Mercury Systems (MRCY) EVP Steven Ratner Sells Shares

What Happened
Steven Ratner, EVP and Chief Human Resources Officer of Mercury Systems (MRCY), sold a total of 3,055 shares in two sell transactions to satisfy tax withholding upon the vesting of stock awards. On 2026-08-17 he sold 1,084 shares at $109.95 each for $119,187, and on 2026-08-18 he sold 1,971 shares at $111.36 each for $219,486 — total proceeds about $338,673. These were disposals (sales), commonly routine when shares are sold to cover taxes.

Key Details

• Transaction dates and prices:
  • 2026-08-17: 1,084 shares sold @ $109.95 = $119,187
  • 2026-08-18: 1,971 shares sold @ $111.36 = $219,486
• Total shares sold: 3,055; total proceeds ≈ $338,673.
• Footnotes:
  • F1: Sales were part of a sell-to-cover program to satisfy tax withholding on vested stock awards.
  • F2: Per-share prices reflect amounts attributed to all participants in the sell-to-cover program on each date.
• Shares owned after the transactions: Not specified in the provided filing summary.
• Filing: Report filed 2026-08-19 covering transactions on 2026-08-17 and 2026-08-18; appears to have been filed promptly under Form 4 timing rules (no late filing noted).

Context
Sell-to-cover transactions are a common administrative step when restricted stock or other awards vest; they are tax-related disposals and do not necessarily indicate a change in the insider’s view of the company. These were sales (S) to cover withholding, not open-market purchases or option exercises.