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| Keyboard |
| Tetra Tech Inc | |
|---|---|
| Ticker | TTEK |
| CIK # | 0000831641 |
| CUSIP | 88162G103 |
| Sector | Trade & Services - Services-Engineering Services |
| Address | 3475 East Foothill Boulevard, Pasadena, CA 91107 |
| Source | [EDGAR] |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0000831641] | 10-K | |
| [0000831641] | 10-Q | |
| [0000831641] | 3 | |
| [0000831641] | 4 | |
| [0000831641] | 5 | |
| [0000831641] | 8-K | |
| [0000831641] | SC 13G |
| Form 13D/13G Filer | Form 13D/13G Subject | Filed | % Owned |
|---|---|---|---|
| Vanguard Capital Management LLC | Tetra Tech Inc | [2026-04-30] | 0.0 |
| Pictet Asset Management Sa | Tetra Tech Inc | [2025-02-11] | 0.0 |
| Pictet Asset Management Sa | Tetra Tech Inc | [2024-11-21] | 81945.1 |
| Pictet Asset Management Sa | Tetra Tech Inc | [2024-01-31] | 5.2 |
| AllianceBernstein LP | Tetra Tech Inc | [2023-02-14] | 5.6 |
| Pictet Asset Management Sa | Tetra Tech Inc | [2023-02-03] | 5.11 |
| Pictet Asset Management Sa | Tetra Tech Inc | [2022-02-10] | 5.17 |
| Dimensional Fund Advisors LP | Tetra Tech Inc | [2017-02-09] | 5.68 |
| Dimensional Fund Advisors LP | Tetra Tech Inc | [2016-02-09] | 5.95 |
| Norges Bank | Tetra Tech Inc | [2015-02-09] | 5.05 |
| Vanguard Group Inc | Tetra Tech Inc | [2012-02-09] | 5.36 |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 2,250 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 2,125 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 1,718 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Grant | 25,883 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 4,500 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 795 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 2,125 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 1,925 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 795 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 1,900 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 2,250 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 4,500 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 1,925 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 795 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 2,910 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 2,050 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 1,900 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 1,718 | $0.00 | |
|
Ritrievi Kimberly E
COMMON STOCK
|
2026-03-16 | Option exercise | 2,050 | $0.00 | |
|
Ritrievi Kimberly E
RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) · derivative
|
2026-03-16 | Option exercise | 2,910 | $0.00 | |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 590 | 240,662,744 |
| 2025-12-31 | 613 | 237,722,272 |
| 2025-09-30 | 600 | 245,496,096 |
| 2025-06-30 | 592 | 246,721,236 |
| 2025-03-31 | 572 | 241,027,436 |
| 2024-12-31 | 640 | 229,448,791 |
| 2024-09-30 | 647 | 232,117,143 |
| 2024-06-30 | 603 | 47,224,411 |
| 2024-03-31 | 514 | 46,577,808 |
| 2023-12-31 | 513 | 47,079,630 |
| 2023-09-30 | 472 | 44,008,531 |
| 2023-06-30 | 457 | 45,386,804 |