Institutional Ownership
Tetra Tech Inc New
CUSIP 88162G103COMTTEKQ1 2026
13D / 13G Filings
24
Schedule 13D/13G on record
Beneficial Filers
6
Distinct reporting persons
Largest Stake
13.1%
Max % of class reported
Institutional Holders
579
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
24 filings · latest Oct 17, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Oct 17, 2025 | Pictet Asset Management SA | 13D/A | 4.9% | — | SEC |
| 2 | Apr 15, 2025 | Pictet Asset Management SA | 13D/A | 5.3% | — | SEC |
| 3 | Apr 15, 2025 | Pictet Asset Management SA | 13D | 5.3% | — | SEC |
| 4 | Apr 7, 2025 | The Vanguard Group | 13G/A | 10.1% | 27.19M | SEC |
| 5 | Feb 11, 2025 | Pictet Asset Management SA | 13G | 5.2% | 14.02M | SEC |
| 6 | Feb 6, 2025 | Blackrock, Inc. | 13G/A | 9.7% | 26.03M | SEC |
| 7 | Nov 21, 2024 | Pictet Asset Management SA | 13G | 5.1% | 13.64M | SEC |
| 8 | Feb 14, 2024 | Alliancebernstein L.P. | 13G/A | 5.0% | 2.64M | SEC |
| 9 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 9.7% | 5.15M | SEC |
| 10 | Jan 31, 2024 | Pictet Asset Management SA | 13G | 5.2% | 2.79M | SEC |
14 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Tetra Tech Inc New.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 26.79M | $806.93M |
| 2 | Capital International Investors | 11.39M | $342.92M |
| 3 | Pictet Asset Management Holding SA | 9.64M | $290.49M |
| 4 | State Street Corp | 9.64M | $290.23M |
| 5 | Neuberger Berman Group LLC | 7.27M | $218.96M |
| 6 | Sands Capital Management, LLC | 6.66M | $200.56M |
| 7 | Geode Capital Management, LLC | 5.22M | $157.19M |
| 8 | Fil Ltd | 4.83M | $145.56M |
| 9 | Wellington Management Group LLP | 4.80M | $144.70M |
| 10 | Amundi | 4.75M | $143.06M |