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Rhythm Pharmaceuticals
RYTM

Overview Fund Activity

124 hedge funds and large institutions have $1.01B invested in Rhythm Pharmaceuticals in 2021 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 59 increasing their positions, 25 reducing their positions, and 19 closing their positions.

Holders
124
Holders Change
+5
Holders Change %
+4.2%
% of All Funds
2.18%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
25
Increased
59
Reduced
25
Closed
19
Calls
$1.05M
Puts
$1.39M
Net Calls
-$341K
Net Calls Change
+$2.15M

Top Buyers

1
Primecap Management
1
Primecap Management
California
$128M
2
BBA
2
Baker Bros. Advisors
New York
$74M
3
State Street
3
State Street
Massachusetts
$51.9M
4
GGHC
4
Gilder Gagnon Howe & Co
New York
$32.4M
5
RCM
5
RA Capital Management
Massachusetts
$104M

Top Sellers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$21.6M
2
MAM
2
MPM Asset Management
Massachusetts
$19.3M
3
DM
3
Deerfield Management
New York
$42.3M
4
Janus Henderson Group
4
Janus Henderson Group
United Kingdom
$87M
5
OM
5
Opaleye Management
Massachusetts
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Primecap Management
1
Primecap Management
California
$128M 6,005,593 +1,663,102 +38%
NMC
2
NEA Management Company
Maryland
$104M 4,912,306 – –
RCM
3
RA Capital Management
Massachusetts
$104M 4,871,067 +692,000 +17%
Janus Henderson Group
4
Janus Henderson Group
United Kingdom
$87M 4,088,023 -403,742 -9%
BBA
5
Baker Bros. Advisors
New York
$74M 3,479,873 +1,165,000 +50%
BlackRock
6
BlackRock
New York
$66.9M 3,145,360 +414,254 +15%
Federated Hermes
7
Federated Hermes
Pennsylvania
$66.2M 3,110,853 +493,253 +19%
State Street
8
State Street
Massachusetts
$51.9M 2,441,380 +1,162,261 +91%
Vanguard Group
9
Vanguard Group
Pennsylvania
$47.9M 2,252,395 +366,871 +19%
DM
10
Deerfield Management
New York
$42.3M 1,989,625 -731,578 -27%
GGHC
11
Gilder Gagnon Howe & Co
New York
$32.4M 1,523,234 +1,137,702 +295%
Wellington Management Group
12
Wellington Management Group
Massachusetts
$21.6M 1,015,302 -1,085,925 -52%
MAM
13
MPM Asset Management
Massachusetts
$19.3M 909,258 -1,000,000 -52%
Goldman Sachs
14
Goldman Sachs
New York
$14M 659,154 +606,742 +1,158%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$13.3M 623,562 +135,115 +28%
CCM
16
CAAS Capital Management
New York
$13.1M 617,595 +617,595 New
RSCM
17
Rock Springs Capital Management
Maryland
$12.7M 599,280 +108,941 +22%
Northern Trust
18
Northern Trust
Illinois
$9.25M 434,960 +16,038 +4%
Dimensional Fund Advisors
19
Dimensional Fund Advisors
Texas
$6.57M 308,573 -31,084 -9%
Two Sigma Investments
20
Two Sigma Investments
New York
$6.27M 294,660 +270,979 +1,144%
Charles Schwab
21
Charles Schwab
California
$5.37M 252,222 +43,349 +21%
ACM
22
Altium Capital Management
New York
$4.74M 223,000 +223,000 New
SB
23
Samsara BioCapital
California
$4.28M 201,046 – –
Marshall Wace
24
Marshall Wace
United Kingdom
$3.8M 178,757 +159,599 +833%
Millennium Management
25
Millennium Management
New York
$3.63M 170,527 +170,527 New
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