Arrowhead Research
ARWR
265 hedge funds and large institutions have $1.34B invested in Arrowhead Research in 2025 Q1 according to their latest regulatory filings, with 43 funds opening new positions, 89 increasing their positions, 82 reducing their positions, and 46 closing their positions.
67% more funds holding in top 10
Funds holding in top 10: 3 → 5 (+2)
9% more repeat investments, than reductions
Existing positions increased: 89 | Existing positions reduced: 82
7% less first-time investments, than exits
New positions opened: 43 | Existing positions closed: 46
1% less funds holding
Funds holding: 269 → 265 (-4)
3.44% less ownership
Funds ownership: 80.16% → 76.72% (-3.4%)
25% less call options, than puts
Call options by funds: $4.66M | Put options by funds: $6.24M
28% less capital invested
Capital invested by funds: $1.88B → $1.34B (-$532M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$68.2M |
| 2 |
UBS AM
Chicago,
Illinois
|
+$50.5M |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$18.5M |
| 4 |
State Street
Boston,
Massachusetts
|
+$17.9M |
| 5 |
Aberdeen Group
Edinburgh,
United Kingdom
|
+$11.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$32.5M |
| 2 |
JP Morgan Chase
New York
|
-$27.9M |
| 3 |
Jane Street
New York
|
-$11.2M |
| 4 |
FCM
Farallon Capital Management
San Francisco,
California
|
-$11.1M |
| 5 |
SSA
Schonfeld Strategic Advisors
New York
|
-$10.5M |
ARWR Hedge Fund Activity: Q1 2025 in Review
265 of the 7,459 institutional investors tracked by Wall St. Rank reported a position in Arrowhead Research (ARWR) for Q1 2025, worth a combined $1.34B — down 28% from $1.88B a quarter earlier.
Sellers outnumbered buyers: 46 funds closed out of ARWR and 43 opened new positions — a net loss of 3 holders — while 82 trimmed existing stakes and 89 added.
The largest buyer was BlackRock, adding an estimated $68.2M. The largest seller was Fidelity Investments, cutting an estimated $32.5M.
- 265 institutional investors held Arrowhead Research (ARWR) as of Q1 2025, down from 269 in Q4 2024.
- Funds reported $1.34B of Arrowhead Research stock for Q1 2025, down 28% quarter-over-quarter.
- 43 funds opened new Arrowhead Research positions in Q1 2025 and 46 closed out, a net change of -3 holders.
- The largest Arrowhead Research buyer in Q1 2025 was BlackRock, an estimated $68.2M added.
- The largest Arrowhead Research seller in Q1 2025 was Fidelity Investments, an estimated $32.5M sold.
Based on aggregated 13F filings for Q1 2025.