William L. Ballhaus owns 0.62% of Mercury Systems
370,291 shares as of the August 26, 2026 filing, worth $27.5M at the latest close.
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Free.
The stake
0.62%
worth $27.5M at the latest close
Stake rank
#1,039
by dollar value of the stake
Last sale
54 days ago
Aug 26, 2026
Last buy
980 days ago
Feb 12, 2024 · $203,099
William L. Ballhaus owns 0.62% of MERCURY SYSTEMS INC: 370,291 of 60,136,133 shares, worth about $27.5M at the 2026-10-16 close. The stake has moved from 0.02% in 2022 to 0.62% on 2026-08-26, across 6 sales and 2 purchases that moved it since 2016. The last trade that moved it was a discretionary sale of $14.1M on 2026-08-26.
How the stake is held
as of the Aug 26, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Aug 26, 2026 · Form 4 ↗
HELD DIRECTLY
361,822
97.7%
HELD INDIRECTLY · 2 VEHICLES
8,469
2.3%
By Milestone Road Holdings, LLC
7,066
1.9%
401K Plan
1,403
0.4%
THE STAKE
370,291
0.62%