Regenxbio
RGNX
178 hedge funds and large institutions have $355M invested in Regenxbio in 2026 Q1 according to their latest regulatory filings, with 33 funds opening new positions, 61 increasing their positions, 58 reducing their positions, and 26 closing their positions.
60% more call options, than puts
Call options by funds: $3.78M | Put options by funds: $2.36M
27% more first-time investments, than exits
New positions opened: 33 | Existing positions closed: 26
2% more funds holding
Funds holding: 174 → 178 (+4)
1.24% more ownership
Funds ownership: 81.28% → 82.52% (+1.2%)
5% more repeat investments, than reductions
Existing positions increased: 61 | Existing positions reduced: 58
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
40% less capital invested
Capital invested by funds: $593M → $355M (-$238M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$9.12M |
| 2 |
State Street
Boston,
Massachusetts
|
+$4.67M |
| 3 |
Two Sigma Investments
New York
|
+$4.46M |
| 4 |
IHAM
Integral Health Asset Management
New York
|
+$3.15M |
| 5 |
YIH
Y-Intercept (HK)
Hong Kong
|
+$2.89M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
2L
22NW LP
Seattle,
Washington
|
-$4.53M |
| 2 |
Acadian Asset Management
Boston,
Massachusetts
|
-$3.91M |
| 3 |
TI
Trexquant Investment
Stamford,
Connecticut
|
-$3.61M |
| 4 |
AQR Capital Management
Greenwich,
Connecticut
|
-$3.26M |
| 5 |
MCM
Moore Capital Management
New York
|
-$2.88M |
RGNX Hedge Fund Activity: Q1 2026 in Review
178 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Regenxbio (RGNX) for Q1 2026, worth a combined $355M — down 40% from $593M a quarter earlier.
Buyers outnumbered sellers: 33 funds opened new RGNX positions and 26 closed out — a net gain of 7 holders — while 61 added to existing stakes and 58 trimmed.
The largest buyer was Qube Research & Technologies (QRT), adding an estimated $9.12M. The largest seller was 22NW LP, cutting an estimated $4.53M.
- 178 institutional investors held Regenxbio (RGNX) as of Q1 2026, up from 174 in Q4 2025.
- Funds reported $355M of Regenxbio stock for Q1 2026, down 40% quarter-over-quarter.
- 33 funds opened new Regenxbio positions in Q1 2026 and 26 closed out, a net change of +7 holders.
- The largest Regenxbio buyer in Q1 2026 was Qube Research & Technologies (QRT), an estimated $9.12M added.
- The largest Regenxbio seller in Q1 2026 was 22NW LP, an estimated $4.53M sold.
Based on aggregated 13F filings for Q1 2026.