MERCURY SYS INC

Ticker: MRCY CUSIP: 589378108 Class: Common Stock

MGO ONE SEVEN LLC's Holding History (CIK: 0001731444)

Note: Option positions (PUT/CALL) are excluded.

Q4 2018

Shares 176 Value ($000) $8 Avg Close $48.76 Range $41.16 - $55.82

Q1 2018

Shares 176 Value ($000) $9 Avg Close $47.69 Range $41.64 - $52.59

Q4 2017

Shares 176 Value ($000) $9 Avg Close $51.31 Range $47.69 - $55.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	176	$8	$48.76	$41.16 - $55.82
Q1 2018	176	$9	$47.69	$41.64 - $52.59
Q4 2017	176	$9	$51.31	$47.69 - $55.00