Caley Castelein - 12 Jun 2025 Form 4 Insider Report for Whitehawk Therapeutics, Inc. (WHWK)

Reporting relationship: Director
Issuer ticker: WHWK
Reported as of: 12 Jun 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 16 Jun 2025, 16:53:41 UTC
Prior SEC filing: 06 Jun 2025
Next SEC filing: 17 Oct 2025
Source filing: View source filing
Reporting owner signature: /s/ Stephen Rodin, as Attorney-in-Fact

Key filing fact

Caley Castelein filed Form 4 for Whitehawk Therapeutics, Inc. (WHWK) on 16 Jun 2025.

Key facts

This page summarizes Caley Castelein's Form 4 filing for Whitehawk Therapeutics, Inc. (WHWK).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 16 Jun 2025, 16:53.

Change

Previous filing in this sequence was filed on 06 Jun 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001355758 Primary reporting owner

Castelein Caley

Relationship: Director
Address: C/O WHITEHAWK THERAPEUTICS, INC., MORRISTOWN
Signature: /s/ Stephen Rodin, as Attorney-in-Fact
Signature date: 16 Jun 2025

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WHWK transaction Derivative

Stock Option (right to buy)

Award

Transaction value: $0
Shares: +40,006
Change %
Price: $0.000000
Shares after: 40,006
Date: 12 Jun 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 40,006
Exercise price: $2.04
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2021 Equity Incentive Plan) through such applicable date, one hundred percent (100%) of the shares subject to the option shall vest on the earlier of (i) the one (1) year anniversary of the Date of Grant or (ii) the day immediately prior to the next annual meeting of stockholders following the Date of Grant. "Date of Grant" shall mean June 12, 2025.

SEC remarks

Exhibit 24 - Power of Attorney