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 176 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 $211 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
|
$30 Million
0.0% of portfolio
|
Q2 2024
Reduced 5.3%
|
|
|
Vanguard Group Inc
Valley Forge, PA |
Aug 11, 2025 Q2 2025 |
16,202,129
shares
|
$21.2 Million
0.0% of portfolio
|
Q2 2025
Added 3.22%
|
|
|
Armistice Capital, LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
16,150,000
shares
|
$21.2 Million
0.2% of portfolio
|
Q2 2025
Added 17.88%
|
|
|
Sarissa Capital Management LP
Greenwich, CT |
Aug 14, 2025 Q2 2025 |
15,919,435
shares
|
$20.9 Million
8.54% of portfolio
|
Q2 2025
Reduced 2.87%
|
|
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
Aug 13, 2025 Q2 2025 |
8,406,169
shares
|
$11 Million
0.01% of portfolio
|
Q2 2025
Reduced 15.44%
|
|
|
Acadian Asset Management LLC
Boston, MA |
Aug 07, 2025 Q2 2025 |
6,549,687
shares
|
$8.58 Million
0.01% of portfolio
|
Q2 2025
Added 147.61%
|
|
|
Aqr Capital Management LLC
Greenwich, CT |
Aug 14, 2025 Q2 2025 |
6,165,637
shares
|
$8.08 Million
0.0% of portfolio
|
Q2 2025
Added 144.29%
|
|
|
Kynam Capital Management, LP
Princeton, NJ |
Aug 14, 2025 Q2 2025 |
5,466,825
shares
|
$7.16 Million
0.47% of portfolio
|
Q2 2025
Reduced 6.12%
|
|
|
Marshall Wace, LLP
London, X0 |
Aug 13, 2025 Q2 2025 |
3,993,557
shares
|
$5.23 Million
0.0% of portfolio
|
Q2 2025
Added 616.31%
|
|
|
Charles Schwab Investment Management Inc
San Francisco, CA |
Aug 12, 2025 Q2 2025 |
3,664,276
shares
|
$4.8 Million
0.0% of portfolio
|
Q2 2025
Added 38.43%
|
|
|
Geode Capital Management, LLC
Boston, MA |
Aug 08, 2025 Q2 2025 |
3,499,332
shares
|
$4.58 Million
0.0% of portfolio
|
Q2 2025
Added 2.38%
|
|
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
Aug 14, 2025 Q2 2025 |
3,384,100
shares
|
$4.43 Million
0.01% of portfolio
|
Q2 2025
Added 79.57%
|
|
|
Bank Of America Corp
Charlotte, NC |
Aug 14, 2025 Q2 2025 |
3,357,872
shares
|
$4.4 Million
0.0% of portfolio
|
Q2 2025
Added 135.06%
|
|
|
Qube Research & Technologies LTD
London, X0 |
Aug 14, 2025 Q2 2025 |
3,351,002
shares
|
$4.39 Million
0.0% of portfolio
|
Q2 2025
Added 1.33%
|
|
|
State Street Corp
Boston, MA |
Aug 14, 2025 Q2 2025 |
3,107,719
shares
|
$4.07 Million
0.0% of portfolio
|
Q2 2025
Reduced 11.16%
|
|
|
Two Sigma Investments, LP
New York, NY |
Aug 14, 2025 Q2 2025 |
2,750,573
shares
|
$3.6 Million
0.0% of portfolio
|
Q2 2025
Added 124.13%
|
|
|
Lsv Asset Management
Chicago, IL |
Aug 11, 2025 Q2 2025 |
2,750,200
shares
|
$3.6 Million
0.0% of portfolio
|
Q2 2025
Reduced 31.21%
|
|
|
Connor, Clark & Lunn Investment Management Ltd.
|
Aug 07, 2025 Q2 2025 |
2,206,948
shares
|
$2.89 Million
0.01% of portfolio
|
Q2 2025
Added 48.31%
|
|
|
Federated Hermes, Inc.
Pittsburgh, PA |
Aug 13, 2025 Q2 2025 |
2,177,038
shares
|
$2.85 Million
0.0% of portfolio
|
Q2 2025
Added 66.78%
|
|
|
Jane Street Group, LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
1,745,122
shares
|
$2.29 Million
0.0% of portfolio
|
Q2 2025
Reduced 50.28%
|
|
|
Jpmorgan Chase & CO
New York, NY |
May 12, 2025 Q1 2025 |
1,702,633
shares
|
$2.23 Million
0.0% of portfolio
|
Q1 2025
Added 58.46%
|
|
|
D. E. Shaw & Co., Inc.
New York, NY |
Aug 14, 2025 Q2 2025 |
1,669,639
shares
|
$2.19 Million
0.0% of portfolio
|
Q2 2025
Added 1421.67%
|
|
|
Deutsche Bank Ag\
Frankfurt Am Main, 2M |
Aug 12, 2025 Q2 2025 |
1,523,337
shares
|
$2 Million
0.0% of portfolio
|
Q2 2025
Reduced 1.98%
|
|
|
Jacobs Levy Equity Management, Inc
Florham Park, NJ |
Aug 14, 2025 Q2 2025 |
1,475,046
shares
|
$1.93 Million
0.0% of portfolio
|
Q2 2025
Reduced 6.66%
|
|
|
Goldman Sachs Group Inc
New York, NY |
Aug 14, 2025 Q2 2025 |
1,444,730
shares
|
$1.89 Million
0.0% of portfolio
|
Q2 2025
Reduced 8.3%
|