IRTC · Insider trading · 13F holders · Congress trades
iRhythm Holdings, Inc. (IRTC)
Who is buying and selling IRTC: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 15
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $7.4M
- Congress trades, 12 months
- 1
IRTC at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 8 IRTC insiders filed 9 sales worth $7.4M on SEC Form 4, and no open-market purchases.
- 15 13F filers hold IRTC among their 50 largest positions, worth $693.1M combined, including Joseph Edelman. The biggest bets by portfolio weight are Prosight Management, LP (3.4%), Braidwell LP (3.0%) and Rtw Investments, LP (2.2%). In their latest 13Fs, 0 managers opened a new position and 7 added to one.
- Members of Congress have disclosed 1 IRTC trade since 2019, 0 purchases and 1 sale in the past year; the latest was Donna E. Shalala (D-FL), selling $1K–15K on Jun 24, 2019.
- IRTC last closed at $127.80 on Oct 29, 2026.
IRTC insider trading
Between Aug 1, 2026 and Oct 29, 2026, 8 IRTC insiders filed 9 sales worth $7.4M on SEC Form 4, and no open-market purchases.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 3, 2026 | Wilson Daniel G. | Chief Financial Officer | Sale | 773 | $121.83 | $94K | SEC |
| Aug 11, 2026 | Blackford Quentin S. | President and CEO, Director | Sale | 26,859 | $124.65 | $3.3M | SEC |
| Aug 11, 2026 | Patterson Chad | CHIEF COMM & PRODUCT OFFICER | Sale | 7,093 | $124.65 | $884K | SEC |
| Aug 11, 2026 | Murphy Patrick Michael | CBO and CLO | Sale | 7,093 | $124.65 | $884K | SEC |
| Aug 11, 2026 | Turakhia Minang | CHIEF MED/SCI OFCR EVP ADVTECH | Sale | 7,093 | $124.65 | $884K | SEC |
| Aug 11, 2026 | Shrishrimal Sumi | EVP, Chief Risk Officer | Sale | 5,372 | $124.65 | $670K | SEC |
| Aug 4, 2026 | Patterson Chad | CHIEF COMM & PRODUCT OFFICER | Sale | 2,712 | $122.12 | $331K | SEC |
| Aug 4, 2026 | Rodda Julianne | EVP, CHIEF PEOPLE OFFICER | Sale | 2,112 | $122.12 | $258K | SEC |
| Aug 4, 2026 | Smith Mervin | EVP Strategic Business Ops | Sale | 617 | $122.12 | $75K | SEC |
Who owns IRTC? Hedge funds and superinvestors
15 13F filers hold IRTC among their 50 largest positions, worth $693.1M combined, including Joseph Edelman. The biggest bets by portfolio weight are Prosight Management, LP (3.4%), Braidwell LP (3.0%) and Rtw Investments, LP (2.2%). In their latest 13Fs, 0 managers opened a new position and 7 added to one.
Superinvestors holding IRTC: Joseph Edelman 0.4%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Rtw Investments, LPHedge fund | 2.2% | $259.6M | 2,182,631 | +30.8% shares | Q2 2026 |
| Eventide Asset Management, LLCMutual fund manager | 1.4% | $104.7M | 880,338 | +15.7% shares | Q2 2026 |
| Stephens Investment Management Group LLCMutual fund manager | 0.9% | $82.5M | 693,437 | +23.5% shares | Q2 2026 |
| Braidwell LPHedge fund | 3.0% | $77.8M | 654,262 | +7.2% shares | Q2 2026 |
| Rock Springs Capital Management LPHedge fund | 1.6% | $32.1M | 269,650 | +3.0% shares | Q2 2026 |
| Joseph EdelmanHedge fund | 0.4% | $26.6M | 223,766 | — | Q2 2026 |
| Ophir Asset Management Pty LtdAsset manager | 2.0% | $24.0M | 201,491 | -40.0% shares | Q2 2026 |
| Next Century Growth Investors LLCInstitutional asset manager | 1.2% | $22.3M | 187,064 | +10.5% shares | Q2 2026 |
| First Light Asset Management, LLCHedge fund | 1.2% | $19.9M | 167,092 | -0.6% shares | Q2 2026 |
| Prosight Management, LPHedge fund | 3.4% | $19.7M | 165,500 | +1555.0% shares | Q2 2026 |
| Parkman Healthcare Partners LLCHedge fund | 0.8% | $8.0M | 67,267 | — | Q2 2026 |
| Atle Fund Management ABAsset manager | 1.7% | $6.4M | 54,102 | +142.4% shares | Q2 2026 |
| Sirios Capital Management L PHedge fund | 0.5% | $4.1M | 34,455 | -0.8% shares | Q2 2026 |
| Sectoral Asset Management IncHedge fund | 2.2% | $3.1M | 26,070 | — | Q2 2026 |
| Kampmann Melissa S.Investment manager | 1.8% | $2.4M | 20,872 | -0.7% shares | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 14). Screen IRTC in the grand portfolio →
IRTC stock trades by members of Congress
Members of Congress have disclosed 1 IRTC trade since 2019, 0 purchases and 1 sale in the past year; the latest was Donna E. Shalala (D-FL), selling $1K–15K on Jun 24, 2019.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Apr 27, 2020 | Donna E. ShalalaD-FL · House | Sale | $1K–15K | Jun 24, 2019 | +60.6% |
IRTC questions and answers
Are insiders buying IRTC stock?
Between Aug 1, 2026 and Oct 29, 2026, 8 IRTC insiders filed 9 sales worth $7.4M on SEC Form 4, and no open-market purchases.
Which hedge funds own IRTC?
15 13F filers hold IRTC among their 50 largest positions, worth $693.1M combined, including Joseph Edelman. The biggest bets by portfolio weight are Prosight Management, LP (3.4%), Braidwell LP (3.0%) and Rtw Investments, LP (2.2%). In their latest 13Fs, 0 managers opened a new position and 7 added to one.
Has Congress traded IRTC?
Members of Congress have disclosed 1 IRTC trade since 2019, 0 purchases and 1 sale in the past year; the latest was Donna E. Shalala (D-FL), selling $1K–15K on Jun 24, 2019.
Who is the largest holder of IRTC?
Among 13F filers, Rtw Investments, LP reports the largest IRTC position, $259.6M (2,182,631 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Prosight Management, LP's: 3.4% of its portfolio.
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