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Ironwood Pharmaceuticals
IRWD
IRWD
226 hedge funds and large institutions have $567M invested in Ironwood Pharmaceuticals in 2026 Q1 according to their latest regulatory filings, with 56 funds opening new positions, 86 increasing their positions, 56 reducing their positions, and 25 closing their positions.
New
Increased
Maintained
Reduced
Closed
1,845% more call options, than puts
Call options by funds: $40.7M | Put options by funds: $2.09M
124% more first-time investments, than exits
New positions opened: 56 | Existing positions closed: 25
54% more repeat investments, than reductions
Existing positions increased: 86 | Existing positions reduced: 56
14% more funds holding
Funds holding: 199 → 226 (+27)
9% more capital invested
Capital invested by funds: $520M → $567M (+$46.5M)
3.96% more ownership
Funds ownership: 95.06% → 99.02% (+4%)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
Holders
226
Holders Change
+27
Holders Change %
+13.57%
% of All Funds
2.78%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
56
Increased
86
Reduced
56
Closed
25
Calls
$40.7M
Puts
$2.09M
Net Calls
+$38.6M
Net Calls Change
-$493K
Top Buyers
| 1 |
State Street
Boston,
Massachusetts
|
+$12.5M |
| 2 |
Two Sigma Investments
New York
|
+$12.3M |
| 3 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$12.2M |
| 4 |
AQR Capital Management
Greenwich,
Connecticut
|
+$11.5M |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
+$7.18M |
Top Sellers
| 1 |
SCM
Sarissa Capital Management
Greenwich,
Connecticut
|
-$27.6M |
| 2 |
Bank of America
Charlotte,
North Carolina
|
-$11.6M |
| 3 |
Jane Street
New York
|
-$9.01M |
| 4 |
AC
Armistice Capital
New York
|
-$4.09M |
| 5 |
Lazard Asset Management
New York
|
-$2.91M |
