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401k Sponsoring company profile

OTTER TAIL CORPORATION has sponsored the creation of one or more 401k plans.

Company Name:OTTER TAIL CORPORATION
Employer identification number (EIN):270383995
NAIC Classification:221100

The following addresses have been detected on the 401k submissions:

USA Mailing Address
4334 18TH AVE SW, SUITE 200
FARGO
ND
58103
Date first seen: 2007-03-01
Date last seen: 2025-08-31
USA Mailing Address
4334 18TH AVENUE SW SUITE 200
PO BOX 9156
FARGO
ND
58106
Date first seen: 2008-01-01
Date last seen: 2025-08-31
USA Mailing Address
PO BOX 496
215 SOUTH CASCADE STREET
FERGUS FALLS
MN
56537
Date first seen: 2007-01-01
Date last seen: 2025-08-31
USA Location Address
PO BOX 496
215 SOUTH CASCADE STREET
FERGUS FALLS
MN
56537
Date first seen: 2007-01-01
Date last seen: 2025-08-31
USA Location Address
4334 18TH AVE SW STE 200
FARGO
ND
581037414
Date first seen: 2021-10-12
Date last seen: 2021-10-12
USA Mailing Address
PO BOX 496
215 S CASCADE ST
FERGUS FALLS
MN
565372801
Date first seen: 2025-07-30
Date last seen: 2025-10-02
USA Location Address
PO BOX 496
215 S CASCADE ST
FERGUS FALLS
MN
565372801
Date first seen: 2025-07-30
Date last seen: 2025-09-15
USA Mailing Address
4150 19TH AVENUE SOUTH, SUITE 101
FARGO
ND
58103
Date first seen: 2007-03-01
Date last seen: 2025-12-03
USA Mailing Address
PO BOX 496, 215 S CASCADE STREET
FERGUS FALLS
MN
565372801
Date first seen: 2025-07-30
Date last seen: 2025-12-04
USA Mailing Address
PO BOX 496
FERGUS FALLS
MN
565380496
Date first seen: 2025-07-30
Date last seen: 2025-12-04
USA Location Address
215 S CASCADE ST
FERGUS FALLS
MN
56537
Date first seen: 2007-01-01
Date last seen: 2025-12-04
USA Mailing Address
4334-18TH AVENUE SW SUITE 200
FARGO
ND
58106
Date first seen: 2008-01-01
Date last seen: 2025-11-23
USA Mailing Address
606 LASALLE BLVD
MARQUETTE HEIGHTS
IL
61554
Date first seen: 2007-01-01
Date last seen: 2025-11-23
USA Mailing Address
4150 19TH AVE S.
SUITE 101
FARGO
MN
58103
Date first seen: 2025-11-18
Date last seen: 2025-12-03
USA Mailing Address
4150 19TH AVE SOUTH SUITE 101
FARGO
ND
58103
Date first seen: 2025-11-18
Date last seen: 2025-12-03

Sponsoring Company Events

DateDescription
2024-10-14270383995 Change of plan name detected from OTTER TAIL CORP EMPLOYEE STOCK OWNERSHIP to OTTER TAIL CORPORATION EMPLOYEE STOCK OWNERSHIP PLAN for plan ID 012
2022-10-13270383995 Change of plan name detected from OTTER TAIL CORPORATION EMPLOYEE STOCK OWNERSHIP to OTTER TAIL CORP EMPLOYEE STOCK OWNERSHIP for plan ID 012
2022-10-12270383995 Change of plan name detected from OTTER TAIL CORPORATION RETIREMENT SAVINGS PLAN to OTTER TAIL CORPORATION RETIREMENT SAVINGS for plan ID 011

OTTER TAIL CORPORATION 401k Plans

Plan id# Plan Name Plan Start Date Plan Effective Date
501OTTER TAIL CORPORATION COMPREHENSIVE WELFARE BENEFIT PLAN2014-01-01 2010-01-01
502OTTER TAIL CORPORATION SPECIAL RISK INSURANCE2015-01-01 1959-10-01
012OTTER TAIL CORP EMPLOYEE STOCK OWNERSHIP2015-01-01 1975-01-01
011OTTER TAIL CORPORATION RETIREMENT SAVINGS2015-01-01 1984-01-01
506OTTER TAIL CORPORATION RETIREE WELFARE BENEFIT PLAN2015-01-01 2011-01-01
006OTTER TAIL CORPORATION PENSION PLAN2015-01-01 1976-01-01

401k Contributions

Contributions made to the plan for the plan year by employer(s) and employees. Schedule SB Part 4 Question 18. This is signed by an actuary:

DateType of contributionContribution Number of participants/employees Average contribution per participant
2022-02-15Employer Contributions $ 20,000,000 1 $ 20,000,000
2022-02-15Employee Contributions $ 20,000,000 1 $ 20,000,000
2020-01-29Employer Contributions $ 11,200,000 1741 $ 6,433
2020-01-29Employee Contributions $ 11,200,000 1741 $ 6,433
2018-02-13Employer Contributions $ 10,000,000 2419 $ 4,134
2018-02-13Employee Contributions $ 10,000,000 2419 $ 4,134
2018-01-12Employer Contributions $ 10,000,000 2419 $ 4,134
2018-01-12Employee Contributions $ 10,000,000 2419 $ 4,134
2016-01-26Employer Contributions $ 10,000,000 542 $ 18,450
2016-01-26Employee Contributions $ 10,000,000 542 $ 18,450
2015-01-22Employer Contributions $ 10,000,000 2167 $ 4,615
2015-01-22Employee Contributions $ 10,000,000 2167 $ 4,615
2014-01-21Employer Contributions $ 10,000,000 2572 $ 3,888
2014-01-21Employee Contributions $ 10,000,000 2572 $ 3,888
2014-01-14Employer Contributions $ 10,000,000 2572 $ 3,888
2014-01-14Employee Contributions $ 10,000,000 2572 $ 3,888
2013-01-07Employer Contributions $ 10,000,000 2041 $ 4,900
2013-01-07Employee Contributions $ 10,000,000 2041 $ 4,900
2012-01-13Employer Contributions $ 10,000,000 2340 $ 4,274
2012-01-13Employee Contributions $ 10,000,000 2340 $ 4,274
2010-09-08Employer Contributions $ 20,000,000 745 $ 26,846
2010-09-08Employee Contributions $ 20,000,000 745 $ 26,846

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