William L. Ballhaus

Companies

• Mercury SystemsChair Feb 13, 2024 to now¹
• Mercury SystemsChief executive officer Aug 21, 2023 to now²
• Mercury SystemsPresident Aug 21, 2023 to now²
• Mercury SystemsBoard member Jun 30, 2022 to Oct 30, 2023³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Mercury Systems MRCY368,888 shares⁴$28.0M at $76.01Sep 15, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 26, 2026Sold 10,814 shares at $89.74 of Mercury Systems⁵
• Aug 26, 2026Sold 38,276 shares at $88.91 of Mercury Systems⁵
• Aug 26, 2026Exercised options 68,476 shares at $43.00 of Mercury Systems⁵
• Aug 25, 2026Sold 3,448 shares at $87.99 of Mercury Systems⁵
• Aug 25, 2026Sold 107,628 shares at $87.09 of Mercury Systems⁵
• Aug 25, 2026Exercised options 153,676 shares at $43.00 of Mercury Systems⁵
• Aug 24, 2026Sold 2,738 shares at $90.60 of Mercury Systems⁶
• Aug 24, 2026Sold 105,471 shares at $89.47 of Mercury Systems⁶
• Aug 24, 2026Exercised options 11,348 shares at $43.00 of Mercury Systems⁶
• Aug 24, 2026Exercised options 140,650 shares at $42.00 of Mercury Systems⁶
• Aug 21, 2026Sold 204 shares at $93.51 of Mercury Systems⁶
• Aug 21, 2026Sold 64,796 shares at $92.40 of Mercury Systems⁶
• Aug 21, 2026Exercised options 92,850 shares at $42.00 of Mercury Systems⁶
• Aug 20, 2026Sold 22,010 shares at $97.67 of Mercury Systems⁷
• Aug 19, 2026Sold 26,802 shares at $100.31 of Mercury Systems⁷
• Aug 18, 2026Sold 24,144 shares at $111.36 of Mercury Systems⁸
• Aug 17, 2026Granted 23,629 shares of Mercury Systems⁴
• Aug 17, 2026Sold 3,536 shares at $109.95 of Mercury Systems⁸
• Aug 14, 2026Returned to company 70,287 shares of Mercury Systems⁹
• Aug 19, 2025Sold 13,050 shares at $64.46 of Mercury Systems¹⁰
• Aug 18, 2025Sold 10,395 shares at $66.52 of Mercury Systems¹⁰
• Aug 15, 2025Granted 44,940 shares of Mercury Systems¹¹
• Aug 19, 2024Sold 6,549 shares at $39.49 of Mercury Systems¹²
• Aug 15, 2024Granted 69,006 shares of Mercury Systems¹³
• Aug 15, 2024Granted 69,006 shares of Mercury Systems¹⁴