Tectonic Therapeutic
TECX
82 hedge funds and large institutions have $241M invested in Tectonic Therapeutic in 2025 Q2 according to their latest regulatory filings, with 18 funds opening new positions, 34 increasing their positions, 13 reducing their positions, and 14 closing their positions.
162% more repeat investments, than reductions
Existing positions increased: 34 | Existing positions reduced: 13
71% more call options, than puts
Call options by funds: $29K | Put options by funds: $17K
29% more first-time investments, than exits
New positions opened: 18 | Existing positions closed: 14
21% more capital invested
Capital invested by funds: $199M → $241M (+$41.9M)
5% more funds holding
Funds holding: 78 → 82 (+4)
4.7% more ownership
Funds ownership: 60.17% → 64.87% (+4.7%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$11.3M |
| 2 |
Vanguard Group
Malvern,
Pennsylvania
|
+$4.53M |
| 3 |
Geode Capital Management
Boston,
Massachusetts
|
+$3.91M |
| 4 |
State Street
Boston,
Massachusetts
|
+$2.03M |
| 5 |
SAM
Sectoral Asset Management
Montreal,
Quebec, Canada
|
+$2.01M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$3.31M |
| 2 |
IC
Ikarian Capital
Dallas,
Texas
|
-$2.14M |
| 3 |
Goldman Sachs
New York
|
-$1.86M |
| 4 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$1.78M |
| 5 |
Adage Capital Partners
Boston,
Massachusetts
|
-$1.77M |
TECX Hedge Fund Activity: Q2 2025 in Review
82 of the 7,613 institutional investors tracked by Wall St. Rank reported a position in Tectonic Therapeutic (TECX) for Q2 2025, worth a combined $241M — up 21% from $199M a quarter earlier.
Buyers outnumbered sellers: 18 funds opened new TECX positions and 14 closed out — a net gain of 4 holders — while 34 added to existing stakes and 13 trimmed.
The largest buyer was BlackRock, adding an estimated $11.3M. The largest seller was Millennium Management, cutting an estimated $3.31M.
- 82 institutional investors held Tectonic Therapeutic (TECX) as of Q2 2025, up from 78 in Q1 2025.
- Funds reported $241M of Tectonic Therapeutic stock for Q2 2025, up 21% quarter-over-quarter.
- 18 funds opened new Tectonic Therapeutic positions in Q2 2025 and 14 closed out, a net change of +4 holders.
- The largest Tectonic Therapeutic buyer in Q2 2025 was BlackRock, an estimated $11.3M added.
- The largest Tectonic Therapeutic seller in Q2 2025 was Millennium Management, an estimated $3.31M sold.
Based on aggregated 13F filings for Q2 2025.