BALLHAUS WILLIAM L

PrivateCIK: 1436044
Location

ANDOVER, MA

BALLHAUS WILLIAM L sold 30.7% of their position (160.17K shares) of MERCURY SYSTEMS INC on the open market

Open‑market sale worth $14.05M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 4 sales
InsiderBALLHAUS WILLIAM LCIK 1436044
IssuerMERCURY SYSTEMS INCCIK 1049521
Director
Since Jun 2022
-160.17K
Net shares
Net seller
$14.05M
Total sold
4
Open market trades
0B · 4S
8
Total transactions
222.15K acquired · 382.32K disposed
Non-Derivative Transactions6

Common Stock

Direct
M · Option Exercise

Shares

+153.68K

Price / share

$43.00

Trade value

$6.61M

% of position

51.3%
8/25/2026
299.84K453.51K

Common Stock

Direct
S · Sale

Shares

107.63K

Price / share

$87.09

Trade value

$9.37M

% of position

23.7%
8/25/2026
453.51K345.88K

Common Stock

Direct
S · Sale

Shares

3.45K

Price / share

$87.99

Trade value

$303.40K

% of position

1.0%
8/25/2026
345.88K342.44K

Common Stock

Direct
M · Option Exercise

Shares

+68.48K

Price / share

$43.00

Trade value

$2.94M

% of position

20.0%
8/26/2026
342.44K410.91K

Common Stock

Direct
S · Sale

Shares

38.28K

Price / share

$88.91

Trade value

$3.40M

% of position

9.3%
8/26/2026
410.91K372.64K

Common Stock

Direct
S · Sale

Shares

10.81K

Price / share

$89.74

Trade value

$970.49K

% of position

2.9%
8/26/2026
372.64K361.82K
Total

Net shares

+61.99K

Net value

-$4.50M

Derivative Transactions2

Employee Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

153.68K shares

Shares

153.68K

Strike price

43.00

Held after

68.48K

Exercisable

8/25/2026

Employee Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

68.48K shares

Shares

68.48K

Strike price

43.00

Held after

0.00

Exercisable

8/26/2026
Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect
Shares owned7.07K

Common Stock

Indirect
Shares owned1.40K
Total
8.47K indirect8.47K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported