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Ironwood Pharmaceuticals
IRWD

Overview Fund Activity

156 hedge funds and large institutions have $2.09B invested in Ironwood Pharmaceuticals in 2019 Q1 according to their latest regulatory filings, with 34 funds opening new positions, 54 increasing their positions, 44 reducing their positions, and 23 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
156
Holders Change
+11
Holders Change %
+7.59%
% of All Funds
3.38%
Holding in Top 10
4
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+33.33%
% of All Funds
0.09%
New
34
Increased
54
Reduced
44
Closed
23
Calls
$24M
Puts
$8.25M
Net Calls
+$15.8M
Net Calls Change
+$4.12M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
+$27.7M
2
Citadel Advisors
Citadel Advisors
Florida
+$24.8M
3
Vanguard Group
Vanguard Group
Pennsylvania
+$21.4M
4
SCM
Sarissa Capital Management
Connecticut
+$17.5M
5
HM
HealthCor Management
New York
+$10.1M

Top Sellers

1
O
OrbiMed
New York
-$29.8M
2
EC
EcoR1 Capital
California
-$13.3M
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$12M
4
Millennium Management
Millennium Management
New York
-$6.83M
5
UBS Group
UBS Group
Switzerland
-$5.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
Wellington Management Group
1
Wellington Management Group
Massachusetts
$292M +$27.7M +2,445,895 +10%
Vanguard Group
2
Vanguard Group
Pennsylvania
$202M +$21.4M +1,887,368 +12%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$197M -$415K -36,635 -0.2%
BlackRock
4
BlackRock
New York
$163M -$3.89M -343,158 -2%
BCM
5
Brown Capital Management
Maryland
$140M +$2.67M +235,585 +2%
SCM
6
Sarissa Capital Management
Connecticut
$102M +$17.5M +1,540,141 +21%
UBS AM
7
UBS AM
Illinois
$96.4M -$3.36M -296,860 -3%
Janus Henderson Group
8
Janus Henderson Group
United Kingdom
$90M -$25.3K -2,231 -0%
State Street
9
State Street
Massachusetts
$75.4M +$3.03M +267,006 +4%
MP
10
MFN Partners
Massachusetts
$66.8M – – –
EC
11
EcoR1 Capital
California
$59.5M -$13.3M -1,175,032 -18%
BM
12
Bridger Management
New York
$56.6M – – –
Citadel Advisors
13
Citadel Advisors
Florida
$45.1M +$24.8M +2,191,650 +123%
T. Rowe Price Associates
14
T. Rowe Price Associates
Maryland
$29.8M -$12M -1,061,830 -29%
Norges Bank
15
Norges Bank
Norway
$28.1M +$2.54M +223,796 +10%
Capital World Investors
16
Capital World Investors
California
$27.5M – – –
Geode Capital Management
17
Geode Capital Management
Massachusetts
$26.3M +$3.83M +338,171 +17%
Westfield Capital Management
18
Westfield Capital Management
Massachusetts
$25.5M -$1.26M -111,048 -5%
Adage Capital Partners
19
Adage Capital Partners
Massachusetts
$25.4M – – –
Northern Trust
20
Northern Trust
Illinois
$23.7M +$566K +49,988 +2%
Goldman Sachs
21
Goldman Sachs
New York
$23.1M +$86.9K +7,672 +0.4%
CS
22
Credit Suisse
Switzerland
$21.6M +$86.6K +7,644 +0.4%
New York State Common Retirement Fund
23
New York State Common Retirement Fund
New York
$18.4M -$265K -23,371 -1%
D.E. Shaw & Co
24
D.E. Shaw & Co
New York
$13.4M +$3.63M +320,099 +37%
Millennium Management
25
Millennium Management
New York
$11.7M -$6.83M -602,997 -37%
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