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Rhythm Pharmaceuticals

Name Holding Trade Value Shares
Change
Change in
Stake
BlackRock
1
BlackRock
New York
$396M -$36M -587,217 -9%
BBA
2
Baker Bros. Advisors
New York
$354M
RCM
3
RA Capital Management
Massachusetts
$351M -$32M -523,053 -9%
Primecap Management
4
Primecap Management
California
$308M -$55.7M -909,285 -16%
Vanguard Group
5
Vanguard Group
Pennsylvania
$227M +$8.83M +144,188 +4%
NMC
6
NEA Management Company
Maryland
$184M
PA
7
Perceptive Advisors
New York
$153M -$7.97M -130,146 -5%
Fidelity Investments
8
Fidelity Investments
Massachusetts
$123M +$16.2M +265,066 +16%
State Street
9
State Street
Massachusetts
$121M -$3.87M -63,132 -3%
Goldman Sachs
10
Goldman Sachs
New York
$110M +$5.87M +95,814 +6%
Federated Hermes
11
Federated Hermes
Pennsylvania
$107M +$5.79M +94,623 +6%
Westfield Capital Management
12
Westfield Capital Management
Massachusetts
$103M +$17.7M +288,376 +22%
Janus Henderson Group
13
Janus Henderson Group
$89.3M -$14.9M -243,448 -15%
T. Rowe Price Associates
14
T. Rowe Price Associates
Maryland
$84.8M +$8.72M +142,339 +12%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$82.9M +$1.47M +24,085 +2%
DCM
16
Driehaus Capital Management
Illinois
$80.2M -$11.5M -188,070 -13%
PCH
17
Polar Capital Holdings
United Kingdom
$79M +$46M +750,870 +150%
CC
18
Checkpoint Capital
California
$67M +$9.35M +152,760 +17%
Alkeon Capital Management
19
Alkeon Capital Management
New York
$64.3M +$12.2M +200,000 +24%
RSCM
20
Rock Springs Capital Management
Maryland
$54.4M +$1.65M +26,965 +3%
JP Morgan Chase
21
JP Morgan Chase
New York
$49.5M +$39.2M +639,919 +446%
Loomis, Sayles & Company
22
Loomis, Sayles & Company
Massachusetts
$37.4M -$876K -14,310 -2%
SI
23
Sofinnova Investments
California
$37M +$8.52M +139,171 +31%
Franklin Resources
24
Franklin Resources
California
$34.4M +$13.3M +217,642 +67%
HRCM
25
Hood River Capital Management
Florida
$34.4M -$7.09M -115,743 -18%