---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-102807"
form_type: "8-K"
ticker: "IMNM"
cik: "0001472012"
company_name: "Immunome Inc."
filed_at: "2023-09-21T23:59:59+00:00"
generated_at: "2026-06-10T10:35:32.780156+00:00"
event_type: "litigation"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Immunome discloses merger-related lawsuits and supplemental proxy disclosures

## Summary
- Two securities lawsuits filed by purported stockholders challenging the merger: Weiss v. Immunome (Sept 7) and Thompson v. Immunome (Sept 8).
- Eleven stockholder demands and one books-and-records demand received regarding disclosure adequacy in the merger proxy.
- Immunome denies wrongdoing but issues supplemental disclosures to avoid litigation costs and potential disruption to the merger.
- Disclosures include details on the Transaction Committee, background discussions, discounted cash flow analysis ranges, and Dr. Siegall's recruitment.
- Exchange ratio implies Immunome stockholders would own ~55% of the combined company on a fully diluted basis before PIPE and option grants.

## SEC filing metadata
- accession: 0001104659-23-102807
- form_type: 8-K
- ticker: IMNM
- cik: 0001472012
- company_name: Immunome Inc.
- filed_at: 2023-09-21T23:59:59+00:00
- event_type: litigation
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1472012/000110465923102807/0001104659-23-102807-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1472012/000110465923102807/tm2326649d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-102807
- JSON: https://secwatch.observer/filing/0001104659-23-102807.json
- Plain text: https://secwatch.observer/filing/0001104659-23-102807.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.