PASADENA, CA
TETRA TECH INCTTEK— Latest position per institution from SEC 13F filings
15
Institutional holders
174.01M
Total shares held
6.08B
Estimated value
8.70M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
28.68M
Value
828.43M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
25.80M
Value
865.35M
Filed
Dec 31, 2025
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
12.47M
Value
360.20M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
11.73M
Value
338.76M
Filed
Jun 30, 2026
CAPITAL INTERNATIONAL INVESTORS
CIK 1562230
Shares
11.65M
Value
336.60M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
9.76M
Value
282.01M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
8.77M
Value
253.33M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
6.83M
Value
197.44M
Filed
Jun 30, 2026
SANDS CAPITAL MANAGEMENT, LLC
CIK 1020066
Shares
6.66M
Value
200.56M
Filed
Mar 31, 2026
FIL LTD
CIK 318989
Shares
5.47M
Value
158.08M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
5.27M
Value
1.08B
Filed
Jun 30, 2024
AMUNDI
CIK 1330387
Shares
5.10M
Value
147.26M
Filed
Jun 30, 2026
FULLER & THALER ASSET MANAGEMENT, INC.
CIK 1082327
Shares
4.92M
Value
142.18M
Filed
Jun 30, 2026
PICTET ASSET MANAGEMENT HOLDING SA
CIK 1993888
Shares
4.76M
Value
137.50M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
4.67M
Value
135.03M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
4.45M
Value
128.45M
Filed
Jun 30, 2026
NEUBERGER BERMAN GROUP LLC
CIK 1465109
Shares
4.41M
Value
127.38M
Filed
Jun 30, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 1164508
Shares
4.39M
Value
126.93M
Filed
Jun 30, 2026
INVESCO LTD.
CIK 914208
Shares
4.12M
Value
118.94M
Filed
Jun 30, 2026
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
Shares
4.11M
Value
117.10M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 28.68M | 828.43M | Jun 30, 2026 |
| 2 | VANGUARD GROUP INC | 102909 | 25.80M | 865.35M | Dec 31, 2025 |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 12.47M | 360.20M | Jun 30, 2026 |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 11.73M | 338.76M | Jun 30, 2026 |
| 5 | CAPITAL INTERNATIONAL INVESTORS | 1562230 | 11.65M | 336.60M | Jun 30, 2026 |
| 6 | STATE STREET CORP | 93751 | 9.76M | 282.01M | Jun 30, 2026 |
| 7 | FMR LLC | 315066 | 8.77M | 253.33M | Jun 30, 2026 |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 6.83M | 197.44M | Jun 30, 2026 |
| 9 | SANDS CAPITAL MANAGEMENT, LLC | 1020066 | 6.66M | 200.56M | Mar 31, 2026 |
| 10 | FIL LTD | 318989 | 5.47M | 158.08M | Jun 30, 2026 |
| 11 | BLACKROCK FINANCE, INC. | 1364742 | 5.27M | 1.08B | Jun 30, 2024 |
| 12 | AMUNDI | 1330387 | 5.10M | 147.26M | Jun 30, 2026 |
| 13 | FULLER & THALER ASSET MANAGEMENT, INC. | 1082327 | 4.92M | 142.18M | Jun 30, 2026 |
| 14 | PICTET ASSET MANAGEMENT HOLDING SA | 1993888 | 4.76M | 137.50M | Jun 30, 2026 |
| 15 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 4.67M | 135.03M | Jun 30, 2026 |
| 16 | DIMENSIONAL FUND ADVISORS LP | 354204 | 4.45M | 128.45M | Jun 30, 2026 |
| 17 | NEUBERGER BERMAN GROUP LLC | 1465109 | 4.41M | 127.38M | Jun 30, 2026 |
| 18 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1164508 | 4.39M | 126.93M | Jun 30, 2026 |
| 19 | INVESCO LTD. | 914208 | 4.12M | 118.94M | Jun 30, 2026 |
| 20 | AQR CAPITAL MANAGEMENT LLC | 1167557 | 4.11M | 117.10M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.