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, Q3 2022
Institutional positions in Rhythm Pharmaceuticals, Inc. as of Sep 30, 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
- 101
- +13 vs. Q2 2022
- Shares held
- 59.5M
- +13.5M (+29.5%) vs. Q2 2022
- Total value
- $1.45B
- +$1.25B (+657.6%) vs. Q2 2022
- New holders
- 35
- 36 more added
- Sold out
- 22
- 19 more reduced
2 institutions that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2022: 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, Q3 2022
Shares, value and share of portfolio for each institution holding Rhythm Pharmaceuticals, Inc.; share changes are against Q2 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Primecap Management Co | 7,026,892 | $172.2M | 0.17% | +662,798+10.4% | Added |
| Franklin Resources Inc | 0 | $0 | 0.00% | −1,779,465−100.0% | Sold out |
| MPM Asset Management LLC | 0 | $0 | 0.00% | −909,258−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −489,121−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −378,714−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −291,005−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −212,800−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −151,213−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −80,064−100.0% | Sold out |
| Bell & Brown Wealth Advisors, LLC | 0 | $0 | 0.00% | −70,400−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −57,218−100.0% | Sold out |
| Chicago Partners Investment Group LLC | 0 | $0 | 0.00% | −12,821−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −36,663−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −29,500−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −28,794−100.0% | Sold out |
| ACT Capital Management, LLC | 0 | $0 | 0.00% | −27,500−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −25,890−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −22,666−100.0% | Sold out |
| Laurion Capital Management LP | 0 | $0 | 0.00% | −16,322−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −11,225−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −10,295−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −2,300−100.0% | Sold out |
| FourThought Financial, LLC | 0 | $0 | 0.00% | −1,776−100.0% | Sold out |
| Private Capital Group, LLC | – | – | – | – | Not filed |
| Exane Derivatives | – | – | – | – | Not filed |