Director Gerard J. DeMuro filed a Form 4 with the SEC on October 29, 2026, reporting the acquisition of 2,348 deferred stock units of Mercury Systems Inc on October 28, 2026.

Key Highlights

  • Reporting person: Gerard J. DeMuro, a director of Mercury Systems Inc (NASDAQ:MRCY).
  • Transaction: Acquisition (code A) of 2,348 deferred stock units (DSUs) on October 28, 2026, at a price of $0.
  • Direct holdings after transaction: 14,074 shares of common stock held directly.
  • Indirect holdings: 5,755 shares held indirectly by The Gerald J. DeMuro, Jr. GRAT No. 7 Dated 1/6/2020.
  • DSU vesting terms: Units vest on the earlier of the first anniversary of the grant date and the next annual meeting of shareholders.
  • Conversion condition: Vested DSUs do not convert into shares of common stock until DeMuro ceases to be a member of the Board of Directors.

Mercury Systems Director DeMuro Reports DSU Grant and Beneficial Ownership Details

According to the Form 4 filing, Gerard J. DeMuro, serving as a director of Mercury Systems Inc, acquired 2,348 deferred stock units on October 28, 2026. The transaction was coded "A" (acquired) in Table I of the filing, with a reported price of $0. The filing was signed by Douglas Munro as attorney-in-fact and submitted to the SEC on October 29, 2026.

The filing discloses that following the reported transaction, DeMuro directly holds 14,074 shares of Mercury Systems common stock. In addition, 5,755 shares are held indirectly through The Gerald J. DeMuro, Jr. GRAT No. 7 Dated 1/6/2020, as reported in the filing's beneficial ownership table.

The filing's footnote explains that the 2,348 DSUs "vest on the earlier of the first anniversary of the grant date and the next annual meeting of shareholders." It further states that "vested DSUs do not convert into shares of common stock until the date on which the reporting person ceases to be a member of our Board of Directors." No derivative securities transactions were reported in Table II of the filing.

What Was Disclosed

Director Gerard J. DeMuro reported acquiring 2,348 DSUs in Mercury Systems Inc on October 28, 2026, at no cost, bringing his direct holdings to 14,074 shares. An additional 5,755 shares are held indirectly through a grantor retained annuity trust.