Welcome to our dedicated page for Otter Tail SEC filings (Ticker: OTTR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Otter Tail Corporation filings document operating results, governance actions, capital structure, and material events for a diversified public company with an electric utility and manufacturing businesses. Form 8-K reports cover consolidated financial results, earnings guidance, executive appointments, annual meeting voting outcomes, and material agreements involving Otter Tail Power Company.
Proxy materials disclose board elections, executive compensation, auditor ratification, bylaw matters, and shareholder voting mechanics. Capital-structure disclosures include common shares registered on Nasdaq and utility financing arrangements such as senior unsecured notes, related covenants, and restrictions on indebtedness, liens, asset sales, affiliate transactions, and other corporate actions.
Otter Tail Corporation announced that subsidiaries Northern Pipe Products and Vinyltech Corporation have entered into a settlement agreement to resolve End-User Class claims in ongoing PVC pipe antitrust litigation. The subsidiaries agreed to pay $30 million into a settlement fund, inclusive of class recoveries, attorneys’ fees and administration costs, funded from available cash.
The settlement is subject to preliminary and final Court approval, with payment expected about 21 days after preliminary approval. The company states the agreement does not admit wrongdoing and is not expected to have a material adverse effect on its financial position or liquidity, while reducing uncertainty, distraction and potential costs from prolonged class action litigation.
Otter Tail Power Company, a wholly owned subsidiary of Otter Tail Corporation, has completed the issuance of its 6.04% Series 2026B Senior Unsecured Notes for aggregate proceeds of $70,000,000. These notes bear interest at 6.04% and are due on June 4, 2056.
The Series 2026B Notes are part of a previously agreed private placement totaling $170,000,000, which also includes 5.33% Series 2026A Notes due March 19, 2036. OTP plans to use the new funds to support capital expenditures, refinance existing debt, and for general corporate purposes.
The Note Purchase Agreement includes financial covenants limiting OTP’s Interest-bearing Debt to no more than 65% of Total Capitalization and Priority Indebtedness to no more than 20% of Total Capitalization, each tested at quarter-end. It also provides change of control prepayment rights and structured prepayment terms, including specified dates after which certain prepayments avoid a make-whole amount.
Otter Tail Corporation has entered into settlement agreements to resolve two major classes in ongoing PVC pipe antitrust litigation. Its Northern Pipe Products and Vinyltech subsidiaries agreed to pay $39.5 million into a settlement fund for direct purchasers and $34.0 million for non-converter seller purchasers, subject to court approval.
The payments, expected about 21 days after preliminary approval, will be funded with available cash and include class recoveries, attorneys’ fees and administration costs. Claims by end‑user plaintiffs remain pending, and the company plans to keep defending those. Otter Tail states these settlements are not expected to have a material adverse effect on its financial position or liquidity.
Otter Tail Corporation, through its utility subsidiary Otter Tail Power Company, filed its 2026 Integrated Resource Plan with the Minnesota Public Utilities Commission. The preferred plan outlines how the utility expects to meet customer electricity needs over the next 15 years.
Key elements include a proposed 50-megawatt natural gas plant targeted for service in 2031 or 2032, and two 50-megawatt wind facilities planned for 2035 and 2040. The plan also incorporates previously approved projects such as the 50-megawatt Solway Solar project expected in 2026, the 295-megawatt Abercrombie Solar project expected in 2028, a 75-megawatt battery storage facility, and additional wind generation. Consistent with prior planning, the Minnesota share of the Coyote Station coal plant is slated to become an Available Maximum Emergency resource beginning June 1, 2026, with service to Minnesota customers from that plant ending as soon as feasible and no later than December 31, 2031.
Otter Tail Corporation reported solid first quarter 2026 results, with diluted earnings per share of $1.73, up from $1.62 a year earlier, and net income of $72.6 million. Total operating revenues rose to $347.0 million from $337.4 million, driven by strong Electric and Manufacturing performance.
The Electric segment increased net income to $35.3 million on higher rates and fuel recovery, while Manufacturing nearly tripled net income to $4.3 million. Plastics remained highly profitable with $32.9 million of net income despite lower pricing. Trailing twelve‑month return on equity was 15%.
Management affirmed its 2026 diluted EPS guidance range of $5.22–$5.62 and a targeted long‑term EPS growth rate of 7–9%. The board declared a quarterly dividend of $0.5775 per share, payable June 10, 2026, and the company ended the quarter with total available liquidity of $658.9 million.
Vanguard Capital Management reports beneficial ownership of 2,178,374 shares of Otter Tail Corp common stock, representing 5.19% of the class. The filing shows sole voting power for 312,661 shares and sole dispositive power for 2,178,374 shares.
Vanguard Portfolio Management reports beneficial ownership of 2,963,293 shares of Otter Tail Corp common stock, equal to 7.06% of the class as reported for the period ended 03/31/2026. The filing states Vanguard exercises sole dispositive power over 2,963,293 shares and has sole voting power for 16,109 shares and that these holdings include securities held for Vanguard funds and managed accounts.
Otter Tail Corp Senior Vice President Todd R. Wahlund received a grant of 300 Restricted Stock Units on April 13, 2026. Each unit represents a contingent right to receive one share of Otter Tail common stock, issued as part of his equity-based compensation.
The filing shows existing restricted stock unit awards that vest over a four-year period and direct common stock holdings. Direct holdings include shares acquired through the dividend reinvestment plan, the Employee Stock Purchase Plan, and prior restricted stock unit distributions, reflecting a mix of salary, incentive, and reinvested ownership.
ROGELSTAD TIMOTHY J reported acquisition or exercise transactions in this Form 4 filing.
Otter Tail Corp President Timothy J. Rogelstad received a grant of 1,400 restricted stock units on April 13, 2026. Each unit represents a contingent right to cash equal to the fair market value of one common share and vests in four equal annual installments. After this award, he also holds 61,089 common shares directly and 3,371 shares indirectly through an ESOP.