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, Q3 2024
Institutional positions in Rhythm Pharmaceuticals, Inc. as of Sep 30, 2024. 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
- 176
- +12 vs. Q2 2024
- Shares held
- 67.7M
- +5.14M (+8.2%) vs. Q2 2024
- Total value
- $3.55B
- +$976.9M (+38.0%) vs. Q2 2024
- New holders
- 31
- 61 more added
- Sold out
- 19
- 54 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: 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, Q3 2024
Shares, value and share of portfolio for each institution holding Rhythm Pharmaceuticals, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Citigroup Inc | 41,197 | $2.16M | 0.00% | +21,205+106.1% | Added |
| StemPoint Capital LP | 41,268 | $2.16M | 0.65% | +41,268 | New |
| Harbor Capital Advisors, Inc. | 41,368 | $2.17M | 0.09% | +6,741+19.5% | Added |
| Ameriprise Financial Inc | 41,887 | $2.19M | 0.00% | +1,472+3.6% | Added |
| California State Teachers Retirement System | 43,916 | $2.30M | 0.00% | −841−1.9% | Reduced |
| Manufacturers Life Insurance Company, The | 48,703 | $2.55M | 0.00% | −588−1.2% | Reduced |
| Wedge Capital Management L L P | 48,844 | $2.56M | 0.04% | −14,353−22.7% | Reduced |
| Nan Fung Group Holdings Ltd | 49,120 | $2.57M | 2.22% | 00.0% | Unchanged |
| FMR LLC | 50,295 | $2.63M | 0.00% | +22,306+79.7% | Added |
| Legal & General Group Plc | 50,852 | $2.66M | 0.00% | +1,081+2.2% | Added |
| Algert Global LLC | 54,171 | $2.84M | 0.08% | −49,961−48.0% | Reduced |
| JGP Global Gestao de Recursos Ltda. | 56,378 | $2.95M | 5.78% | +50,564+869.7% | Added |
| Alliancebernstein L.P. | 59,570 | $3.12M | 0.00% | −1,500−2.5% | Reduced |
| Rafferty Asset Management, LLC | 64,576 | $3.38M | 0.01% | −7,986−11.0% | Reduced |
| Nisa Investment Advisors, LLC | 66,240 | $3.47M | 0.02% | −308,107−82.3% | Reduced |
| Norges Bank | 66,276 | $3.47M | 0.00% | +23,038+53.3% | Added |
| Canada Pension Plan Investment Board | 67,000 | $3.51M | 0.00% | −350,000−83.9% | Reduced |
| First Trust Advisors LP | 70,762 | $3.71M | 0.00% | −20,248−22.2% | Reduced |
| UBS Group AG | 76,634 | $4.01M | 0.00% | +10,692+16.2% | Added |
| Ghost Tree Capital, LLC | 78,842 | $4.13M | 1.41% | −38,546−32.8% | Reduced |
| Rhumbline Advisers | 80,714 | $4.23M | 0.00% | −2,349−2.8% | Reduced |
| JPMorgan Chase & Co | 81,592 | $4.27M | 0.00% | −58,554−41.8% | Reduced |
| Clearbridge Investments, LLC | 87,424 | $4.58M | 0.00% | −684−0.8% | Reduced |
| Swiss National Bank | 89,300 | $4.68M | 0.00% | +600+0.7% | Added |
| Hennion & Walsh Asset Management, Inc. | 100,961 | $5.29M | 0.25% | +4,583+4.8% | Added |
| Lord, Abbett & Co. LLC | 102,646 | $5.38M | 0.02% | +55+0.1% | Added |
| Citadel Advisors LLC | 102,778 | $5.38M | 0.01% | +102,778 | New |
| Voya Investment Management LLC | 102,832 | $5.39M | 0.01% | +65,021+172.0% | Added |
| Bank of America Corp | 106,250 | $5.57M | 0.00% | +14,207+15.4% | Added |
| Barclays PLC | 106,397 | $5.57M | 0.00% | +52,766+98.4% | Added |
| Jane Street Group, LLC | 109,186 | $5.72M | 0.01% | −37,314−25.5% | Reduced |
| Standard Life Aberdeen plc | 112,804 | $5.91M | 0.01% | 00.0% | Unchanged |
| Great Lakes Advisors, LLC | 136,950 | $7.17M | 0.06% | +136,950 | New |
| Woodline Partners LP | 143,823 | $7.53M | 0.06% | +99,576+225.0% | Added |
| Nuveen Asset Management, LLC | 147,875 | $7.75M | 0.00% | −1,244−0.8% | Reduced |
| Bank of New York Mellon Corp | 148,926 | $7.80M | 0.00% | −42,945−22.4% | Reduced |
| Samsara BioCapital, LLC | 172,647 | $9.04M | 1.74% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 225,373 | $11.8M | 0.00% | −11,058−4.7% | Reduced |
| Franklin Resources Inc | 259,416 | $13.0M | 0.00% | +26,739+11.5% | Added |
| Silverarc Capital Management, LLC | 255,578 | $13.4M | 3.02% | +70,916+38.4% | Added |
| Invesco Ltd. | 264,417 | $13.9M | 0.00% | −12,283−4.4% | Reduced |
| Sofinnova Investments, Inc. | 276,678 | $14.5M | 1.20% | +276,678 | New |
| Pictet Asset Management Holding SA | 329,339 | $17.3M | 0.02% | −472,457−58.9% | Reduced |
| National Bank of Canada | 341,507 | $17.9M | 0.02% | −62,735−15.5% | Reduced |
| Voloridge Investment Management, LLC | 353,323 | $18.5M | 0.07% | −108,865−23.6% | Reduced |
| Candriam Luxembourg S.C.A. | 395,377 | $20.7M | 0.12% | +123,979+45.7% | Added |
| Cormorant Asset Management, LP | 400,000 | $21.0M | 1.11% | −75,000−15.8% | Reduced |
| Marshall Wace, LLP | 406,615 | $21.3M | 0.03% | +299,806+280.7% | Added |
| Charles Schwab Investment Management Inc | 433,866 | $22.7M | 0.00% | +5,908+1.4% | Added |
| OrbiMed Advisors LLC | 435,900 | $22.8M | 0.42% | −268,942−38.2% | Reduced |
| Morgan Stanley | 464,604 | $24.3M | 0.00% | −11,047−2.3% | Reduced |
| Northern Trust Corp | 498,466 | $26.1M | 0.00% | −982−0.2% | Reduced |
| Opaleye Management Inc. | 500,000 | $26.2M | 4.37% | −15,000−2.9% | Reduced |
| Price T Rowe Associates Inc | 550,530 | $28.8M | 0.00% | +24,588+4.7% | Added |
| Janus Henderson Group PLC | 598,122 | $31.3M | 0.02% | +4,480+0.8% | Added |
| Hood River Capital Management LLC | 614,598 | $32.2M | 0.52% | +614,598 | New |
| Loomis Sayles & Co L P | 636,628 | $33.4M | 0.04% | +636,628 | New |
| Commodore Capital LP | 650,000 | $34.1M | 2.13% | −575,000−46.9% | Reduced |
| Checkpoint Capital L.P. | 663,381 | $34.8M | 17.24% | −258,719−28.1% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 1,111,043 | $58.2M | 0.14% | +143,800+14.9% | Added |
| Alkeon Capital Management LLC | 1,167,700 | $61.2M | 0.34% | +167,700+16.8% | Added |
| Rock Springs Capital Management LP | 1,228,093 | $64.3M | 2.09% | −52,400−4.1% | Reduced |
| Geode Capital Management, LLC | 1,256,188 | $65.8M | 0.01% | +3,499+0.3% | Added |
| Driehaus Capital Management LLC | 1,299,490 | $68.1M | 0.58% | +117,120+9.9% | Added |
| Polar Capital Holdings Plc | 1,500,000 | $78.6M | 0.46% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 1,663,900 | $87.2M | 0.19% | +3,116+0.2% | Added |
| State Street Corp | 1,993,166 | $104.4M | 0.00% | −10,716−0.5% | Reduced |
| Frazier Life Sciences Management, L.P. | 2,416,952 | $126.6M | 5.08% | +45,648+1.9% | Added |
| NEA Management Company, LLC | 2,909,956 | $152.5M | 8.31% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,447,911 | $180.6M | 0.00% | +87,216+2.6% | Added |
| Perceptive Advisors LLC | 3,560,214 | $186.5M | 4.00% | +113,635+3.3% | Added |
| Goldman Sachs Group Inc | 3,879,796 | $203.3M | 0.04% | −1,408,839−26.6% | Reduced |
| Ra Capital Management, L.P. | 6,084,412 | $318.8M | 3.68% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 6,398,366 | $335.2M | 3.47% | +10.0% | Added |
| BlackRock, Inc. | 6,889,258 | $360.9M | 0.01% | +6,889,258 | New |
| Primecap Management Co | 7,216,911 | $378.1M | 0.28% | −95,480−1.3% | Reduced |
| Artisan Partners Limited Partnership | 0 | $0 | 0.00% | −271,267−100.0% | Sold out |
| Rice Hall James & Associates, LLC | 0 | $0 | 0.00% | −93,081−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −44,984−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −26,629−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −26,243−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −23,136−100.0% | Sold out |
| Parkwood LLC | 0 | $0 | 0.00% | −16,387−100.0% | Sold out |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −13,000−100.0% | Sold out |
| Kennedy Capital Management, Inc. | 0 | $0 | 0.00% | −11,154−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −9,340−100.0% | Sold out |
| Toroso Investments, LLC | 0 | $0 | 0.00% | −9,011−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −7,800−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −4,991−100.0% | Sold out |
| Allianz SE | 0 | $0 | 0.00% | −1,350−100.0% | Sold out |
| ORG Partners LLC | 0 | $0 | 0.00% | −1,206−100.0% | Sold out |
| Tucker Asset Management LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −413−100.0% | Sold out |
| Mather Group, LLC. | 0 | $0 | 0.00% | −65−100.0% | Sold out |
| Innealta Capital, LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |