MERCURY SYS INC

Ticker: MRCY CUSIP: 589378108 Class: Common Stock

Vanguard Personalized Indexing Management, LLC's Holding History (CIK: 0001767306)

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

Q4 2025

Shares 5,843 Value ($000) $427 Avg Close $74.39 Range $65.04 - $85.33

Q3 2025

Shares 3,971 Value ($000) $307 Avg Close $62.18 Range $49.54 - $78.75

Q1 2023

Shares 4,385 Value ($000) $224 Avg Close $50.53 Range $44.14 - $59.13

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,843	$427	$74.39	$65.04 - $85.33
Q3 2025	3,971	$307	$62.18	$49.54 - $78.75
Q1 2023	4,385	$224	$50.53	$44.14 - $59.13