Form ARS - Annual Report to Security Holders:
SEC Accession No. 0001466593-26-000025
Filing Date
2026-03-02
Accepted
2026-03-02 10:17:28
Documents
107
Period of Report
2025-12-31
Effectiveness Date
2026-03-02

Document Format Files

Seq Description Document Type Size
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  Complete submission text file 0001466593-26-000025.txt   35245462
Mailing Address 215 S CASCADE ST PO BOX 496 FERGUS FALLS MN 56538-0496
Business Address 215 S CASCADE ST PO BOX 496 FERGUS FALLS MN 56538-0496 866-410-8780
Otter Tail Corp (Filer) CIK: 0001466593 (see all company filings)

EIN.: 270383995 | State of Incorp.: MN | Fiscal Year End: 1231
Type: ARS | Act: 34 | File No.: 000-53713 | Film No.: 26704236
SIC: 4911 Electric Services
(CF Office: 01 Energy & Transportation)