Tetra Tech
TTEK
552 hedge funds and large institutions have $7.32B invested in Tetra Tech in 2026 Q2 according to their latest regulatory filings, with 54 funds opening new positions, 205 increasing their positions, 214 reducing their positions, and 84 closing their positions.
4.14% more ownership
Funds ownership: 93.38% → 97.52% (+4.1%)
0% less capital invested
Capital invested by funds: $7.35B → $7.32B (-$31M)
4% less repeat investments, than reductions
Existing positions increased: 205 | Existing positions reduced: 214
7% less funds holding
Funds holding: 592 → 552 (-40)
36% less first-time investments, than exits
New positions opened: 54 | Existing positions closed: 84
40% less funds holding in top 10
Funds holding in top 10: 5 → 3 (-2)
78% less call options, than puts
Call options by funds: $8.34M | Put options by funds: $38.2M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$248M |
| 2 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$113M |
| 3 |
AQR Capital Management
Greenwich,
Connecticut
|
+$76.2M |
| 4 |
EIP
Energy Income Partners
Westport,
Connecticut
|
+$69.6M |
| 5 |
BlackRock
New York
|
+$55.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Sands Capital Management
Arlington,
Virginia
|
-$201M |
| 2 |
Pictet Asset Management
Carouge,
Switzerland
|
-$143M |
| 3 |
FCM
Fernbridge Capital Management
Los Angeles,
California
|
-$102M |
| 4 |
Neuberger Berman Group
New York
|
-$84M |
| 5 |
AllianceBernstein
Nashville,
Tennessee
|
-$72.5M |
TTEK Hedge Fund Activity: Q2 2026 in Review
552 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Tetra Tech (TTEK) for Q2 2026, worth a combined $7.32B — down 0.42% from $7.35B a quarter earlier.
Sellers outnumbered buyers: 84 funds closed out of TTEK and 54 opened new positions — a net loss of 30 holders — while 214 trimmed existing stakes and 205 added.
The largest buyer was Fidelity Investments, adding an estimated $248M. The largest seller was Sands Capital Management, exiting entirely with an estimated $201M sold.
- 552 institutional investors held Tetra Tech (TTEK) as of Q2 2026, down from 592 in Q1 2026.
- Funds reported $7.32B of Tetra Tech stock for Q2 2026, down 0.42% quarter-over-quarter.
- 54 funds opened new Tetra Tech positions in Q2 2026 and 84 closed out, a net change of -30 holders.
- The largest Tetra Tech buyer in Q2 2026 was Fidelity Investments, an estimated $248M added.
- The largest Tetra Tech seller in Q2 2026 was Sands Capital Management, an estimated $201M sold.
Based on aggregated 13F filings for Q2 2026.