As of the latest SEC filings, iRhythm Holdings, Inc. (IRTC) is held by 304 institutional funds. The largest fund shareholder is VANGUARD TOTAL STOCK MARKET INDEX FUND (VTI), holding an estimated $121,312,994.04 in market value, representing 0.01% of its portfolio.
Funds holding iRhythm Holdings, Inc. (IRTC)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- IRTC
- CIK:
- 0001388658
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
|
ETF | Vanguard | 0.01% | $121,312,994.04 | 1,027,902 | Mar 31, 2026 | May 28, 2026 |
|
IWM
iShares Russell 2000 ETF
|
ETF | BlackRock / iShares | 0.13% | $91,969,563.42 | 779,271 | Mar 31, 2026 | May 28, 2026 |
|
NAESX
VANGUARD SMALL-CAP INDEX FUND
|
ETF | Vanguard | 0.05% | $87,676,703.94 | 742,897 | Mar 31, 2026 | May 28, 2026 |
|
VEXPX
VANGUARD EXPLORER FUND
|
MF | Vanguard | 0.27% | $59,238,717.36 | 458,646 | Apr 30, 2026 | Jun 26, 2026 |
|
ETGLX
Eventide Gilead Fund
|
MF | Independent / Boutique | 2.04% | $54,791,021.04 | 464,252 | Mar 31, 2026 | May 29, 2026 |
|
SMCWX
SMALLCAP World Fund Inc
|
MF | Independent / Boutique | 0.07% | $54,739,328.28 | 463,814 | Mar 31, 2026 | May 28, 2026 |
|
FTXNX
FULLERTHALER BEHAVIORAL SMALL-CAP GROWTH
|
MF | Independent / Boutique | 1.21% | $50,996,442.00 | 432,100 | Mar 31, 2026 | May 28, 2026 |
|
FSMEX
Select Medical Technology and Devices Portfolio
|
MF | Fidelity | 1.35% | $49,220,000.00 | 368,000 | Feb 28, 2026 | Apr 24, 2026 |
|
VISGX
VANGUARD SMALL-CAP GROWTH INDEX FUND
|
ETF | Vanguard | 0.13% | $49,020,669.18 | 415,359 | Mar 31, 2026 | May 28, 2026 |
|
ODINX
Invesco Discovery Fund
|
MF | Invesco | 0.66% | $43,733,040.00 | 326,976 | Feb 28, 2026 | Apr 28, 2026 |
|
VEMPX
VANGUARD EXTENDED MARKET INDEX FUND
|
ETF | Vanguard | 0.05% | $42,472,329.48 | 359,874 | Mar 31, 2026 | May 28, 2026 |
|
BBGSX
Bridge Builder Small/Mid Cap Growth Fund
|
MF | Independent / Boutique | 0.45% | $41,746,388.46 | 353,723 | Mar 31, 2026 | May 22, 2026 |
|
FSSNX
Fidelity Small Cap Index Fund
|
MF | Fidelity | 0.13% | $40,706,840.56 | 315,166 | Apr 30, 2026 | Jun 26, 2026 |
|
ARTMX
Artisan Mid Cap Fund
|
MF | Independent / Boutique | 1.34% | $39,624,860.94 | 335,747 | Mar 31, 2026 | May 29, 2026 |
|
ETAHX
Eventide Healthcare & Life Sciences Fund
|
MF | Independent / Boutique | 2.06% | $32,778,756.78 | 277,739 | Mar 31, 2026 | May 29, 2026 |
|
IWO
iShares Russell 2000 Growth ETF
|
ETF | BlackRock / iShares | 0.25% | $30,760,732.80 | 260,640 | Mar 31, 2026 | May 28, 2026 |
|
OSGIX
JPMorgan Mid Cap Growth Fund
|
MF | JPMorgan | 0.23% | $26,447,337.84 | 224,092 | Mar 31, 2026 | May 29, 2026 |
|
FSMAX
Fidelity Extended Market Index Fund
|
MF | Fidelity | 0.06% | $22,604,151.25 | 169,003 | Feb 28, 2026 | Apr 24, 2026 |
|
VTWO
VANGUARD RUSSELL 2000 INDEX FUND
|
ETF | Vanguard | 0.14% | $21,133,837.50 | 158,010 | Feb 28, 2026 | Apr 28, 2026 |
|
SCHA
Schwab U.S. Small-Cap ETF
|
ETF | Charles Schwab | 0.10% | $20,966,650.00 | 156,760 | Feb 28, 2026 | Apr 24, 2026 |
|
LACAX
Columbia Acorn Fund
|
MF | Columbia Threadneedle | 0.89% | $20,038,379.76 | 169,788 | Mar 31, 2026 | May 28, 2026 |
|
PGSGX
JPMorgan Small Cap Growth Fund
|
MF | JPMorgan | 0.80% | $17,495,756.88 | 148,244 | Mar 31, 2026 | May 29, 2026 |
|
LSSNX
Loomis Sayles Small Cap Growth Fund
|
MF | Independent / Boutique | 0.88% | $16,860,337.20 | 142,860 | Mar 31, 2026 | May 29, 2026 |
|
IHI
iShares U.S. Medical Devices ETF
|
ETF | BlackRock / iShares | 0.52% | $16,384,480.56 | 138,828 | Mar 31, 2026 | May 22, 2026 |
|
OBSOX
Oberweis Small-Cap Opportunities Fund
|
MF | Independent / Boutique | 0.81% | $16,357,572.00 | 138,600 | Mar 31, 2026 | May 29, 2026 |
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