Rhythm Pharmaceuticals, Inc.
RYTM- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001649904
In the last 90 days, Rhythm Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 6 sales; 304 institutions reported holding it in 13F filings for Q2 2026, worth $8.55B in total; Duquesne Family Office is the only superinvestor holding it.
13F holders, Q1 2022
Institutional positions in Rhythm Pharmaceuticals, Inc. as of Mar 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 111
- +13 vs. Q4 2021
- Shares held
- 48.9M
- +401.3K (+0.8%) vs. Q4 2021
- Total value
- $562.7M
- +$79.1M (+16.4%) vs. Q4 2021
- New holders
- 22
- 32 more added
- Sold out
- 9
- 37 more reduced
Compare with Q4 2021: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting RYTM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 304 | $8.55B |
| Q1 2026 | 285 | $6.42B |
| Q4 2025 | 281 | $7.80B |
| Q3 2025 | 264 | $7.20B |
| Q2 2025 | 227 | $4.20B |
| Q1 2025 | 228 | $3.44B |
| Q4 2024 | 203 | $3.63B |
| Q3 2024 | 176 | $3.55B |
| Q2 2024 | 165 | $2.85B |
| Q1 2024 | 167 | $2.95B |
| Q4 2023 | 169 | $3.07B |
| Q3 2023 | 144 | $1.56B |
| Q2 2023 | 116 | $1.09B |
| Q1 2023 | 126 | $1.08B |
| Q4 2022 | 115 | $1.81B |
| Q3 2022 | 101 | $1.45B |
| Q2 2022 | 90 | $190.8M |
| Q1 2022 | 111 | $562.7M |
| Q4 2021 | 98 | $483.6M |
| Q3 2021 | 97 | $626.3M |
| Q2 2021 | 105 | $905.6M |
| Q1 2021 | 124 | $1.01B |
Institutions, Q1 2022
Shares, value and share of portfolio for each institution holding Rhythm Pharmaceuticals, Inc.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rock Springs Capital Management LP | 1,237,026 | $14.3M | 0.36% | +609,846+97.2% | Added |
| Franklin Resources Inc | 1,779,454 | $20.5M | 0.01% | +242,582+15.8% | Added |
| Vanguard Group Inc | 2,257,020 | $26.0M | 0.00% | −66,501−2.9% | Reduced |
| Janus Henderson Group PLC | 2,951,002 | $34.0M | 0.02% | −182,933−5.8% | Reduced |
| BlackRock Inc. | 3,284,105 | $37.8M | 0.00% | −43,956−1.3% | Reduced |
| Goldman Sachs Group Inc | 3,339,750 | $38.5M | 0.01% | +243,202+7.9% | Added |
| Baker Bros. Advisors LP | 4,125,062 | $47.5M | 0.27% | +261,823+6.8% | Added |
| Ra Capital Management, L.P. | 4,871,067 | $56.1M | 1.22% | 00.0% | Unchanged |
| NEA Management Company, LLC | 4,912,306 | $56.6M | 1.83% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 5,065,113 | $58.4M | 0.13% | +2,261,778+80.7% | Added |
| Primecap Management Co | 6,291,991 | $72.5M | 0.05% | +35,000+0.6% | Added |
| Rafferty Asset Management, LLC | 0 | $0 | 0.00% | −111,594−100.0% | Sold out |
| Norges Bank | 0 | $0 | 0.00% | −51,161−100.0% | Sold out |
| Prudential Financial Inc | 0 | $0 | 0.00% | −46,400−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −20,633−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −15,475−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −14,661−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −241−100.0% | Sold out |
| Ellevest, Inc. | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −50−100.0% | Sold out |