Ambra R. Roth, SVP, General Counsel and Secretary of MACOM Technology Solutions Holdings, Inc. (NASDAQ:MTSI), filed a Form 4 on October 30, 2026, disclosing that 279 shares of common stock were withheld by the issuer on October 28, 2026, to satisfy tax withholding obligations tied to the vesting of restricted stock units.

Key Highlights

  • Reporting person: Ambra R. Roth, SVP, General Counsel and Secretary of MACOM Technology Solutions Holdings, Inc.
  • Transaction date: October 28, 2026
  • Shares withheld: 279 shares of common stock disposed of (transaction code F) at $260.92 per share
  • Purpose: Shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units
  • Beneficial ownership following transaction: 10,005 shares of common stock held directly

Roth's RSU Vesting and Share Withholding at MACOM, October 2026

According to the Form 4 filed with the SEC on October 30, 2026, Ambra R. Roth reported a single transaction in Table I involving common stock of MACOM Technology Solutions Holdings, Inc., traded on NASDAQ under the symbol MTSI. The transaction, coded "F," reflects shares disposed of rather than a voluntary open-market sale.

The filing states that 279 shares were withheld by the issuer on October 28, 2026, at a price of $260.92 per share. According to the filing's footnote, this withholding was made "to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units on October 28, 2026." Following this transaction, the filing reports that Roth directly beneficially owns 10,005 shares of MACOM common stock.

No derivative securities were reported in Table II. The Form 4 was filed by one reporting person and bears Roth's signature dated October 30, 2026. The filing does not indicate any amendment to a prior Form 4.

What Was Disclosed

The filing discloses a single tax-related share withholding event involving 279 shares of MACOM common stock at $260.92, connected to restricted stock unit vesting on October 28, 2026, leaving Roth with direct beneficial ownership of 10,005 shares.