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Name Holding Trade Value Shares
Change
Change in
Stake
PA
1
Perceptive Advisors
New York
$17.9M +$1.84M +182,086 +10%
Primecap Management
2
Primecap Management
California
$15.3M
Fidelity Investments
3
Fidelity Investments
Massachusetts
$13.4M
RCM
4
RA Capital Management
Massachusetts
$11.6M +$2.35M +232,188 +23%
Adage Capital Partners
5
Adage Capital Partners
Massachusetts
$11.6M +$2.23M +220,000 +21%
O
6
OrbiMed
New York
$7.81M +$374K +37,000 +5%
FCMI
7
Foresite Capital Management I
California
$7.52M -$101K -9,944 -1%
BC
8
Broadfin Capital
New York
$7.02M -$214K -21,198 -3%
QF
9
QVT Financial
New York
$6.71M -$350K -34,600 -4%
BBA
10
Baker Bros. Advisors
New York
$5.05M
Vanguard Group
11
Vanguard Group
Pennsylvania
$3.77M +$125K +12,403 +3%
BFA
12
BlackRock Fund Advisors
California
$3.28M -$151K -14,944 -4%
State Street
13
State Street
Massachusetts
$2.29M +$68.8K +6,798 +3%
SM
14
Sabby Management
Florida
$1.59M -$389K -38,411 -18%
JP Morgan Chase
15
JP Morgan Chase
New York
$1.59M -$184K -18,192 -10%
Northern Trust
16
Northern Trust
Illinois
$1.49M +$103K +10,164 +7%
BIT
17
BlackRock Institutional Trust
California
$1.17M -$80.4K -7,944 -6%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$806K +$39.9K +3,942 +5%
TCIM
19
TIAA CREF Investment Management
New York
$520K
Bank of New York Mellon
20
Bank of New York Mellon
New York
$464K +$29.3K +2,900 +6%
Goldman Sachs
21
Goldman Sachs
New York
$458K +$306K +30,284 +160%
BIM
22
BlackRock Investment Management
Delaware
$403K +$3.58K +354 +0.8%
GA
23
Geneva Advisors
Illinois
$362K +$394K +38,919 New
FSA
24
Franklin Street Advisors
North Carolina
$324K +$66.8K +6,600 +23%
California State Teachers Retirement System (CalSTRS)
25
California State Teachers Retirement System (CalSTRS)
California
$251K +$1.56K +154 +0.6%