Whitehawk CFO granted 118K options, 118K RSUs

Whitehawk Therapeutics granted its CFO 118,476 stock options at $4.09 and 118,476 RSUs that vest over four years, all contingent on continued service.

Rhea-AI Filing Summary

Whitehawk Therapeutics, Inc. (WHWK) reported that its Chief Financial Officer, Scott M. Giacobello, received two equity awards on September 15, 2026. He was granted stock options covering 118,476 shares of common stock at an exercise price of $4.09 per share, and a separate award of 118,476 Restricted Stock Units, each RSU representing one share of common stock. Both awards vest over time starting from a Vesting Commencement Date of September 15, 2026, subject to his continued service, with the options vesting monthly over four years and the RSUs vesting in four equal annual installments.

Insider Trade Summary

Grant/Award: 236,952 shares

Grant/Award 2 txns

Insider Giacobello Scott M.

Role CHIEF FINANCIAL OFFICER

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (right to buy) F1	118,476	$0.00	$0.00
Grant/Award	Restricted Stock Units F2, F3	118,476	$0.00	$0.00

Holdings After Transaction: Stock Option (right to buy) — 118,476 contracts (Direct); Restricted Stock Units — 118,476 contracts (Direct)

Footnotes (3)

1. F1. Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2021 Equity Incentive Plan) through each applicable date, twenty five percent (25%) of the shares subject to the option shall vest on the one-year anniversary of the Vesting Commencement Date and 1/48th of the total shares subject to the option shall vest every month thereafter such that all shares subject to the option shall be fully vested on the four-year anniversary of the Vesting Commencement Date. "Vesting Commencement Date" shall mean September 15, 2026.
2. F2. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Whitehawk Therapeutics, Inc. Common Stock.
3. F3. Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2021 Equity Incentive Plan) through each applicable date, twenty five percent (25%) of the shares subject to the award shall vest on the one-year anniversary of the Vesting Commencement Date, and twenty five percent (25%) of the shares subject to the award shall vest on each of the next three Vesting Commencement Date anniversaries thereafter. "Vesting Commencement Date" shall mean September 15, 2026.

Key Figures

Stock options granted: 118,476 options Option exercise price: $4.09 per share Option expiration date: September 15, 2036 +3 more

6 metrics

Stock options granted 118,476 options Options to purchase common stock granted to CFO on September 15, 2026

Option exercise price $4.09 per share Exercise price for 118,476 stock options granted on September 15, 2026

Option expiration date September 15, 2036 Expiration date for the 118,476 stock options

RSUs granted 118,476 RSUs Restricted Stock Units awarded to CFO on September 15, 2026

Vesting commencement date September 15, 2026 Start date for vesting of both stock options and RSUs

Initial vesting proportion 25% Portion of each award that vests one year after the Vesting Commencement Date

Key Terms

Restricted Stock Units, Vesting Commencement Date, Equity Incentive Plan, Service Provider

4 terms

Restricted Stock Units financial

"Each restricted stock unit ("RSU") represents a contingent right to receive one share"

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.

Vesting Commencement Date financial

""Vesting Commencement Date" shall mean September 15, 2026."

The vesting commencement date is the starting point when an employee begins earning ownership rights to their promised benefits, such as stock options or retirement contributions. Think of it like the day a savings account is opened—only after this date do the benefits start to grow and become fully available over time. It matters to investors because it marks when the clock begins ticking toward full ownership, affecting the timing and value of these benefits.

Equity Incentive Plan financial

"as defined in the Issuer's 2021 Equity Incentive Plan"

An equity incentive plan is a program that gives employees, executives or directors the right to receive company stock or options to buy stock as part of their pay. Think of it as offering slices of future company profit to motivate people to boost long‑term performance; for investors it matters because it can align employee goals with shareholder value but also increases the number of shares outstanding, which can dilute existing ownership.

Service Provider financial

"Subject to the Reporting Person continuing to be a Service Provider"

FAQ

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

What equity awards did WHWK grant to its CFO on September 15, 2026?

Whitehawk Therapeutics granted CFO Scott M. Giacobello 118,476 stock options at an exercise price of $4.09 per share and 118,476 RSUs, each representing one share of common stock, all awarded on September 15, 2026.

What is the vesting schedule for the WHWK stock options granted to the CFO?

The stock options vest starting September 15, 2026: 25% on the one-year anniversary of the Vesting Commencement Date, then 1/48th of the total shares vest monthly thereafter, so all shares are fully vested on the four-year anniversary.

How do the WHWK RSUs granted to the CFO vest?

The 118,476 RSUs vest in four equal annual tranches: 25% on the one-year anniversary of September 15, 2026, and 25% on each of the next three anniversaries, subject to the CFO continuing to be a Service Provider.

What does each RSU represent in the WHWK Form 4 filing?

Each Restricted Stock Unit in this award represents a contingent right to receive one share of Whitehawk Therapeutics, Inc. common stock, as long as the vesting conditions and continued service requirements are satisfied.

When do the WHWK CFO stock options expire?

The stock options granted to the CFO covering 118,476 shares of common stock have an expiration date of September 15, 2036, subject to the terms of Whitehawk Therapeutics’ 2021 Equity Incentive Plan and the award agreement.

Were the WHWK CFO equity awards granted under a Rule 10b5-1 trading plan?

No Rule 10b5-1 trading plan is reported for these transactions; the document’s Rule 10b5-1 checkbox is not affirmed for the equity awards granted on September 15, 2026.

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

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Available on EDGAR 09/15/2026 - 07:07 PM Accepted by SEC EDGAR 09/15/2026 - 07:07 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^*

Giacobello Scott M.

(Last) (First) (Middle)

C/O WHITEHAWK THERAPEUTICS, INC.

2 HEADQUARTERS PLAZA, EAST BUILDING, 11T

(Street)

MORRISTOWN NEW JERSEY 07960

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Whitehawk Therapeutics, Inc. [ WHWK ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2026

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

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
Stock Option (right to buy)	$4.09	09/15/2026		A		118,476		(1)	09/15/2036	Common Stock	118,476	$0	118,476	D
Restricted Stock Units	(2)	09/15/2026		A		118,476		(3)	(3)	Common Stock	118,476	$0	118,476	D

Explanation of Responses:

1. Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2021 Equity Incentive Plan) through each applicable date, twenty five percent (25%) of the shares subject to the option shall vest on the one-year anniversary of the Vesting Commencement Date and 1/48th of the total shares subject to the option shall vest every month thereafter such that all shares subject to the option shall be fully vested on the four-year anniversary of the Vesting Commencement Date. "Vesting Commencement Date" shall mean September 15, 2026.

2. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Whitehawk Therapeutics, Inc. Common Stock.

3. Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2021 Equity Incentive Plan) through each applicable date, twenty five percent (25%) of the shares subject to the award shall vest on the one-year anniversary of the Vesting Commencement Date, and twenty five percent (25%) of the shares subject to the award shall vest on each of the next three Vesting Commencement Date anniversaries thereafter. "Vesting Commencement Date" shall mean September 15, 2026.

	/s/ Stephen Rodin, as Attorney-in-Fact	09/15/2026
	** 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)