Every Form 4 that Tetra Tech Inc (TTEK) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow TTEK and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full TTEK filings page.
TETRA TECH INC director Kirsten M. Volpi exercised stock options covering 2,300 shares of common stock at $9.59 per share. The option exercise converted derivative securities into common stock, leaving her with 74,218 common shares held directly and 4,000 stock options remaining outstanding.
TETRA TECH INC director Kirsten M. Volpi exercised stock options to acquire 1,700 shares of common stock. The options had a fixed exercise price of $9.59 per share. After the transaction, Volpi directly holds 71,918 common shares and 6,300 stock options, which remain exercisable until November 18, 2027.
TETRA TECH INC director Jeffrey R. Feeler reported an open-market purchase of company shares. On 2026-05-15, he bought 1,900 shares of common stock at $26.41 per share. Following this transaction, he directly owns 1,900 shares of TETRA TECH INC common stock.
Thornburg Eric W reported acquisition or exercise transactions in this Form 4 filing.
Tetra Tech director Eric W. Thornburg received a grant of 1,259 restricted stock units (RSUs), each representing a contingent right to receive one share of Tetra Tech common stock. The RSUs will become 100% vested on April 27, 2027 and are exercisable at that time with no set expiration date. Following this award, Thornburg holds 1,259 RSUs directly.
Tetra Tech director Kimberly E. Ritrievi reported a series of stock-based compensation transactions in Tetra Tech common stock. On March 16, 2026, she exercised and settled performance and restricted stock units, acquiring 20,968 shares of common stock through derivative exercises coded "M".
According to the footnotes, these shares were earned under the 2018 Equity Incentive Plan as performance stock units that vested between November 23, 2021 and November 18, 2025, were deferred under the Deferred Compensation Plan, and have now settled upon retirement. She also received a new grant of 25,883 restricted stock units (RSUs), each representing one share of common stock.
The RSUs become 100% vested on the first anniversary of the grant date and are exercisable at vesting with no set expiration date. After these transactions, Ritrievi directly owns 192,259 shares of Tetra Tech common stock. No open‑market sales were reported in this filing.
TETRA TECH INC director Christiana Obiaya acquired 495 shares of common stock through the exercise and conversion of restricted stock units (RSUs) on February 19, 2026. The RSUs converted on a one-for-one basis into Tetra Tech common shares at a price of $0.00 per share, bringing her directly held common stock holdings to 9,666 shares after the transaction.
The filing explains that this RSU vesting had originally been scheduled for November 18, 2026, but the vesting was accelerated upon her retirement from the company’s board of directors. The RSUs are exercisable at the time of vesting and do not have a set expiration date, and a remaining balance of 1,469 RSUs was cancelled in connection with her retirement.
Argus Roger R reported acquisition or exercise transactions in this Form 4 filing.
TETRA TECH INC President and CEO Roger R. Argus received a grant of 28,174 restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Tetra Tech common stock. The RSUs vest 25% on February 19, 2027, and 25% annually thereafter until fully vested. They become exercisable upon vesting and do not have a set expiration date.
Tetra Tech director Kirsten M. Volpi reported exercising a stock option and receiving additional common shares. On February 10, 2026, she exercised an option for 1,000 shares at an exercise price of $9.59 per share, converting it into 1,000 shares of common stock.
After this transaction, she directly holds 70,218 shares of Tetra Tech common stock and 8,000 stock options. The transaction is coded “M,” indicating an exercise or conversion of a derivative security rather than an open‑market purchase or sale.
Tetra Tech, Inc. executive vice president and chief financial officer Steven M. Burdick reported a charitable stock donation. On 02/06/2026, he made a bona fide gift of 11,100 shares of common stock, at a reported price of $0 per share. After this gift, he directly beneficially owns 138,251 shares of Tetra Tech common stock.
Tetra Tech, Inc. senior vice president and corporate controller Brian N. Carter reported an open-market sale of company stock. On February 4, 2026, he sold 9,979 shares of common stock at a weighted average price of $40.225 per share, executed in multiple trades within a narrow price range. After this transaction, he beneficially owns 46,496 shares of Tetra Tech common stock, held directly.
Tetra Tech director Jeffrey R. Feeler received an award of 1,754 restricted stock units (RSUs) on January 26, 2026. Each RSU represents a contingent right to receive one share of Tetra Tech common stock at a price of $0 per unit.
The RSUs become exercisable for 100% of the shares on the first anniversary of the grant date, January 26, 2027. They are exercisable at the time of vesting and do not have a set expiration date, and are reported as directly owned by the director.
Tetra Tech director M. Susan Hardwick received an equity award in the form of restricted stock units. On 01/26/2026 she was granted 1,754 RSUs, each representing a right to receive one share of Tetra Tech common stock at a price of $0 per unit.
The RSUs vest and become exercisable as to 100% of the shares on the first anniversary of the grant date, 01/26/2027. They are exercisable at the time of vesting and do not have a set expiration date, and are reported as directly owned.
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, 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.
Tetra Tech (TTEK) executive reports equity award vesting and tax share withholdings. The EVP, Chief Legal/Human Capital filed a Form 4 showing multiple transactions in Tetra Tech common stock and restricted stock units on November 18, 2025.
Two blocks of restricted stock units were converted to common stock, covering 2,055 shares and 2,535 shares, each at an exercise price of $0. The filing also reports an acquisition of 21,902 shares of common stock from the vesting of performance stock units under the 2018 Equity Incentive Plan.
To satisfy related tax liabilities, the company withheld 1,807 shares and 8,620 shares at a price of $35.69 per share. After these transactions, the reporting person directly held 79,996 shares of Tetra Tech common stock. The footnotes clarify prior ESPP purchases and the vesting schedules of the RSU awards.
Tetra Tech, Inc. (TTEK) executive vice president and chief financial officer Steven M. Burdick reported multiple equity transactions on 11/18/2025. Restricted stock units and performance stock units vested, resulting in acquisitions of 2,520, 3,170, and 27,384 shares of common stock at an exercise price of $0 per share. To satisfy related tax liabilities, the company withheld 3,141 and 15,112 shares at a price of $35.69 per share. After these transactions, Burdick directly beneficially owns 145,936 shares of Tetra Tech common stock. The filing also notes a prior update for 149 shares acquired on December 15, 2024 under the employee stock purchase plan.
Tetra Tech, Inc. (TTEK) reported an insider equity transaction by a company director on Form 4. On 11/18/2025, the director acquired 4,104 shares of 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, meaning no cash purchase was involved. Following this vesting, the director beneficially owned 66,500 shares of Tetra Tech common stock in direct ownership.