Tectonic Therapeutic
TECX
105 hedge funds and large institutions have $288M invested in Tectonic Therapeutic in 2025 Q4 according to their latest regulatory filings, with 30 funds opening new positions, 35 increasing their positions, 24 reducing their positions, and 23 closing their positions.
837% more call options, than puts
Call options by funds: $9.91M | Put options by funds: $1.06M
52% more capital invested
Capital invested by funds: $190M → $288M (+$98.2M)
46% more repeat investments, than reductions
Existing positions increased: 35 | Existing positions reduced: 24
30% more first-time investments, than exits
New positions opened: 30 | Existing positions closed: 23
9.12% more ownership
Funds ownership: 64.69% → 73.81% (+9.1%)
6% more funds holding
Funds holding: 99 → 105 (+6)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BBA
Baker Bros. Advisors
New York
|
+$14.9M |
| 2 |
Aberdeen Group
Edinburgh,
United Kingdom
|
+$14.6M |
| 3 |
O
OrbiMed
New York
|
+$10.7M |
| 4 |
VPC
Vestal Point Capital
New York
|
+$6.1M |
| 5 |
OM
Opaleye Management
Boston,
Massachusetts
|
+$3.99M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
FCM
Farallon Capital Management
San Francisco,
California
|
-$10M |
| 2 |
TAM
TFG Asset Management
Grand Cayman,
Cayman Islands
|
-$3.82M |
| 3 |
FLAM
First Light Asset Management
Edina,
Minnesota
|
-$3.18M |
| 4 |
SC
Stempoint Capital
New York
|
-$2.97M |
| 5 |
TCM
Tang Capital Management
San Diego,
California
|
-$2.81M |
TECX Hedge Fund Activity: Q4 2025 in Review
105 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Tectonic Therapeutic (TECX) for Q4 2025, worth a combined $288M — up 52% from $190M a quarter earlier.
Buyers outnumbered sellers: 30 funds opened new TECX positions and 23 closed out — a net gain of 7 holders — while 35 added to existing stakes and 24 trimmed.
The largest buyer was Baker Bros. Advisors, adding an estimated $14.9M. The largest seller was Farallon Capital Management, exiting entirely with an estimated $10M sold.
- 105 institutional investors held Tectonic Therapeutic (TECX) as of Q4 2025, up from 99 in Q3 2025.
- Funds reported $288M of Tectonic Therapeutic stock for Q4 2025, up 52% quarter-over-quarter.
- 30 funds opened new Tectonic Therapeutic positions in Q4 2025 and 23 closed out, a net change of +7 holders.
- The largest Tectonic Therapeutic buyer in Q4 2025 was Baker Bros. Advisors, an estimated $14.9M added.
- The largest Tectonic Therapeutic seller in Q4 2025 was Farallon Capital Management, an estimated $10M sold.
Based on aggregated 13F filings for Q4 2025.