Who Owns iRhythm Stock?
NASDAQ: IRTCHealth CareMedical/Dental InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Ownership breakdown
- Held by institutions
- 110.95%
- Institutions (% of float)
- 112.27%
- Held by insiders
- 1.17%
- Institutional holders
- 417
- Institutions 98.8%
- Insiders 1.2%
- Public and other 0.0%
Who owns iRhythm stock?
Institutional investors own about 110.9% of iRhythm's shares, spread across 417 institutions that file 13F reports. That level of institutional ownership is high, typical of large, widely followed companies. Insiders, including executives, directors and large founding shareholders, hold 1.17% of IRTC.
The largest institutional holders are Blackrock Inc. (9.06%), RTW Investments LP (6.62%) and Vanguard Portfolio Management LLC (5.81%). Together, the top 10 institutions control 47.1% of shares outstanding. In their latest filings, 7 of the top 10 institutions increased their IRTC positions and 3 reduced them.
Summary generated from market data by MetaCap's automated system. Methodology
Top institutional holders of IRTC
| Institution | Shares | % Held | Change |
|---|---|---|---|
| Blackrock Inc. | 2.99M | 9.06% | +8.9% |
| RTW Investments LP | 2.18M | 6.62% | +30.8% |
| Vanguard Portfolio Management LLC | 1.91M | 5.81% | +6.5% |
| Artisan Partners Limited Partnership | 1.66M | 5.04% | +14.4% |
| Vanguard Capital Management LLC | 1.46M | 4.44% | +1.2% |
| Millennium Management Llc | 1.41M | 4.27% | -12.5% |
| FMR, LLC | 1.19M | 3.62% | -12.5% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 944.52K | 2.87% | -9.8% |
| Geode Capital Management, LLC | 881.90K | 2.68% | +7.9% |
| Eventide Asset Management LLC | 880.34K | 2.67% | +15.7% |
% held is the share of total shares outstanding. Change is the percentage change in the position since the holder's previous 13F filing.
Top mutual fund and ETF holders of IRTC
| Fund | Shares | % Held |
|---|---|---|
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 1.03M | 3.11% |
| iShares Trust-iShares Russell 2000 ETF | 847.29K | 2.57% |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund | 741.50K | 2.25% |
| MUTUAL FUND SERIES TRUST-Eventide Gilead Fund | 582.47K | 1.77% |
| Vanguard Explorer Fund | 521.70K | 1.58% |
| Capitol Series Trust-FullerThaler Behavioral Small-Cap Growth Fund | 447.10K | 1.36% |
| Bridge Builder Trust-Bridge Builder Small/Mid Cap Growth Fund | 435.61K | 1.32% |
| VANGUARD INDEX FUNDS-Vanguard Small-Cap Growth Index Fund | 427.29K | 1.30% |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 377.97K | 1.15% |
| Fidelity Salem Street Trust-Fidelity Small Cap Index Fund | 361.73K | 1.10% |
Frequently asked questions
Who is the largest shareholder of iRhythm?
Blackrock Inc. is the largest institutional shareholder of IRTC, owning 9.06% of shares outstanding (2.99M shares) as of its latest 13F filing.
What percentage of iRhythm is owned by institutions?
Institutions own about 110.9% of IRTC shares and 112.3% of the public float.
How much of iRhythm do insiders own?
Insiders, such as officers and directors, own about 1.17% of IRTC shares outstanding.
Where does institutional ownership data come from?
Investment managers with more than $100 million in US equities must file Form 13F with the SEC within 45 days of each quarter-end. Holdings are therefore up to about 4.5 months old when published.