William Blair Investment Management, Llc - Dec 31, 2024 SCHEDULE 13G/A Report for MERCURY SYSTEMS INC Common Stock (MRCY)

Filing Manager: WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Reporting Manager: WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Security: MERCURY SYSTEMS INC Common Stock
Symbol: MRCY
Shares outstanding: 59.6M shares
Disclosed Ownership: 6.43M shares
Ownership: 10.8%
Form type: SCHEDULE 13G/A
Date filed: 2/12/2025, 05:52 PM
Date of event: Dec 31, 2024
Next filing: May 9, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	10.8%	6.43M	5.76M	0	Stephanie Braming	Partner, Global Head of Investment Management