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Alector

Name Holding Trade Value Shares
Change
Change in
Stake
O
1
OrbiMed
New York
$201M -$67.8M -2,660,253 -24%
Federated Hermes
2
Federated Hermes
Pennsylvania
$107M +$15.6M +613,397 +16%
Vanguard Group
3
Vanguard Group
Pennsylvania
$104M +$41.3M +1,620,807 +60%
BlackRock
4
BlackRock
New York
$101M +$32.6M +1,279,868 +44%
RCM
5
RA Capital Management
Massachusetts
$99.6M +$79.7M +3,127,348 +313%
Fidelity Investments
6
Fidelity Investments
Massachusetts
$86.8M +$31.6M +1,241,417 +53%
GGHC
7
Gilder Gagnon Howe & Co
New York
$65.8M +$69.5M +2,726,389 New
DM
8
Deerfield Management
New York
$42M -$8.61M -337,815 -16%
JP Morgan Chase
9
JP Morgan Chase
New York
$38.1M +$29.9M +1,171,152 +288%
State Street
10
State Street
Massachusetts
$27.4M +$2.37M +93,046 +9%
CC
11
Casdin Capital
New York
$26M
T. Rowe Price Associates
12
T. Rowe Price Associates
Maryland
$22.4M +$23.7M +929,364 New
APM
13
Avidity Partners Management
Texas
$17.2M +$18.2M +714,000 New
NLVP
14
New Leaf Venture Partners
New York
$15.4M
Geode Capital Management
15
Geode Capital Management
Massachusetts
$13.3M +$3.71M +145,668 +36%
Goldman Sachs
16
Goldman Sachs
New York
$12.4M +$1.23M +48,061 +10%
PA
17
Perceptive Advisors
New York
$12.3M
BAMCO Inc
18
BAMCO Inc
New York
$11.2M -$214K -8,400 -2%
Northern Trust
19
Northern Trust
Illinois
$10.9M +$1.58M +61,975 +16%
Adage Capital Partners
20
Adage Capital Partners
Massachusetts
$9.65M +$5.74M +225,000 +129%
Holocene Advisors
21
Holocene Advisors
New York
$9.61M +$10.2M +398,372 New
PAMU
22
Pictet Asset Management (UK)
United Kingdom
$8.63M -$7.73M -303,159 -46%
MWNA
23
Marshall Wace North America
New York
$7.95M -$9.32M -365,600 -53%
Bank of New York Mellon
24
Bank of New York Mellon
New York
$7.89M +$5.61M +220,056 +206%
Franklin Resources
25
Franklin Resources
California
$7.74M -$12.1M -473,620 -60%