---
schema_version: "secwatch.filing_event.v1"
accession: "0001113148-23-000018"
form_type: "8-K"
ticker: null
cik: "0001113148"
company_name: "INFINITY PHARMACEUTICALS, INC."
filed_at: "2023-09-29T23:59:59+00:00"
generated_at: "2026-06-10T06:47:16.344534+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 1.0
calibrated_materiality_score: 1.0
confidence: "high"
source: SEC EDGAR
---

# Infinity Pharmaceuticals files Chapter 11; all shares expected to be canceled

## Summary
- Filed voluntary Chapter 11 petition in Delaware on Sept 29, 2023 (Case No. 23-11640).
- Engaged Sonoran Capital Advisors and SSG Advisors for restructuring and potential asset sale.
- Expects cancellation of all outstanding common stock without any payment or distribution.
- Chair Adelene Perkins resigned from Board on Sept 28, 2023; not due to any disagreement.

## SEC filing metadata
- accession: 0001113148-23-000018
- form_type: 8-K
- cik: 0001113148
- company_name: INFINITY PHARMACEUTICALS, INC.
- filed_at: 2023-09-29T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 1.0
- calibrated_materiality_score: 1.0
- confidence: high
- sec_items: 1.03, 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1113148/000111314823000018/0001113148-23-000018-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1113148/000111314823000018/infi-20230928.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001113148-23-000018
- JSON: https://secwatch.observer/filing/0001113148-23-000018.json
- Plain text: https://secwatch.observer/filing/0001113148-23-000018.txt

## Key facts
- Distress & Bankruptcy
  INFINITY PHARMACEUTICALS, INC. entered chapter 11 in United States Bankruptcy Court for the District of Delaware (petition 2023-09-29).
  - Proceeding: chapter 11
  - Court: United States Bankruptcy Court for the District of Delaware
  - Petition: 2023-09-29
  source text: On September 29, 2023, after considering all strategic alternatives, Infinity Pharmaceuticals, Inc. (the “Company”) filed a voluntary petition for relief under the provisions of Chapter 11 of Title 11 of the United States Code (the “Code”) in the United States Bankruptcy Court for the District of Delaware (the “Court”). The bankruptcy case is being administered under the caption In re Infinity Pharmaceuticals, Inc., et al (Case No. 23-11640).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1113148/000111314823000018/0001113148-23-000018-index.htm
- Executive change
  Adelene Perkins resigned as Chair of the Board at INFINITY PHARMACEUTICALS, INC..
  - Action: resigned
  - Role: Chair of the Board
  source text: On September 28, 2023 and following approval by the Board of Directors (the “Board”) of the Company of the Chapter 11 filing and related actions, Adelene Perkins resigned from the Board effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1113148/000111314823000018/0001113148-23-000018-index.htm

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