IRTC — IRHYTHM TECHNOLOGIES INC
Health Care
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying IRTC?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 1 tracked investors who changed their IRTC position last quarter, 0 bought and 1 sold (0% buy-side). Macro conditions are a headwind for Health Care (Macro Tailwind 44/100 in a Overheat regime).
- +4 tracked investors reported holding IRTC at their latest filing
- −1 tracked investor reduced or exited last quarter (0 reduced, 1 sold out)
- −Current Overheat regime has historically been a headwind for Health Care (Macro Tailwind 44/100)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 10/21/2026.
About IRHYTHM TECHNOLOGIES INC (IRTC)
IRHYTHM TECHNOLOGIES INC (IRTC) appears in the most recent 13F filings of 4 tracked institutional investors. IRHYTHM TECHNOLOGIES INC is classified in the Health Care sector. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $197M. Across recent filings, tracked investors recorded 8 new positions, 1 increased, 9 reduced, and 7 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in IRTC
How many top investors track IRTC
A small number of top investors own this.
IRTC Ownership Composition
How IRHYTHM TECHNOLOGIES INC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant90.7%
- Macro9.3%
Tracked investors currently reporting IRTC
2 tracked investors have since exited this position — listed separately below.
- Izzy EnglanderJun 30, 2026Millennium ManagementShares1.4MValue$167.3M% Portfolio0.06%
- Steve CohenJun 30, 2026Point72 Asset ManagementShares273.2KValue$32.5M% Portfolio0.04%
- Ken GriffinJun 30, 2026Citadel AdvisorsShares31.6MValue$34.9M% Portfolio0.00%
- Paul Tudor JonesJun 30, 2026Tudor Investment CorpShares21.8MValue$24M% Portfolio0.03%
Previously held IRTC
These investors reported IRTC in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Howard Marks | Oaktree Capital Management | 1.4M | $1.5M | Mar 31, 2026 |
| Ray Dalio | Bridgewater Associates | 3.4K | $303.3K | Dec 31, 2024 |
Recent activity
- New$2MMay 15, 2025
- Reduced$1.3M(-44.74%)Aug 13, 2025
- Reduced$1.2M(-14.29%)Nov 13, 2025
- Sold$0(-100.00%)Feb 17, 2026
- New$1.5MMay 20, 2026
- Sold$0(-100.00%)Aug 14, 2026
- Reduced$777.5K(-4.76%)Feb 14, 2024
- Reduced$711K(-15.63%)May 14, 2024
- Reduced$590.5K(-10.49%)Aug 14, 2024
- Increased$731.5K(79.60%)Nov 13, 2024
- Reduced$303.3K(-65.86%)Feb 13, 2025
- Sold$0(-100.00%)May 14, 2025
- Reduced$20.2M(-49.26%)Nov 14, 2024
- Sold$0(-100.00%)Feb 14, 2025
- New$8.9MJul 21, 2025
- Reduced$61.9M(-95.31%)Aug 14, 2025
- Reduced$59.9M(-13.43%)Nov 14, 2025
- Sold$0(-100.00%)Feb 17, 2026
- Sold$0(-100.00%)Aug 14, 2024
- $207.4KFeb 14, 2025
- Sold$0(-100.00%)May 15, 2025
- $27.5MDec 9, 2025
- New$718.9KNov 13, 2023
- New$57.7MSep 16, 2024
- $5.6MMay 15, 2024
Frequently asked questions
- How many institutional investors hold IRTC?
- 4 tracked institutional investors disclosed a position in IRTC (IRHYTHM TECHNOLOGIES INC) in their most recent 13F filing.
- Who is the largest institutional holder of IRTC?
- Izzy Englander, Millennium Management, holds the largest disclosed position in IRTC, valued at $197M.
- Did institutional ownership of IRTC increase or decrease?
- Across recent 13F filings, tracked investors recorded 8 new positions, 1 increased, 9 reduced, and 7 fully exited IRTC.
- What sector is IRTC in?
- IRHYTHM TECHNOLOGIES INC is classified in the Health Care GICS sector.
- Where does this IRTC ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.