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Whitehawk CSO granted 85,887 options, 85,887 RSUs

Form 4 shows WHWK’s Chief Scientific Officer receiving new four-year vesting stock options and RSUs as part of equity compensation.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Whitehawk Therapeutics, Inc. (symbol: WHWK) is the issuer of record for a Form 4 filing submitted to the SEC. Dornan David reported acquisition or exercise transactions in this Form 4 filing.

Whitehawk Therapeutics, Inc. (WHWK) reported that Chief Scientific Officer David Dornan received new equity awards. On September 15, 2026 he was granted options to purchase 85,887 shares of common stock at $4.09 per share, expiring September 15, 2036, plus 85,887 restricted stock units. Both awards vest over four years starting from a Vesting Commencement Date of September 15, 2026, contingent on continued service, and no Rule 10b5-1 trading plan is reported.

Positive

  • None.

Negative

  • None.
Insider Dornan David
Role Chief Scientific Officer
Type Security Shares Price Value
Grant/Award Stock Option (right to buy) F1 85,887 $0.00 $0.00
Grant/Award Restricted Stock Units F2, F3 85,887 $0.00 $0.00
Holdings After Transaction: Stock Option (right to buy) — 85,887 contracts (Direct); Restricted Stock Units — 85,887 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.
Stock options granted 85,887 options Options to purchase common stock granted to the Chief Scientific Officer on September 15, 2026
Option exercise price $4.09 per share Exercise price for the 85,887 stock options granted on September 15, 2026
Option expiration date September 15, 2036 Expiration date of the stock options granted to the Chief Scientific Officer
Restricted stock units granted 85,887 RSUs Restricted stock units granted on September 15, 2026, each for one share of common stock
Vesting commencement date September 15, 2026 Vesting Commencement Date for both the stock option and RSU awards
Initial option vesting 25% after one year Twenty five percent of option shares vest on the one‑year anniversary of the Vesting Commencement Date
RSU annual vesting 25% per year over four years RSUs vest in four equal annual installments starting one year after September 15, 2026
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.
Service Provider financial
"Subject to the Reporting Person continuing to be a Service Provider"
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.

FAQ

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

What equity awards did WHWK grant to its Chief Scientific Officer in this Form 4?

Whitehawk Therapeutics granted Chief Scientific Officer David Dornan 85,887 stock options at $4.09 per share and 85,887 restricted stock units on September 15, 2026, each settled in common stock and subject to multi‑year vesting conditions.

What are the vesting terms of the stock options reported by WHWK (WHWK)?

The options vest over four years from a Vesting Commencement Date of September 15, 2026: 25% on the one‑year anniversary, then 1/48 of the total each month so that all 85,887 option shares are fully vested on the four‑year anniversary, subject to continued service.

How do the WHWK restricted stock units for the Chief Scientific Officer vest?

The 85,887 restricted stock units vest in four equal annual installments: 25% on the one‑year anniversary of the September 15, 2026 Vesting Commencement Date, and 25% on each of the next three anniversaries, subject to continued service.

What does each restricted stock unit represent in the WHWK Form 4?

Each restricted stock unit represents a contingent right to receive one share of Whitehawk Therapeutics, Inc. common stock, deliverable upon vesting in accordance with the award’s schedule and conditions.

When do the WHWK stock options reported for the Chief Scientific Officer expire?

The stock options granted to the Chief Scientific Officer covering 85,887 shares of Whitehawk Therapeutics common stock have an expiration date of September 15, 2036, if not earlier exercised or terminated under the plan terms.

Were the WHWK insider grants made under a Rule 10b5-1 trading plan?

No. The Form 4 indicates that the Rule 10b5‑1 plan checkbox is not marked, so the reported grants to the Chief Scientific Officer are not stated to be made under a Rule 10b5‑1 trading plan.

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

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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*
Dornan David

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Scientific 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)
XForm 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)
CodeVAmount(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (right to buy)$4.0909/15/2026A85,887 (1)09/15/2036Common Stock85,887$085,887D
Restricted Stock Units(2)09/15/2026A85,887 (3) (3)Common Stock85,887$085,887D
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-Fact09/15/2026
** Signature of Reporting PersonDate
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)

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