Form 4: iRhythm CAO Sells 280 Shares Under 10b5-1 Plan

iRhythm Holdings, Inc.'s Chief Accounting Officer, Marc Wade Rosenbaum, sold 280 shares of common stock for $140.91 per share as part of a pre-arranged trading plan.

Summary

• Marc Wade Rosenbaum, Chief Accounting Officer of iRhythm Holdings, Inc., reported the sale of 280 shares of common stock.
• The transaction occurred on February 24, 2026, at a price of $140.91 per share.
• The sale was executed under a Rule 10b5-1 trading plan, which was established on May 12, 2025, and subsequently modified on November 25, 2025.
• Following this transaction, Mr. Rosenbaum beneficially owns 10,601 shares of iRhythm Holdings, Inc. common stock.
• A holding company reorganization took place on January 12, 2026, where iRhythm Holdings, Inc. became the successor issuer to iRhythm Technologies, Inc., with a one-for-one conversion of securities.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event. The sale is a routine insider transaction executed under a pre-arranged 10b5-1 plan, which typically does not convey new information about the company's prospects.

Positives

• The sale was conducted under a Rule 10b5-1 trading plan, indicating a pre-scheduled transaction rather than an immediate reaction to new information.

Negatives

• An insider sale, even if pre-planned, reduces the insider's direct equity stake in the company.

Industry Context

StockSavvy.ai notes that insider transactions, particularly those executed under Rule 10b5-1 plans, are common in the healthcare technology sector as executives manage their personal portfolios and liquidity needs. This specific transaction does not inherently signal a change in the company's operational or strategic direction within the industry.

Corporate Governance

Related Party Transactions

• Sale of 280 shares of common stock by Marc Wade Rosenbaum, Chief Accounting Officer, to the open market, which is a transaction involving a related party (insider).

Stakeholder Impact

• Shareholders: The sale represents a minor reduction in insider ownership, but its execution under a 10b5-1 plan suggests it's a planned liquidity event rather than a signal of management's lack of confidence.
• Employees: No direct impact on employees is indicated by this filing.
• Customers/Suppliers/Creditors: No direct impact on these stakeholders is indicated by this filing.

Key Dates

Recommendation

The transaction is a routine insider sale executed under a pre-established 10b5-1 plan, which typically does not provide new material information to warrant a change in investment thesis. The holding company reorganization is also a structural change with no impact on proportionate ownership. Therefore, a 'hold' recommendation is appropriate as this filing does not present new reasons to buy or sell.

Keywords

iRhythm Holdings, IRTC, Marc Rosenbaum, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, Chief Accounting Officer, Equity Transaction