TETRA TECH INC NEW - 88162GAB9
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ZAZOVE ASSOCIATES LLC | History | No change | 56,880,000 | 61,789 | 5.32% | 5.32% | 1 | 0 | 0.0% | Q4 2025 | Feb 18, 2026 |
| MACKAY SHIELDS LLC | History | Reduced | 54,518,000 | 57,176 | 2.1% | 2.27% | 2 | -5,105,000 | -8.56% | Q1 2026 | Apr 24, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 43,794,000 | 45,782 | 0.04% | 0.05% | 3 | +10,794,000 | 32.71% | Q1 2026 | May 15, 2026 |
| ADVENT CAPITAL MANAGEMENT /DE/ | History | Reduced | 39,825,000 | 41,896 | 1.16% | 0.97% | 4 | -4,051,000 | -9.23% | Q1 2026 | May 07, 2026 |
| CAMDEN ASSET MANAGEMENT L P /CA | History | Reduced | 34,901,000 | 36,485 | 1.24% | 1.28% | 5 | -11,600,000 | -24.95% | Q1 2026 | May 14, 2026 |
| Point72 Asset Management, L.P. | History | Reduced | 33,765,000 | 35,591 | 0.05% | 0.04% | 6 | -3,000,000 | -8.16% | Q1 2026 | May 15, 2026 |
| TUDOR INVESTMENT CORP ET AL | History | New | 30,120,000 | 31,627 | 0.06% | — | 7 | +30,120,000 | New | Q1 2026 | May 15, 2026 |
| Alberta Investment Management Corp | History | No change | 25,000,000 | 26,296 | 0.16% | 0.16% | 8 | 0 | 0.0% | Q1 2026 | Apr 28, 2026 |
| DeepCurrents Investment Group LLC | History | Added to | 24,360,000 | 25,636 | 0.82% | 0.71% | 9 | +4,500,000 | 22.66% | Q1 2026 | May 15, 2026 |
| ABSOLUTE INVESTMENT ADVISERS, LLC | History | Added to | 17,526,000 | 18,407 | 2.16% | 1.92% | 10 | +2,000,000 | 12.88% | Q1 2026 | Apr 22, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | New | 17,250,000 | 18,160 | 0.01% | — | 11 | +17,250,000 | New | Q1 2026 | May 15, 2026 |
| Weiss Asset Management LP | History | Added to | 15,500,000 | 16,303 | 0.28% | 0.15% | 12 | +5,500,000 | 55.0% | Q1 2026 | May 15, 2026 |
| BANK OF MONTREAL /CAN/ | History | No change | 15,300,000 | 16,028 | 0.01% | 0.01% | 13 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| KIM, LLC | History | Added to | 12,089,000 | 12,704 | 1.3% | 0.44% | 14 | +7,089,000 | 141.78% | Q1 2026 | May 12, 2026 |
| STATE STREET CORP | History | Reduced | 11,774,000 | 12,359 | 0.0% | 0.0% | 15 | -700,000 | -5.61% | Q1 2026 | May 15, 2026 |
| FMR LLC | History | No change | 10,573,000 | 11,053 | 0.0% | 0.0% | 16 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 10,133,000 | 10,631 | 0.01% | 0.0% | 17 | +8,124,000 | 404.38% | Q1 2026 | May 12, 2026 |
| Mirabaud Asset Management (France) SAS | History | New | 10,000,000 | 10,455 | 5.34% | — | 18 | +10,000,000 | New | Q1 2026 | May 13, 2026 |
| BlackRock, Inc. | History | Added to | 9,164,000 | 9,580 | 0.0% | 0.0% | 19 | +1,975,000 | 27.47% | Q1 2026 | May 13, 2026 |
| SHENKMAN CAPITAL MANAGEMENT INC | History | No change | 8,656,000 | 9,335 | 1.12% | 1.03% | 20 | 0 | 0.0% | Q1 2026 | May 12, 2026 |
| MIZUHO SECURITIES USA LLC | History | Added to | 6,848,000 | 7,200 | 0.17% | 0.03% | 21 | +5,129,000 | 298.37% | Q1 2026 | May 11, 2026 |
| JANE STREET GROUP, LLC | History | New | 6,300,000 | 6,629 | 0.0% | — | 22 | +6,300,000 | New | Q1 2026 | May 12, 2026 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | History | Added to | 6,250,000 | 6,547 | 0.01% | 0.01% | 23 | +500,000 | 8.7% | Q1 2026 | May 15, 2026 |
| OFI INVEST ASSET MANAGEMENT | History | No change | 7,000,000 | 6,407 | 0.08% | 0.09% | 24 | 0 | 0.0% | Q1 2026 | May 05, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | History | New | 6,000,000 | 6,302 | 0.01% | — | 25 | +6,000,000 | New | Q1 2026 | May 15, 2026 |
| LORD, ABBETT & CO. LLC | History | New | 6,017,000 | 6,290 | 0.02% | — | 26 | +6,017,000 | New | Q1 2026 | May 14, 2026 |
| CONNING INC. | History | No change | 5,600,000 | 5,833 | 0.19% | 0.2% | 27 | 0 | 0.0% | Q1 2026 | Apr 30, 2026 |
| LOOMIS SAYLES & CO L P | History | Added to | 178,271 | 5,369 | 0.01% | 0.0% | 28 | +171,906 | 2700.8% | Q1 2026 | May 14, 2026 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | History | Reduced | 4,067,000 | 4,289 | 0.01% | 0.01% | 29 | -1,300,000 | -24.22% | Q1 2026 | May 11, 2026 |
| STATE OF WISCONSIN INVESTMENT BOARD | History | No change | 3,000,000 | 3,136 | 0.01% | 0.01% | 30 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Wellesley Asset Management | History | Reduced | 4,884,000 | 3,056 | 0.32% | 0.55% | 31 | -6,000 | -0.12% | Q1 2026 | May 11, 2026 |
| LAFFER TENGLER INVESTMENTS, INC. | History | Added to | 2,473 | 2,611 | 0.39% | 0.38% | 32 | +206 | 9.09% | Q1 2026 | May 13, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 2,409,000 | 2,518 | 0.0% | 0.0% | 33 | -96,000 | -3.83% | Q1 2026 | May 15, 2026 |
| SSI INVESTMENT MANAGEMENT LLC | History | Added to | 2,180,000 | 2,278 | 0.16% | 0.04% | 34 | +1,675,000 | 331.68% | Q1 2026 | May 13, 2026 |
| WELLS FARGO & COMPANY/MN | History | Reduced | 1,838,000 | 1,925 | 0.0% | 0.0% | 35 | -23,000 | -1.24% | Q1 2026 | May 11, 2026 |
| AGF MANAGEMENT LTD | History | New | 1,500,000 | 1,568 | 0.01% | — | 36 | +1,500,000 | New | Q1 2026 | May 07, 2026 |
| Man Group plc | History | Reduced | 1,425,000 | 1,487 | 0.0% | 0.0% | 37 | -75,000 | -5.0% | Q1 2026 | May 15, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 1,255,000 | 1,308 | 0.0% | 0.0% | 38 | +419,000 | 50.12% | Q1 2026 | May 13, 2026 |
| GROUPAMA ASSET MANAGMENT | History | No change | 1,250,000 | 1,307 | 0.02% | 0.02% | 39 | 0 | 0.0% | Q1 2026 | May 22, 2026 |
| RWC Asset Management LLP | History | Reduced | 1,070,000 | 1,120 | 0.05% | 0.07% | 40 | -200,000 | -15.75% | Q1 2026 | Apr 27, 2026 |
| Invesco Ltd. | History | New | 1,000,000 | 1,045 | 0.0% | — | 41 | +1,000,000 | New | Q1 2026 | May 12, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 951,000 | 994 | 0.0% | 0.0% | 42 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| Bank of New York Mellon Corp | History | Added to | 912,000 | 955 | 0.0% | 0.0% | 43 | +50,000 | 5.8% | Q1 2026 | May 05, 2026 |
| Ethic Inc. | History | New | 31,253 | 941 | 0.01% | — | 44 | +31,253 | New | Q1 2026 | Apr 27, 2026 |
| Russell Investments Group, Ltd. | History | Reduced | 811,000 | 855 | 0.0% | 0.0% | 45 | -300,000 | -27.0% | Q1 2026 | May 08, 2026 |
| CITIGROUP INC | History | Added to | 610,000 | 637 | 0.0% | 0.0% | 46 | +1,000 | 0.16% | Q1 2026 | May 11, 2026 |
| Calamos Advisors LLC | History | Reduced | 591,000 | 621 | 0.0% | 0.08% | 47 | -19,817,000 | -97.1% | Q1 2026 | May 04, 2026 |
| SEI INVESTMENTS CO | History | No change | 533,000 | 557 | 0.0% | 0.0% | 48 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | History | Reduced | 475,000 | 498 | 0.0% | 0.0% | 49 | -800,000 | -62.75% | Q1 2026 | May 15, 2026 |
| TORONTO DOMINION BANK | History | New | 417,000 | 437 | 0.0% | — | 50 | +417,000 | New | Q1 2026 | May 15, 2026 |
| NOMURA HOLDINGS INC | History | New | 9,132 | 275 | 0.0% | — | 51 | +9,132 | New | Q1 2026 | May 15, 2026 |
| Jefferies Financial Group Inc. | History | New | 211,000 | 222 | 0.0% | — | 52 | +211,000 | New | Q1 2026 | May 07, 2026 |
| OPPENHEIMER ASSET MANAGEMENT INC. | History | Reduced | 186,000 | 194 | 0.0% | 0.0% | 53 | -5,000 | -2.62% | Q1 2026 | Apr 23, 2026 |
| UBS Group AG | History | Reduced | 170,330 | 178 | 0.0% | 0.0% | 54 | -463,000 | -73.11% | Q1 2026 | May 05, 2026 |
| &PARTNERS | History | Added to | 131,000 | 136 | 0.0% | 0.0% | 55 | +53,000 | 67.95% | Q1 2026 | May 15, 2026 |
| Calamos Wealth Management LLC | History | Reduced | 108,000 | 113 | 0.0% | 0.01% | 56 | -214,000 | -66.46% | Q1 2026 | May 04, 2026 |
| STEPHENS INC /AR/ | History | No change | 59,000 | 61 | 0.0% | 0.0% | 57 | 0 | 0.0% | Q1 2026 | Apr 28, 2026 |
| LAZARD ASSET MANAGEMENT LLC | History | Added to | 4,312,000 | 45 | 0.0% | 0.0% | 59 | +1,880,000 | 77.3% | Q1 2026 | May 15, 2026 |
| FIL Ltd | History | No change | 44,000 | 45 | 0.0% | 0.0% | 58 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Balboa Wealth Partners | History | No change | 29,000 | 30 | 0.01% | 0.01% | 60 | 0 | 0.0% | Q1 2026 | Apr 16, 2026 |
| MML INVESTORS SERVICES, LLC | History | No change | 13,000 | 13 | 0.0% | 0.0% | 61 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| Steward Partners Investment Advisory, LLC | History | No change | 4,000 | 4 | 0.0% | 0.0% | 62 | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.18% | — | -20,930,000 | -100.0% | Q1 2026 | May 04, 2026 |
| OAKTREE CAPITAL MANAGEMENT LP | History | Closed out | 0 | 0 | — | 0.24% | — | -15,289,000 | -100.0% | Q1 2026 | May 20, 2026 |
| READYSTATE ASSET MANAGEMENT LP | History | Closed out | 0 | 0 | — | 0.38% | — | -8,515,000 | -100.0% | Q1 2026 | May 15, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -2,850,000 | -100.0% | Q1 2026 | May 15, 2026 |
| WESTWOOD HOLDINGS GROUP INC | History | Closed out | 0 | 0 | — | 0.02% | — | -2,500,000 | -100.0% | Q1 2026 | May 15, 2026 |
| PALISADE CAPITAL MANAGEMENT, LP | History | Closed out | 0 | 0 | — | 0.07% | — | -2,243,000 | -100.0% | Q1 2026 | May 15, 2026 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,046,000 | -100.0% | Q1 2026 | May 14, 2026 |
| CoreCap Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -4,000 | -100.0% | Q1 2026 | Apr 07, 2026 |
| Boussard & Gavaudan Investment Management LLP | History | Closed out | 0 | 0 | — | 0.25% | — | -3,000 | -100.0% | Q1 2026 | May 15, 2026 |
| Candriam S.C.A. | History | Closed out | 0 | 0 | — | 0.0% | — | -750 | -100.0% | Q1 2026 | Apr 30, 2026 |
| ABN AMRO INVESTMENT SOLUTIONS | History | Closed out | 0 | 0 | — | 0.0% | — | -300 | -100.0% | Q1 2026 | May 12, 2026 |