Fund shareholders of Rhythm Pharmaceuticals Inc
ISIN US76243J1051 · United States · LEI 529900JPNWXQ8DPLA551
- Fund shareholders
- 316
- Of which ETFs
- 52 264 other funds
- Value held
- 2.3B $ 18.2M SEK · 65.4K €
- Share of capital
- 39.3 % of 68.9M shares on Aug 1, 2026
316 funds hold this company. This table lists the 315 that declare it in a regulatory filing. 1 more fund publishes its holdings in its own report. It is not in the table.
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2,176,619 | 189.3M $ | 0.01 % | 3.16 % | as of Mar 31, 2026 ↗ |
| PRIMECAP Odyssey Aggressive Growth Fund PRIMECAP Odyssey Funds | 2,123,359 | 172.8M $ | 2.55 % | 3.08 % | as of Apr 30, 2026 ↗ |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1,574,414 | 136.9M $ | 0.08 % | 2.29 % | as of Mar 31, 2026 ↗ |
| iShares Russell 2000 ETF iShares Trust | 1,292,397 | 112.4M $ | 0.16 % | 1.88 % | as of Mar 31, 2026 ↗ |
| PRIMECAP Odyssey Growth Fund PRIMECAP Odyssey Funds | 1,095,402 | 89.1M $ | 1.64 % | 1.59 % | as of Apr 30, 2026 ↗ |
| SMALLCAP World Fund Inc SMALLCAP World Fund Inc | 1,079,599 | 93.9M $ | 0.12 % | 1.57 % | as of Mar 31, 2026 ↗ |
| State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR SERIES TRUST | 941,162 | 81.9M $ | 1.10 % | 1.37 % | as of Mar 31, 2026 ↗ |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 880,146 | 76.5M $ | 0.20 % | 1.28 % | as of Mar 31, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 678,467 | 59M $ | 0.07 % | 0.99 % | as of Mar 31, 2026 ↗ |
| JPMorgan Mid Cap Growth Fund JPMorgan Trust II | 597,190 | 51.9M $ | 0.46 % | 0.87 % | as of Mar 31, 2026 ↗ |
| Federated Hermes Kaufmann Small Cap Fund Federated Hermes Equity Funds | 592,000 | 48.2M $ | 1.67 % | 0.86 % | as of Apr 30, 2026 ↗ |
| Federated Hermes Kaufmann Fund Federated Hermes Equity Funds | 560,500 | 45.6M $ | 0.98 % | 0.81 % | as of Apr 30, 2026 ↗ |
| BlackRock Health Sciences Opportunities Portfolio BlackRock Funds | 538,793 | 50M $ | 0.76 % | 0.78 % | as of Feb 27, 2026 ↗ |
| Fidelity Small Cap Index Fund Fidelity Salem Street Trust | 523,363 | 42.6M $ | 0.13 % | 0.76 % | as of Apr 30, 2026 ↗ |
| T. Rowe Price New Horizons Fund, Inc. T. ROWE PRICE NEW HORIZONS FUND, INC. | 496,569 | 43.2M $ | 0.34 % | 0.72 % | as of Mar 31, 2026 ↗ |
| iShares Biotechnology ETF iShares Trust | 474,539 | 41.3M $ | 0.51 % | 0.69 % | as of Mar 31, 2026 ↗ |
| Harbor Small Cap Growth Fund HARBOR FUNDS | 437,490 | 35.6M $ | 1.38 % | 0.64 % | as of Apr 30, 2026 ↗ |
| iShares Russell 2000 Growth ETF iShares Trust | 431,261 | 37.5M $ | 0.31 % | 0.63 % | as of Mar 31, 2026 ↗ |
| Fidelity Small Cap Growth Fund Fidelity Securities Fund | 410,088 | 33.4M $ | 0.40 % | 0.60 % | as of Apr 30, 2026 ↗ |
| VANGUARD EXPLORER FUND VANGUARD EXPLORER FUND | 377,615 | 30.7M $ | 0.14 % | 0.55 % | as of Apr 30, 2026 ↗ |
| T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC. | 358,073 | 31.1M $ | 0.38 % | 0.52 % | as of Mar 31, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 316,986 | 29.4M $ | 0.07 % | 0.46 % | as of Feb 28, 2026 ↗ |
| Schwab U.S. Small-Cap ETF SCHWAB STRATEGIC TRUST | 295,277 | 27.4M $ | 0.13 % | 0.43 % | as of Feb 28, 2026 ↗ |
| Putnam Small Cap Growth Fund Putnam Funds Trust | 276,855 | 24.1M $ | 0.89 % | 0.40 % | as of Mar 31, 2026 ↗ |
| VANGUARD RUSSELL 2000 INDEX FUND VANGUARD SCOTTSDALE FUNDS | 262,242 | 24.3M $ | 0.16 % | 0.38 % | as of Feb 28, 2026 ↗ |
| Loomis Sayles Small Cap Growth Fund LOOMIS SAYLES FUNDS II | 260,101 | 22.6M $ | 1.18 % | 0.38 % | as of Mar 31, 2026 ↗ |
| JPMorgan Small Cap Growth Fund JPMorgan Trust II | 255,372 | 22.2M $ | 1.02 % | 0.37 % | as of Mar 31, 2026 ↗ |
| T. Rowe Price Health Sciences Fund, Inc. T. ROWE PRICE HEALTH SCIENCES FUND, INC. | 241,658 | 21M $ | 0.19 % | 0.35 % | as of Mar 31, 2026 ↗ |
| AB Small Cap Growth Portfolio AB CAP FUND, INC. | 235,500 | 19.2M $ | 0.66 % | 0.34 % | as of Apr 30, 2026 ↗ |
| ClearBridge Small Cap Growth Fund Legg Mason Partners Investment Trust | 226,393 | 18.4M $ | 0.92 % | 0.33 % | as of Apr 30, 2026 ↗ |
| Fidelity Small Cap Growth K6 Fund Fidelity Securities Fund | 207,612 | 16.9M $ | 0.39 % | 0.30 % | as of Apr 30, 2026 ↗ |
| Fidelity Stock Selector Small Cap Fund Fidelity Capital Trust | 202,143 | 16.4M $ | 0.24 % | 0.29 % | as of Apr 30, 2026 ↗ |
| LORD ABBETT DEVELOPING GROWTH FUND INC LORD ABBETT DEVELOPING GROWTH FUND, INC. | 201,474 | 16.4M $ | 0.74 % | 0.29 % | as of Apr 30, 2026 ↗ |
| AB DISCOVERY GROWTH FUND, INC. AB DISCOVERY GROWTH FUND, INC. | 196,524 | 16M $ | 0.59 % | 0.29 % | as of Apr 30, 2026 ↗ |
| VANGUARD HEALTH CARE INDEX FUND VANGUARD WORLD FUND | 169,467 | 15.7M $ | 0.08 % | 0.25 % | as of Feb 28, 2026 ↗ |
| JNL/JPMorgan MidCap Growth Fund JNL Series Trust | 163,437 | 14.2M $ | 0.46 % | 0.24 % | as of Mar 31, 2026 ↗ |
| Janus Henderson Global Life Sciences Fund JANUS INVESTMENT FUND | 160,804 | 14M $ | 0.27 % | 0.23 % | as of Mar 31, 2026 ↗ |
| Fidelity Series Small Cap Opportunities Fund Fidelity Securities Fund | 142,424 | 11.6M $ | 0.23 % | 0.21 % | as of Apr 30, 2026 ↗ |
| Invesco Discovery Fund AIM Counselor Series Trust (Invesco Counselor Series Trust) | 134,236 | 12.4M $ | 0.19 % | 0.19 % | as of Feb 28, 2026 ↗ |
| Artisan Small Cap Fund Artisan Partners Funds Inc. | 130,838 | 11.4M $ | 1.28 % | 0.19 % | as of Mar 31, 2026 ↗ |
| Hood River Small-Cap Growth Fund Manager Directed Portfolios | 129,034 | 11.2M $ | 0.22 % | 0.19 % | as of Mar 31, 2026 ↗ |
| Voya Small Cap Growth Fund Voya Equity Trust | 126,495 | 11.7M $ | 0.63 % | 0.18 % | as of Feb 28, 2026 ↗ |
| Columbia Acorn Fund COLUMBIA ACORN TRUST | 124,824 | 10.9M $ | 0.48 % | 0.18 % | as of Mar 31, 2026 ↗ |
| Fidelity Advisor Biotechnology Fund Fidelity Advisor Series VII | 117,433 | 9.6M $ | 0.50 % | 0.17 % | as of Apr 30, 2026 ↗ |
| Schwab Small-Cap Index Fund SCHWAB CAPITAL TRUST | 115,858 | 9.4M $ | 0.13 % | 0.17 % | as of Apr 30, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 113,591 | 10.5M $ | 0.01 % | 0.16 % | as of Feb 28, 2026 ↗ |
| Global Small Capitalization Fund AMERICAN FUNDS INSURANCE SERIES | 110,926 | 9.6M $ | 0.34 % | 0.16 % | as of Mar 31, 2026 ↗ |
| Putnam Global Health Care Fund Putnam Global Health Care Fund | 107,800 | 10M $ | 0.63 % | 0.16 % | as of Feb 28, 2026 ↗ |
| Bridge Builder Tax Managed Small/Mid Cap Fund Bridge Builder Trust | 104,183 | 9.1M $ | 0.30 % | 0.15 % | as of Mar 31, 2026 ↗ |
| Columbia Small Cap Growth Fund COLUMBIA FUNDS SERIES TRUST I | 101,297 | 9.4M $ | 0.29 % | 0.15 % | as of Feb 28, 2026 ↗ |
| Select Biotechnology Portfolio Fidelity Select Portfolios | 99,803 | 9.3M $ | 0.17 % | 0.14 % | as of Feb 28, 2026 ↗ |
| Fidelity Enhanced Small Cap ETF Fidelity Covington Trust | 90,725 | 7.9M $ | 0.19 % | 0.13 % | as of Mar 31, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 89,756 | 8.3M $ | 0.01 % | 0.13 % | as of Feb 28, 2026 ↗ |
| EQ/AB Small Cap Growth Portfolio EQ Advisors Trust | 88,373 | 7.7M $ | 0.41 % | 0.13 % | as of Mar 31, 2026 ↗ |
| Master Small Cap Index Series Quantitative Master Series LLC | 85,945 | 7.5M $ | 0.16 % | 0.12 % | as of Mar 31, 2026 ↗ |
| JPMorgan Mid Cap Equity Fund JPMorgan Trust I | 83,049 | 7.2M $ | 0.13 % | 0.12 % | as of Mar 31, 2026 ↗ |
| JPMorgan Small Cap Blend Fund JPMorgan Trust I | 82,444 | 7.2M $ | 0.50 % | 0.12 % | as of Mar 31, 2026 ↗ |
| iShares Core S&P Total U.S. Stock Market ETF iShares Trust | 77,493 | 6.7M $ | 0.01 % | 0.11 % | as of Mar 31, 2026 ↗ |
| Goldman Sachs Small/Mid Cap Growth Fund Goldman Sachs Trust | 77,319 | 7.2M $ | 0.58 % | 0.11 % | as of Feb 28, 2026 ↗ |
| SmallCap Growth Fund I Principal Funds, Inc | 70,242 | 5.7M $ | 0.24 % | 0.10 % | as of Apr 30, 2026 ↗ |
| Nuveen Small Cap Blend Index Fund TIAA-CREF Funds | 63,562 | 5.2M $ | 0.13 % | 0.09 % | as of Apr 30, 2026 ↗ |
| Driehaus Small Cap Growth Fund Driehaus Mutual Funds | 59,849 | 5.2M $ | 0.45 % | 0.09 % | as of Mar 31, 2026 ↗ |
| Fidelity Series Small Cap Core Fund Fidelity Concord Street Trust | 59,100 | 4.8M $ | 0.30 % | 0.09 % | as of Apr 30, 2026 ↗ |
| Small Cap Dynamic Growth Fund John Hancock Funds II | 58,980 | 5.5M $ | 1.06 % | 0.09 % | as of Feb 28, 2026 ↗ |
| BlackRock Advantage Small Cap Core Fund BlackRock Funds | 57,331 | 5.3M $ | 0.12 % | 0.08 % | as of Feb 27, 2026 ↗ |
| JNL Multi-Manager Small Cap Growth Fund JNL Series Trust | 56,351 | 4.9M $ | 0.25 % | 0.08 % | as of Mar 31, 2026 ↗ |
| BNY Mellon Small/Mid Cap Growth Fund BNY Mellon Investment Funds I | 56,319 | 4.9M $ | 0.64 % | 0.08 % | as of Mar 31, 2026 ↗ |
| Mercer US Small/Mid Cap Equity Fund Mercer Funds | 55,538 | 4.8M $ | 0.28 % | 0.08 % | as of Mar 31, 2026 ↗ |
| EQ/2000 Managed Volatility Portfolio EQ Advisors Trust | 55,268 | 4.8M $ | 0.14 % | 0.08 % | as of Mar 31, 2026 ↗ |
| Direxion Daily S&P Biotech Bull 3X Shares Direxion Shares ETF Trust | 53,930 | 4.4M $ | 0.85 % | 0.08 % | as of Apr 30, 2026 ↗ |
| Mid Cap Growth Stock Portfolio NORTHWESTERN MUTUAL SERIES FUND INC | 50,223 | 4.4M $ | 0.46 % | 0.07 % | as of Mar 31, 2026 ↗ |
| ClearBridge Variable Small Cap Growth Portfolio Legg Mason Partners Variable Equity Trust | 49,200 | 4.3M $ | 1.08 % | 0.07 % | as of Mar 31, 2026 ↗ |
| VANGUARD RUSSELL 2000 GROWTH INDEX FUND VANGUARD SCOTTSDALE FUNDS | 48,463 | 4.5M $ | 0.31 % | 0.07 % | as of Feb 28, 2026 ↗ |
| Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust | 47,456 | 4.1M $ | 0.04 % | 0.07 % | as of Mar 31, 2026 ↗ |
| T.Rowe Price Small Cap Growth Portfolio Brighthouse Funds Trust II | 45,827 | 4M $ | 0.38 % | 0.07 % | as of Mar 31, 2026 ↗ |
| Federated Hermes MDT Small Cap Core Fund Federated Hermes MDT Series | 45,787 | 3.7M $ | 0.20 % | 0.07 % | as of Apr 30, 2026 ↗ |
| Nuveen Equity Index Fund TIAA-CREF Funds | 45,125 | 3.7M $ | 0.01 % | 0.07 % | as of Apr 30, 2026 ↗ |
| iShares U.S. Small-Cap Equity Factor ETF iShares Trust | 44,740 | 3.6M $ | 0.10 % | 0.06 % | as of Apr 30, 2026 ↗ |
| Loomis Sayles Small Cap Growth Portfolio Brighthouse Funds Trust II | 41,951 | 3.6M $ | 1.15 % | 0.06 % | as of Mar 31, 2026 ↗ |
| Small Cap Core Portfolio Bernstein Fund Inc | 41,480 | 3.6M $ | 0.51 % | 0.06 % | as of Mar 31, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 40,455 | 3.8M $ | 0.02 % | 0.06 % | as of Feb 28, 2026 ↗ |
| Fidelity Small Cap Growth Index Fund Fidelity Salem Street Trust | 40,238 | 3.5M $ | 0.31 % | 0.06 % | as of Mar 31, 2026 ↗ |
| VANGUARD TOTAL WORLD STOCK INDEX FUND VANGUARD INTERNATIONAL EQUITY INDEX FUNDS | 40,037 | 3.3M $ | 0.00 % | 0.06 % | as of Apr 30, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 38,356 | 3.3M $ | 0.01 % | 0.06 % | as of Mar 31, 2026 ↗ |
| Multi-Manager Small Cap Equity Strategies Fund COLUMBIA FUNDS SERIES TRUST I | 37,924 | 3.5M $ | 0.29 % | 0.06 % | as of Feb 28, 2026 ↗ |
| Neuberger Small Cap Growth Fund NEUBERGER BERMAN EQUITY FUNDS | 37,642 | 3.5M $ | 0.72 % | 0.05 % | as of Feb 28, 2026 ↗ |
| Column Small Cap Select Fund Trust for Professional Managers | 37,341 | 3.5M $ | 0.20 % | 0.05 % | as of Feb 28, 2026 ↗ |
| Schwab Total Stock Market Index Fund SCHWAB CAPITAL TRUST | 36,169 | 2.9M $ | 0.01 % | 0.05 % | as of Apr 30, 2026 ↗ |
| Tax-Managed U.S. Mid & Small Cap Fund RUSSELL INVESTMENT CO | 35,474 | 2.9M $ | 0.14 % | 0.05 % | as of Apr 30, 2026 ↗ |
| Schwab U.S. Broad Market ETF SCHWAB STRATEGIC TRUST | 35,093 | 3.3M $ | 0.01 % | 0.05 % | as of Feb 28, 2026 ↗ |
| LVIP SSGA Small-Cap Index Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 35,000 | 3M $ | 0.16 % | 0.05 % | as of Mar 31, 2026 ↗ |
| Strategic Advisers Fidelity U.S. Total Stock Fund Fidelity Rutland Square Trust II | 34,100 | 3.2M $ | 0.00 % | 0.05 % | as of Feb 28, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 33,173 | 2.9M $ | 0.01 % | 0.05 % | as of Mar 31, 2026 ↗ |
| SA JPMorgan Mid-Cap Growth Portfolio SUNAMERICA SERIES TRUST | 32,431 | 2.6M $ | 0.40 % | 0.05 % | as of Apr 30, 2026 ↗ |
| Victory Small Cap Stock Fund Victory Portfolios III | 32,272 | 2.6M $ | 0.29 % | 0.05 % | as of Apr 30, 2026 ↗ |
| Health Sciences Portfolio PACIFIC SELECT FUND | 32,248 | 2.8M $ | 0.79 % | 0.05 % | as of Mar 31, 2026 ↗ |
| VANGUARD U.S. MOMENTUM FACTOR ETF VANGUARD WELLINGTON FUND | 32,011 | 3M $ | 0.21 % | 0.05 % | as of Feb 28, 2026 ↗ |
| Fidelity ZERO Total Market Index Fund Fidelity Concord Street Trust | 31,405 | 2.6M $ | 0.01 % | 0.05 % | as of Apr 30, 2026 ↗ |
| Invesco Health Care Fund AIM Investment Funds (Invesco Investment Funds) | 30,683 | 2.5M $ | 0.22 % | 0.04 % | as of Apr 30, 2026 ↗ |
| EQ/Small Company Index Portfolio EQ Advisors Trust | 30,580 | 2.7M $ | 0.17 % | 0.04 % | as of Mar 31, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table ranks funds by number of shares. This one ranks them by the weight of the company in each fund.
| Fund | Weight in fund | |
|---|---|---|
| Harbor Health Care ETF Harbor ETF Trust | 3.79 % | as of Apr 30, 2026 ↗ |
| PRIMECAP Odyssey Aggressive Growth Fund PRIMECAP Odyssey Funds | 2.55 % | as of Apr 30, 2026 ↗ |
| Pictet - Biotech Pictet Asset Management (Europe) S.A. | 2.35 % | as of Sep 30, 2025 ↗ |
| AlphaCentric Life Sciences and Healthcare Fund MUTUAL FUND SERIES TRUST | 2.06 % | as of Mar 31, 2026 ↗ |
| A&P LIFESCIENCE FUND, FI WELZIA MANAGEMENT, SGIIC, S.A. | 1.78 % | as of Dec 31, 2025 ↗ |
| Federated Hermes Kaufmann Small Cap Fund Federated Hermes Equity Funds | 1.67 % | as of Apr 30, 2026 ↗ |
| PRIMECAP Odyssey Growth Fund PRIMECAP Odyssey Funds | 1.64 % | as of Apr 30, 2026 ↗ |
| Harbor Human Capital Factor US Small Cap ETF Harbor ETF Trust | 1.58 % | as of Apr 30, 2026 ↗ |
| Roundhill GLP-1 & Weight Loss ETF Roundhill ETF Trust | 1.43 % | as of Mar 31, 2026 ↗ |
| Harbor Small Cap Growth Fund HARBOR FUNDS | 1.38 % | as of Apr 30, 2026 ↗ |
Quarter after quarter
Each row is one quarter of SEC filings, newest first. The change compares each quarter with the one before.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q2 | 312 | -8 | 27,005,722 | -0.8 % |
| 2026Q1 | 320 | +21 | 27,219,676 | +6.4 % |
| 2025Q4 | 299 | +46 | 25,593,008 | +10.8 % |
| 2025Q3 | 253 | +17 | 23,094,406 | +3.7 % |
| 2025Q2 | 236 | +33 | 22,276,688 | +5.5 % |
| 2025Q1 | 203 | +20 | 21,124,445 | +2.2 % |
| 2024Q4 | 183 | +5 | 20,660,389 | +3.1 % |
| 2024Q3 | 178 | +6 | 20,045,901 | -6.2 % |
| 2024Q2 | 172 | +11 | 21,362,968 | -2.5 % |
| 2024Q1 | 161 | +12 | 21,919,153 | +0.9 % |
| 2023Q4 | 149 | 21,715,976 |
Institutional managers
277 managers declare this company to the SEC (Form 13F). The table shows the 25 largest.
| Manager | Shares | Value | |
|---|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. | 6,666,837 | 579.8M $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 6,237,151 | 542.4M $ | as of Mar 31, 2026 |
| BAKER BROS. ADVISORS LP | 5,604,483 | 487.4M $ | as of Mar 31, 2026 |
| PRIMECAP MANAGEMENT CO/CA/ | 3,417,509 | 297.2M $ | as of Mar 31, 2026 |
| PERCEPTIVE ADVISORS LLC | 2,373,795 | 206.4M $ | as of Mar 31, 2026 |
| STATE STREET CORP | 2,271,851 | 197.6M $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 1,965,432 | 170.9M $ | as of Mar 31, 2026 |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1,929,123 | 167.8M $ | as of Mar 31, 2026 |
| FMR LLC | 1,689,671 | 147M $ | as of Mar 31, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1,654,876 | 143.9K $ | as of Mar 31, 2026 |
| Polar Capital Holdings Plc | 1,615,586 | 140.5M $ | as of Mar 31, 2026 |
| JPMORGAN CHASE & CO | 1,553,644 | 120M $ | as of Mar 31, 2026 |
| CITADEL ADVISORS LLC | 1,418,619 | 123.4M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 1,416,269 | 123.2M $ | as of Mar 31, 2026 |
| FEDERATED HERMES, INC. | 1,286,303 | 111.9M $ | as of Mar 31, 2026 |
| Checkpoint Capital L.P. | 1,227,200 | 106.7M $ | as of Mar 31, 2026 |
| Capital Research Global Investors | 1,115,460 | 97M $ | as of Mar 31, 2026 |
| JANUS HENDERSON GROUP PLC | 918,153 | 79.9M $ | as of Mar 31, 2026 |
| ALLIANCEBERNSTEIN L.P. | 910,413 | 97.5M $ | as of Mar 31, 2026 |
| Point72 Asset Management, L.P. | 846,801 | 73.6M $ | as of Mar 31, 2026 |
| Woodline Partners LP | 758,891 | 66M $ | as of Mar 31, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 725,744 | 63.1M $ | as of Mar 31, 2026 |
| Siren, L.L.C. | 725,511 | 63.1M $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 703,978 | 61.2M $ | as of Mar 31, 2026 |
| Rock Springs Capital Management LP | 689,748 | 60M $ | as of Mar 31, 2026 |
Declared shareholders of Rhythm Pharmaceuticals Inc
There are 2 beneficial ownership filings. These stakes do not add up. An asset manager that files includes its own funds, which already appear among the funds on this page.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Perceptive Advisors LLC and 3 others | 5.10 % | 3,519,626 | as of Mar 31, 2026 · SCHEDULE 13G |
| Vanguard Capital Management | 5.02 % | 3,432,949 | as of Mar 31, 2026 · SCHEDULE 13G |
Cite this page
Titelia. "Fund shareholders of Rhythm Pharmaceuticals Inc". https://titelia.com/en/stocks/rhythm-pharmaceuticals-inc-US76243J1051