iRhythm Holdings, Inc. IRTC
130.19 USD -3.81 (-2.84%)
At closeNov 5, 2026, 6:35 PM EST
111.00 -19.19 -14.74%
After hours · Nov 5, 6:35 PM ET
128.36 Day range 136.82
100.70 52-week range 192.47
- YTD
- -26.63%
- 1 year
- -27.87%
Held by funds
117 US ETFs and mutual funds hold IRTC · largest positions
Ownership
Held by insiders 1.17%
Held by institutions 106.83%
Float held by institutions 108.10%
Institutions 420
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Blackrock Inc. | 9.06% | 2,985,667 | 400.08M | Jun 29, 2026 |
| RTW Investments LP | 6.62% | 2,182,631 | 292.47M | Jun 29, 2026 |
| Vanguard Portfolio Management LLC | 5.81% | 1,913,976 | 256.47M | Jun 29, 2026 |
| Artisan Partners Limited Partnership | 5.04% | 1,660,307 | 222.48M | Jun 29, 2026 |
| Vanguard Capital Management LLC | 4.44% | 1,463,211 | 196.07M | Jun 29, 2026 |
| Millennium Management Llc | 4.27% | 1,406,454 | 188.46M | Jun 29, 2026 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 3.11% | 1,026,322 | 137.53M | Jun 29, 2026 |
| iShares Trust-iShares Russell 2000 ETF | 2.59% | 854,999 | 114.57M | Sep 29, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 2.25% | 741,498 | 99.36M | Jun 29, 2026 |
| MUTUAL FUND SERIES TRUST-Eventide Gilead Fund | 1.77% | 582,472 | 78.05M | Jun 29, 2026 |
| Vanguard Explorer Fund | 1.58% | 521,698 | 69.91M | Jul 30, 2026 |
| Capitol Series Trust-FullerThaler Behavioral Small-Cap Growth Fund | 1.36% | 447,100 | 59.91M | Jun 29, 2026 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| BLACKFORD QUENTIN S | Chief Executive Officer | Sale | Aug 9, 2026 | 226,008 |
| LAWRENCE BRIAN LEE | Chief Technology Officer | Sale | May 3, 2026 | 20,154 |
| MURPHY PATRICK MICHAEL | Officer | Sale | Aug 9, 2026 | 69,699 |
| PATTERSON CHAD | Officer | Sale | Aug 9, 2026 | 62,125 |
| RODDA JULIANNE | Officer | Sale | Aug 2, 2026 | 18,201 |
| SHRISHRIMAL SUMI | Officer | Sale | Aug 9, 2026 | 44,621 |