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, 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.
Smestad Jennifer O. reported acquisition or exercise transactions in this Form 4 filing.
Otter Tail Corp reported that SVP, General Counsel & Corporate Secretary Jennifer O. Smestad received a grant of 5,800 restricted stock units (RSUs) on common stock. Each RSU represents a contingent right to receive one share of Otter Tail stock, and these units vest on April 8, 2031.
After this grant, Smestad’s direct holdings include 19,137 shares of common stock plus multiple RSU awards covering 325, 500, 900 and 1,100 underlying shares that vest in four equal annual installments beginning on their stated dates. She also has 488 shares held indirectly through an ESOP. The filing shows no open-market buys or sells, only this compensation-related award.
Otter Tail Corp VP and CFO Tyler J. Nelson received a grant of 800 restricted stock units on Common Stock on 2026-04-13 as compensation. The award has a zero exercise price and each unit represents a contingent right to receive one share of Otter Tail Corporation stock.
According to the filing, these restricted stock units vest in four equal annual installments beginning 2027-02-06 and four years from the dates shown for certain prior awards. After the reported transactions, Nelson holds 4,355 shares of Common Stock directly, including shares acquired through the Employee Stock Purchase Plan and restricted stock unit distributions, as well as multiple outstanding restricted stock unit awards.
Otter Tail Corporation reported results from its Annual Shareholder Meeting held in a virtual format on April 13, 2026. Shareholders representing 34,713,440 of 41,953,525 entitled common shares participated in person or by proxy.
All three director nominees—Jeanne H. Crain, John D. Erickson, and Nathan I. Partain—were re-elected to three-year terms ending at the 2029 Annual Shareholder Meeting. Shareholders also approved, on a non-binding advisory basis, the compensation of the Named Executive Officers and ratified Deloitte & Touche LLP as independent registered public accounting firm.
In addition, shareholders approved an amendment and restatement of the Company’s Bylaws to add an exclusive forum provision, which designates a specific court as the sole forum for certain legal disputes involving the Company.