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Rhythm Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
RCM
1
RA Capital Management
Massachusetts
$580M
BlackRock
2
BlackRock
New York
$542M -$5.85M -60,183 -1%
BBA
3
Baker Bros. Advisors
New York
$487M
Primecap Management
4
Primecap Management
California
$297M -$5.95M -61,160 -2%
Vanguard Portfolio Management
5
Vanguard Portfolio Management
Pennsylvania
$264M +$296M +3,040,718 New
Vanguard Capital Management
6
Vanguard Capital Management
Pennsylvania
$258M +$289M +2,967,825 New
PA
7
Perceptive Advisors
New York
$206M -$16.8M -172,596 -7%
State Street
8
State Street
Massachusetts
$198M +$7.12M +73,236 +3%
Goldman Sachs
9
Goldman Sachs
New York
$171M +$13.1M +134,566 +7%
Westfield Capital Management
10
Westfield Capital Management
Massachusetts
$168M +$64.4M +661,965 +52%
Fidelity Investments
11
Fidelity Investments
Massachusetts
$147M -$1.62M -16,646 -1%
T. Rowe Price Associates
12
T. Rowe Price Associates
Maryland
$144M +$9.14M +94,029 +6%
PCH
13
Polar Capital Holdings
United Kingdom
$141M +$41.8M +430,194 +36%
Citadel Advisors
14
Citadel Advisors
Florida
$123M +$123M +1,265,297 +825%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$123M +$3.94M +40,540 +3%
JP Morgan Chase
16
JP Morgan Chase
New York
$120M +$12.6M +129,655 +9%
Federated Hermes
17
Federated Hermes
Pennsylvania
$112M -$32.8M -337,538 -21%
CC
18
Checkpoint Capital
California
$107M +$22.9M +235,000 +24%
AllianceBernstein
19
AllianceBernstein
Tennessee
$97.5M -$1.93M -19,820 -2%
Capital Research Global Investors
20
Capital Research Global Investors
California
$97M +$12.7M +130,374 +13%
Janus Henderson Group
21
Janus Henderson Group
$79.9M -$20.2M -207,972 -18%
Point72 Asset Management
22
Point72 Asset Management
Connecticut
$73.6M +$40.6M +417,381 +97%
WP
23
Woodline Partners
California
$66M +$6.82M +70,112 +10%
Adage Capital Partners
24
Adage Capital Partners
Massachusetts
$63.1M +$10.1M +104,159 +17%
SL
25
Siren LLC
Connecticut
$63.1M +$21.9M +225,536 +45%