TTEK
Common Stock

Tetra Tech INC New

As of Jun 30, 2026 CUSIP 88162G103
Institutional Holders
566
Total Held Value
$7.32B
Total Exact Shares
251.46M
Largest Holder
BlackRock
28.68M shares • $828.4M
Reported Holders566
Filings dated Jun 30, 2026 unless marked
# Trend (4Q)
1 BlackRock $828.4M <0.1% +7.0% 28.68M Jun 30, 2026
2 Vanguard Portfolio Management $360.2M <0.1% -1.4% 12.47M Jun 30, 2026
3 Vanguard Capital Management $338.8M <0.1% +0.1% 11.73M Jun 30, 2026
4 Capital International Investors $336.6M 0.1% +2.3% 11.65M Jun 30, 2026
5 State Street $282.0M <0.1% +1.3% 9.76M Jun 30, 2026
6 Fidelity (FMR) $253.3M <0.1% >999% 8.77M Jun 30, 2026
7 Geode Capital Management $197.4M <0.1% +31.0% 6.83M Jun 30, 2026
8 Fidelity International (FIL) $158.1M 0.1% +13.2% 5.47M Jun 30, 2026
9 Amundi $147.3M <0.1% +7.4% 5.10M Jun 30, 2026
10 Fuller & Thaler Asset Management $142.2M 0.4% +48.5% 4.92M Jun 30, 2026
11 Pictet Asset Management Holding $137.5M 0.1% -50.7% 4.76M Jun 30, 2026
12 Wellington Management Group $135.0M <0.1% -2.7% 4.67M Jun 30, 2026
13 Dimensional Fund Advisors $128.5M <0.1% +17.3% 4.45M Jun 30, 2026
14 Neuberger Berman Group $127.4M 0.1% -39.4% 4.41M Jun 30, 2026
15 Arrowstreet Capital $126.9M 0.1% +708.5% 4.39M Jun 30, 2026
16 Invesco $118.9M <0.1% — 4.12M — Jun 30, 2026
17 AQR Capital Management $117.1M <0.1% +171.5% 4.11M Jun 30, 2026
18 Impax Asset Management Group $113.6M 0.7% +2.7% 3.93M Jun 30, 2026
19 LGT Group Foundation $108.2M 1.2% +18.5% 3.75M Jun 30, 2026
20 Norges Bank $93.3M <0.1% — 3.23M — Jun 30, 2026
Exited in Latest Filing74
# Fund Prior Value Prior % of Fund Change Prior Shares Trend (4Q) Exit Report
Each exit is an immediately prior-filing position absent from that manager's latest published filing. Prior values are shown for context and are not included in current totals.