Ballhaus William L bought MRCY
August 24, 2026 · Form 4 insider transaction
Ballhaus William L bought 140,650 shares of Mercury Systems, Inc. at $42.00 per share, a transaction worth $5.91M. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 1 day after the transaction.
Direction
Acquired (buy-side)
Shares
140,650
Price
$42.00
Total value
$5.91M
InsiderBallhaus William L
Role—
CompanyMercury Systems, Inc. (MRCY)
SecurityCommon Stock
Transaction codeM: Option exercise
Transaction dateAugust 24, 2026
Filing dateAugust 25, 2026
Shares owned after396,697
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
Represents the exercise of a stock option award scheduled to expire on August 17, 2027.