As of the latest SEC filings, RHYTHM PHARMACEUTICALS, INC. (RYTM) is held by 316 institutional funds. The largest fund shareholder is VANGUARD TOTAL STOCK MARKET INDEX FUND (VTI), holding an estimated $189,300,554.43 in market value, representing 0.01% of its portfolio.
Funds holding RHYTHM PHARMACEUTICALS, INC. (RYTM)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- RYTM
- CIK:
- 0001649904
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
|
ETF | Vanguard | 0.01% | $189,300,554.43 | 2,176,619 | Mar 31, 2026 | May 28, 2026 |
|
POAGX
PRIMECAP Odyssey Aggressive Growth Fund
|
MF | Independent / Boutique | 2.55% | $172,756,488.24 | 2,123,359 | Apr 30, 2026 | Jun 29, 2026 |
|
NAESX
VANGUARD SMALL-CAP INDEX FUND
|
ETF | Vanguard | 0.08% | $136,926,785.58 | 1,574,414 | Mar 31, 2026 | May 28, 2026 |
|
IWM
iShares Russell 2000 ETF
|
ETF | BlackRock / iShares | 0.16% | $112,399,767.09 | 1,292,397 | Mar 31, 2026 | May 28, 2026 |
|
SMCWX
SMALLCAP World Fund Inc
|
MF | Independent / Boutique | 0.12% | $93,892,725.03 | 1,079,599 | Mar 31, 2026 | May 28, 2026 |
|
POGRX
PRIMECAP Odyssey Growth Fund
|
MF | Independent / Boutique | 1.64% | $89,121,906.72 | 1,095,402 | Apr 30, 2026 | Jun 29, 2026 |
|
XBI
State Street(R) SPDR(R) S&P(R) Biotech ETF
|
ETF | State Street (SPDR) | 1.10% | $81,852,859.14 | 941,162 | Mar 31, 2026 | May 28, 2026 |
|
VISGX
VANGUARD SMALL-CAP GROWTH INDEX FUND
|
ETF | Vanguard | 0.20% | $76,546,297.62 | 880,146 | Mar 31, 2026 | May 28, 2026 |
|
VEMPX
VANGUARD EXTENDED MARKET INDEX FUND
|
ETF | Vanguard | 0.07% | $59,006,274.99 | 678,467 | Mar 31, 2026 | May 28, 2026 |
|
OSGIX
JPMorgan Mid Cap Growth Fund
|
MF | JPMorgan | 0.46% | $51,937,614.30 | 597,190 | Mar 31, 2026 | May 29, 2026 |
|
SHSKX
BlackRock Health Sciences Opportunities Portfolio
|
MF | BlackRock / iShares | 0.76% | $49,962,274.89 | 538,793 | Feb 27, 2026 | Apr 24, 2026 |
|
FKASX
Federated Hermes Kaufmann Small Cap Fund
|
MF | Federated Hermes | 1.67% | $48,165,120.00 | 592,000 | Apr 30, 2026 | Jun 23, 2026 |
|
KAUAX
Federated Hermes Kaufmann Fund
|
MF | Federated Hermes | 0.98% | $45,602,280.00 | 560,500 | Apr 30, 2026 | Jun 23, 2026 |
|
PRJIX
T. Rowe Price New Horizons Fund, Inc.
|
MF | T. Rowe Price | 0.34% | $43,186,605.93 | 496,569 | Mar 31, 2026 | May 28, 2026 |
|
FSSNX
Fidelity Small Cap Index Fund
|
MF | Fidelity | 0.13% | $42,580,813.68 | 523,363 | Apr 30, 2026 | Jun 26, 2026 |
|
IBB
iShares Biotechnology ETF
|
ETF | BlackRock / iShares | 0.51% | $41,270,656.83 | 474,539 | Mar 31, 2026 | May 28, 2026 |
|
IWO
iShares Russell 2000 Growth ETF
|
ETF | BlackRock / iShares | 0.31% | $37,506,769.17 | 431,261 | Mar 31, 2026 | May 28, 2026 |
|
HISGX
Harbor Small Cap Growth Fund
|
MF | Independent / Boutique | 1.38% | $35,594,186.40 | 437,490 | Apr 30, 2026 | Jun 26, 2026 |
|
FIDGX
Fidelity Small Cap Growth Fund
|
MF | Fidelity | 0.40% | $33,364,759.68 | 410,088 | Apr 30, 2026 | Jun 26, 2026 |
|
PRDSX
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
|
MF | T. Rowe Price | 0.38% | $31,141,608.81 | 358,073 | Mar 31, 2026 | May 28, 2026 |
|
VEXPX
VANGUARD EXPLORER FUND
|
MF | Vanguard | 0.14% | $30,722,756.40 | 377,615 | Apr 30, 2026 | Jun 26, 2026 |
|
FSMAX
Fidelity Extended Market Index Fund
|
MF | Fidelity | 0.07% | $29,394,111.78 | 316,986 | Feb 28, 2026 | Apr 24, 2026 |
|
SCHA
Schwab U.S. Small-Cap ETF
|
ETF | Charles Schwab | 0.13% | $27,381,036.21 | 295,277 | Feb 28, 2026 | Apr 24, 2026 |
|
VTWO
VANGUARD RUSSELL 2000 INDEX FUND
|
ETF | Vanguard | 0.16% | $24,317,700.66 | 262,242 | Feb 28, 2026 | Apr 28, 2026 |
|
PNSAX
Putnam Small Cap Growth Fund
|
MF | Independent / Boutique | 0.89% | $24,078,079.35 | 276,855 | Mar 31, 2026 | May 27, 2026 |
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