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Ironwood Pharmaceuticals
IRWD

Overview Fund Activity

145 hedge funds and large institutions have $1.55B invested in Ironwood Pharmaceuticals in 2018 Q4 according to their latest regulatory filings, with 30 funds opening new positions, 50 increasing their positions, 40 reducing their positions, and 35 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
145
Holders Change
-6
Holders Change %
-3.97%
% of All Funds
3.24%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
30
Increased
50
Reduced
40
Closed
35
Calls
$18.5M
Puts
$6.85M
Net Calls
+$11.7M
Net Calls Change
+$501K

Top Buyers

1
BCM
Brown Capital Management
Maryland
+$38.1M
2
BM
Bridger Management
New York
+$36.9M
3
SCM
Sarissa Capital Management
Connecticut
+$29.9M
4
UBS AM
UBS AM
Illinois
+$12.3M
5
Millennium Management
Millennium Management
New York
+$11.5M

Top Sellers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$60.4M
2
O
OppenheimerFunds
New York
-$53M
3
Loomis, Sayles & Company
Loomis, Sayles & Company
Massachusetts
-$28.1M
4
Fidelity Investments
Fidelity Investments
Massachusetts
-$23.8M
5
PWAM
Park West Asset Management
California
-$22.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
Wellington Management Group
1
Wellington Management Group
Massachusetts
$203M +$1.2M +138,747 +0.6%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$151M -$23.8M -2,744,986 -14%
Vanguard Group
3
Vanguard Group
Pennsylvania
$138M +$10.7M +1,236,506 +8%
BlackRock
4
BlackRock
New York
$128M +$1.23M +141,992 +1%
BCM
5
Brown Capital Management
Maryland
$105M +$38.1M +4,393,705 +57%
UBS AM
6
UBS AM
Illinois
$76.4M +$12.3M +1,413,768 +19%
Janus Henderson Group
7
Janus Henderson Group
United Kingdom
$68.9M -$13.8M -1,590,371 -17%
SCM
8
Sarissa Capital Management
Connecticut
$64.8M +$29.9M +3,444,929 +86%
EC
9
EcoR1 Capital
California
$55.8M +$2.48M +286,152 +5%
State Street
10
State Street
Massachusetts
$55.4M -$723K -83,275 -1%
MP
11
MFN Partners
Massachusetts
$51.2M +$51.2M +5,897,812 New
BM
12
Bridger Management
New York
$43.3M +$36.9M +4,250,641 +572%
T. Rowe Price Associates
13
T. Rowe Price Associates
Maryland
$32M -$60.4M -6,964,363 -65%
O
14
OrbiMed
New York
$29.8M -$531K -61,193 -2%
Capital World Investors
15
Capital World Investors
California
$21M – – –
Westfield Capital Management
16
Westfield Capital Management
Massachusetts
$20.5M +$995K +114,708 +5%
Norges Bank
17
Norges Bank
Norway
$19.6M +$4.63M +533,497 +31%
Adage Capital Partners
18
Adage Capital Partners
Massachusetts
$19.4M -$5.18M -597,000 -21%
Northern Trust
19
Northern Trust
Illinois
$17.7M +$342K +39,410 +2%
Goldman Sachs
20
Goldman Sachs
New York
$17.6M +$5.75M +662,469 +49%
Geode Capital Management
21
Geode Capital Management
Massachusetts
$17.2M +$978K +112,777 +6%
CS
22
Credit Suisse
Switzerland
$16.5M +$2.2M +253,291 +15%
Citadel Advisors
23
Citadel Advisors
Florida
$15.5M +$10.8M +1,247,315 +230%
New York State Common Retirement Fund
24
New York State Common Retirement Fund
New York
$14.3M -$1.13M -130,754 -7%
Millennium Management
25
Millennium Management
New York
$14.2M +$11.5M +1,327,506 +426%
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