Q32 Bio
QTTB
73 hedge funds and large institutions have $15.5M invested in Q32 Bio in 2025 Q1 according to their latest regulatory filings, with 7 funds opening new positions, 17 increasing their positions, 20 reducing their positions, and 26 closing their positions.
13.17% less ownership
Funds ownership: 90.27% → 77.11% (-13%)
15% less repeat investments, than reductions
Existing positions increased: 17 | Existing positions reduced: 20
21% less funds holding
Funds holding: 92 → 73 (-19)
25% less funds holding in top 10
Funds holding in top 10: 4 → 3 (-1)
59% less capital invested
Capital invested by funds: $37.8M → $15.5M (-$22.3M)
73% less first-time investments, than exits
New positions opened: 7 | Existing positions closed: 26
88% less call options, than puts
Call options by funds: $1K | Put options by funds: $8K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AQR Capital Management
Greenwich,
Connecticut
|
+$111K |
| 2 |
Acadian Asset Management
Boston,
Massachusetts
|
+$83.8K |
| 3 |
Goldman Sachs
New York
|
+$69.9K |
| 4 |
State Street
Boston,
Massachusetts
|
+$59.1K |
| 5 |
Fidelity Investments
Boston,
Massachusetts
|
+$35.6K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SCM
Sio Capital Management
New York
|
-$2.4M |
| 2 |
Temasek Holdings
Singapore
|
-$1.08M |
| 3 |
ACH
ArrowMark Colorado Holdings
Denver,
Colorado
|
-$280K |
| 4 |
RhumbLine Advisers
Boston,
Massachusetts
|
-$254K |
| 5 |
MAM
Monaco Asset Management
Monaco
|
-$187K |
QTTB Hedge Fund Activity: Q1 2025 in Review
73 of the 7,461 institutional investors tracked by Wall St. Rank reported a position in Q32 Bio (QTTB) for Q1 2025, worth a combined $15.5M — down 59% from $37.8M a quarter earlier.
Sellers outnumbered buyers: 26 funds closed out of QTTB and 7 opened new positions — a net loss of 19 holders — while 20 trimmed existing stakes and 17 added.
The largest buyer was AQR Capital Management, opening a new position worth an estimated $111K. The largest seller was Sio Capital Management, exiting entirely with an estimated $2.4M sold.
- 73 institutional investors held Q32 Bio (QTTB) as of Q1 2025, down from 92 in Q4 2024.
- Funds reported $15.5M of Q32 Bio stock for Q1 2025, down 59% quarter-over-quarter.
- 7 funds opened new Q32 Bio positions in Q1 2025 and 26 closed out, a net change of -19 holders.
- The largest Q32 Bio buyer in Q1 2025 was AQR Capital Management, an estimated $111K added.
- The largest Q32 Bio seller in Q1 2025 was Sio Capital Management, an estimated $2.4M sold.
Based on aggregated 13F filings for Q1 2025.