We are live on ! Find out more
TECX

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.

New
Increased
Maintained
Reduced
Closed

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%)

Holders
82
Holders Change
+4
Holders Change %
+5.13%
% of All Funds
1.08%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
18
Increased
34
Reduced
13
Closed
14
Calls
$29K
Puts
$17K
Net Calls
+$12K
Net Calls Change
+$12K

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$11.3M
2
Vanguard Group
Vanguard Group
Pennsylvania
+$4.53M
3
Geode Capital Management
Geode Capital Management
Massachusetts
+$3.91M
4
State Street
State Street
Massachusetts
+$2.03M
5
SAM
Sectoral Asset Management
Quebec, Canada
+$2.01M

Top Sellers

Rank Fund Capital Flow
1
Millennium Management
Millennium Management
New York
-$3.31M
2
IC
Ikarian Capital
Texas
-$2.14M
3
Goldman Sachs
Goldman Sachs
New York
-$1.86M
4
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$1.78M
5
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$1.77M
Name Holding Trade Value Shares
Change 		Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$55.7M +$29.9K +1,476 +0.1%
DTC
2
Deep Track Capital
Connecticut
$27.9M – – –
EC
3
EcoR1 Capital
California
$18.6M – – –
FCM
4
Farallon Capital Management
California
$17M – – –
BlackRock
5
BlackRock
New York
$15.1M +$11.3M +555,769 +270%
Vanguard Group
6
Vanguard Group
Pennsylvania
$11.6M +$4.53M +223,225 +62%
5VM
7
5AM Venture Management
California
$10.2M – – –
PM
8
Prosight Management
Texas
$8.78M +$875K +43,171 +11%
WP
9
Woodline Partners
California
$6.39M +$394K +19,422 +6%
BG
10
Bollard Group
Massachusetts
$6.02M – – –
Geode Capital Management
11
Geode Capital Management
Massachusetts
$5.41M +$3.91M +192,770 +243%
Point72 Asset Management
12
Point72 Asset Management
Connecticut
$4.59M +$629K +31,032 +16%
TAM
13
TFG Asset Management
Cayman Islands
$4.55M +$838K +41,332 +22%
TCM
14
Tang Capital Management
California
$3.56M – – –
Citadel Advisors
15
Citadel Advisors
Florida
$3.28M +$1.45M +71,572 +77%
IC
16
Ikarian Capital
Texas
$3.25M -$2.14M -105,394 -39%
ABG
17
Ally Bridge Group
New York
$3.25M +$638K +31,461 +24%
Morgan Stanley
18
Morgan Stanley
New York
$3.19M -$77.1K -3,805 -2%
State Street
19
State Street
Massachusetts
$2.6M +$2.03M +100,236 +325%
BBA
20
Baker Bros. Advisors
New York
$1.99M – – –
SAM
21
Sectoral Asset Management
Quebec, Canada
$1.97M +$2.01M +98,970 New
Renaissance Technologies
22
Renaissance Technologies
New York
$1.73M -$1.16M -57,315 -40%
Squarepoint
23
Squarepoint
New York
$1.7M +$658K +32,472 +61%
Northern Trust
24
Northern Trust
Illinois
$1.57M +$1.31M +64,392 +439%
SCM
25
Superstring Capital Management
New York
$1.57M +$574K +28,312 +56%
1
2 3 4

TECX Hedge Fund Activity: Q2 2025 in Review

82 of the 7,596 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.