Matrix Capital Management Company, LP - Mar 31, 2025 SCHEDULE 13G/A Report for Altair Engineering Inc. Class A Common Stock, $0.0001 par value per share (ALTR)

Filing Manager: Matrix Capital Management Company, LP
Reporting Manager: Matrix Capital Management Company, LP
Security: Altair Engineering Inc. Class A Common Stock, $0.0001 par value per share
Symbol: ALTR
Disclosed Ownership: 0 shares
Ownership: 0%
Form type: SCHEDULE 13G/A
Date filed: 4/7/2025, 04:15 PM
Date of event: Mar 31, 2025
SEC: View on sec.gov

Reporting Managers (2)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Matrix Capital Management Company, LP	0%	0	0	0	/s/ David E. Goel	David E. Goel, Managing General Partner
David E. Goel	0%	0	0	0	/s/ David E. Goel	David E. Goel, individually

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