Kinney Horn - 04 Aug 2026 Form 4 Insider Report for Immunome Inc. (IMNM)

Reporting relationship: CHIEF BUSINESS OFFICER
Issuer ticker: IMNM
Reported as of: 04 Aug 2026
Net transaction value: -$2,273,555
SEC form: 4
Accepted by SEC: 06 Aug 2026, 18:30:38 UTC
Prior SEC filing: 27 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Sandra G. Stoneman, Attorney-in-Fact

Key filing fact

Kinney Horn filed Form 4 for Immunome Inc. (IMNM) on 06 Aug 2026.

Key facts

This page summarizes Kinney Horn's Form 4 filing for Immunome Inc. (IMNM).
5 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 06 Aug 2026, 18:30.

Change

Previous filing in this sequence was filed on 27 Jul 2026.
Current net transaction value: -$2,273,555.

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 0001831215 Primary reporting owner

Horn Kinney

Relationship: CHIEF BUSINESS OFFICER
Address: C/O IMMUNOME, INC., 18702 N. CREEK PARKWAY, SUITE 100, BOTHELL
Signature: /s/ Sandra G. Stoneman, Attorney-in-Fact
Signature date: 06 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IMNM transaction

Common Stock

Options Exercise

Transaction value
Shares: +50,366
Change %
Price: $12.92^*
Shares after: 50,366
Date: 04 Aug 2026
Ownership: Direct

IMNM transaction

Common Stock

Options Exercise

Transaction value
Shares: +40,250
Change %: +80%
Price: $10.60^*
Shares after: 90,616
Date: 04 Aug 2026
Ownership: Direct

IMNM transaction

Common Stock

Sale

Transaction value: $2,273,555
Shares: -90,616
Change %: -100%
Price: $25.09
Shares after: 0
Date: 04 Aug 2026
Ownership: Direct
Footnotes: F1, F2

Reported derivative securities

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

IMNM transaction Derivative

Employee Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -50,366
Change %: -39%
Price: $0.000000^*
Shares after: 78,542
Date: 04 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 50,366
Exercise price: $12.92
Footnotes: F3

IMNM transaction Derivative

Employee Stock Option (right to buy)

Options Exercise

Transaction value
Shares: -40,250
Change %: -25%
Price: $0.000000^*
Shares after: 120,750
Date: 04 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 40,250
Exercise price: $10.60
Footnotes: F4

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

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 4 footnotes

Footnote F1

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 30, 2026.

Footnote F2

The weighted average sale price for the transaction report was $25.09, and the range of prices were between $25.00 and $25.295, inclusive. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided.

Footnote F3

25% of the shares subject to the option vested on August 9, 2025, and the remaining shares will vest monthly thereafter over three years.

Footnote F4

25% of the shares subject to the options vested on July 29, 2026, and the remaining shares will vest monthly thereafter over three years.