Nearhos Barry R 4

What Happened Barry R. Nearhos, a director of Mercury Systems Inc. (MRCY), was granted 245 deferred stock units (DSUs) on 2026-04-16. The Form 4 records this as 245 shares at $0.00 (total $0). The DSUs were issued in lieu of a quarterly cash retainer and were fully vested upon grant, but they do not convert into shares of common stock until the date Mr. Nearhos ceases to serve on the Board.

Key Details

• Transaction date and price: 2026-04-16 — 245 DSUs @ $0.00 (Award/Grant, code A).
• Shares owned after transaction: Not disclosed in the provided filing.
• Footnote: F1 — DSUs issued in lieu of cash retainer; fully vested on grant; convert to shares only upon board departure.
• Filing/timeliness: Form filed 2026-04-17 (filed the day after the transaction), which appears timely under Form 4 reporting rules.
• Nature of transaction: Deferred compensation award (not a cash purchase or sale).

Context DSUs are a form of deferred compensation for directors and are not immediately tradable common shares; they become payable/convert into stock only when the director leaves the board. Such awards are routine director compensation and do not by themselves indicate a buying or selling signal.