Common Contracts

ADDENDUM A TO MICHAEL J. VASCONCELLES OFFER LETTER CHANGE IN CONTROL SEVERANCE AGREEMENT

Change in Control Severance Agreement • March 1st, 2023 • ImmunoGen, Inc. • Pharmaceutical preparations • Massachusetts

• Contract Type
  Change in Control Severance Agreement
• Filed
  March 1st, 2023
• Company
  ImmunoGen, Inc.
• Industry
  Pharmaceutical preparations
• Jurisdiction
  Massachusetts

This Agreement is entered into as of the 29th day of December, 2022 (the “Effective Date”) by and between ImmunoGen, Inc., a Massachusetts corporation (the “Company”), and Michael Vasconcelles (the “Executive”).

CHANGE IN CONTROL SEVERANCE AGREEMENT

Change in Control Severance Agreement • March 1st, 2021 • ImmunoGen, Inc. • Pharmaceutical preparations • Massachusetts

• Contract Type
  Change in Control Severance Agreement
• Filed
  March 1st, 2021
• Company
  ImmunoGen, Inc.
• Industry
  Pharmaceutical preparations
• Jurisdiction
  Massachusetts

This Agreement is entered into as of the 1st day of June, 2020 (the “Effective Date”) by and between ImmunoGen, Inc., a Massachusetts corporation (the “Company”), and Stacy A. Coen (the “Executive”).

CHANGE IN CONTROL SEVERANCE AGREEMENT

Change in Control Severance Agreement • August 5th, 2020 • ImmunoGen, Inc. • Pharmaceutical preparations • Massachusetts

• Contract Type
  Change in Control Severance Agreement
• Filed
  August 5th, 2020
• Company
  ImmunoGen, Inc.
• Industry
  Pharmaceutical preparations
• Jurisdiction
  Massachusetts

This Agreement is entered into as of the 20th day of July, 2020 (the “Effective Date”) by and between ImmunoGen, Inc., a Massachusetts corporation (the “Company”), and Susan Altschuller (the “Executive”).