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Gossamer Bio

Name Holding Trade Value Shares
Change
Change in
Stake
NMC
1
NEA Management Company
Maryland
$47.6M – – –
OCA
2
Octagon Capital Advisors
New York
$44.8M -$2.87M -16,250 -7%
BlackRock
3
BlackRock
New York
$36.4M +$3.75M +21,294 +14%
Vanguard Group
4
Vanguard Group
Pennsylvania
$31.6M +$1.32M +7,487 +5%
AVM
5
Arch Venture Management
Illinois
$21.2M – – –
SB
6
Samsara BioCapital
California
$16.1M – – –
PAI
7
Palo Alto Investors
California
$14.4M -$606K -3,434 -5%
SL
8
Siren LLC
Connecticut
$13.7M – – –
6CM
9
683 Capital Management
New York
$13.3M -$2.82M -16,010 -20%
Acadian Asset Management
10
Acadian Asset Management
Massachusetts
$13.2M -$4.7M -26,663 -30%
HA
11
HHLR Advisors
Cayman Islands
$13.1M – – –
SCM
12
Silverarc Capital Management
Massachusetts
$12.6M -$810K -4,596 -7%
Geode Capital Management
13
Geode Capital Management
Massachusetts
$12.3M +$296K +1,680 +3%
Fidelity Investments
14
Fidelity Investments
Massachusetts
$10.7M -$7.12M -40,375 -44%
State Street
15
State Street
Massachusetts
$10.2M +$3.09M +17,528 +57%
PA
16
Perceptive Advisors
New York
$10M +$8.4M +47,660 New
Millennium Management
17
Millennium Management
New York
$9.52M +$6.88M +39,039 +629%
RSCM
18
Rock Springs Capital Management
Maryland
$8.59M – – –
Renaissance Technologies
19
Renaissance Technologies
New York
$7.84M +$546K +3,098 +9%
Bank of America
20
Bank of America
North Carolina
$7.58M +$6.2M +35,185 +4,194%
UBS Group
21
UBS Group
Switzerland
$7.29M +$5.42M +30,717 +786%
OM
22
Opaleye Management
Massachusetts
$7.17M -$1.81M -10,250 -23%
Two Sigma Investments
23
Two Sigma Investments
New York
$6.02M +$1.2M +6,777 +31%
Citadel Advisors
24
Citadel Advisors
Florida
$6.01M +$3.34M +18,958 +198%
Alyeska Investment Group
25
Alyeska Investment Group
Illinois
$5.02M -$5.62M -31,875 -57%