0000950170-24-046918 Sample Contracts

ARCA BIOPHARMA, INC. SECOND AMENDMENT TO RETENTION BONUS LETTER
Retention Bonus Agreement • April 23rd, 2024 • ARCA Biopharma, Inc. • In vitro & in vivo diagnostic substances • Colorado

This second amendment (this “Amendment”) is entered into effective as of April 22, 2024 by and between Thomas A. Keuer (“Executive”) and ARCA biopharma, Inc. (the “Company,” and together with Executive, the “Parties”).