Welcome to our dedicated page for Tetra Tech SEC filings (Ticker: TTEK), 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.
Tetra Tech Inc. filings document the reporting obligations of a Nasdaq-listed operating company whose common stock trades under the symbol TTEK. Recent 8-K reports cover quarterly operating results, financial-condition exhibits, dividend declarations, officer promotions, director appointments, and committee assignments tied to the company’s consulting and engineering business.
Proxy materials describe annual meeting procedures, stockholder voting matters, board governance and executive-compensation disclosures. The filing record also identifies the company’s common stock structure and supports formal disclosure of governance changes, results releases and other material events for its water, environment and sustainable infrastructure services.
Tetra Tech director Gary Birkenbeuel reported multiple equity award settlements that increased his direct common stock holdings. On 01/01/2025, 5,270 shares of common stock were acquired at $0 per share from vested performance stock units earned under the 2018 Equity Incentive Plan, and 2,050 shares were issued upon the exercise of restricted stock units (RSUs), bringing his direct holdings to 45,045 shares.
On 01/12/2026, 1,590 shares of common stock were issued at $0 per share upon the exercise of additional RSUs, and 4,397 shares were acquired from vested performance stock units, increasing his directly held Tetra Tech common stock to 51,032 shares. Footnotes note prior vesting deferrals under the issuer’s Deferred Compensation Plan, stock-settled RSUs that have no set expiration date, and adjustments for a 5-to-1 forward stock split on September 6, 2024.
Tetra Tech director Kimberly E. Ritrievi reported receiving additional company shares through equity compensation. On 01/12/2026, she acquired 2,208 shares of Tetra Tech common stock at $0 per share, reflecting settlement of previously earned performance stock units.
The footnotes explain that these performance stock units vested on 11/20/2024, were deferred under Tetra Tech's Deferred Compensation Plan, and were settled according to her elected distribution schedule. Following this transaction, she directly beneficially owns 145,408 shares of Tetra Tech common stock.
Tetra Tech is asking stockholders to vote at its 2026 Annual Meeting on February 19, 2026 on four items: electing six directors, an advisory vote on executive pay, approving an amendment to the Employee Stock Purchase Plan (ESPP), and ratifying PricewaterhouseCoopers as auditor for fiscal 2026.
The ESPP amendment would add 10,000,000 shares of common stock to the plan, shift purchases from annual to semiannual periods, and effectively raise the maximum annual employee contribution to $10,000 while keeping the per-period cap at $5,000. As of December 31, 2025, employees had bought 17,268,110 shares under the ESPP and only 2,400 shares remained available, with about 20,100 employees eligible to participate.
The company highlights record fiscal 2025 results for revenue, net revenue, adjusted earnings, and operating cash flow, along with returning $426 million to stockholders over three years, including $65 million of dividends in FY 2025. The proxy also emphasizes extensive governance practices, sustainability goals such as targeted greenhouse gas reductions, strong safety metrics, and broad professional development programs for its more than 25,000 employees.
Tetra Tech, Inc. director Jeffrey R. Feeler filed an initial Form 3 disclosing his relationship to the company as a director and confirming that he is filing individually. The filing states that no non-derivative or derivative securities are listed as beneficially owned, and the remarks section clarifies that no securities are beneficially owned.
Tetra Tech, Inc. director M. Susan Hardwick filed an initial Form 3 insider report in connection with her role as a director of the company as of 12/29/2025. The filing states in the remarks that no securities are beneficially owned, meaning she reported holding no Tetra Tech shares or derivative securities at that time.
Tetra Tech, Inc. reported insider equity transactions by Chairman and CEO Dan L. Batrack. On November 18, 2025, he exercised restricted stock units (RSUs) into 14,030 and 19,015 shares of common stock at $0 per share and acquired 164,285 additional shares from vesting of performance stock units under the 2018 Equity Incentive Plan. Shares totaling 18,235 and 90,653 were withheld at a price of $35.69 per share to cover related tax liabilities. After these transactions, he directly owned 314,309 shares of Tetra Tech common stock and 19,010 RSUs, which each represent the right to receive one share upon vesting.
Tetra Tech, Inc. (TTEK) reported an insider equity award for a company director. On 11/18/2025, the director acquired 4,104 shares of common stock at a price of $0, reflecting the vesting of performance stock units earned under the company’s 2018 Equity Incentive Plan. After this transaction, the director beneficially owns 14,835 shares of Tetra Tech common stock, held directly.
Tetra Tech, Inc. (TTEK) President and officer Roger R. Argus reported multiple equity transactions involving company common stock and restricted stock units on 11/18/2025. The filing shows the exercise of restricted stock units and performance stock units into common shares, along with shares withheld to cover related tax liabilities at a price of $35.69 per share. Following these transactions, Argus directly beneficially owned 37,565 shares of Tetra Tech common stock.
The report also updates prior beneficial ownership to include 149 shares acquired on December 15, 2024 under the company’s Employee Stock Purchase Plan. The restricted stock units generally represent the right to receive one share of common stock per unit, vest in 25% annual installments beginning in November 2022 or November 2023, and become exercisable upon vesting without a set expiration date.
Tetra Tech, Inc. (TTEK) reported an insider equity transaction by one of its directors. On 11/18/2025, the director acquired 3,643 shares of Tetra Tech common stock at a price of $0 per share. These shares were received through the vesting of performance stock units earned under the company’s 2018 Equity Incentive Plan, rather than through an open-market purchase. Following this transaction, the director beneficially owns 7,453 shares of Tetra Tech common stock, held directly.
Tetra Tech (TTEK) executive Leslie L. Shoemaker, EVP and Chief Sustainability Officer, reported multiple equity transactions on 11/18/2025. The filing shows the exercise of restricted stock units (RSUs) for 2,520 and 3,170 shares of common stock at $0 per share, reflecting previously granted awards. It also reports tax-withholding transactions, where 3,141 and 15,112 shares were withheld at a price of $35.69 to cover related tax liabilities.
In addition, 27,384 shares were acquired upon vesting of performance stock units earned under the 2018 Equity Incentive Plan. After these transactions, Shoemaker beneficially owned 322,811 shares of Tetra Tech common stock in direct ownership. The filing also notes an earlier acquisition of 149 shares through the Employee Stock Purchase Plan on December 15, 2024, and describes RSU vesting schedules that vest in 25% annual installments.