---
schema_version: "secwatch.filing_event.v1"
accession: "0001485003-21-000226"
form_type: "8-K"
ticker: "CARM"
cik: "0001485003"
company_name: "Carisma Therapeutics Inc."
filed_at: "2021-11-23T23:59:59+00:00"
generated_at: "2026-06-28T05:45:03.322328+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Sesen Bio director Jane Pritchett Henderson resigns from Board, becomes CEO Advisor

## Summary
- Jane Pritchett Henderson resigned from Sesen Bio's Board effective Nov. 22, 2021, to focus on other roles including CFO at Adagio Therapeutics.
- She transitions to CEO Advisor role; no disagreement with company policies or operations.
- Jason Keyes named Chair of Audit Committee; Board Chair Jay Duker assumes Chair of Compensation Committee.
- Board now has six directors, all independent except CEO Thomas Cannell.
- Henderson joins five other executives already serving as CEO Advisors.

## SEC filing metadata
- accession: 0001485003-21-000226
- form_type: 8-K
- ticker: CARM
- cik: 0001485003
- company_name: Carisma Therapeutics Inc.
- filed_at: 2021-11-23T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1485003/000148500321000226/0001485003-21-000226-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1485003/000148500321000226/sesn-20211122.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001485003-21-000226
- JSON: https://secwatch.observer/filing/0001485003-21-000226.json
- Plain text: https://secwatch.observer/filing/0001485003-21-000226.txt

## Key facts
- Executive change
  Jane Pritchett Henderson resigned as Director at Carisma Therapeutics Inc..
  - Action: resigned
  - Role: Director
  source text: Jane Pritchett Henderson resigned from the Company’s Board of Directors (the “Board”) effective November 22, 2021
  evidence_url: https://www.sec.gov/Archives/edgar/data/1485003/000148500321000226/0001485003-21-000226-index.htm

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