WHWK: Notice of Proposed Sale of Common Stock

Whitehawk Therapeutics submitted a Form 144 notice covering proposed sales of Common Stock and Restricted Stock Units.

Accepted by SEC EDGAR 04/02/2026 - 09:35 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Whitehawk Therapeutics submitted a Form 144 notice covering proposed sales of Common Stock and Restricted Stock Units.

The filing lists 775,828 Restricted Stock Units with an entry date of 04/01/2026 and reports a prior sale of 5,100 shares on 03/02/2026 for $16,878.96.

Insights

Securities Compliance Counsel

Form 144 records proposed resale activity and a recent small open-market sale.

Form 144 is a regulatory notice used to report proposed sales by affiliates or insiders. The filing here lists 775,828 Restricted Stock Units dated 04/01/2026 and a reported sale of 5,100 shares on 03/02/2026 for $16,878.96. This reflects routine disclosure obligations rather than an executed large distribution.

Timing and exact planned methods for resale are not provided in the excerpt; subsequent filings may detail sale mechanics or confirm execution. Cash‑flow treatment is not specified in the provided excerpt.

Key Figures

Restricted Stock Units: 775,828 units Shares sold (past 3 months): 5,100 shares Proceeds reported: $16,878.96 +1 more

4 metrics

Restricted Stock Units 775,828 units listed with date <date>04/01/2026</date>

Shares sold (past 3 months) 5,100 shares sale dated <date>03/02/2026</date>

Proceeds reported $16,878.96 amount tied to the 5,100-share sale on <date>03/02/2026</date>

Form type Form 144 notice of proposed sale of securities

Key Terms

Form 144, Restricted Stock Units, Common Stock

3 terms

Form 144 regulatory

"submitted a Form 144 notice covering proposed sales"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Units financial

"775,828 Restricted Stock Units with an entry date of 04/01/2026"

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.

Common Stock financial

"proposed sales of Common Stock and Restricted Stock Units"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

What does WHWK's Form 144 disclose about proposed sales?

The filing reports proposed sales of Common Stock and Restricted Stock Units. It lists 775,828 Restricted Stock Units with an entry date of 04/01/2026 as part of the disclosure.

How many shares were sold recently by an affiliated person on WHWK filings?

The filing shows a sale of 5,100 shares on 03/02/2026 for $16,878.96. This is reported in the "Securities Sold During The Past 3 Months" section.

Does the Form 144 state who is selling WHWK securities?

The excerpt names an individual associated with a sale: David James Lennon is listed with the sale of 5,100 shares on 03/02/2026. Other seller identities are not specified in the provided excerpt.

Are the sale methods or proceeds destination shown in the WHWK excerpt?

No. The excerpt does not specify sale methods or who receives proceeds. The filing lists security types and counts but does not provide plan-of-distribution or proceeds recipients in the provided text.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001995275
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Whitehawk Therapeutics, Inc.
SEC File Number	001-38560
Address of Issuer	2 HEADQUARTERS PLAZA EAST BUILDING, 11TH FLOOR MORRISTOWN NEW JERSEY 07960
Phone	551-321-2234
Name of Person for Whose Account the Securities are To Be Sold	Lennon David James
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common Stock	E-TRADE Financial Corporation 3 Edison Drive Alpharetta GA 30005	297421	1034398.68	47196564	04/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common Stock	04/01/2026	Restricted Stock Units	Issuer			775828	04/01/2026	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
David James Lennon c/o WHITEHAWK THERAPEUTICS, INC. 2 HEADQUARTERS PLAZA, EAST BUILDING, 11T MORRISTOWN NJ 07960	Common Stock	03/02/2026	5100	16878.96

144: Remarks and Signature

Remarks	Shares to be sold to cover withholding taxes upon vesting of restricted stock unit award
Date of Notice	04/02/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Stephen Rodin, as Attorney-in-Fact
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)