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Ironwood Pharmaceuticals
IRWD

Overview Fund Activity

154 hedge funds and large institutions have $105M invested in Ironwood Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 19 funds opening new positions, 60 increasing their positions, 50 reducing their positions, and 64 closing their positions.

Holders
154
Holders Change
-47
Holders Change %
-23.38%
% of All Funds
2.07%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
19
Increased
60
Reduced
50
Closed
64
Calls
$8.06M
Puts
–
Net Calls
+$8.06M
Net Calls Change
-$8.42M

Top Buyers

1
Acadian Asset Management
1
Acadian Asset Management
Massachusetts
$4.69M
2
AQR Capital Management
2
AQR Capital Management
Connecticut
$4.42M
3
Marshall Wace
3
Marshall Wace
United Kingdom
$2.88M
4
AC
4
Armistice Capital
New York
$11.6M
5
Bank of America
5
Bank of America
North Carolina
$2.41M

Top Sellers

1
B
1
Braidwell
Connecticut
$0
2
Millennium Management
2
Millennium Management
New York
$69.1K
3
Pacer Advisors
3
Pacer Advisors
Pennsylvania
$0
4
Point72 Asset Management
4
Point72 Asset Management
Connecticut
$0
5
JAM
5
Jupiter Asset Management
United Kingdom
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$11.6M 16,202,129 +505,968 +3%
AC
2
Armistice Capital
New York
$11.6M 16,150,000 +2,450,000 +18%
SCM
3
Sarissa Capital Management
Connecticut
$11.4M 15,919,435 -470,565 -3%
BlackRock
4
BlackRock
New York
$8.62M 12,022,998 +144,074 +1%
Renaissance Technologies
5
Renaissance Technologies
New York
$6.03M 8,406,169 -1,534,323 -15%
Acadian Asset Management
6
Acadian Asset Management
Massachusetts
$4.69M 6,549,687 +3,904,498 +148%
AQR Capital Management
7
AQR Capital Management
Connecticut
$4.42M 6,165,637 +3,641,762 +144%
KCM
8
Kynam Capital Management
New Jersey
$3.92M 5,466,825 -356,113 -6%
Marshall Wace
9
Marshall Wace
United Kingdom
$2.88M 3,993,557 +3,436,036 +616%
Charles Schwab
10
Charles Schwab
California
$2.63M 3,664,276 +1,017,261 +38%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$2.51M 3,499,332 +81,243 +2%
Two Sigma Advisers
12
Two Sigma Advisers
New York
$2.43M 3,384,100 +1,499,500 +80%
Bank of America
13
Bank of America
North Carolina
$2.41M 3,357,872 +1,929,356 +135%
Qube Research & Technologies (QRT)
14
Qube Research & Technologies (QRT)
United Kingdom
$2.4M 3,351,002 +43,943 +1%
State Street
15
State Street
Massachusetts
$2.23M 3,107,719 -390,570 -11%
Two Sigma Investments
16
Two Sigma Investments
New York
$1.97M 2,750,573 +1,523,377 +124%
LSV Asset Management
17
LSV Asset Management
Illinois
$1.97M 2,750,200 -1,247,601 -31%
Connor, Clark & Lunn Investment Management (CC&L)
18
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$1.58M 2,206,948 +718,904 +48%
Federated Hermes
19
Federated Hermes
Pennsylvania
$1.56M 2,177,038 +871,676 +67%
Jane Street
20
Jane Street
New York
$1.25M 1,745,122 -1,764,995 -50%
D.E. Shaw & Co
21
D.E. Shaw & Co
New York
$1.2M 1,669,639 +1,559,915 +1,422%
Deutsche Bank
22
Deutsche Bank
Germany
$1.1M 1,523,337 -30,817 -2%
Jacobs Levy Equity Management
23
Jacobs Levy Equity Management
New Jersey
$1.06M 1,475,046 -105,274 -7%
Goldman Sachs
24
Goldman Sachs
New York
$1.04M 1,444,730 -130,686 -8%
Northern Trust
25
Northern Trust
Illinois
$936K 1,305,265 -101,269 -7%
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