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Rhythm Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$363M -$5.32M -95,960 -1%
RCM
2
RA Capital Management
Massachusetts
$322M
Primecap Management
3
Primecap Management
California
$307M -$43.5M -783,868 -12%
BBA
4
Baker Bros. Advisors
New York
$297M -$26.6M -479,766 -8%
Vanguard Group
5
Vanguard Group
Pennsylvania
$182M +$129K +2,326 +0.1%
NMC
6
NEA Management Company
Maryland
$154M
PA
7
Perceptive Advisors
New York
$135M -$62.8M -1,132,028 -31%
State Street
8
State Street
Massachusetts
$104M +$7.2M +129,863 +7%
Janus Henderson Group
9
Janus Henderson Group
$90.7M +$24.2M +435,796 +36%
Fidelity Investments
10
Fidelity Investments
Massachusetts
$89.4M +$87.4M +1,575,266 +1,393%
Goldman Sachs
11
Goldman Sachs
New York
$86.8M -$9.67M -174,298 -10%
Federated Hermes
12
Federated Hermes
Pennsylvania
$84.3M +$2.34M +42,236 +3%
DCM
13
Driehaus Capital Management
Illinois
$77.2M +$9.27M +167,047 +13%
Westfield Capital Management
14
Westfield Capital Management
Massachusetts
$71M +$74.4M +1,341,092 New
Geode Capital Management
15
Geode Capital Management
Massachusetts
$68.2M +$1.74M +31,369 +2%
T. Rowe Price Associates
16
T. Rowe Price Associates
Maryland
$63.5M +$28.5M +513,901 +75%
CC
17
Checkpoint Capital
California
$48.1M +$9.95M +179,258 +25%
RSCM
18
Rock Springs Capital Management
Maryland
$44.2M -$18.2M -328,530 -28%
Alkeon Capital Management
19
Alkeon Capital Management
New York
$43.3M -$19.4M -350,000 -30%
FLSM
20
Frazier Life Sciences Management
California
$36M -$66.1M -1,191,048 -64%
HRCM
21
Hood River Capital Management
Florida
$34.9M +$873K +15,740 +2%
Loomis, Sayles & Company
22
Loomis, Sayles & Company
Massachusetts
$32.1M -$706K -12,721 -2%
Northern Trust
23
Northern Trust
Illinois
$28.4M -$505K -9,108 -2%
Marshall Wace
24
Marshall Wace
United Kingdom
$28.3M -$8.75M -157,700 -23%
Morgan Stanley
25
Morgan Stanley
New York
$26.7M -$3.11M -56,038 -10%