Rhythm PharmaceuticalsRYTM
13F holders, Q3 2024 (September 30)176holders +11
28new positions
19sold out
5famous investors
$52.38avg. 13F price*
At the end of Q3 2024, 176 institutions reported holding Rhythm Pharmaceuticals Inc. (RYTM) in their 13F filings, up 11 from Q2 2024. 28 opened new positions and 19 sold out. The largest holders were Primecap Management Co. ($378.1M), BlackRock, Inc. ($360.9M) and Baker Bros. Advisors LP ($335.2M). 5 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Joel Greenblatt (0.0% of Gotham Asset Management's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Rhythm Pharmaceuticals Inc.
- CUSIP
- 76243J105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 28 | $104.2M |
| Exits | 19 | $23.0M |
All 13F filers, Q2 2024 → Q3 2024: 3,754,798 shares bought and 5,504,039 shares sold, net −1,749,241 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 176 holders
| Primecap Management Co. | 0.28% | Reduce -1.3% | 7,216,911 | $378.1M |
| BlackRock, Inc. | 0.01% | — | 6,889,258 | $360.9M |
| Baker Bros. Advisors LP | 3.51% | Add +0.0% | 6,398,366 | $335.2M |
| Ra Capital Management, L.P. | 3.68% | No change | 6,084,412 | $318.8M |
| Goldman Sachs Group Inc. | 0.04% | Reduce -26.6% | 3,879,796 | $203.3M |
| Perceptive Advisors LLC | 4.00% | Add +3.3% | 3,560,214 | $186.5M |
| Vanguard Group Inc. | 0.00% | Add +2.6% | 3,447,911 | $180.6M |
| NEA Management Company, LLC | 8.31% | No change | 2,909,956 | $152.5M |
| Frazier Life Sciences Management, L.P. | 5.08% | Add +1.9% | 2,416,952 | $126.6M |
| State Street Corp. | 0.00% | Reduce -0.5% | 1,993,166 | $104.4M |
| Federated Hermes, Inc. | 0.19% | Add +0.2% | 1,663,900 | $87.2M |
| Polar Capital Holdings Plc | 0.38% | No change | 1,500,000 | $78.6M |
| Driehaus Capital Management LLC | 0.58% | Add +9.9% | 1,299,490 | $68.1M |
| Geode Capital Management, LLC | 0.01% | Add +0.3% | 1,256,188 | $65.8M |
| Rock Springs Capital Management LP | 2.10% | Reduce -4.1% | 1,228,093 | $64.3M |
| Alkeon Capital Management LLC | 0.34% | Add +16.8% | 1,167,700 | $61.2M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.14% | Add +14.9% | 1,111,043 | $58.2M |
| Checkpoint Capital L.P. | 17.24% | Reduce -28.1% | 663,381 | $34.8M |
| Commodore Capital LP | 2.13% | Reduce -46.9% | 650,000 | $34.1M |
| Loomis Sayles & Co. L P | 0.04% | New | 636,628 | $33.4M |
| Hood River Capital Management LLC | 0.52% | New | 614,598 | $32.2M |
| Janus Henderson Group PLC | 0.02% | Add +0.8% | 598,122 | $31.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +4.7% | 550,530 | $28.8M |
| Opaleye Management Inc. | 4.43% | Reduce -2.9% | 500,000 | $26.2M |
| Northern Trust Corp. | 0.00% | Reduce -0.2% | 498,466 | $26.1M |
| Morgan Stanley | 0.00% | Reduce -2.3% | 464,604 | $24.3M |
| Orbimed Advisors LLC | 0.42% | Reduce -38.2% | 435,900 | $22.8M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +1.4% | 433,866 | $22.7M |
| Marshall Wace, LLP | 0.03% | Add +280.7% | 406,615 | $21.3M |
| Cormorant Asset Management, LP | 1.11% | Reduce -15.8% | 400,000 | $21.0M |
| Candriam S.C.A. | 0.12% | Add +45.7% | 395,377 | $20.7M |
| Voloridge Investment Management, LLC | 0.07% | Reduce -23.6% | 353,323 | $18.5M |
| National Bank of Canada | 0.02% | Reduce -15.5% | 341,507 | $17.9M |
| Pictet Asset Management Holding SA | 0.02% | Reduce -58.9% | 329,339 | $17.3M |
| Sofinnova Investments, Inc. | 1.20% | New | 276,678 | $14.5M |
| Invesco Ltd. | 0.00% | Reduce -4.4% | 264,417 | $13.9M |
| Silverarc Capital Management, LLC | 3.02% | Add +38.4% | 255,578 | $13.4M |
| Franklin Resources Inc. | 0.00% | Add +11.5% | 259,416 | $13.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -4.7% | 225,373 | $11.8M |
| Samsara Biocapital, LLC | 1.74% | No change | 172,647 | $9.0M |
| Bank of New York Mellon Corp | 0.00% | Reduce -22.4% | 148,926 | $7.8M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -0.8% | 147,875 | $7.7M |
| Woodline Partners LP | 0.06% | Add +225.1% | 143,823 | $7.5M |
| Great Lakes Advisors, LLC | 0.06% | New | 136,950 | $7.2M |
| Aberdeen Group plc | 0.01% | No change | 112,804 | $5.9M |
| Jane Street Group, LLC | 0.01% | Reduce -25.5% | 109,186 | $5.7M |
| Barclays PLC | 0.00% | Add +98.4% | 106,397 | $5.6M |
| Bank of America Corp. | 0.00% | Add +15.4% | 106,250 | $5.6M |
| Voya Investment Management LLC | 0.01% | Add +172.0% | 102,832 | $5.4M |
| Citadel Advisors | 0.01% | New | 102,778 | $5.4M |
| Lord, Abbett & Co. LLC | 0.02% | Add +0.1% | 102,646 | $5.4M |
| Hennion & Walsh Asset Management, Inc. | 0.25% | Add +4.8% | 100,961 | $5.3M |
| Swiss National Bank | 0.00% | Add +0.7% | 89,300 | $4.7M |
| Clearbridge Investments, LLC | 0.00% | Reduce -0.8% | 87,424 | $4.6M |
| JPMorgan Chase & Co. | 0.00% | Reduce -41.8% | 81,592 | $4.3M |
| Rhumbline Advisers | 0.00% | Reduce -2.8% | 80,714 | $4.2M |
| Ghost Tree Capital, LLC | 1.41% | Reduce -32.8% | 78,842 | $4.1M |
| UBS Group AG | 0.00% | Add +16.2% | 76,634 | $4.0M |
| First Trust Advisors LP | 0.00% | Reduce -22.3% | 70,762 | $3.7M |
| Canada Pension Plan Investment Board | 0.00% | Reduce -83.9% | 67,000 | $3.5M |
| Norges Bank | 0.00% | Add +53.3% | 66,276 | $3.5M |
| Nisa Investment Advisors, LLC | 0.02% | Reduce -82.3% | 66,240 | $3.5M |
| Rafferty Asset Management, LLC | 0.01% | Reduce -11.0% | 64,576 | $3.4M |
| Alliancebernstein L.P. | 0.00% | Reduce -2.5% | 59,570 | $3.1M |
| JGP Global Gestao de Recursos Ltda. | 5.78% | Add +869.7% | 56,378 | $3.0M |
| Algert Global LLC | 0.08% | Reduce -48.0% | 54,171 | $2.8M |
| Legal & General Group Plc | 0.00% | Add +2.2% | 50,852 | $2.7M |
| FMR LLC | 0.00% | Add +79.7% | 50,295 | $2.6M |
| Nan Fung Group Holdings Ltd | 2.22% | No change | 49,120 | $2.6M |
| Wedge Capital Management L L P | 0.04% | Reduce -22.7% | 48,844 | $2.6M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -1.2% | 48,703 | $2.6M |
| California State Teachers Retirement System | 0.00% | Reduce -1.9% | 43,916 | $2.3M |
| Ameriprise Financial Inc. | 0.00% | Add +3.6% | 41,887 | $2.2M |
| Harbor Capital Advisors, Inc. | 0.09% | Add +19.5% | 41,368 | $2.2M |
| Stempoint Capital LP | 0.65% | New | 41,268 | $2.2M |
| Citigroup Inc. | 0.00% | Add +106.1% | 41,197 | $2.2M |
| HighVista Strategies LLC | 0.68% | Add +160.6% | 37,426 | $2.0M |
| Millennium Management | 0.00% | New | 36,977 | $1.9M |
| Deutsche Bank AG | 0.00% | Add +27.6% | 33,264 | $1.7M |
| AQR Capital Management | 0.00% | Reduce -68.4% | 32,809 | $1.7M |
| Principal Financial Group Inc. | 0.00% | Add +241.9% | 32,586 | $1.7M |
| State of Wisconsin Investment Board | 0.00% | Reduce -17.7% | 32,453 | $1.7M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +7.0% | 32,502 | $1.7M |
| MetLife Investment Management, LLC | 0.01% | No change | 31,652 | $1.7M |
| TD Asset Management Inc | 0.00% | Add +2.6% | 31,800 | $1.6M |
| Schonfeld Strategic Advisors LLC | 0.01% | Add +179.6% | 30,535 | $1.6M |
| Wells Fargo & Company | 0.00% | Reduce -0.2% | 29,474 | $1.5M |
| Corebridge Financial, Inc. | 0.01% | Reduce -0.6% | 29,274 | $1.5M |
| Sei Investments Co. | 0.00% | Add +293.8% | 29,021 | $1.5M |
| Wellington Management Group LLP | 0.00% | Reduce -86.3% | 27,716 | $1.5M |
| Penserra Capital Management LLC | 0.03% | New | 25,063 | $1.3M |
| Susquehanna International Group, LLP | 0.00% | Reduce -11.0% | 21,481 | $1.1M |
| Assenagon Asset Management S.A. | 0.00% | Reduce -91.3% | 20,052 | $1.1M |
| Fiduciary Trust Co | 0.01% | No change | 20,000 | $1.0M |
| Stifel Financial Corp. | 0.00% | Reduce -29.3% | 19,842 | $1.0M |
| Handelsbanken Fonder AB | 0.00% | Add +21.4% | 19,321 | $1.0M |
| Castleark Management LLC | 0.04% | Add +1.3% | 19,260 | $1.0M |
| Crestline Management, L.P. | 0.06% | New | 18,998 | $995K |
| Victory Capital Management Inc. | 0.00% | Add +158.0% | 18,186 | $953K |
| Jefferies Financial Group Inc. | 0.02% | New | 18,000 | $943K |
"% of holder's portfolio" is RYTM's weight in each manager's 13F, not the share of Rhythm Pharmaceuticals Inc. the manager owns.