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 2021
Institutional positions in Rhythm Pharmaceuticals, Inc. as of Sep 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
- 97
- −8 vs. Q2 2021
- Shares held
- 48.0M
- +470.2K (+1.0%) vs. Q2 2021
- Total value
- $626.3M
- −$279.3M (−30.8%) vs. Q2 2021
- New holders
- 7
- 29 more added
- Sold out
- 15
- 35 more reduced
Compare with Q2 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, Q3 2021
Shares, value and share of portfolio for each institution holding Rhythm Pharmaceuticals, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Primecap Management Co | 6,181,091 | $80.7M | 0.06% | +27,400+0.4% | Added |
| NEA Management Company, LLC | 4,912,306 | $64.2M | 0.80% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 4,871,067 | $63.6M | 0.88% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 3,863,239 | $50.5M | 0.22% | 00.0% | Unchanged |
| BlackRock Inc. | 3,361,986 | $43.9M | 0.00% | +26,325+0.8% | Added |
| Janus Henderson Group PLC | 3,182,382 | $41.6M | 0.02% | −743,668−18.9% | Reduced |
| Federated Hermes, Inc. | 3,011,053 | $39.3M | 0.07% | −4,158−0.1% | Reduced |
| Goldman Sachs Group Inc | 2,905,319 | $37.9M | 0.01% | +1,837,108+172.0% | Added |
| Vanguard Group Inc | 2,313,078 | $30.2M | 0.00% | +55,656+2.5% | Added |
| State Street Corp | 2,224,717 | $29.1M | 0.00% | +45,630+2.1% | Added |
| Deerfield Management Company, L.P. (Series C) | 1,989,625 | $26.0M | 0.51% | 00.0% | Unchanged |
| Gilder Gagnon Howe & Co LLC | 1,496,424 | $19.5M | 0.10% | +7,301+0.5% | Added |
| MPM Asset Management LLC | 909,258 | $11.9M | 2.75% | 00.0% | Unchanged |
| Wellington Management Group LLP | 845,952 | $11.0M | 0.00% | −450,129−34.7% | Reduced |
| Geode Capital Management, LLC | 667,658 | $8.72M | 0.00% | −17,245−2.5% | Reduced |
| Rock Springs Capital Management LP | 612,180 | $8.00M | 0.17% | +5,900+1.0% | Added |
| Assenagon Asset Management S.A. | 502,270 | $6.56M | 0.03% | +359,798+252.5% | Added |
| Northern Trust Corp | 420,434 | $5.49M | 0.00% | −20,252−4.6% | Reduced |
| Samsara BioCapital, LLC | 300,293 | $3.92M | 0.65% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 266,362 | $3.48M | 0.00% | −1,269−0.5% | Reduced |
| Millennium Management LLC | 216,924 | $2.83M | 0.00% | +60,108+38.3% | Added |
| Nuveen Asset Management, LLC | 213,982 | $2.79M | 0.00% | −36,274−14.5% | Reduced |
| Morgan Stanley | 205,466 | $2.68M | 0.00% | −241,140−54.0% | Reduced |
| Bank of America Corp | 204,463 | $2.67M | 0.00% | +84,785+70.8% | Added |
| Dimensional Fund Advisors LP | 180,445 | $2.36M | 0.00% | −109,825−37.8% | Reduced |
| Franklin Resources Inc | 168,083 | $2.19M | 0.00% | +168,083 | New |
| Bank of New York Mellon Corp | 156,423 | $2.04M | 0.00% | +16,391+11.7% | Added |
| Rice Hall James & Associates, LLC | 149,720 | $1.96M | 0.07% | +5,726+4.0% | Added |
| Stifel Financial Corp | 134,586 | $1.76M | 0.00% | −46,828−25.8% | Reduced |
| SG Americas Securities, LLC | 109,303 | $1.43M | 0.01% | +27,435+33.5% | Added |
| FMR LLC | 83,278 | $1.09M | 0.00% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 82,854 | $1.08M | 0.01% | −167−0.2% | Reduced |
| UBS Group AG | 80,970 | $1.06M | 0.00% | +851+1.1% | Added |
| Swiss National Bank | 77,700 | $1.01M | 0.00% | +1,700+2.2% | Added |
| Rhumbline Advisers | 61,287 | $800.0K | 0.00% | +275+0.5% | Added |
| Citigroup Inc | 59,726 | $780.0K | 0.00% | −72,173−54.7% | Reduced |
| Susquehanna International Group, LLP | 53,203 | $695.0K | 0.00% | +9,668+22.2% | Added |
| California State Teachers Retirement System | 52,492 | $686.0K | 0.00% | −8,247−13.6% | Reduced |
| Norges Bank | 51,161 | $668.0K | 0.00% | 00.0% | Unchanged |
| Walleye Capital LLC | 49,845 | $651.0K | 0.02% | +49,845 | New |
| Hennion & Walsh Asset Management, Inc. | 48,950 | $639.0K | 0.03% | +16,757+52.1% | Added |
| State of Wisconsin Investment Board | 48,400 | $632.0K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 41,600 | $543.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 35,294 | $461.0K | 0.00% | +16,806+90.9% | Added |
| New York State Common Retirement Fund | 35,165 | $459.0K | 0.00% | −4,942−12.3% | Reduced |
| ACT Capital Management, LLC | 31,000 | $405.0K | 0.21% | 00.0% | Unchanged |
| Invesco Ltd. | 27,333 | $357.0K | 0.00% | +2,025+8.0% | Added |
| Deutsche Bank AG | 26,639 | $348.0K | 0.00% | −3,237−10.8% | Reduced |
| Credit Suisse AG | 25,580 | $335.0K | 0.00% | +1,778+7.5% | Added |
| UBS Asset Management Americas Inc | 25,215 | $329.3K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 24,423 | $319.0K | 0.00% | −1,285−5.0% | Reduced |
| American International Group, Inc. | 24,111 | $315.0K | 0.00% | −573−2.3% | Reduced |
| Winton Group Ltd | 24,048 | $314.0K | 0.02% | +7,185+42.6% | Added |
| Prudential Financial Inc | 22,752 | $297.0K | 0.00% | −8,221−26.5% | Reduced |
| JPMorgan Chase & Co | 22,501 | $293.0K | 0.00% | +332+1.5% | Added |
| Two Sigma Investments, LP | 22,306 | $291.0K | 0.00% | −34,772−60.9% | Reduced |
| Parametric Portfolio Associates LLC | 18,850 | $246.0K | 0.00% | −6,405−25.4% | Reduced |
| Voya Investment Management LLC | 17,259 | $225.0K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 16,712 | $218.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 16,375 | $214.0K | 0.00% | −4,075−19.9% | Reduced |
| Qube Research & Technologies Ltd | 15,453 | $202.0K | 0.00% | −7,771−33.5% | Reduced |
| MetLife Investment Management | 15,372 | $200.8K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 13,844 | $181.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 13,263 | $173.0K | 0.00% | +6,811+105.6% | Added |
| DekaBank Deutsche Girozentrale | 12,000 | $157.0K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 11,601 | $152.0K | 0.00% | −3,343−22.4% | Reduced |
| BNP Paribas Arbitrage, SA | 10,908 | $142.5K | 0.00% | +5,611+105.9% | Added |
| Virtus ETF Advisers LLC | 10,229 | $134.0K | 0.06% | −536−5.0% | Reduced |
| AQR Capital Management LLC | 10,191 | $133.0K | 0.00% | +10,191 | New |
| Metropolitan Life Insurance Co | 8,793 | $114.8K | 0.00% | −3,657−29.4% | Reduced |
| Macquarie Group Ltd | 7,691 | $100.0K | 0.00% | +5,761+298.5% | Added |
| Simplex Trading, LLC | 4,404 | $91.0K | 0.00% | −800−15.4% | Reduced |
| Hantz Financial Services, Inc. | 5,883 | $77.0K | 0.00% | +5,883 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,571 | $73.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 4,580 | $60.0K | 0.00% | +363+8.6% | Added |
| Sierra Capital LLC | 3,600 | $47.0K | 0.01% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 3,454 | $45.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 3,197 | $41.0K | 0.00% | −538−14.4% | Reduced |
| Great West Life Assurance Co | 2,363 | $31.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 2,213 | $29.0K | 0.00% | −7,558−77.4% | Reduced |
| Signaturefd, LLC | 1,964 | $26.0K | 0.00% | +1,464+292.8% | Added |
| Penserra Capital Management LLC | 1,145 | $14.0K | 0.00% | 00.0% | Unchanged |
| Koshinski Asset Management, Inc. | 1,060 | $13.8K | 0.00% | +1,060 | New |
| Advisor Group Holdings, Inc. | 810 | $11.0K | 0.00% | −105−11.5% | Reduced |
| Nisa Investment Advisors, LLC | 550 | $7.00K | 0.00% | 00.0% | Unchanged |
| FourThought Financial, LLC | 570 | $7.00K | 0.00% | +570 | New |
| The PNC Financial Services Group, Inc. | 350 | $5.00K | 0.00% | −9−2.5% | Reduced |
| Group One Trading, L.P. | 241 | $3.00K | 0.00% | −733−75.3% | Reduced |
| Evolution Wealth Advisors, LLC | 213 | $3.00K | 0.00% | −325−60.4% | Reduced |
| State of Wyoming | 219 | $3.00K | 0.00% | −73−25.0% | Reduced |
| Bessemer Group Inc | 251 | $3.00K | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 200 | $2.00K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 172 | $2.00K | 0.00% | +74+75.5% | Added |
| Parallel Advisors, LLC | 181 | $2.00K | 0.00% | +181 | New |
| US Bancorp | 96 | $1.00K | 0.00% | −40−29.4% | Reduced |
| Newbridge Financial Services Group, Inc. | 65 | $1.00K | 0.00% | 00.0% | Unchanged |
| Captrust Financial Advisors | 19 | $0 | 0.00% | −12−38.7% | Reduced |
| Bank of Montreal | 0 | $0 | 0.00% | −151,446−100.0% | Sold out |
| Altium Capital Management LP | 0 | $0 | 0.00% | −104,840−100.0% | Sold out |
| Caas Capital Management LP | 0 | $0 | 0.00% | −84,044−100.0% | Sold out |