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Rhythm Pharmaceuticals

126 hedge funds and large institutions have $1.08B invested in Rhythm Pharmaceuticals in 2023 Q1 according to their latest regulatory filings, with 29 funds opening new positions, 46 increasing their positions, 24 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

298% more call options, than puts

Call options by funds: $12.9M | Put options by funds: $3.25M

92% more repeat investments, than reductions

Existing positions increased: 46 | Existing positions reduced: 24

61% more first-time investments, than exits

New positions opened: 29 | Existing positions closed: 18

10% more funds holding

Funds holding: 115126 (+11)

4.27% less ownership

Funds ownership: 110.59%106.32% (-4.3%)

20% less funds holding in top 10

Funds holding in top 10: 54 (-1)

41% less capital invested

Capital invested by funds: $1.81B → $1.08B (-$734M)

Holders
126
Holders Change
+11
Holders Change %
+9.57%
% of All Funds
2.01%
Holding in Top 10
4
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-20%
% of All Funds
0.06%
New
29
Increased
46
Reduced
24
Closed
18
Calls
$12.9M
Puts
$3.25M
Net Calls
+$9.7M
Net Calls Change
+$7.04M
Name Holding Trade Value Shares
Change
Change in
Stake
Primecap Management
1
Primecap Management
California
$136M +$17.5M +696,169 +10%
BBA
2
Baker Bros. Advisors
New York
$116M +$3.61M +143,659 +2%
RCM
3
RA Capital Management
Massachusetts
$98.4M
Goldman Sachs
4
Goldman Sachs
New York
$94.7M +$2.74M +108,911 +2%
Federated Hermes
5
Federated Hermes
Pennsylvania
$69.4M -$60.6M -2,412,799 -38%
BlackRock
6
BlackRock
New York
$67.4M +$1.43M +56,885 +2%
NMC
7
NEA Management Company
Maryland
$51.9M -$50.2M -2,000,000 -41%
Vanguard Group
8
Vanguard Group
Pennsylvania
$47.2M +$1.3M +51,822 +2%
State Street
9
State Street
Massachusetts
$46.6M -$14.3M -568,510 -18%
FLSM
10
Frazier Life Sciences Management
California
$38.6M +$6.8M +270,739 +14%
Alkeon Capital Management
11
Alkeon Capital Management
New York
$36M -$5.58M -222,296 -10%
PCH
12
Polar Capital Holdings
United Kingdom
$31.2M +$12.6M +500,000 +40%
RSCM
13
Rock Springs Capital Management
Maryland
$28.5M -$4.11M -163,742 -9%
Janus Henderson Group
14
Janus Henderson Group
United Kingdom
$19.6M -$3.58M -142,580 -11%
Susquehanna International Group
15
Susquehanna International Group
Pennsylvania
$14M +$2.27M +90,513 +13%
OM
16
Opaleye Management
Massachusetts
$13.1M
Fidelity Investments
17
Fidelity Investments
Massachusetts
$12.5M -$1.86M -74,204 -10%
Assenagon Asset Management
18
Assenagon Asset Management
Luxembourg
$11.8M +$5.04M +200,510 +43%
Millennium Management
19
Millennium Management
New York
$9.76M +$12.7M +504,608 +1,193%
Geode Capital Management
20
Geode Capital Management
Massachusetts
$8.43M +$358K +14,251 +3%
Citadel Advisors
21
Citadel Advisors
Florida
$6.51M +$7.39M +294,342 +416%
Bank of America
22
Bank of America
North Carolina
$6.42M +$2.35M +93,513 +35%
Jane Street
23
Jane Street
New York
$6.24M +$3.77M +150,136 +75%
SB
24
Samsara BioCapital
California
$6.16M
Citigroup
25
Citigroup
New York
$6.06M +$1.62M +64,394 +23%

RYTM Hedge Fund Activity: Q1 2023 in Review

126 of the 6,275 institutional investors tracked by Wall St. Rank reported a position in Rhythm Pharmaceuticals (RYTM) for Q1 2023, worth a combined $1.08B — down 41% from $1.81B a quarter earlier.

Buyers outnumbered sellers: 29 funds opened new RYTM positions and 18 closed out — a net gain of 11 holders — while 46 added to existing stakes and 24 trimmed.

The largest buyer was Primecap Management, adding an estimated $17.5M. The largest seller was Federated Hermes, cutting an estimated $60.6M.

  • 126 institutional investors held Rhythm Pharmaceuticals (RYTM) as of Q1 2023, up from 115 in Q4 2022.
  • Funds reported $1.08B of Rhythm Pharmaceuticals stock for Q1 2023, down 41% quarter-over-quarter.
  • 29 funds opened new Rhythm Pharmaceuticals positions in Q1 2023 and 18 closed out, a net change of +11 holders.
  • The largest Rhythm Pharmaceuticals buyer in Q1 2023 was Primecap Management, an estimated $17.5M added.
  • The largest Rhythm Pharmaceuticals seller in Q1 2023 was Federated Hermes, an estimated $60.6M sold.

Based on aggregated 13F filings for Q1 2023.