BlackRock, Inc. - 31 Mar 2025 SCHEDULE 13G/A Report for AXCELIS TECHNOLOGIES INC Common Stock (ACLS)

Filing Manager: BlackRock, Inc.
Reporting Manager: BlackRock, Inc.
Security: AXCELIS TECHNOLOGIES INC Common Stock
Symbol: ACLS
Shares outstanding: 32.1M shares
Disclosed Ownership: 4.91M shares
Ownership: 15.3%
Form type: SCHEDULE 13G/A
Filing time: 29 Apr 2025, 16:59:02 UTC
Date of event: 31 Mar 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
BlackRock, Inc.	15.3%	4.91M	4.87M	0	Spencer Fleming	Managing Director