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Otter Tail Corp

For the period ended Dec 31, 2025. Filed Feb 18, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 18, 2026

OTTR$79.86+1.8%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

See the whole filing, with its images and exhibits
Contents

Table of Contents

DescriptionPage
Definitions2
Where to Find More Information3
Forward-Looking Information3
PART I
ITEM 1.Business4
ITEM 1A.Risk Factors19
ITEM 1B.Unresolved Staff Comments27
ITEM 1C.Cybersecurity27
ITEM 2.Properties29
ITEM 3.Legal Proceedings30
ITEM 3A.Information About Our Executive Officers (as of February 18, 2026)30
ITEM 4.Mine Safety Disclosures31
PART II
ITEM 5.Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities31
ITEM 6.[Reserved]31
ITEM 7.Management’s Discussion and Analysis of Financial Condition and Results of Operations31
ITEM 7A.Quantitative and Qualitative Disclosures About Market Risk45
ITEM 8.Financial Statements:
Report of Independent Registered Public Accounting Firm (PCAOB ID No. 34)46
Consolidated Balance Sheets48
Consolidated Statements of Income49
Consolidated Statements of Comprehensive Income50
Consolidated Statements of Shareholders’ Equity51
Consolidated Statements of Cash Flows52
Notes to Consolidated Financial Statements53
ITEM 9.Changes in and Disagreements with Accountants on Accounting and Financial Disclosure84
ITEM 9A.Controls and Procedures84
ITEM 9B.Other Information85
ITEM 9C.Disclosure Regarding Foreign Jurisdictions That Prevent Inspections85
PART III
ITEM 10.Directors, Executive Officers and Corporate Governance86
ITEM 11.Executive Compensation86
ITEM 12.Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters86
ITEM 13.Certain Relationships and Related Transactions, and Director Independence86
ITEM 14.Principal Accountant Fees and Services87
PART IV
ITEM 15.Exhibits and Financial Statement Schedules88
Signatures97
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.