Immunome holder plans $334K Rule 144 stock sale

Form 144 reports Jack P. Higgins’ planned Rule 144 sale of 13,200 Immunome common shares obtained via stock option exercise.

Rhea-AI Filing Summary

Immunome Inc. (IMNM) received a notice that Jack P. Higgins plans to sell up to 13,200 shares of common stock under Rule 144, with Fidelity Brokerage Services LLC acting as broker. The shares relate to a stock option exercise from September 10, 2025, paid in cash.

The filing lists Immunome common stock as quoted on NASDAQ and reports 113,577,629 shares of common stock outstanding, serving as the baseline for this planned sale.

Key Figures

Shares to be sold under Rule 144: 13,200 shares Shares outstanding: 113,577,629 shares Aggregate market value of securities to be sold: $334,224.00 +1 more

4 metrics

Shares to be sold under Rule 144 13,200 shares Maximum Immunome common shares covered by Jack P. Higgins’ Form 144 notice

Shares outstanding 113,577,629 shares Immunome common stock outstanding as referenced in the Form 144

Aggregate market value of securities to be sold $334,224.00 Value associated with the 13,200 Immunome shares listed in the securities information section

Stock option exercise date September 10, 2025 Date on which the 13,200 shares were acquired via stock option exercise for cash

Key Terms

Rule 144, stock option exercise, attorney-in-fact

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

stock option exercise financial

"Common | 09/10/2025 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

attorney-in-fact regulatory

"as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jack P. Higgins"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

What does Immunome Inc. (IMNM)'s latest Form 144 disclose?

It discloses that Jack P. Higgins plans to sell up to 13,200 shares of Immunome Inc. common stock under Rule 144, with Fidelity Brokerage Services LLC as broker. The shares are tied to a stock option exercise completed on September 10, 2025.

How many Immunome (IMNM) shares are covered by this Rule 144 notice?

The notice covers up to 13,200 shares of Immunome common stock for potential sale. These shares stem from a stock option exercise and are to be sold through Fidelity Brokerage Services LLC under Rule 144.

How were the Immunome (IMNM) shares in this Form 144 acquired?

The shares were acquired through a stock option exercise on September 10, 2025, with the consideration described as cash. The issuer in the acquisition entry is listed as Immunome Inc.

Who is the broker for the planned Immunome (IMNM) share sale?

The broker is Fidelity Brokerage Services LLC, listed with its Smithfield, Rhode Island address. The Form 144 is signed by Wade Moss as a duly authorized representative of Fidelity Brokerage Services LLC, acting as attorney-in-fact for Jack P. Higgins.

How many Immunome (IMNM) shares are reported outstanding in the Form 144?

The filing reports 113,577,629 shares of Immunome common stock outstanding. This figure provides context for the 13,200 shares covered by the Rule 144 notice, which represent a small portion of the total outstanding shares.

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

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Available on EDGAR 09/11/2026 - 10:20 AM EDT Accepted by SEC EDGAR 09/11/2026 - 10:20 AM EDT Learn about SEC filing dates

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	0001993684
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	Immunome Inc.
SEC File Number	001-39580
Address of Issuer	18702 N. CREEK PARKWAY SUITE 100 BOTHELL WASHINGTON 98011
Phone	610-321-3700
Name of Person for Whose Account the Securities are To Be Sold	Higgins Jack
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

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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	13200	334224.00	113577629	09/11/2026	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	09/10/2025	Stock Option Exercise	Issuer			13200	09/10/2025	Cash

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/11/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/19/2025
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/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jack P. Higgins
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)