | No |
| Has the plan failed to provide any benefit when due under the plan | 2010-12-31 | No |
| Contributions received in cash from employer | 2010-12-31 | $63,688,050 |
| Employer contributions (assets) at end of year | 2010-12-31 | $2,688,051 |
| Employer contributions (assets) at beginning of year | 2010-12-31 | $1,913,546 |
| Income. Dividends from preferred stock | 2010-12-31 | $2,304,681 |
| Income. Dividends from common stock | 2010-12-31 | $8,885,192 |
| Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers | 2010-12-31 | $46,562,293 |
| Asset. Corporate debt instrument debt (other) at end of year | 2010-12-31 | $120,420,730 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2010-12-31 | $120,282,702 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2010-12-31 | $625,463,857 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2010-12-31 | $502,325,392 |
| Did the plan have assets held for investment | 2010-12-31 | Yes |
| Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser | 2010-12-31 | No |
| Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC | 2010-12-31 | No |
| Aggregate proceeds on sale of assets | 2010-12-31 | $18,898,591 |
| Liabilities. Value of acquisition indebtedness at end of year | 2010-12-31 | $1,809,711 |
| Liabilities. Value of acquisition indebtedness at beginning of year | 2010-12-31 | $2,242,900 |
| Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d) | 2010-12-31 | No |
| Opinion of an independent qualified public accountant for this plan | 2010-12-31 | Unqualified |
| Accountancy firm name | 2010-12-31 | PRICEWATERHOUSECOOPERS |
| Accountancy firm EIN | 2010-12-31 | 134008324 |
| 2009 : MCMASTER-CARR SUPPLY COMPANY PROFIT SHARING TRUST 2009 401k financial data |
|---|
| Total value of distributions paid in property other than in cash, annuity contracts, or publicly traded employer securities | 2009-12-31 | $0 |
