Shrishrimal Sumi 4

What Happened

• Shrishrimal Sumi, EVP and Chief Risk Officer of iRhythm Holdings (IRTC), had 11,294 performance RSUs vest on Feb 24, 2026 (acquired at $0.00 per share). The next day (Feb 25, 2026) Sumi sold 6,217 of those shares in the open market at $135.42 per share, generating proceeds of $841,899. The sale was reported on a Form 4 filed Feb 26, 2026.
• This sequence reflects a vesting/award event followed by a sale to satisfy withholding obligations, not a customary open-market investment purchase.

Key Details

• Transaction dates and prices:
  • 2026-02-24: Award/acquisition of 11,294 shares (RSU vest) @ $0.00 (Footnote F1).
  • 2026-02-25: Open-market sale of 6,217 shares @ $135.42 = $841,899 (Footnote F2).
• Purpose of sale: Footnote F2 states the shares were sold to cover tax withholding and remittance obligations related to the RSU vesting.
• Shares owned after the transactions: Not specified in the provided filing details.
• Filing timeliness: Form 4 filed on 2026-02-26 covering transactions on Feb 24–25 — appears timely.
• Corporate note: On Jan 12, 2026 iRhythm Holdings became the successor issuer to iRhythm Technologies in a holding company reorganization; pre-existing shares and awards converted one-for-one (see Remarks).

Context

• These were performance RSUs that vested after the Compensation & Human Capital Management Committee determined performance conditions were met (per Footnote F1). The $0.00 acquisition price is standard for vested RSUs — the recipient receives shares rather than buying them.
• The sale was a tax-withholding action (commonly called a sell-to-cover) and should not be automatically read as a directional bet on the stock; it is routine following vesting.