2m 2m 2m 2m 2m 2m 2m
RHYTHM PHARM (RYTM)
NASDAQ
$107.46-$0.03 (-0.03%)
Price as of Jul 14, 2026 4:31 AM EDT- $7.4BMarket Cap
- 20.57%1-Year Change
- BiotechnologyIndustry
RHYTHM PHARM (RYTM)
$107.46-$0.03 (-0.03%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK FUNDING, INC. /DE | 10.13% | 7.0M | +61,457 (+0.88%) | Dec 31, 2024 |
BLACKROCK INC. | 9.83% | 6.7M | +212,277 (+3.15%) | Jun 30, 2024 |
RA CAPITAL MANAGEMENT, L.P. | 9.72% | 6.7M | 0 (0.00%) | Mar 31, 2026 |
BLACKROCK, INC. | 9.09% | 6.2M | -60,183 (-0.96%) | Mar 31, 2026 |
VANGUARD GROUP INC | 9.05% | 6.2M | +1.2M (+19.55%) | Dec 31, 2025 |
BAKER BROS. ADVISORS LP | 8.17% | 5.6M | 0 (0.00%) | Mar 31, 2026 |
PRIMECAP MANAGEMENT CO/CA/ | 4.98% | 3.4M | -61,160 (-1.79%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 7.74% | 5.3M | +181,053 (+3.41%) | Mar 31, 2026 |
PRIMECAP Odyssey Funds | 4.69% | 3.2M | -58,320 (-1.81%) | Apr 30, 2026 |
FRANKLIN VALUE INVESTORS TRUST | 2.67% | 1.8M | 0 (0.00%) | Apr 30, 2026 |
Federated Hermes Equity Funds | 1.68% | 1.2M | -25,700 (-2.23%) | Apr 30, 2026 |
SMALLCAP WORLD FUND INC | 1.57% | 1.1M | +91,746 (+8.50%) | Mar 31, 2026 |
SPDR SERIES TRUST | 1.37% | 941,162 | 0 (0.00%) | Apr 30, 2026 |
JPMORGAN TRUST II | 1.24% | 852,562 | +66,151 (+7.76%) | Mar 31, 2026 |
Current Ownership Distribution
- Institutions1.6B (83.32%)
- Mutual Funds283.9M (14.99%)
- Insiders32.1M (1.69%)
- Other0 (0.00%)
Insider Transactions
- 1.69% (32.1M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 5Number of InsiderSelling (last 12 months)
- $150.8MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Garfield Alastair Chief Scientific Officer | Exempt | Jul 01, 2026 | $0.00 | 4,445 | $0.00 | 8,888 |
Garfield Alastair Chief Scientific Officer | Exempt | Jul 01, 2026 | $0.00 | 4,445 | $0.00 | 12,208 |
Garfield Alastair Chief Scientific Officer | In Kind | Jul 01, 2026 | $237,381.50 | 2,150 | $110.41 | 10,058 |
MCGIRR DAVID W J | Award | Jun 24, 2026 | $0.00 | 3,691 | $0.00 | 3,691 |
JEAN CHRISTOPHE | Award | Jun 24, 2026 | $0.00 | 3,691 | $0.00 | 3,691 |
GOOD JENNIFER L | Award | Jun 24, 2026 | $0.00 | 3,691 | $0.00 | 3,691 |
JEAN CHRISTOPHE | Award | Jun 24, 2026 | $0.00 | 2,324 | $0.00 | 2,324 |
MCGIRR DAVID W J | Award | Jun 24, 2026 | $0.00 | 2,324 | $0.00 | 2,324 |
GOOD JENNIFER L | Award | Jun 24, 2026 | $0.00 | 2,324 | $0.00 | 2,324 |
JEAN CHRISTOPHE | Exempt | Jun 23, 2026 | $0.00 | 4,712 | $0.00 | 11,712 |
MCGIRR DAVID W J | Exempt | Jun 23, 2026 | $0.00 | 4,712 | $0.00 | 11,712 |
JEAN CHRISTOPHE | Exempt | Jun 23, 2026 | $0.00 | 4,712 | $0.00 | 0 |
GOOD JENNIFER L | Exempt | Jun 23, 2026 | $0.00 | 4,712 | $0.00 | 11,712 |
MCGIRR DAVID W J | Exempt | Jun 23, 2026 | $0.00 | 4,712 | $0.00 | 0 |
GOOD JENNIFER L | Exempt | Jun 23, 2026 | $0.00 | 4,712 | $0.00 | 0 |
TETRAULT LYNN A. | Exempt | Jun 22, 2026 | $0.00 | 37,000 | $0.00 | 0 |
TETRAULT LYNN A. | Exempt | Jun 22, 2026 | $1.0M | 37,000 | $28.27 | 44,000 |
TETRAULT LYNN A. | Sell | Jun 22, 2026 | $3.7M | 37,000 | $100.32 | 7,000 |
Popovits Kimberly J | Award | Apr 01, 2026 | $0.00 | 6,808 | $0.00 | 6,808 |
Mazabraud Yann EVP, Head of International | Exempt | Apr 01, 2026 | $0.00 | 10,375 | $0.00 | 10,375 |
Popovits Kimberly J | Award | Apr 01, 2026 | $0.00 | 10,257 | $0.00 | 10,257 |
Mazabraud Yann EVP, Head of International | Exempt | Apr 01, 2026 | $0.00 | 2,500 | $0.00 | 5,000 |
Mazabraud Yann EVP, Head of International | Exempt | Apr 01, 2026 | $0.00 | 12,875 | $0.00 | 66,030 |
Mathers Edward T | Other | Mar 12, 2026 | $0.00 | 4,199 | $0.00 | 14,168 |
German Christopher Paul Corporate Controller & CAO | Exempt | Mar 04, 2026 | $0.00 | 1,500 | $0.00 | 3,731 |
German Christopher Paul Corporate Controller & CAO | Exempt | Mar 04, 2026 | $26,955.00 | 1,500 | $17.97 | 5,753 |
German Christopher Paul Corporate Controller & CAO | Sell | Mar 04, 2026 | $502,789.84 | 5,614 | $89.56 | 160 |
Mathers Edward T | Other | Mar 02, 2026 | $0.00 | 4,198 | $0.00 | 9,969 |
Mazabraud Yann EVP, Head of International | Award | Mar 02, 2026 | $0.00 | 35,000 | $0.00 | 35,000 |
Mazabraud Yann EVP, Head of International | Exempt | Feb 14, 2026 | $0.00 | 10,000 | $0.00 | 30,000 |