Matrix Capital Management Company, LP - 15 Dec 2025 SCHEDULE 13D/A Report for Zentalis Pharmaceuticals, Inc. Common Stock, par value $0.001 per share (ZNTL)

Filing Manager: Matrix Capital Management Company, LP
Reporting Manager: Matrix Capital Management Company, LP
Security: Zentalis Pharmaceuticals, Inc. Common Stock, par value $0.001 per share
Symbol: ZNTL
Shares outstanding: 64,729,188 shares
Disclosed Ownership: 6,459,973 shares
Ownership: 10%
Form type: SCHEDULE 13D/A
Filing time: 15 Dec 2025, 17:16:18 UTC
Date of event: 15 Dec 2025
Next filing: 02 Jan 2026
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	10%	6,459,973	0	6,459,973	/s/ Gregory A. Brown	Gregory A. Brown, General Counsel, Chief Compliance Officer	0001410830
David E. Goel	10%	6,459,973	0	6,459,973	/s/ David E. Goel	David E. Goel, Individually	0001548144