iRhythm Technologies Inc (IRTC)
Healthcare
Medical Devices
117.20 $
-1.6%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns iRhythm Technologies Inc (IRTC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 93.7% of the shares are freely tradable; institutional investors hold 111.1%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
111.1%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
1.2%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
93.7%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
9.0%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
33Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Group Inc | 10.07 | 3,310,519 | +2.2 | 12/31/2025 |
| BlackRock Inc | 8.34 | 2,741,505 | -2.6 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.47 | 1,796,372 | +0.0 | 03/31/2026 |
| RTW INVESTMENTS, LLC | 5.08 | 1,668,500 | +41.2 | 03/31/2026 |
| Millennium Management LLC | 4.89 | 1,608,014 | +94.6 | 03/31/2026 |
| Artisan Partners Limited Partnership | 4.42 | 1,450,907 | -4.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.40 | 1,445,710 | +0.0 | 03/31/2026 |
| FMR Inc | 4.14 | 1,361,919 | +116.6 | 03/31/2026 |
| Holocene Advisors, LP | 3.80 | 1,248,658 | +82.7 | 03/31/2026 |
| UBS Asset Mgmt Americas Inc | 3.19 | 1,047,452 | +26.2 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.