Tetra Tech
TTEK
609 hedge funds and large institutions have $8.22B invested in Tetra Tech in 2025 Q4 according to their latest regulatory filings, with 95 funds opening new positions, 183 increasing their positions, 252 reducing their positions, and 69 closing their positions.
40% more funds holding in top 10
Funds holding in top 10: 5 → 7 (+2)
38% more first-time investments, than exits
New positions opened: 95 | Existing positions closed: 69
2% more funds holding
Funds holding: 595 → 609 (+14)
0% less capital invested
Capital invested by funds: $8.22B → $8.22B (-$7.36M)
0.42% less ownership
Funds ownership: 93.73% → 93.3% (-0.42%)
27% less repeat investments, than reductions
Existing positions increased: 183 | Existing positions reduced: 252
93% less call options, than puts
Call options by funds: $2.92M | Put options by funds: $41.5M
Top Buyers
Top Sellers
TTEK Hedge Fund Activity: Q4 2025 in Review
609 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Tetra Tech (TTEK) for Q4 2025, worth a combined $8.22B — down 0.09% from $8.22B a quarter earlier.
Buyers outnumbered sellers: 95 funds opened new TTEK positions and 69 closed out — a net gain of 26 holders — while 183 added to existing stakes and 252 trimmed.
The largest buyer was Impax Asset Management Group, opening a new position worth an estimated $108M. The largest seller was AllianceBernstein, cutting an estimated $118M.
- 609 institutional investors held Tetra Tech (TTEK) as of Q4 2025, up from 595 in Q3 2025.
- Funds reported $8.22B of Tetra Tech stock for Q4 2025, down 0.09% quarter-over-quarter.
- 95 funds opened new Tetra Tech positions in Q4 2025 and 69 closed out, a net change of +26 holders.
- The largest Tetra Tech buyer in Q4 2025 was Impax Asset Management Group, an estimated $108M added.
- The largest Tetra Tech seller in Q4 2025 was AllianceBernstein, an estimated $118M sold.
Based on aggregated 13F filings for Q4 2025.