Common Contracts

CERTAIN INFORMATION IN THIS DOCUMENT, MARKED BY [**], HAS BEEN EXCLUDED PURSUANT TO REGULATION S-K, ITEM 601(b)(10)(iv). SUCH EXCLUDED INFORMATION IS NOT MATERIAL AND IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL. ASSUMPTION AGREEMENT

Assumption Agreement • November 4th, 2021 • 2seventy Bio, Inc. • Pharmaceutical preparations • New York

• Contract Type
  Assumption Agreement
• Filed
  November 4th, 2021
• Company
  2seventy Bio, Inc.
• Industry
  Pharmaceutical preparations
• Jurisdiction
  New York

This ASSUMPTION AGREEMENT (this “Assumption Agreement”) is entered into as of November 3, 2021, by and between bluebird bio, Inc., a Delaware corporation (“bluebird”), and 2seventy bio, Inc., a Delaware corporation (“2seventy”).

CERTAIN INFORMATION IN THIS DOCUMENT, MARKED BY [**], HAS BEEN EXCLUDED PURSUANT TO REGULATION S-K, ITEM 601(b)(10)(iv). SUCH EXCLUDED INFORMATION IS NOT MATERIAL AND IS THE TYPE THAT THE REGISTRANT TREATS AS PRIVATE OR CONFIDENTIAL. ASSUMPTION AGREEMENT

Assumption Agreement • October 8th, 2021 • 2seventy Bio, Inc. • Pharmaceutical preparations • New York

• Contract Type
  Assumption Agreement
• Filed
  October 8th, 2021
• Company
  2seventy Bio, Inc.
• Industry
  Pharmaceutical preparations
• Jurisdiction
  New York

This ASSUMPTION AGREEMENT (this “Assumption Agreement”) is entered into as of [l], 2021, by and between bluebird bio, Inc., a Delaware corporation (“bluebird”), and 2seventy bio, Inc., a Delaware corporation (“2seventy”).