Director Lisa S. Disbrow filed a Form 4 with the SEC on October 29, 2026, reporting the acquisition of 2,348 restricted stock units in Mercury Systems Inc on October 28, 2026.

Key Highlights

  • Reporting person: Lisa S. Disbrow, listed as a Director of Mercury Systems Inc (NASDAQ:MRCY).
  • Transaction: Acquisition (Code A) of 2,348 shares of Common Stock on October 28, 2026, at a price of $0.
  • Security type: Restricted stock units that vest on the earlier of the first anniversary of the grant date or the next annual meeting of shareholders.
  • Resulting ownership: Disbrow beneficially owns 33,584 shares of Common Stock directly following the transaction.
  • Filing date: October 29, 2026, signed by Douglas Munro as attorney-in-fact.

Mercury Systems Director Disbrow Receives RSU Grant in October 2026

According to the Form 4 filing, Lisa S. Disbrow, a Director at Mercury Systems Inc (NASDAQ:MRCY), acquired 2,348 restricted stock units of Mercury Systems Common Stock on October 28, 2026. The filing records the transaction under Code A, indicating an acquisition, at a stated price of $0. The units were granted directly and are classified as non-derivative securities in Table I of the filing.

The filing's footnote discloses that the 2,348 restricted stock units "vest on the earlier of the first anniversary of the grant date and the next annual meeting of shareholders." Following this transaction, Disbrow's direct beneficial ownership of Mercury Systems Common Stock stands at 33,584 shares, as reported in the filing. No derivative securities transactions were reported in Table II.

The Form 4 was signed on October 29, 2026, by Douglas Munro acting as attorney-in-fact for Disbrow. The filing was submitted as an individual report by one reporting person, with Disbrow's address listed as 50 Minuteman Road, Andover, Massachusetts 01810.

What Was Disclosed

Director Lisa S. Disbrow reported the acquisition of 2,348 restricted stock units of Mercury Systems Common Stock at $0 on October 28, 2026, bringing her total direct beneficial ownership to 33,584 shares. The RSUs vest on the earlier of the first anniversary of the grant or the next annual shareholder meeting.