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; 305 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, Q2 2021
Institutional positions in Rhythm Pharmaceuticals, Inc. as of Jun 30, 2021. 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
- 105
- −19 vs. Q1 2021
- Shares held
- 47.5M
- −91.7K (−0.2%) vs. Q1 2021
- Total value
- $905.6M
- −$106.4M (−10.5%) vs. Q1 2021
- New holders
- 7
- 42 more added
- Sold out
- 26
- 33 more reduced
Compare with Q1 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 | 305 | $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, Q2 2021
Shares, value and share of portfolio for each institution holding Rhythm Pharmaceuticals, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 4,871,067 | $71.1M | 1.14% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 3,863,239 | $75.6M | 0.33% | +383,366+11.0% | Added |
| Janus Henderson Group PLC | 3,926,050 | $76.9M | 0.03% | −161,973−4.0% | Reduced |
| NEA Management Company, LLC | 4,912,306 | $96.2M | 1.25% | 00.0% | Unchanged |
| Primecap Management Co | 6,153,691 | $120.5M | 0.08% | +148,098+2.5% | Added |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −178,757−100.0% | Sold out |
| Marshall Wace North America L.P. | 0 | $0 | 0.00% | −169,156−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −73,957−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −68,400−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −66,852−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −47,800−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −32,710−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −31,653−100.0% | Sold out |
| HighVista Strategies LLC | 0 | $0 | 0.00% | −24,809−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −24,053−100.0% | Sold out |
| PRW Wealth Management LLC | 0 | $0 | 0.00% | −14,200−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −12,725−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −11,770−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −11,535−100.0% | Sold out |
| Arizona State Retirement System | 0 | $0 | 0.00% | −10,027−100.0% | Sold out |
| 1623 Capital LLC | 0 | $0 | 0.00% | −5,756−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −2,845−100.0% | Sold out |
| HM Payson & Co | 0 | $0 | 0.00% | −1,701−100.0% | Sold out |
| Spire Wealth Management | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Eudaimonia Partners, LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −402−100.0% | Sold out |
| Valeo Financial Advisors, LLC | 0 | $0 | 0.00% | −229−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −145−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −47−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |