James B. Bucher - 01 Oct 2025 Form 4 Insider Report for Zentalis Pharmaceuticals, Inc. (ZNTL)

Role: Chief Legal Officer
Signature: /s/ James Bucher
Issuer symbol: ZNTL
Transactions as of: 01 Oct 2025
Net transactions value: $0
Form type: 4
Filing time: 01 Oct 2025, 18:40:25 UTC
Previous filing: 22 Sep 2025
Next filing: 09 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Bucher James B	Chief Legal Officer	C/O ZENTALIS PHARMACEUTICALS, INC., 10275 SCIENCE CENTER DRIVE, SUITE 200, SAN DIEGO	/s/ James Bucher	01 Oct 2025	0001664928

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ZNTL	Stock Option (Right to Buy)	Award	$0	+400,000		$0.000000	400,000	01 Oct 2025	Common Stock	400,000	$1.54	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The options will vest over a four-year period as follows: 25% of the options will vest on October 1, 2026, with the remaining 75% vesting in substantially equal monthly installments thereafter until the options are fully vested, subject to the Reporting Person's continued service with the Issuer.