Tetra Tech Inc. (TTEK) Insider Trading
Directors, officers and holders of more than 10% of TTEK report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 249 transactions on file: 1 with code P, 1 with code S and 48 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 4, 2026 | Volpi Kirsten M | Director | M Exercise | 2,300 | $9.59 | $22,057 |
| Aug 4, 2026 | Volpi Kirsten M | Director | M Exercise | 2,300 | Not measured | Not measured |
| Jun 4, 2026 | Volpi Kirsten M | Director | M Exercise | 1,700 | Not measured | Not measured |
| Jun 4, 2026 | Volpi Kirsten M | Director | M Exercise | 1,700 | $9.59 | $16,303 |
| May 15, 2026 | Feeler Jeffrey R | Director | P Purchase | 1,900 | $26.41 | $50,179 |
| Apr 27, 2026 | Thornburg Eric W | Director | A Award | 1,259 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 2,050 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 1,925 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 2,250 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 2,125 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 4,500 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 2,250 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 2,125 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 1,900 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 795 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 1,718 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 4,500 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | A Award | 25,883 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 2,910 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 2,050 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 795 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 1,900 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 795 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 1,925 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 2,910 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 795 | Not measured | Not measured |
| Mar 16, 2026 | Ritrievi Kimberly E | Director | M Exercise | 1,718 | Not measured | Not measured |
| Feb 19, 2026 | Obiaya Christiana | Director | M Exercise | 495 | Not measured | Not measured |
| Feb 19, 2026 | Argus Roger R | President and CEO | A Award | 28,174 | Not measured | Not measured |
| Feb 19, 2026 | Obiaya Christiana | Director | M Exercise | 495 | Not measured | Not measured |
| Feb 10, 2026 | Volpi Kirsten M | Director | M Exercise | 1,000 | $9.59 | $9,590 |
| Feb 10, 2026 | Volpi Kirsten M | Director | M Exercise | 1,000 | Not measured | Not measured |
| Feb 6, 2026 | BURDICK STEVEN M | EVP, CFO | G Gift | 11,100 | Not measured | Not measured |
| Feb 4, 2026 | CARTER BRIAN N | SVP, Corporate Controller | S Sale | 9,979 | $40.23 | $401,405 |
| Jan 26, 2026 | Hardwick M Susan | Director | A Award | 1,754 | Not measured | Not measured |
| Jan 26, 2026 | Feeler Jeffrey R | Director | A Award | 1,754 | Not measured | Not measured |
| Jan 12, 2026 | Ritrievi Kimberly E | Director | A Award | 2,208 | Not measured | Not measured |
| Jan 12, 2026 | Birkenbeuel Gary | Director | M Exercise | 1,590 | Not measured | Not measured |
| Jan 12, 2026 | Birkenbeuel Gary | Director | M Exercise | 1,590 | Not measured | Not measured |
| Jan 12, 2026 | Birkenbeuel Gary | Director | A Award | 4,397 | Not measured | Not measured |
| Nov 30, 2025 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | M Exercise | 3,682 | Not measured | Not measured |
| Nov 30, 2025 | Volpi Kirsten M | Director | M Exercise | 1,718 | Not measured | Not measured |
| Nov 30, 2025 | Obiaya Christiana | Director | M Exercise | 1,718 | Not measured | Not measured |
| Nov 30, 2025 | Obiaya Christiana | Director | M Exercise | 1,718 | Not measured | Not measured |
| Nov 30, 2025 | BATRACK DAN L | Chairman, CEO and President | F Tax Payment | 22,396 | $34.74 | $778,037 |
| Nov 30, 2025 | SHOEMAKER LESLIE L | EVP, Chief Sustainability | M Exercise | 3,035 | Not measured | Not measured |
| Nov 30, 2025 | Hopson Preston III | EVP, Chief Legal/Human Capital | M Exercise | 2,455 | Not measured | Not measured |
| Nov 30, 2025 | BATRACK DAN L | Chairman, CEO and President | M Exercise | 19,330 | Not measured | Not measured |
| Nov 30, 2025 | BATRACK DAN L | Chairman, CEO and President | M Exercise | 21,255 | Not measured | Not measured |
| Nov 30, 2025 | Argus Roger R | President and CEO | F Tax Payment | 2,865 | $34.74 | $99,530 |
The full Form 4 history is on the TTEK company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.