Zentalis director granted 57,100 RSUs

Walker Luke Nathaniel reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Walker Luke Nathaniel reported acquisition or exercise transactions in this Form 4 filing.

Zentalis Pharmaceuticals director Luke Nathaniel Walker received an equity award of 57,100 shares of common stock in the form of restricted stock units. These units were granted at no cash cost and increase his direct holdings to 201,384 shares of common stock.

The restricted stock units each represent a contingent right to receive one share of common stock. They will vest on the earlier of June 16, 2027 or the next annual meeting of stockholders, provided Walker continues to serve on the board through the vesting date. This is a compensation-related grant rather than an open-market purchase.

Insider Trade Summary

Grant/Award: 57,100 shares

Grant/Award 1 txn

Insider Walker Luke Nathaniel

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	57,100	$0.00	$0.00

Holdings After Transaction: Common Stock — 201,384 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units granted pursuant to the Issuer's Non-Employee Director Compensation Program, each of which represents a contingent right to receive one share of common stock, and which will vest on the first to occur of (a) June 16, 2027 or (b) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continued service on the Issuer's Board of Directors through such vesting date.

Key Figures

RSU grant size: 57,100 shares Holdings after grant: 201,384 shares Vesting date: June 16, 2027

3 metrics

RSU grant size 57,100 shares Restricted stock units granted to director on June 16, 2026

Holdings after grant 201,384 shares Total common stock held directly following the transaction

Vesting date June 16, 2027 Earlier of this date or next annual stockholder meeting, subject to continued service

Key Terms

restricted stock units, Non-Employee Director Compensation Program, contingent right to receive one share of common stock, vesting date

4 terms

restricted stock units financial

"Represents restricted stock units granted pursuant to the Issuer's Non-Employee Director Compensation Program"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Non-Employee Director Compensation Program financial

"restricted stock units granted pursuant to the Issuer's Non-Employee Director Compensation Program"

contingent right to receive one share of common stock financial

"each of which represents a contingent right to receive one share of common stock"

vesting date financial

"subject to the Reporting Person's continued service on the Issuer's Board of Directors through such vesting date"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Luke Nathaniel Walker acquire in Zentalis Pharmaceuticals (ZNTL)?

Luke Nathaniel Walker received 57,100 restricted stock units in Zentalis Pharmaceuticals as a compensation grant. Each unit represents a contingent right to one share of common stock, rather than a cash transaction or open-market share purchase.

How many Zentalis (ZNTL) shares does Luke Nathaniel Walker hold after this Form 4?

After the grant, Luke Nathaniel Walker directly holds 201,384 shares of Zentalis common stock. This total includes the newly awarded 57,100 restricted stock units, which are equity-based compensation rather than shares bought on the open market.

When do Luke Nathaniel Walker’s new Zentalis (ZNTL) restricted stock units vest?

The restricted stock units vest on the first to occur of June 16, 2027 or the next annual meeting of Zentalis stockholders. Vesting is conditioned on Walker’s continued service on the company’s board of directors through the applicable vesting date.

Is Luke Nathaniel Walker’s Zentalis (ZNTL) transaction a market buy or compensation grant?

The transaction is a compensation-related grant, not an open-market purchase. Code A on the Form 4 reflects a grant or award of 57,100 restricted stock units under Zentalis’ Non-Employee Director Compensation Program at no cash cost per share.

What is the nature of the restricted stock units granted to Luke Nathaniel Walker at Zentalis (ZNTL)?

Each restricted stock unit represents a contingent right to receive one Zentalis common share. The award was granted under the Non-Employee Director Compensation Program and will only convert into actual shares if vesting conditions tied to continued board service are met.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/18/2026 - 04:07 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Walker Luke Nathaniel

(Last) (First) (Middle)

C/O ZENTALIS PHARMACEUTICALS, INC.

10275 SCIENCE CENTER DRIVE, SUITE 200

(Street)

SAN DIEGO CALIFORNIA 92121

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Zentalis Pharmaceuticals, Inc. [ ZNTL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/16/2026		A		57,100(1)	A	$0	201,384	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents restricted stock units granted pursuant to the Issuer's Non-Employee Director Compensation Program, each of which represents a contingent right to receive one share of common stock, and which will vest on the first to occur of (a) June 16, 2027 or (b) the next occurring annual meeting of the Issuer's stockholders, subject to the Reporting Person's continued service on the Issuer's Board of Directors through such vesting date.

Remarks:

Exhibit 24 - Power of Attorney

	James B. Bucher, attorney-in-fact for Luke Walker	06/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)