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, Q1 2022
Institutional positions in Rhythm Pharmaceuticals, Inc. as of Mar 31, 2022. 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
- 111
- +13 vs. Q4 2021
- Shares held
- 48.9M
- +401.3K (+0.8%) vs. Q4 2021
- Total value
- $562.7M
- +$79.1M (+16.4%) vs. Q4 2021
- New holders
- 22
- 32 more added
- Sold out
- 9
- 37 more reduced
Compare with Q4 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, Q1 2022
Shares, value and share of portfolio for each institution holding Rhythm Pharmaceuticals, Inc.; share changes are against Q4 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Primecap Management Co | 6,291,991 | $72.5M | 0.05% | +35,000+0.6% | Added |
| Federated Hermes, Inc. | 5,065,113 | $58.4M | 0.13% | +2,261,778+80.7% | Added |
| NEA Management Company, LLC | 4,912,306 | $56.6M | 1.83% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 4,871,067 | $56.1M | 1.22% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 4,125,062 | $47.5M | 0.27% | +261,823+6.8% | Added |
| Goldman Sachs Group Inc | 3,339,750 | $38.5M | 0.01% | +243,202+7.9% | Added |
| BlackRock Inc. | 3,284,105 | $37.8M | 0.00% | −43,956−1.3% | Reduced |
| Janus Henderson Group PLC | 2,951,002 | $34.0M | 0.02% | −182,933−5.8% | Reduced |
| Vanguard Group Inc | 2,257,020 | $26.0M | 0.00% | −66,501−2.9% | Reduced |
| Franklin Resources Inc | 1,779,454 | $20.5M | 0.01% | +242,582+15.8% | Added |
| Rock Springs Capital Management LP | 1,237,026 | $14.3M | 0.36% | +609,846+97.2% | Added |
| MPM Asset Management LLC | 909,258 | $10.5M | 3.58% | 00.0% | Unchanged |
| State Street Corp | 811,183 | $9.35M | 0.00% | −1,119,907−58.0% | Reduced |
| Geode Capital Management, LLC | 740,889 | $8.54M | 0.00% | +26,861+3.8% | Added |
| Assenagon Asset Management S.A. | 705,920 | $8.13M | 0.03% | +21,174+3.1% | Added |
| FMR LLC | 553,867 | $6.38M | 0.00% | +7,547+1.4% | Added |
| Northern Trust Corp | 416,887 | $4.80M | 0.00% | −12,184−2.8% | Reduced |
| Millennium Management LLC | 360,592 | $4.15M | 0.01% | +46,888+14.9% | Added |
| Samsara BioCapital, LLC | 345,293 | $3.98M | 1.01% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 298,325 | $3.44M | 0.00% | +9,219+3.2% | Added |
| Deerfield Management Company, L.P. (Series C) | 291,005 | $3.35M | 0.07% | −1,576,462−84.4% | Reduced |
| Morgan Stanley | 255,492 | $2.94M | 0.00% | −12,871−4.8% | Reduced |
| Citadel Advisors LLC | 249,924 | $2.88M | 0.00% | +249,924 | New |
| Deutsche Bank AG | 227,114 | $2.62M | 0.00% | +200,360+748.9% | Added |
| Nuveen Asset Management, LLC | 199,950 | $2.25M | 0.00% | −2,428−1.2% | Reduced |
| Dimensional Fund Advisors LP | 193,709 | $2.23M | 0.00% | +34,840+21.9% | Added |
| Bank of New York Mellon Corp | 152,349 | $1.76M | 0.00% | −4,569−2.9% | Reduced |
| Pinz Capital Management, LP | 148,475 | $1.71M | 1.07% | +148,475 | New |
| Rice Hall James & Associates, LLC | 136,521 | $1.57M | 0.06% | +8,975+7.0% | Added |
| Bell & Brown Wealth Advisors, LLC | 117,400 | $1.35M | 0.61% | +117,400 | New |
| Endurant Capital Management LP | 105,792 | $1.22M | 0.37% | −91,670−46.4% | Reduced |
| State of Wisconsin Investment Board | 97,900 | $1.13M | 0.00% | +49,500+102.3% | Added |
| D. E. Shaw & Co., Inc. | 96,985 | $1.12M | 0.00% | +96,985 | New |
| Wellington Management Group LLP | 85,811 | $989.0K | 0.00% | −660,072−88.5% | Reduced |
| SG Americas Securities, LLC | 85,182 | $981.0K | 0.01% | −6,477−7.1% | Reduced |
| Swiss National Bank | 83,300 | $960.0K | 0.00% | +5,600+7.2% | Added |
| Rhumbline Advisers | 56,942 | $656.0K | 0.00% | −3,595−5.9% | Reduced |
| Hennion & Walsh Asset Management, Inc. | 53,300 | $614.0K | 0.03% | +1,088+2.1% | Added |
| Tudor Investment Corp Et Al | 51,238 | $590.0K | 0.02% | +21,760+73.8% | Added |
| HRT Financial LP | 49,198 | $566.0K | 0.00% | +23,280+89.8% | Added |
| California State Teachers Retirement System | 48,651 | $560.0K | 0.00% | −4,838−9.0% | Reduced |
| Alliancebernstein L.P. | 44,900 | $517.0K | 0.00% | +100+0.2% | Added |
| Caxton Associates LP | 41,108 | $474.0K | 0.05% | −18,289−30.8% | Reduced |
| Bank of America Corp | 39,615 | $457.0K | 0.00% | −83,020−67.7% | Reduced |
| Tower Research Capital LLC (TRC) | 34,508 | $397.0K | 0.00% | +31,990+1,270.5% | Added |
| New York State Common Retirement Fund | 30,582 | $352.0K | 0.00% | +60.0% | Added |
| UBS Asset Management Americas Inc | 29,431 | $339.0K | 0.00% | 00.0% | Unchanged |
| ACT Capital Management, LLC | 27,500 | $317.0K | 0.34% | 00.0% | Unchanged |
| Jump Financial, LLC | 27,500 | $317.0K | 0.01% | +27,500 | New |
| Credit Suisse AG | 27,271 | $314.0K | 0.00% | −1,146−4.0% | Reduced |
| JPMorgan Chase & Co | 26,981 | $312.0K | 0.00% | +4,701+21.1% | Added |
| Stifel Financial Corp | 26,366 | $303.0K | 0.00% | −47,547−64.3% | Reduced |
| MetLife Investment Management | 24,442 | $281.6K | 0.00% | +9,070+59.0% | Added |
| Nisa Investment Advisors, LLC | 23,400 | $270.0K | 0.00% | +19,800+550.0% | Added |
| Renaissance Technologies LLC | 23,100 | $266.0K | 0.00% | +23,100 | New |
| American International Group, Inc. | 21,871 | $252.0K | 0.00% | −1,540−6.6% | Reduced |
| Barclays PLC | 21,199 | $245.0K | 0.00% | −32,270−60.4% | Reduced |
| Hantz Financial Services, Inc. | 19,887 | $229.0K | 0.01% | +3,018+17.9% | Added |
| Manufacturers Life Insurance Company, The | 19,385 | $223.3K | 0.00% | −5,310−21.5% | Reduced |
| Jane Street Group, LLC | 18,923 | $218.0K | 0.00% | +18,923 | New |
| Susquehanna International Group, LLP | 17,671 | $204.0K | 0.00% | −46,797−72.6% | Reduced |
| Voya Investment Management LLC | 17,216 | $198.0K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 16,507 | $190.0K | 0.00% | −7,741−31.9% | Reduced |
| Virtus ETF Advisers LLC | 16,317 | $188.0K | 0.08% | −973−5.6% | Reduced |
| Squarepoint Ops LLC | 14,562 | $168.0K | 0.00% | +14,562 | New |
| State Board of Administration of Florida Retirement System | 13,990 | $161.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 13,465 | $155.0K | 0.00% | −3,242−19.4% | Reduced |
| Legal & General Group Plc | 13,263 | $153.0K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 12,900 | $149.0K | 0.00% | +12,900 | New |
| Virginia Retirement Systems Et Al | 11,800 | $136.0K | 0.00% | +11,800 | New |
| BNP Paribas Arbitrage, SA | 11,764 | $135.5K | 0.00% | −25,610−68.5% | Reduced |
| Mirabella Financial Services LLP | 10,530 | $121.0K | 0.01% | +10,530 | New |
| Parametric Portfolio Associates LLC | 10,309 | $119.0K | 0.00% | −5,881−36.3% | Reduced |
| Exane Derivatives | 10,233 | $117.9K | 0.03% | +2,347+29.8% | Added |
| AQR Capital Management LLC | 10,131 | $117.0K | 0.00% | +10,131 | New |
| Wells Fargo & Company | 9,818 | $113.0K | 0.00% | −11,325−53.6% | Reduced |
| Macquarie Group Ltd | 8,155 | $94.0K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 5,326 | $61.0K | 0.00% | +5,326 | New |
| Amalgamated Financial Corp. | 5,326 | $61.0K | 0.00% | +5,326 | New |
| Ensign Peak Advisors, Inc | 5,090 | $59.0K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 4,532 | $52.0K | 0.00% | −91,485−95.3% | Reduced |
| Simplex Trading, LLC | 3,899 | $44.0K | 0.00% | +551+16.5% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 3,742 | $43.0K | 0.00% | −1,656−30.7% | Reduced |
| Ameritas Investment Partners, Inc. | 3,454 | $40.0K | 0.00% | 00.0% | Unchanged |
| Chicago Partners Investment Group LLC | 12,398 | $39.0K | 0.00% | +12,398 | New |
| Metropolitan Life Insurance Co | 3,036 | $35.0K | 0.00% | −4,498−59.7% | Reduced |
| Royal Bank of Canada | 2,796 | $32.0K | 0.00% | −5,735−67.2% | Reduced |
| Great West Life Assurance Co | 2,363 | $29.0K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 2,538 | $29.0K | 0.00% | +2,538 | New |
| Sierra Capital LLC | 2,400 | $28.0K | 0.00% | 00.0% | Unchanged |
| Cutler Group LP | 1,836 | $21.0K | 0.00% | +1,836 | New |
| FourThought Financial, LLC | 1,776 | $20.0K | 0.00% | −383−17.7% | Reduced |
| Koshinski Asset Management, Inc. | 1,100 | $12.7K | 0.00% | +40+3.8% | Added |
| UBS Group AG | 500 | $6.00K | 0.00% | −103,080−99.5% | Reduced |
| Lindbrook Capital, LLC | 443 | $5.00K | 0.00% | +360+433.7% | Added |
| TCI Wealth Advisors, Inc. | 472 | $5.00K | 0.00% | +472 | New |
| The PNC Financial Services Group, Inc. | 350 | $4.00K | 0.00% | 00.0% | Unchanged |
| Toronto Dominion Bank | 335 | $4.00K | 0.00% | +335 | New |
| Aquatic Capital Management LLC | 300 | $3.00K | 0.00% | −3,700−92.5% | Reduced |
| Bessemer Group Inc | 251 | $3.00K | 0.00% | 00.0% | Unchanged |