Rhythm Pharmaceuticals Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 05/15/2026 | 6.67 M | $579.81 M | 0.00% | 9.97% |
| BLACKROCK, INC. | 05/13/2026 | 6.24 M | $542.45 M | -0.96% | 9.33% |
| BAKER BROS. ADVISORS LP | 05/15/2026 | 5.60 M | $487.42 M | 0.00% | 8.38% |
| PRIMECAP MANAGEMENT CO/CA/ | 05/11/2026 | 3.42 M | $297.22 M | -1.76% | 5.11% |
| 05/08/2026 | 3.04 M | $264.45 M | 100.00% | 4.55% | |
| 05/15/2026 | 2.97 M | $258.11 M | 100.00% | 4.44% | |
| PERCEPTIVE ADVISORS LLC | 05/29/2026 | 2.37 M | $206.45 M | -6.78% | 3.55% |
| STATE STREET CORP | 05/15/2026 | 2.27 M | $197.58 M | 3.33% | 3.40% |
| GOLDMAN SACHS GROUP INC | 05/15/2026 | 1.97 M | $170.93 M | 7.35% | 2.94% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 05/11/2026 | 1.93 M | $167.78 M | 52.24% | 2.88% |
| FMR LLC | 05/15/2026 | 1.69 M | $146.95 M | -0.98% | 2.53% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 05/15/2026 | 1.65 M | $143.93 M | 6.02% | 2.47% |
| POLAR CAPITAL HOLDINGS PLC | 05/15/2026 | 1.62 M | $140.51 M | 36.29% | 2.42% |
| JPMORGAN CHASE & CO | 05/13/2026 | 1.55 M | $120.02 M | 9.11% | 2.32% |
| CITADEL ADVISORS LLC | 05/15/2026 | 1.42 M | $123.38 M | 825.25% | 2.12% |
| GEODE CAPITAL MANAGEMENT, LLC | 05/15/2026 | 1.42 M | $123.20 M | 2.95% | 2.12% |
| FEDERATED HERMES, INC. | 05/11/2026 | 1.29 M | $111.87 M | -20.79% | 1.92% |
| CHECKPOINT CAPITAL L.P. | 05/15/2026 | 1.23 M | $106.73 M | 23.68% | 1.84% |
| CAPITAL RESEARCH GLOBAL INVESTORS | 05/13/2026 | 1.12 M | $97.01 M | 13.23% | 1.67% |
| JANUS HENDERSON GROUP PLC | 05/18/2026 | 918.15 K | $79.89 M | -18.47% | 1.37% |
| ALLIANCEBERNSTEIN L.P. | 05/15/2026 | 910.41 K | $97.45 M | -2.13% | 1.36% |
| POINT72 ASSET MANAGEMENT, L.P. | 05/15/2026 | 846.80 K | $73.65 M | 97.20% | 1.27% |
| WOODLINE PARTNERS LP | 05/15/2026 | 758.89 K | $66.00 M | 10.18% | 1.13% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 05/15/2026 | 725.74 K | $63.12 M | 16.76% | 1.09% |
| SIREN, L.L.C. | 05/14/2026 | 725.51 K | $63.10 M | 45.11% | 1.08% |
| MORGAN STANLEY | 05/15/2026 | 703.98 K | $61.23 M | 8.07% | 1.05% |
| ROCK SPRINGS CAPITAL MANAGEMENT LP | 05/15/2026 | 689.75 K | $59.99 M | -0.76% | 1.03% |
| PICTET ASSET MANAGEMENT HOLDING SA | 04/22/2026 | 667.05 K | $57.33 M | 8.52% | 1.00% |
| BANK OF AMERICA CORP /DE/ | 05/18/2026 | 628.67 K | $54.68 M | 180.05% | 0.94% |
| FRANKLIN RESOURCES INC | 05/13/2026 | 626.85 K | $54.52 M | -9.90% | 0.94% |
| CLEARBRIDGE INVESTMENTS, LLC | 05/13/2026 | 609.44 K | $53.00 M | 20.42% | 0.91% |
| INTEGRAL HEALTH ASSET MANAGEMENT, LLC | 05/15/2026 | 600.00 K | $52.18 M | 26.32% | 0.90% |
| UBS ASSET MANAGEMENT AMERICAS INC | 05/13/2026 | 541.45 K | $47.09 M | -1.38% | 0.81% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 05/15/2026 | 526.46 K | $45.79 M | -1.12% | 0.79% |
| NORTHERN TRUST CORP | 05/14/2026 | 498.51 K | $43.36 M | 2.11% | 0.75% |
| LOOMIS SAYLES & CO L P | 05/14/2026 | 465.10 K | $40.45 M | -7.70% | 0.70% |
| CANDRIAM S.C.A. | 04/30/2026 | 464.34 K | $40.38 M | 61.28% | 0.69% |
| MILLENNIUM MANAGEMENT LLC | 05/15/2026 | 451.83 K | $39.30 M | 141.99% | 0.68% |
| SOFINNOVA INVESTMENTS, INC. | 05/15/2026 | 450.10 K | $39.14 M | 65.85% | 0.67% |
| LOGOS GLOBAL MANAGEMENT LP | 05/15/2026 | 450.00 K | $39.14 M | 136.84% | 0.67% |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 05/15/2026 | 436.55 K | $37.97 M | -66.03% | 0.65% |
| VANGUARD FIDUCIARY TRUST CO | 05/08/2026 | 421.91 K | $36.69 M | 100.00% | 0.63% |
| ARTISAN PARTNERS LIMITED PARTNERSHIP | 05/13/2026 | 390.67 K | $33.98 M | 48.21% | 0.58% |
| AMERIPRISE FINANCIAL INC | 05/15/2026 | 383.96 K | $33.39 M | 47.02% | 0.57% |
| INVESCO LTD. | 05/12/2026 | 364.31 K | $31.68 M | 25.13% | 0.54% |
| LORD, ABBETT & CO. LLC | 05/14/2026 | 348.95 K | $30.35 M | -43.68% | 0.52% |
| ORBIMED ADVISORS LLC | 05/15/2026 | 314.10 K | $27.32 M | 30.98% | 0.47% |
| BRAIDWELL LP | 05/15/2026 | 310.63 K | $27.02 M | 100.00% | 0.46% |
| SILVERARC CAPITAL MANAGEMENT, LLC | 05/14/2026 | 306.00 K | $26.61 M | 125.08% | 0.46% |
| BANK OF NEW YORK MELLON CORP | 05/05/2026 | 293.30 K | $25.51 M | -2.58% | 0.44% |
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Rhythm Pharmaceuticals Inc. institutional Ownership - FAQ's
During the previous two years, 355 institutional investors and hedge funds held shares of Rhythm Pharmaceuticals Inc.. The most heavily invested institutionals were:
RA CAPITAL MANAGEMENT, L.P.: 6.67 M
BlackRock, Inc.: 6.24 M
BAKER BROS. ADVISORS LP: 5.6 M
PRIMECAP MANAGEMENT CO/CA/: 3.42 M
PERCEPTIVE ADVISORS LLC: 2.37 M
STATE STREET CORP: 2.27 M
110.01% of Rhythm Pharmaceuticals Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 80.84 M shares in the last 24 months. This purchase volume represents approximately $7.52 B in transactions.