TETRA TECH INC
Total Trades
43
Buys
0
Sells
32
Largest Trade
N/A
Insiders
13
Institutional Funds
520
Inst. Value
$1M+
Activist Filings
16
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| CARTER BRIAN N | SVP | SELL | $100K–$500K | 10K | $40.23 | Feb 6, 2026 |
| SHOEMAKER LESLIE L | EVP | SELL | $1M+ | 11K | $211.83 | Jun 14, 2024 |
| SHOEMAKER LESLIE L | EVP | EXERCISE | $500K+ | 11K | $47.95 | Jun 14, 2024 |
| BURDICK STEVEN M | EVP, CFO | SELL | $1M+ | 8K | $175.67 | Feb 22, 2024 |
| THOMPSON J KENNETH | Director | SELL | $500K+ | 4K | $177.24 | Feb 16, 2024 |
| CARTER BRIAN N | SVP | SELL | $500K+ | 6K | $176.52 | Feb 14, 2024 |
| CARTER BRIAN N | SVP | EXERCISE | $100K–$500K | 6K | $47.95 | Feb 14, 2024 |
| BURDICK STEVEN M | EVP, CFO | SELL | $1M+ | 7K | $165.01 | Feb 8, 2024 |
| THOMPSON J KENNETH | Director | EXERCISE | $100K–$500K | 8K | $44.38 | Feb 8, 2024 |
| THOMPSON J KENNETH | Director | SELL | $1M+ | 8K | $165.00 | Feb 8, 2024 |
| BATRACK DAN L | CHAIRMAN AND CEO | SELL | $1M+ | 22K | $161.51 | Nov 30, 2023 |
| Hudkins Jill | President | SELL | $100K–$500K | 906 | $164.52 | Nov 28, 2023 |
| Argus Roger R | President | SELL | $500K+ | 4K | $163.92 | Nov 28, 2023 |
| Hopson Preston III | SVP, General Counsel | SELL | $100K–$500K | 2K | $164.60 | Nov 23, 2023 |
| Hopson Preston III | SVP, General Counsel | GRANT | N/A | 6K | — | Nov 23, 2023 |
| Volpi Kirsten M | Director | EXERCISE | $100K–$500K | 3K | $36.25 | Nov 22, 2023 |
| Volpi Kirsten M | Director | SELL | $50K–$100K | 559 | $165.50 | Nov 22, 2023 |
| THOMPSON J KENNETH | Director | EXERCISE | N/A | 380 | — | Nov 22, 2023 |
| THOMPSON J KENNETH | Director | SELL | $500K+ | 4K | $165.78 | Nov 22, 2023 |
| THOMPSON J KENNETH | Director | SELL | $100K–$500K | 3K | $156.21 | Jun 14, 2023 |
| CARTER BRIAN N | SVP | SELL | $100K–$500K | 2K | $156.91 | Jun 8, 2023 |
| THOMPSON J KENNETH | Director | SELL | $500K+ | 5K | $152.31 | Jun 5, 2023 |
| Volpi Kirsten M | Director | SELL | $100K–$500K | 900 | $145.74 | Feb 21, 2023 |
| Ritrievi Kimberly E | Director | SELL | $100K–$500K | 2K | $151.09 | Feb 10, 2023 |
| BURDICK STEVEN M | EVP, CFO | SELL | $1M+ | 11K | $151.18 | Feb 8, 2023 |
| BATRACK DAN L | CHAIRMAN AND CEO | SELL | $1M+ | 30K | $153.63 | Dec 16, 2022 |
| LEWIS J CHRISTOPHER | Director | SELL | $1M+ | 15K | $157.56 | Dec 16, 2022 |
| Volpi Kirsten M | Director | SELL | $100K–$500K | 700 | $154.61 | Dec 8, 2022 |
| Argus Roger R | SVP | SELL | $500K+ | 4K | $153.67 | Nov 28, 2022 |
| Hudkins Jill | President | SELL | $100K–$500K | 2K | $154.79 | Nov 23, 2022 |
| Hudkins Jill | President | EXERCISE | N/A | 532 | — | Nov 23, 2022 |
| Hopson Preston III | SVP, General Counsel | EXERCISE | N/A | 2K | — | Nov 23, 2022 |
| Hopson Preston III | SVP, General Counsel | SELL | $500K+ | 4K | $157.52 | Nov 23, 2022 |
| Hopson Preston III | SVP, General Counsel | GRANT | N/A | 7K | — | Nov 23, 2022 |
| THOMPSON J KENNETH | Director | SELL | $500K+ | 4K | $158.98 | Nov 16, 2022 |
| LEWIS J CHRISTOPHER | Director | EXERCISE | $500K+ | 17K | $35.79 | Aug 29, 2022 |
| LEWIS J CHRISTOPHER | Director | SELL | $1M+ | 17K | $143.62 | Aug 29, 2022 |
| Volpi Kirsten M | Director | SELL | $100K–$500K | 1K | $144.66 | Aug 23, 2022 |
| Volpi Kirsten M | Director | SELL | $50K–$100K | 550 | $135.41 | Jun 3, 2022 |
| BROWNLIE WILLIAM R | SVP, Chief Engineer | SELL | $1M+ | 9K | $165.13 | Mar 22, 2022 |
| BROWNLIE WILLIAM R | SVP, Chief Engineer | EXERCISE | $100K–$500K | 9K | $27.26 | Mar 22, 2022 |
| HADEN PATRICK C | Director | SELL | $50K–$100K | 318 | $164.54 | Mar 21, 2022 |
| Volpi Kirsten M | Director | SELL | $100K–$500K | 900 | $156.34 | Mar 10, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 520 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Pictet Asset Management Holding SA | 11.2M | $1M+ | SH |
| STATE STREET CORP | 9.4M | $1M+ | SH |
| Capital International Investors | 9.0M | $1M+ | SH |
| Neuberger Berman Group LLC | 8.3M | $1M+ | SH |
| SANDS CAPITAL MANAGEMENT, LLC | 7.0M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 4.2M | $1M+ | SH |
| NORGES BANK | 3.4M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 3.4M | $1M+ | SH |
| Impax Asset Management Group plc | 3.2M | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 3.1M | $1M+ | SH |
| Ninety One UK Ltd | 2.8M | $1M+ | SH |
| LGT Group Foundation | 2.6M | $1M+ | SH |
| M&G Plc | 2.4M | $1M+ | SH |
| Robeco Schweiz AG | 2.3M | $1M+ | SH |
| Van Berkom & Associates Inc. | 2.3M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.2M | $1M+ | SH |
| AVIVA PLC | 2.0M | $1M+ | SH |
| Capital Research Global Investors | 1.8M | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 1.7M | $1M+ | SH |
| VANGUARD GROUP INC | 1.6M | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13D/A · Oct 17, 2025
4.9%
13.0M shares
SC 13D/A · Apr 15, 2025
5.3%
14.5M shares
SC 13D · Apr 15, 2025
5.3%
14.5M shares
SC 13G/A · Apr 7, 2025
10.1%
27.2M shares
SC 13G · Feb 11, 2025
5.2%
14.0M shares
SC 13G/A · Feb 6, 2025
9.7%
26.0M shares
SC 13G · Nov 21, 2024
5.1%
13.6M shares
AllianceBernstein L.P. 13-4064930
SC 13G/A · Feb 14, 2024
5.0%
2.6M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.7%
5.2M shares
SC 13G · Jan 31, 2024
5.2%
2.8M shares
SC 13G/A · Jan 24, 2024
10.4%
5.5M shares
AllianceBernstein L.P. 13-4064930
SC 13G · Feb 13, 2023
5.6%
3.0M shares
SC 13G · Feb 3, 2023
5.1%
2.7M shares
The Vanguard Group - 23-1945930
SC 13G/A · Dec 12, 2022
10.1%
5.3M shares
SC 13G/A · Jan 27, 2022
13.1%
7.0M shares
SC 13G/A · Jan 25, 2022
13.1%
7.0M shares