Tetra Tech INC Form 4 insider transactions

Kirsten M Volpi, a Director of Tetra Tech Inc, reported multiple transactions in common stock on August 4, 2026.

Director Kirsten M. Volpi exercised 1,700 stock options in Tetra Tech Inc. on June 4, 2026.

Tetra Tech Inc. Director Jeffrey R. Feeler acquired 1,900 shares of common stock in an open market transaction.

Tetra Tech Director Eric W. Thornburg was granted 1,259 restricted stock units as part of his compensation package.

Kimberly E. Ritrievi, a Director at Tetra Tech Inc., acquired 46,851 shares of common stock through the vesting of restricted stock units and performance stock units.

Tetra Tech Director Kirsten M. Volpi exercised 1,000 stock options at $9.59 per share, increasing her direct beneficial ownership of common stock under a 10b5-1 plan.

Tetra Tech's EVP and CFO, Steven M. Burdick, reported a planned charitable gift of 11,100 common shares, reducing his direct beneficial ownership to 138,251 shares.

TETRA TECH INC's SVP, Corporate Controller, Brian N. Carter, sold 9,979 shares of common stock for approximately $40.225 per share under a pre-arranged trading plan.

Tetra Tech Inc. Director Jeffrey R. Feeler received a grant of 1,754 restricted stock units, vesting on January 26, 2027.

Tetra Tech Inc. Director M. Susan Hardwick was granted 1,754 restricted stock units, vesting on January 26, 2027.

Tetra Tech Director Gary Birkenbeuel increased his beneficial ownership of common stock through the vesting and deferral of performance and restricted stock units.

Kimberly E. Ritrievi, a Director at Tetra Tech Inc., acquired 2,208 shares of common stock through the vesting of performance stock units.

Kimberly E. Ritrievi, a Director at Tetra Tech Inc., was awarded 1,964 restricted stock units, vesting on November 30, 2026.

Tetra Tech Director Kirsten M. Volpi increased her direct beneficial ownership of common stock through RSU vesting and option exercise, while also receiving a new RSU grant.

Tetra Tech's EVP, Chief Sustainability, Leslie L. Shoemaker, reported the vesting of restricted stock units and a related tax-driven sale of common stock.

Tetra Tech Director Christiana Obiaya reported the acquisition of common stock through RSU vesting and a new RSU award.

Preston Hopson, EVP, Chief Legal/Human Capital at Tetra Tech, reported the vesting of restricted stock units and a related tax withholding share disposition.

Tetra Tech Director Prashant Gandhi reported the vesting of 1,718 restricted stock units into common stock and the grant of 1,964 new restricted stock units.

Tetra Tech's SVP, Corporate Controller, Brian N. Carter, reported the vesting of restricted stock units and performance stock units, alongside associated tax withholdings, increasing his direct beneficial ownership.

Tetra Tech's EVP and CFO, Steven M. Burdick, reported recent stock acquisitions from RSU vesting, tax-related share disposals, and new RSU awards.

Tetra Tech Inc. Director Gary Birkenbeuel was granted 1,964 restricted stock units, vesting in November 2026.

TETRA TECH President Roger R. Argus reported the acquisition of new restricted stock units and the vesting and tax-related disposition of common stock.

Tetra Tech's Chairman and CEO, Dan L. Batrack, reported the acquisition of common stock through RSU vesting and subsequent tax-related dispositions.

Tetra Tech's Chairman and CEO, Dan L. Batrack, reported multiple transactions involving common stock and restricted stock units, including acquisitions through vesting and dispositions for tax liabilities.

Tetra Tech Director Prashant Gandhi acquired 4,104 shares of common stock through the vesting of performance stock units.

Tetra Tech President Roger R. Argus reported multiple transactions involving common stock and restricted stock units, including acquisitions from vesting and shares withheld for tax liabilities.

TETRA TECH INC Director Christiana Obiaya acquired 3,643 shares of common stock through the vesting of performance stock units.

Tetra Tech's EVP, Chief Sustainability, Leslie L. Shoemaker, reported multiple transactions involving common stock and restricted stock units on November 18, 2025, including acquisitions through vesting and disposals for tax purposes.

TETRA TECH's EVP, Chief Legal/Human Capital, Preston Hopson, reported the vesting of restricted stock units and performance stock units, alongside related tax withholdings.

Steven M. Burdick, EVP and CFO of Tetra Tech Inc., reported multiple equity transactions including vesting of performance and restricted stock units, and associated tax withholdings.