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 $8.57B 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 | 304 | $8.57B |
| Q1 2026 | 285 | $6.42B |
| Q4 2025 | 281 | $7.80B |
| Q3 2025 | 264 | $7.32B |
| Q2 2025 | 227 | $4.22B |
| Q1 2025 | 228 | $3.44B |
| Q4 2024 | 203 | $3.63B |
| Q3 2024 | 176 | $3.55B |
| Q2 2024 | 165 | $2.86B |
| Q1 2024 | 167 | $2.98B |
| Q4 2023 | 169 | $3.09B |
| Q3 2023 | 144 | $1.57B |
| Q2 2023 | 116 | $1.09B |
| Q1 2023 | 126 | $1.09B |
| Q4 2022 | 115 | $1.81B |
| Q3 2022 | 101 | $1.48B |
| Q2 2022 | 90 | $190.8M |
| Q1 2022 | 111 | $562.7M |
| Q4 2021 | 98 | $484.7M |
| 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 |
|---|---|---|---|---|---|
| Primecap Management Co | 6,153,691 | $120.5M | 0.08% | +148,098+2.5% | Added |
| NEA Management Company, LLC | 4,912,306 | $96.2M | 1.25% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 3,926,050 | $76.9M | 0.03% | −161,973−4.0% | Reduced |
| Baker Bros. Advisors LP | 3,863,239 | $75.6M | 0.33% | +383,366+11.0% | Added |
| Ra Capital Management, L.P. | 4,871,067 | $71.1M | 1.14% | 00.0% | Unchanged |
| BlackRock Inc. | 3,335,661 | $65.3M | 0.00% | +190,301+6.1% | Added |
| Federated Hermes, Inc. | 3,015,211 | $59.0M | 0.11% | −95,642−3.1% | Reduced |
| Vanguard Group Inc | 2,257,422 | $44.2M | 0.00% | +5,027+0.2% | Added |
| State Street Corp | 2,179,087 | $42.7M | 0.00% | −262,293−10.7% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 1,989,625 | $39.0M | 0.69% | 00.0% | Unchanged |
| Gilder Gagnon Howe & Co LLC | 1,489,123 | $29.2M | 0.14% | −34,111−2.2% | Reduced |
| Wellington Management Group LLP | 1,296,081 | $25.4M | 0.00% | +280,779+27.7% | Added |
| Goldman Sachs Group Inc | 1,068,211 | $20.9M | 0.01% | +409,057+62.1% | Added |
| MPM Asset Management LLC | 909,258 | $17.8M | 3.31% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 684,903 | $13.4M | 0.00% | +61,341+9.8% | Added |
| Rock Springs Capital Management LP | 606,280 | $11.9M | 0.24% | +7,000+1.2% | Added |
| Morgan Stanley | 446,606 | $8.74M | 0.00% | +345,757+342.8% | Added |
| Northern Trust Corp | 440,686 | $8.63M | 0.00% | +5,726+1.3% | Added |
| Samsara BioCapital, LLC | 300,293 | $5.88M | 0.77% | +99,247+49.4% | Added |
| Dimensional Fund Advisors LP | 290,270 | $5.68M | 0.00% | −18,303−5.9% | Reduced |
| Charles Schwab Investment Management Inc | 267,631 | $5.24M | 0.00% | +15,409+6.1% | Added |
| Nuveen Asset Management, LLC | 250,256 | $4.90M | 0.00% | +96,987+63.3% | Added |
| Stifel Financial Corp | 181,414 | $3.55M | 0.01% | +64,181+54.7% | Added |
| Bank of Montreal | 151,446 | $3.09M | 0.00% | +148,982+6,046.3% | Added |
| Millennium Management LLC | 156,816 | $3.07M | 0.00% | −13,711−8.0% | Reduced |
| Rice Hall James & Associates, LLC | 143,994 | $2.82M | 0.10% | +79,733+124.1% | Added |
| Assenagon Asset Management S.A. | 142,472 | $2.79M | 0.01% | +142,472 | New |
| Bank of New York Mellon Corp | 140,032 | $2.74M | 0.00% | +3,878+2.8% | Added |
| Citigroup Inc | 131,899 | $2.58M | 0.00% | −20,529−13.5% | Reduced |
| Bank of America Corp | 119,678 | $2.34M | 0.00% | +13,236+12.4% | Added |
| Altium Capital Management LP | 104,840 | $2.05M | 0.48% | −118,160−53.0% | Reduced |
| Caas Capital Management LP | 84,044 | $1.65M | 0.09% | −533,551−86.4% | Reduced |
| FMR LLC | 83,278 | $1.63M | 0.00% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 83,021 | $1.63M | 0.01% | −38,646−31.8% | Reduced |
| SG Americas Securities, LLC | 81,868 | $1.60M | 0.01% | −4,916−5.7% | Reduced |
| UBS Group AG | 80,119 | $1.57M | 0.00% | −46,731−36.8% | Reduced |
| Swiss National Bank | 76,000 | $1.49M | 0.00% | −2,700−3.4% | Reduced |
| Rhumbline Advisers | 61,012 | $1.20M | 0.00% | +20,857+51.9% | Added |
| California State Teachers Retirement System | 60,739 | $1.19M | 0.00% | +3,254+5.7% | Added |
| Two Sigma Investments, LP | 57,078 | $1.12M | 0.00% | −237,582−80.6% | Reduced |
| Renaissance Technologies LLC | 52,200 | $1.02M | 0.00% | +3,200+6.5% | Added |
| Norges Bank | 51,161 | $1.00M | 0.00% | −13,947−21.4% | Reduced |
| State of Wisconsin Investment Board | 48,400 | $948.0K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 43,535 | $852.0K | 0.00% | −80,202−64.8% | Reduced |
| Alliancebernstein L.P. | 41,600 | $815.0K | 0.00% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 40,891 | $801.0K | 0.00% | 00.0% | Unchanged |
| Brandywine Global Investment Management, LLC | 40,663 | $796.0K | 0.01% | −2,600−6.0% | Reduced |
| New York State Common Retirement Fund | 40,107 | $785.0K | 0.00% | +5,102+14.6% | Added |
| Citadel Advisors LLC | 32,574 | $638.0K | 0.00% | −86,134−72.6% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 32,193 | $630.0K | 0.03% | +505+1.6% | Added |
| Prudential Financial Inc | 30,973 | $607.0K | 0.00% | +30,973 | New |
| ACT Capital Management, LLC | 31,000 | $607.0K | 0.31% | +31,000 | New |
| Deutsche Bank AG | 29,876 | $585.0K | 0.00% | −9,353−23.8% | Reduced |
| Manufacturers Life Insurance Company, The | 25,708 | $503.0K | 0.00% | +3,686+16.7% | Added |
| Invesco Ltd. | 25,308 | $495.0K | 0.00% | +8,101+47.1% | Added |
| Parametric Portfolio Associates LLC | 25,255 | $494.0K | 0.00% | −17,300−40.7% | Reduced |
| UBS Asset Management Americas Inc | 25,215 | $493.7K | 0.00% | +14,719+140.2% | Added |
| American International Group, Inc. | 24,684 | $483.0K | 0.00% | +2,472+11.1% | Added |
| Credit Suisse AG | 23,802 | $467.0K | 0.00% | −1,654−6.5% | Reduced |
| Qube Research & Technologies Ltd | 23,224 | $455.0K | 0.01% | −3,452−12.9% | Reduced |
| JPMorgan Chase & Co | 22,169 | $434.0K | 0.00% | −57,656−72.2% | Reduced |
| Squarepoint Ops LLC | 20,611 | $404.0K | 0.00% | −50,933−71.2% | Reduced |
| ProShare Advisors LLC | 20,450 | $400.0K | 0.00% | +3,454+20.3% | Added |
| Barclays PLC | 18,488 | $363.0K | 0.00% | −55,795−75.1% | Reduced |
| Voya Investment Management LLC | 17,259 | $338.0K | 0.00% | +1,228+7.7% | Added |
| Winton Group Ltd | 16,863 | $330.0K | 0.02% | +16,863 | New |
| Price T Rowe Associates Inc | 16,712 | $327.0K | 0.00% | +1,247+8.1% | Added |
| MetLife Investment Management | 15,372 | $301.0K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 14,944 | $293.0K | 0.00% | +14,944 | New |
| State Board of Administration of Florida Retirement System | 13,844 | $271.0K | 0.00% | +13,844 | New |
| Metropolitan Life Insurance Co | 12,450 | $243.8K | 0.00% | +2,835+29.5% | Added |
| DekaBank Deutsche Girozentrale | 12,000 | $239.0K | 0.00% | 00.0% | Unchanged |
| Principal Financial Group Inc | 11,364 | $223.0K | 0.00% | +1,562+15.9% | Added |
| Virtus ETF Advisers LLC | 10,765 | $211.0K | 0.09% | +826+8.3% | Added |
| Wells Fargo & Company | 9,771 | $191.0K | 0.00% | −11,292−53.6% | Reduced |
| Cutler Group LP | 7,418 | $145.0K | 0.01% | −784−9.6% | Reduced |
| Legal & General Group Plc | 6,452 | $127.0K | 0.00% | −4−0.1% | Reduced |
| Meeder Asset Management Inc | 6,078 | $119.0K | 0.01% | +6,078 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,571 | $109.0K | 0.00% | +69+1.3% | Added |
| BNP Paribas Arbitrage, SA | 5,297 | $103.7K | 0.00% | −9,437−64.0% | Reduced |
| Simplex Trading, LLC | 5,204 | $101.0K | 0.00% | +488+10.3% | Added |
| Exane Derivatives | 5,167 | $100.1K | 0.02% | 00.0% | Unchanged |
| Royal Bank of Canada | 4,217 | $83.0K | 0.00% | +402+10.5% | Added |
| Retirement Group, LLC | 3,812 | $75.0K | 0.04% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 3,735 | $73.0K | 0.00% | +1,461+64.2% | Added |
| Sierra Capital LLC | 3,600 | $70.0K | 0.01% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 3,454 | $68.0K | 0.00% | +484+16.3% | Added |
| Great West Life Assurance Co | 2,363 | $46.0K | 0.00% | 00.0% | Unchanged |
| Macquarie Group Ltd | 1,930 | $38.0K | 0.00% | +1,463+313.3% | Added |
| Penserra Capital Management LLC | 1,145 | $22.0K | 0.00% | +35+3.2% | Added |
| FORA Capital, LLC | 1,085 | $21.0K | 0.00% | +6+0.6% | Added |
| Group One Trading, L.P. | 974 | $19.0K | 0.00% | −2,022−67.5% | Reduced |
| Advisor Group Holdings, Inc. | 915 | $18.0K | 0.00% | −80−8.0% | Reduced |
| Nisa Investment Advisors, LLC | 550 | $11.0K | 0.00% | 00.0% | Unchanged |
| Evolution Wealth Advisors, LLC | 538 | $11.0K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 500 | $10.0K | 0.00% | −168−25.1% | Reduced |
| The PNC Financial Services Group, Inc. | 359 | $7.00K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 292 | $6.00K | 0.00% | +201+220.9% | Added |
| Bessemer Group Inc | 251 | $5.00K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 200 | $4.00K | 0.00% | 00.0% | Unchanged |