Irhythm Holdings (IRTC)RTW Investments, LP opened a new position $210M

1.18M

Shares reported

2.1%

Disclosed portfolio weight

$210M

Reported value

Holdings as of

Dec 31, 2025

Filed

Feb 17, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

What came next

1. Feb 19, 2026Company filing · Form 8-K · ResultsReported its results
2. Mar 12, 2026Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“Effective as of March 12, 2026, the Board of Directors (the "Board") of iRhythm Holdings, Inc., a Delaware corporation (the "Company") appointed Jason Patten as a director of the Board and member of the Audit Committee of the Board (the “Audit Committee”).”
3. Mar 30, 2026Company filing · Form 8-K · Auditor changeChanged its auditor“On March 30, 2026, the Audit Committee of the Board of Directors (the “Audit Committee”) of iRhythm Holdings, Inc. (the “Company”) dismissed PricewaterhouseCoopers LLP (“PwC”) as the Company’s independent registered public accounting firm.”
4. Apr 30, 2026Company filing · Form 8-K · ResultsReported its results
5. May 27, 2026Company filing · Form 8-K · Executive change, Shareholder voteChanged a top executive or board member, and held a shareholder vote“As described in Item 5.07 below, on May 27, 2026, at the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of iRhythm Holdings, Inc. (the “Company”), the Company’s stockholders approved the iRhythm Holdings, Inc. 2026 Equity Incentive Plan (the “2026 Plan”).”
6. Jun 10, 2026Company filing · Form 8-K · Cyber incidentReported a cybersecurity incident“On June 8, 2026, iRhythm Holdings, Inc. (the “Company”) identified unauthorized activity involving data maintained on certain third-party-hosted business applications.”

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Irhythm Holdings

For Irhythm Holdings, OQRO holds 8 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its IRTC page.

How this filing works

• SEC Form 13F

Other disclosures at Irhythm Holdings

• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 13, 2026

Everything OQRO holds on this company is on its IRTC page.