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 2023
Institutional positions in Rhythm Pharmaceuticals, Inc. as of Jun 30, 2023. 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
- 116
- −10 vs. Q1 2023
- Shares held
- 66.2M
- +5.88M (+9.7%) vs. Q1 2023
- Total value
- $1.09B
- +$15.7M (+1.5%) vs. Q1 2023
- New holders
- 28
- 42 more added
- Sold out
- 38
- 23 more reduced
Compare with Q1 2023: 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 2023
Shares, value and share of portfolio for each institution holding Rhythm Pharmaceuticals, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Primecap Management Co | 8,299,317 | $136.9M | 0.11% | +692,006+9.1% | Added |
| Baker Bros. Advisors LP | 6,498,267 | $107.2M | 0.62% | 00.0% | Unchanged |
| BlackRock Inc. | 6,265,005 | $103.3M | 0.00% | +2,484,406+65.7% | Added |
| Ra Capital Management, L.P. | 5,676,067 | $93.6M | 1.77% | +160,000+2.9% | Added |
| Goldman Sachs Group Inc | 5,186,013 | $85.5M | 0.02% | −124,690−2.3% | Reduced |
| Federated Hermes, Inc. | 3,891,683 | $64.2M | 0.16% | 00.0% | Unchanged |
| State Street Corp | 3,267,425 | $53.9M | 0.00% | +655,237+25.1% | Added |
| Vanguard Group Inc | 2,929,429 | $48.3M | 0.00% | +281,293+10.6% | Added |
| NEA Management Company, LLC | 2,909,956 | $48.0M | 3.66% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 2,250,000 | $37.1M | 0.25% | +500,000+28.6% | Added |
| Frazier Life Sciences Management, L.P. | 2,167,222 | $35.7M | 2.13% | +2,483+0.1% | Added |
| Alkeon Capital Management LLC | 1,725,167 | $28.4M | 0.17% | −290,799−14.4% | Reduced |
| Rock Springs Capital Management LP | 1,597,123 | $26.3M | 0.63% | 00.0% | Unchanged |
| VR Adviser, LLC | 1,090,000 | $18.0M | 2.87% | +1,090,000 | New |
| Janus Henderson Group PLC | 1,078,207 | $17.8M | 0.01% | −19,366−1.8% | Reduced |
| Geode Capital Management, LLC | 973,350 | $16.1M | 0.00% | +500,589+105.9% | Added |
| Braidwell LP | 843,087 | $13.9M | 0.45% | +843,087 | New |
| Great Point Partners LLC | 772,000 | $12.7M | 2.55% | +674,456+691.4% | Added |
| Opaleye Management Inc. | 735,000 | $12.1M | 2.90% | 00.0% | Unchanged |
| FMR LLC | 701,534 | $11.6M | 0.00% | +2,710+0.4% | Added |
| Cormorant Asset Management, LP | 600,000 | $9.89M | 0.56% | +600,000 | New |
| Assenagon Asset Management S.A. | 543,210 | $8.96M | 0.04% | −120,816−18.2% | Reduced |
| Northern Trust Corp | 494,202 | $8.15M | 0.00% | +352,065+247.7% | Added |
| Walleye Capital LLC | 395,541 | $6.52M | 0.11% | +257,772+187.1% | Added |
| Charles Schwab Investment Management Inc | 350,559 | $5.78M | 0.00% | +122,522+53.7% | Added |
| Samsara BioCapital, LLC | 345,293 | $5.69M | 1.00% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 259,344 | $4.28M | 0.02% | +4,134+1.6% | Added |
| Price T Rowe Associates Inc | 223,237 | $3.68M | 0.00% | +51,657+30.1% | Added |
| UBS Asset Management Americas Inc | 206,035 | $3.68M | 0.00% | 00.0% | Unchanged |
| Wedge Capital Management L L P | 218,425 | $3.60M | 0.06% | +218,425 | New |
| Nuveen Asset Management, LLC | 198,443 | $3.27M | 0.00% | +149,039+301.7% | Added |
| Citadel Advisors LLC | 189,532 | $3.13M | 0.00% | −175,508−48.1% | Reduced |
| Bank of New York Mellon Corp | 187,796 | $3.10M | 0.00% | +161,070+602.7% | Added |
| Rice Hall James & Associates, LLC | 158,959 | $2.62M | 0.15% | +5,173+3.4% | Added |
| Wellington Management Group LLP | 140,221 | $2.31M | 0.00% | +28,588+25.6% | Added |
| Bank of America Corp | 140,118 | $2.31M | 0.00% | −219,548−61.0% | Reduced |
| Barclays PLC | 130,228 | $2.15M | 0.00% | +43,110+49.5% | Added |
| Jefferies Financial Group Inc. | 124,170 | $2.05M | 0.04% | +113,397+1,052.6% | Added |
| Silverarc Capital Management, LLC | 116,168 | $1.92M | 0.65% | +116,168 | New |
| Dimensional Fund Advisors LP | 103,958 | $1.71M | 0.00% | −20,551−16.5% | Reduced |
| Morgan Stanley | 103,181 | $1.70M | 0.00% | −113,440−52.4% | Reduced |
| Swiss National Bank | 98,800 | $1.63M | 0.00% | +1,500+1.5% | Added |
| Kynam Capital Management, LP | 92,602 | $1.53M | 0.23% | 00.0% | Unchanged |
| Citigroup Inc | 88,065 | $1.45M | 0.00% | −251,890−74.1% | Reduced |
| UBS Group AG | 87,849 | $1.45M | 0.00% | +3,772+4.5% | Added |
| Voya Investment Management LLC | 84,038 | $1.39M | 0.00% | +20,443+32.1% | Added |
| Wells Fargo & Company | 77,094 | $1.27M | 0.00% | +26,291+51.8% | Added |
| Jane Street Group, LLC | 76,024 | $1.25M | 0.00% | −273,615−78.3% | Reduced |
| Rhumbline Advisers | 69,598 | $1.15M | 0.00% | +69,598 | New |
| JPMorgan Chase & Co | 69,588 | $1.15M | 0.00% | +47,303+212.3% | Added |
| Credit Suisse AG | 69,001 | $1.14M | 0.00% | +13,710+24.8% | Added |
| Gsa Capital Partners LLP | 68,564 | $1.13M | 0.11% | +68,564 | New |
| Algert Global LLC | 59,093 | $974.4K | 0.04% | +59,093 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 58,119 | $958.4K | 0.00% | +58,119 | New |
| California State Teachers Retirement System | 57,029 | $940.4K | 0.00% | +4,607+8.8% | Added |
| Alliancebernstein L.P. | 54,390 | $896.9K | 0.00% | +54,390 | New |
| BNP Paribas Arbitrage, SA | 53,355 | $879.8K | 0.00% | −33,687−38.7% | Reduced |
| Profund Advisors LLC | 47,080 | $776.3K | 0.04% | +705+1.5% | Added |
| Stifel Financial Corp | 46,696 | $770.0K | 0.00% | +25,206+117.3% | Added |
| First Trust Advisors LP | 44,165 | $728.3K | 0.00% | +44,165 | New |
| State of Wisconsin Investment Board | 42,816 | $706.0K | 0.00% | +1,205+2.9% | Added |
| Legal & General Group Plc | 42,653 | $703.4K | 0.00% | +25,534+149.2% | Added |
| Alps Advisors Inc | 41,793 | $689.2K | 0.01% | +4,405+11.8% | Added |
| Nan Fung Group Holdings Ltd | 40,070 | $660.8K | 0.42% | +7,550+23.2% | Added |
| Soleus Capital Management, L.P. | 38,600 | $636.5K | 0.07% | +38,600 | New |
| Marshall Wace, LLP | 36,371 | $599.8K | 0.00% | −57,475−61.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 33,984 | $562.3K | 0.00% | +22,928+207.4% | Added |
| Stratos Wealth Partners, LTD. | 28,584 | $471.4K | 0.01% | −25,500−47.1% | Reduced |
| Invesco Ltd. | 28,276 | $466.3K | 0.00% | +28,276 | New |
| Utah Retirement Systems | 28,197 | $465.0K | 0.01% | 00.0% | Unchanged |
| MetLife Investment Management | 27,123 | $447.3K | 0.00% | +27,123 | New |
| Walleye Trading LLC | 25,395 | $418.8K | 0.02% | +25,395 | New |
| American International Group, Inc. | 24,729 | $407.8K | 0.00% | +24,729 | New |
| Deutsche Bank AG | 24,225 | $399.5K | 0.00% | +18,579+329.1% | Added |
| Driehaus Capital Management LLC | 22,993 | $379.2K | 0.00% | 00.0% | Unchanged |
| Hennion & Walsh Asset Management, Inc. | 21,183 | $349.0K | 0.02% | −36,152−63.1% | Reduced |
| Manufacturers Life Insurance Company, The | 20,906 | $344.7K | 0.00% | +20,906 | New |
| New York State Common Retirement Fund | 20,100 | $331.4K | 0.00% | +19,028+1,775.0% | Added |
| Fiduciary Trust Co | 20,000 | $329.8K | 0.01% | 00.0% | Unchanged |
| Virtus ETF Advisers LLC | 19,414 | $320.1K | 0.19% | +9,010+86.6% | Added |
| Ameriprise Financial Inc | 18,140 | $299.1K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 16,298 | $268.8K | 0.00% | −768,257−97.9% | Reduced |
| Ensign Peak Advisors, Inc | 16,200 | $267.1K | 0.00% | +16,200 | New |
| ExodusPoint Capital Management, LP | 15,681 | $259.0K | 0.00% | −37,977−70.8% | Reduced |
| State Board of Administration of Florida Retirement System | 14,590 | $240.6K | 0.00% | +14,590 | New |
| E Fund Management Co., Ltd. | 13,948 | $230.0K | 0.02% | −536−3.7% | Reduced |
| Virtu Financial LLC | 13,188 | $217.0K | 0.02% | +13,188 | New |
| Arizona State Retirement System | 12,751 | $210.3K | 0.00% | −310−2.4% | Reduced |
| AQR Capital Management LLC | 12,716 | $209.7K | 0.00% | +12,716 | New |
| Teacher Retirement System of Texas | 12,316 | $203.0K | 0.00% | −1,571−11.3% | Reduced |
| Allianz Asset Management GmbH | 11,900 | $196.2K | 0.00% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 11,393 | $187.9K | 0.00% | −14,481−56.0% | Reduced |
| ProShare Advisors LLC | 10,361 | $170.9K | 0.00% | +10,361 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,949 | $147.6K | 0.00% | −159−1.7% | Reduced |
| Public Employees Retirement Association of Colorado | 7,985 | $132.0K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 7,789 | $128.0K | 0.00% | +7,789 | New |
| Royal Bank of Canada | 7,249 | $120.0K | 0.00% | +5,286+269.3% | Added |
| HarbourVest Partners LLC | 5,639 | $93.0K | 0.03% | 00.0% | Unchanged |
| Texas Treasury Safekeeping Trust Co | 4,230 | $70.0K | 0.02% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 4,242 | $70.0K | 0.00% | +4,242 | New |