Tetra Tech: which funds own it
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Sections with a free account
No concentrated manager holds it.
Quarter flow (concentrated managers)
Concentrated managers holding it
None in the latest quarter.
Largest holders (all 13F filers)
- Tudor Investment30.1 MInvestment firm0
- Absolute Investment Advisers17.2 MInvestment firm−300 K
- Shenkman Capital Management8.4 MType not verified+8.4 M
- OFI Invest Asset Management7.0 MType not verified0
- Mizuho Securities USA6.8 MBank or trading desk0
- State of Wisconsin Investment Board4.0 MPension or sovereign fund+1.0 M
- Balyasny Asset Management1.0 MQuant or multi-manager−5.0 M
- Bank of New York Mellon700 KBank or trading desk−212 K
- SEI Investments533 KInvestment firm0
- Loomis Sayles212 KInvestment firm+34 K
- Shares
- 30.1 M
- Change
- 0
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- Type
- Investment firm
- Value
- $31.7M
- Shares
- 17.2 M
- Change
- −300 K
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- Type
- Investment firm
- Value
- $18.1M
- Shenkman Capital Management
- Shares
- 8.4 M
- Change
- +8.4 M
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- Type
- Type not verified
- Value
- $9.2M
- Shares
- 7.0 M
- Change
- 0
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- Type
- Type not verified
- Value
- $6.5M
- Shares
- 6.8 M
- Change
- 0
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- Type
- Bank or trading desk
- Value
- $7.2M
- Shares
- 4.0 M
- Change
- +1.0 M
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- Type
- Pension or sovereign fund
- Value
- $4.2M
- Shares
- 1.0 M
- Change
- −5.0 M
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- Type
- Quant or multi-manager
- Value
- $1.1M
- Shares
- 700 K
- Change
- −212 K
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- Type
- Bank or trading desk
- Value
- $738K
- Shares
- 533 K
- Change
- 0
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- Type
- Investment firm
- Value
- $560K
- Shares
- 212 K
- Change
- +34 K
See more
- Type
- Investment firm
- Value
- $6.1M
The 10 13F filers with the most shares as of Jun 30, 2026, whatever their type (index firms usually come first). “Change”: shares added or cut versus the previous quarter, split-adjusted; “no data” = there is no comparable portfolio for the previous quarter (no filing, or a filing with its holdings under confidential treatment). “% of the company” only where shares outstanding are up to date. Entities of the same group file separately and some 13F filings include other managers: there may be double counting. With a free account: the top 25, the largest buyers and the largest sellers.
Insiders (Form 4)
Open-market purchases, excluding 10b5-1 plans. Officers and directors only; joint filers of the same purchase count as one. 10% owners with no role are shown separately. 0 = nobody bought; “no data” = we do not have its Form 4 filings.
Above 5% (13D/13G)
This list may be incomplete: we hold 13D and 13G filings made since December 2024. A holder above 5% that has not filed anything since then is not shown here.
No recent filings.
All material events (8-K)
Earnings, agreements, financing, management changes and announcements from the last year, with a filter by type and a link to each filing.