Institutional Ownership Ironwood Pharmaceuticals Inc (IRWD)
This table provides information about the institutional ownership of Ironwood Pharmaceuticals Inc (IRWD). We have compiled data on the 186 institutions that hold shares in the stock, with a total of 160 Million shares, which have been reported (via 13F filing form) to have a value of $501 Million.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Black Rock Inc.
New York, NY |
Aug 13, 2024 Q2 2024 |
22,877,015
shares
|
$71.8 Million
0.0% of portfolio
|
Q2 2024
Reduced 5.3%
|
|
|
Armistice Capital, LLC
New York, NY |
Nov 14, 2025 Q3 2025 |
16,150,000
shares
|
$50.7 Million
0.32% of portfolio
|
Q2 2025
Added 17.88%
|
|
|
Vanguard Group Inc
Valley Forge, PA |
Nov 07, 2025 Q3 2025 |
16,072,006
shares
|
$50.5 Million
0.0% of portfolio
|
Q3 2025
Reduced 0.8%
|
|
|
Sarissa Capital Management LP
Greenwich, CT |
Nov 14, 2025 Q3 2025 |
15,919,435
shares
|
$50 Million
13.13% of portfolio
|
Q2 2025
Reduced 2.87%
|
|
|
Bank Of America Corp
Charlotte, NC |
Nov 14, 2025 Q3 2025 |
11,695,544
shares
|
$36.7 Million
0.0% of portfolio
|
Q3 2025
Added 248.3%
|
|
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
Nov 13, 2025 Q3 2025 |
8,352,173
shares
|
$26.2 Million
0.02% of portfolio
|
Q3 2025
Reduced 0.64%
|
|
|
Acadian Asset Management LLC
Boston, MA |
Nov 13, 2025 Q3 2025 |
6,502,493
shares
|
$20.4 Million
0.01% of portfolio
|
Q3 2025
Reduced 0.72%
|
|
|
Kynam Capital Management, LP
Princeton, NJ |
Nov 14, 2025 Q3 2025 |
5,466,825
shares
|
$17.2 Million
0.61% of portfolio
|
Q2 2025
Reduced 6.12%
|
|
|
Aqr Capital Management LLC
Greenwich, CT |
Nov 14, 2025 Q3 2025 |
5,378,535
shares
|
$16.9 Million
0.0% of portfolio
|
Q3 2025
Reduced 12.77%
|
|
|
Charles Schwab Investment Management Inc
San Francisco, CA |
Nov 10, 2025 Q3 2025 |
4,917,336
shares
|
$15.4 Million
0.0% of portfolio
|
Q3 2025
Added 34.2%
|
|
|
Geode Capital Management, LLC
Boston, MA |
Nov 12, 2025 Q3 2025 |
3,614,987
shares
|
$11.4 Million
0.0% of portfolio
|
Q3 2025
Added 3.31%
|
|
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
Nov 14, 2025 Q3 2025 |
3,316,500
shares
|
$10.4 Million
0.01% of portfolio
|
Q3 2025
Reduced 2.0%
|
|
|
State Street Corp
Boston, MA |
Nov 14, 2025 Q3 2025 |
3,156,307
shares
|
$9.91 Million
0.0% of portfolio
|
Q3 2025
Added 1.56%
|
|
|
Marshall Wace, LLP
London, X0 |
Nov 13, 2025 Q3 2025 |
3,144,139
shares
|
$9.87 Million
0.0% of portfolio
|
Q3 2025
Reduced 21.27%
|
|
|
Qube Research & Technologies LTD
London, X0 |
Nov 14, 2025 Q3 2025 |
2,806,910
shares
|
$8.81 Million
0.0% of portfolio
|
Q3 2025
Reduced 16.24%
|
|
|
Two Sigma Investments, LP
New York, NY |
Nov 14, 2025 Q3 2025 |
2,534,511
shares
|
$7.96 Million
0.01% of portfolio
|
Q3 2025
Reduced 7.86%
|
|
|
Jane Street Group, LLC
New York, NY |
Nov 13, 2025 Q3 2025 |
2,321,095
shares
|
$7.29 Million
0.0% of portfolio
|
Q3 2025
Added 33.0%
|
|
|
Connor, Clark & Lunn Investment Management Ltd.
|
Nov 13, 2025 Q3 2025 |
2,161,818
shares
|
$6.79 Million
0.01% of portfolio
|
Q3 2025
Reduced 2.04%
|
|
|
Federated Hermes, Inc.
Pittsburgh, PA |
Nov 03, 2025 Q3 2025 |
2,157,104
shares
|
$6.77 Million
0.01% of portfolio
|
Q3 2025
Reduced 0.92%
|
|
|
Jacobs Levy Equity Management, Inc
Florham Park, NJ |
Nov 17, 2025 Q3 2025 |
1,920,530
shares
|
$6.03 Million
0.01% of portfolio
|
Q3 2025
Added 30.2%
|
|
|
Deutsche Bank Ag\
Frankfurt Am Main, 2M |
Nov 13, 2025 Q3 2025 |
1,527,229
shares
|
$4.8 Million
0.0% of portfolio
|
Q3 2025
Added 0.26%
|
|
|
Northern Trust Corp
Chicago, IL |
Nov 14, 2025 Q3 2025 |
1,340,906
shares
|
$4.21 Million
0.0% of portfolio
|
Q3 2025
Added 2.73%
|
|
|
Los Angeles Capital Management LLC
|
Oct 20, 2025 Q3 2025 |
1,130,052
shares
|
$3.55 Million
0.01% of portfolio
|
Q3 2025
Reduced 6.7%
|
|
|
Goldman Sachs Group Inc
New York, NY |
Nov 14, 2025 Q3 2025 |
1,084,367
shares
|
$3.4 Million
0.0% of portfolio
|
Q3 2025
Reduced 24.94%
|
|
|
Ubs Group Ag
|
Nov 13, 2025 Q3 2025 |
811,664
shares
|
$2.55 Million
0.0% of portfolio
|
Q3 2025
Added 170.46%
|
|