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Rhythm Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
RCM
1
RA Capital Management
Massachusetts
$740M
BlackRock
2
BlackRock
New York
$684M -$7.26M -80,249 -1%
BBA
3
Baker Bros. Advisors
New York
$622M
Primecap Management
4
Primecap Management
California
$352M -$22.5M -248,656 -7%
Vanguard Portfolio Management
5
Vanguard Portfolio Management
Pennsylvania
$348M +$8.7M +96,177 +3%
Vanguard Capital Management
6
Vanguard Capital Management
Pennsylvania
$334M +$3.45M +38,152 +1%
JP Morgan Chase
7
JP Morgan Chase
New York
$292M +$99.4M +1,099,102 +71%
PA
8
Perceptive Advisors
New York
$287M +$19.2M +212,500 +9%
State Street
9
State Street
Massachusetts
$286M +$27.3M +301,678 +13%
T. Rowe Price Associates
10
T. Rowe Price Associates
Maryland
$285M +$82.4M +911,295 +55%
Westfield Capital Management
11
Westfield Capital Management
Massachusetts
$245M +$25.3M +279,472 +14%
Goldman Sachs
12
Goldman Sachs
New York
$236M +$14.6M +161,070 +8%
Federated Hermes
13
Federated Hermes
Pennsylvania
$198M +$45.2M +499,413 +39%
PCH
14
Polar Capital Holdings
United Kingdom
$185M +$4.34M +48,046 +3%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$170M +$10.6M +117,429 +8%
Capital Research Global Investors
16
Capital Research Global Investors
California
$170M +$37.7M +416,843 +37%
Citadel Advisors
17
Citadel Advisors
Florida
$140M -$14M -154,967 -11%
CC
18
Checkpoint Capital
California
$132M -$3.73M -41,200 -3%
SL
19
Siren LLC
Connecticut
$126M +$37.1M +410,764 +57%
Morgan Stanley
20
Morgan Stanley
New York
$123M +$36.9M +408,262 +58%
Fidelity Investments
21
Fidelity Investments
Massachusetts
$114M -$60M -663,831 -39%
Pictet Asset Management
22
Pictet Asset Management
Switzerland
$106M +$26.3M +290,739 +44%
JT
23
Jupiter Topco
New York
$103M +$83.7M +925,490 New
WP
24
Woodline Partners
California
$84.3M
AllianceBernstein
25
AllianceBernstein
Tennessee
$77.8M -$1.42M -15,690 -2%