MERCURY SYS INC

Ticker: MRCY CUSIP: 589378108 Class: Common Stock

SIRIOS CAPITAL MANAGEMENT L P's Holding History (CIK: 0001104883)

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

Q1 2021

Shares 96,407 Value ($000) $6,811 Avg Close $72.27 Range $59.88 - $88.80

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	96,407	$6,811	$72.27	$59.88 - $88.80