Rhythm Pharmaceuticals, Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | 11/14/2025 | 419.10 M | $288.39 M | 17,230.57% | 658.10% |
| BLACKROCK, INC. | 11/12/2025 | 6.30 M | $636.46 M | 0.55% | 9.90% |
| RA CAPITAL MANAGEMENT, L.P. | 11/14/2025 | 5.68 M | $573.76 M | 2.16% | 8.92% |
| BAKER BROS. ADVISORS LP | 11/14/2025 | 5.60 M | $566.00 M | 0.00% | 8.80% |
| VANGUARD GROUP INC | 11/07/2025 | 5.00 M | $504.59 M | 39.21% | 7.85% |
| PRIMECAP MANAGEMENT CO/CA/ | 11/12/2025 | 4.26 M | $430.51 M | -12.61% | 6.69% |
| NEA MANAGEMENT COMPANY, LLC | 11/14/2025 | 2.91 M | $293.88 M | 0.00% | 4.57% |
| FMR LLC | 11/13/2025 | 2.15 M | $216.64 M | 9.82% | 3.37% |
| STATE STREET CORP | 11/14/2025 | 2.03 M | $204.87 M | 6.35% | 3.19% |
| GOLDMAN SACHS GROUP INC | 11/14/2025 | 1.89 M | $191.24 M | 9.23% | 2.97% |
| FEDERATED HERMES, INC. | 11/03/2025 | 1.73 M | $174.50 M | 2.45% | 2.71% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 11/14/2025 | 1.40 M | $141.38 M | 4.36% | 2.20% |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 11/14/2025 | 1.38 M | $139.75 M | 8.96% | 2.17% |
| GEODE CAPITAL MANAGEMENT, LLC | 11/12/2025 | 1.36 M | $137.65 M | 3.93% | 2.14% |
| POLAR CAPITAL HOLDINGS PLC | 11/14/2025 | 1.24 M | $125.73 M | -0.47% | 1.95% |
| JPMORGAN CHASE & CO | 11/26/2025 | 1.19 M | $119.98 M | 51.62% | 1.87% |
| JANUS HENDERSON GROUP PLC | 11/14/2025 | 1.16 M | $117.24 M | -17.78% | 1.82% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 11/12/2025 | 1.07 M | $107.96 M | -34.40% | 1.68% |
| ALKEON CAPITAL MANAGEMENT LLC | 11/14/2025 | 1.02 M | $102.78 M | 0.00% | 1.60% |
| ALLIANCEBERNSTEIN L.P. | 11/14/2025 | 979.68 K | $98.94 M | 1,493.76% | 1.54% |
| CHECKPOINT CAPITAL L.P. | 11/14/2025 | 763.71 K | $77.13 M | -27.95% | 1.20% |
| ROCK SPRINGS CAPITAL MANAGEMENT LP | 11/14/2025 | 717.10 K | $72.42 M | -16.73% | 1.13% |
| PICTET ASSET MANAGEMENT HOLDING SA | 11/18/2025 | 683.02 K | $68.95 M | 64.14% | 1.07% |
| CAPITAL RESEARCH GLOBAL INVESTORS | 11/13/2025 | 598.25 K | $60.42 M | 100.00% | 0.94% |
| WOODLINE PARTNERS LP | 11/14/2025 | 580.18 K | $58.59 M | 12.79% | 0.91% |
| LORD, ABBETT & CO. LLC | 11/13/2025 | 575.98 K | $58.17 M | 181.97% | 0.90% |
| FRANKLIN RESOURCES INC | 11/13/2025 | 567.78 K | $57.34 M | 4.41% | 0.89% |
| RENAISSANCE TECHNOLOGIES LLC | 11/13/2025 | 546.59 K | $55.20 M | 73.58% | 0.86% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 11/14/2025 | 544.00 K | $54.94 M | 59.53% | 0.85% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 11/10/2025 | 527.92 K | $53.31 M | 14.41% | 0.83% |
| LOOMIS SAYLES & CO L P | 11/13/2025 | 527.44 K | $53.27 M | -10.82% | 0.83% |
| NORTHERN TRUST CORP | 11/14/2025 | 510.91 K | $51.60 M | 0.13% | 0.80% |
| SIREN, L.L.C. | 11/13/2025 | 499.98 K | $50.49 M | 22.02% | 0.79% |
| CLEARBRIDGE INVESTMENTS, LLC | 11/13/2025 | 484.73 K | $48.95 M | 55.14% | 0.76% |
| MORGAN STANLEY | 11/14/2025 | 465.19 K | $46.98 M | -11.30% | 0.73% |
| OPALEYE MANAGEMENT INC. | 11/14/2025 | 461.70 K | $46.63 M | -2.80% | 0.73% |
| UBS ASSET MANAGEMENT AMERICAS INC | 11/14/2025 | 437.47 K | $44.18 M | 92.19% | 0.69% |
| UBS GROUP AG | 11/13/2025 | 420.34 K | $42.45 M | 66.42% | 0.66% |
| JENNISON ASSOCIATES LLC | 10/30/2025 | 411.55 K | $41.56 M | 100.00% | 0.65% |
| SILVERARC CAPITAL MANAGEMENT, LLC | 11/12/2025 | 370.00 K | $37.37 M | -7.68% | 0.58% |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 11/14/2025 | 368.26 K | $37.19 M | 8.70% | 0.58% |
| BALYASNY ASSET MANAGEMENT L.P. | 11/14/2025 | 350.01 K | $35.35 M | 547.11% | 0.55% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 11/14/2025 | 259.60 K | $26.22 M | 331.23% | 0.41% |
| SOFINNOVA INVESTMENTS, INC. | 11/14/2025 | 246.97 K | $24.94 M | -57.86% | 0.39% |
| QUBE RESEARCH & TECHNOLOGIES LTD | 11/14/2025 | 238.82 K | $24.12 M | -0.63% | 0.38% |
| ARTISAN PARTNERS LIMITED PARTNERSHIP | 11/12/2025 | 236.84 K | $23.92 M | 35.74% | 0.37% |
| HOOD RIVER CAPITAL MANAGEMENT LLC | 11/14/2025 | 235.84 K | $23.82 M | -56.62% | 0.37% |
| BANK OF AMERICA CORP /DE/ | 11/14/2025 | 233.15 K | $23.55 M | 4.95% | 0.37% |
| ASSENAGON ASSET MANAGEMENT S.A. | 10/07/2025 | 224.13 K | $22.63 M | -5.83% | 0.35% |
| BNP PARIBAS ARBITRAGE, SNC | 11/13/2025 | 223.68 K | $22.59 M | 118.78% | 0.35% |
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Rhythm Pharmaceuticals, Inc. institutional Ownership - FAQ's
During the previous two years, 302 institutional investors and hedge funds held shares of Rhythm Pharmaceuticals, Inc.. The most heavily invested institutionals were:
PERCEPTIVE ADVISORS LLC: 419.1 M
BlackRock, Inc.: 6.3 M
RA CAPITAL MANAGEMENT, L.P.: 5.68 M
BAKER BROS. ADVISORS LP: 5.6 M
VANGUARD GROUP INC: 5 M
PRIMECAP MANAGEMENT CO/CA/: 4.26 M
765.58% of Rhythm Pharmaceuticals, Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 494.89 M shares in the last 24 months. This purchase volume represents approximately $49.00 B in transactions.