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Ironwood Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
Wellington Management Group
1
Wellington Management Group
Massachusetts
$292M +$27.3M +2,445,895 +10%
Vanguard Group
2
Vanguard Group
Pennsylvania
$202M +$21.1M +1,887,368 +12%
Fidelity Investments
3
Fidelity Investments
Massachusetts
$197M -$409K -36,635 -0.2%
BlackRock
4
BlackRock
New York
$163M -$3.83M -343,158 -2%
BCM
5
Brown Capital Management
Maryland
$140M +$2.63M +235,585 +2%
SCM
6
Sarissa Capital Management
Connecticut
$102M +$17.2M +1,540,141 +21%
UBS AM
7
UBS AM
Illinois
$96.4M -$3.32M -296,860 -3%
Janus Henderson Group
8
Janus Henderson Group
$90M -$24.9K -2,231 -0%
State Street
9
State Street
Massachusetts
$75.4M +$2.98M +267,006 +4%
MP
10
MFN Partners
Massachusetts
$66.8M
EC
11
EcoR1 Capital
California
$59.5M -$13.1M -1,175,032 -18%
BM
12
Bridger Management
New York
$56.6M
Citadel Advisors
13
Citadel Advisors
Florida
$45.1M +$24.5M +2,191,650 +123%
T. Rowe Price Associates
14
T. Rowe Price Associates
Maryland
$29.8M -$11.9M -1,061,830 -29%
Norges Bank
15
Norges Bank
Norway
$28.1M +$2.5M +223,796 +10%
Capital World Investors
16
Capital World Investors
California
$27.5M
Geode Capital Management
17
Geode Capital Management
Massachusetts
$26.3M +$3.78M +338,171 +17%
Westfield Capital Management
18
Westfield Capital Management
Massachusetts
$25.5M -$1.24M -111,048 -5%
Adage Capital Partners
19
Adage Capital Partners
Massachusetts
$25.4M
Northern Trust
20
Northern Trust
Illinois
$23.7M +$558K +49,988 +2%
Goldman Sachs
21
Goldman Sachs
New York
$23.1M +$85.7K +7,672 +0.4%
CS
22
Credit Suisse
Switzerland
$21.6M +$85.4K +7,644 +0.4%
New York State Common Retirement Fund
23
New York State Common Retirement Fund
New York
$18.4M -$261K -23,371 -1%
D.E. Shaw & Co
24
D.E. Shaw & Co
New York
$13.4M +$3.57M +320,099 +37%
Millennium Management
25
Millennium Management
New York
$11.7M -$6.73M -602,997 -37%