RHYTHM PHARMACEUTICALS, INC. RYTM
CIK 0001649904 · CUSIP 76243J105
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | PRIMECAP MANAGEMENT CO/CA/ CIK 763212 · View history | $335.70M 7,747,591 shares | 0.25% | -305.06K(-3.80%)Reduced | SEC filing ↗ May 14, 2024 | ▾ |
| 02 | BlackRock Inc. CIK 1364742 · View history | $282.93M 6,529,646 shares | 0.01% | +177.90K(+2.80%)Added | SEC filing ↗ May 10, 2024 | ▾ |
| 03 | BAKER BROS. ADVISORS LP CIK 1263508 · View history | $277.24M 6,398,365 shares | 3.48% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 04 | RA CAPITAL MANAGEMENT, L.P. CIK 1346824 · Amended · View history | $230.97M 5,330,412 shares | 2.94% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 05 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $221.49M 5,111,601 shares | 0.05% | +63.67K(+1.30%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 06 | VANGUARD GROUP INC CIK 102909 · View history | $143.17M 3,304,146 shares | 0.00% | +77.21K(+2.40%)Added | SEC filing ↗ May 10, 2024 | ▾ |
| 07 | PERCEPTIVE ADVISORS LLC CIK 1224962 · Amended · View history | $141.63M 3,268,579 shares | 2.50% | +1.11M(+51.70%)Added | SEC filing ↗ Aug 6, 2024 | ▾ |
| 08 | STATE STREET CORP CIK 93751 · View history | $130.59M 3,013,838 shares | 0.01% | +807.82K(+36.60%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 09 | NEA Management Company, LLC CIK 1512848 · View history | $126.09M 2,909,956 shares | 7.83% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 10 | Frazier Life Sciences Management, L.P. CIK 1892134 · View history | $94.90M 2,190,179 shares | 4.00% | -181.13K(-7.60%)Reduced | SEC filing ↗ May 15, 2024 | ▾ |
| 11 | FEDERATED HERMES, INC. CIK 1056288 · View history | $71.98M 1,661,097 shares | 0.17% | -649.86K(-28.10%)Reduced | SEC filing ↗ May 14, 2024 | ▾ |
| 12 | Rock Springs Capital Management LP CIK 1595725 · View history | $65.99M 1,522,893 shares | 1.68% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2024 | ▾ |
| 13 | Polar Capital Holdings Plc CIK 1837309 · View history | $65.00M 1,500,000 shares | 0.34% | -250.00K(-14.30%)Reduced | SEC filing ↗ May 15, 2024 | ▾ |
| 14 | Pictet Asset Management Holding SA CIK 1993888 · View history | $52.50M 1,211,679 shares | 0.06% | +47.72K(+4.10%)Added | SEC filing ↗ May 14, 2024 | ▾ |
| 15 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $51.17M 1,180,705 shares | 0.00% | +61.58K(+5.50%)Added | SEC filing ↗ May 13, 2024 | ▾ |
| 16 | COMMODORE CAPITAL LP CIK 1831942 · View history | $45.50M 1,050,000 shares | 3.04% | -500.00K(-32.30%)Reduced | SEC filing ↗ May 15, 2024 | ▾ |
| 17 | Driehaus Capital Management LLC CIK 938206 · View history | $37.07M 855,505 shares | 0.37% | +256.60K(+42.80%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 18 | Checkpoint Capital L.P. CIK 1977548 · View history | $35.77M 825,500 shares | 23.91% | +95.50K(+13.10%)Added | SEC filing ↗ May 15, 2024 | ▾ |
| 19 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND CIK 1535845 · View history | $31.66M 730,643 shares | 0.11% | +578.80K(+381.20%)Added | SEC filing ↗ May 13, 2024 | ▾ |
| 20 | ORBIMED ADVISORS LLC CIK 1055951 · View history | $30.54M 704,842 shares | 0.56% | +168.20K(+31.30%)Added | SEC filing ↗ May 15, 2024 | ▾ |
Showing 20 / 169 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 169 reporting institutions.
This page includes 20 of 169 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 169 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"76243J105","quarter":"2024Q1","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.