TTEKTetra Tech, Inc.

$36.60

Who owns TTEK

575 institutions reported holding TTEK for 2026Q1, together 93% of the company, fewer than the 598 a quarter earlier.

575

Institutions reporting a position · as of 2026Q1 · down from 598 the quarter before

Shares held by institutions
243.0M

Shares held by institutions · 93% of the company · long US equity positions only, as reported on Form 13F

Reported value
$7.33B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
32%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
52
New positions
67
Positions exited
95
Added to
183
Reduced
207
Top 10 holdersof the company
43%
Institutional ownership by quarter, 2013Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q1575243.0M$7.33B
2025Q4598239.5M$8.09B
2025Q3586245.5M$8.20B
2025Q2577248.6M$8.91B
2025Q1557244.7M$7.16B
2024Q4631236.2M$9.41B
2024Q3635237.1M$11.2B
2024Q258848.3M$9.83B
2024Q150146.8M$8.62B
2023Q450246.9M$7.84B
2023Q346246.6M$7.05B
2023Q244846.9M$7.66B
2023Q143745.9M$6.74B
2022Q446245.8M$6.70B
2022Q340945.9M$5.90B
2022Q241146.1M$6.29B
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.26.8M10%$807M
VANGUARD GROUP INC26.4M10%$794M
Capital International Investors11.4M4.3%$343M
Pictet Asset Management Holding SA9.6M3.7%$290M
STATE STREET CORP9.6M3.7%$290M
Neuberger Berman Group LLC7.3M2.8%$219M
SANDS CAPITAL MANAGEMENT, LLC6.7M2.5%$201M
GEODE CAPITAL MANAGEMENT LLC5.2M2.0%$157M
FIL Ltd4.8M1.8%$146M
WELLINGTON MANAGEMENT GROUP LLP4.8M1.8%$145M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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