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Arrowhead Research
ARWR
ARWR
436 hedge funds and large institutions have $7.58B invested in Arrowhead Research in 2026 Q1 according to their latest regulatory filings, with 106 funds opening new positions, 169 increasing their positions, 113 reducing their positions, and 61 closing their positions.
New
Increased
Maintained
Reduced
Closed
90% more call options, than puts
Call options by funds: $106M | Put options by funds: $55.8M
74% more first-time investments, than exits
New positions opened: 106 | Existing positions closed: 61
50% more repeat investments, than reductions
Existing positions increased: 169 | Existing positions reduced: 113
38% more funds holding in top 10
Funds holding in top 10: 8 → 11 (+3)
9% more funds holding
Funds holding: 401 → 436 (+35)
0.9% more ownership
Funds ownership: 85.43% → 86.34% (+0.9%)
2% less capital invested
Capital invested by funds: $7.71B → $7.58B (-$126M)
Holders
436
Holders Change
+35
Holders Change %
+8.73%
% of All Funds
5.37%
Holding in Top 10
11
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+37.5%
% of All Funds
0.14%
New
106
Increased
169
Reduced
113
Closed
61
Calls
$106M
Puts
$55.8M
Net Calls
+$50.4M
Net Calls Change
-$58.7M
Top Buyers
| 1 |
Invesco
Atlanta,
Georgia
|
+$173M |
| 2 |
FAM
Fred Alger Management
New York
|
+$95.6M |
| 3 |
VPC
Vestal Point Capital
New York
|
+$87M |
| 4 |
HRCM
Hood River Capital Management
Palm Beach Gardens,
Florida
|
+$66.9M |
| 5 |
D.E. Shaw & Co
New York
|
+$65.7M |
Top Sellers
| 1 |
BlackRock
New York
|
-$200M |
| 2 |
SPC
Slate Path Capital
New York
|
-$168M |
| 3 |
Arrowstreet Capital
Boston,
Massachusetts
|
-$95M |
| 4 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$39.6M |
| 5 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
-$36.7M |
