FIRST ADDENDUM TO THE SHARE PURCHASE AND SALE AGREEMENT Between PSYENCE GROUP INC. (the "Seller") and PSYENCE BIOMEDICAL LTD. (the "Purchaser") and PSYENCE LABS LTD. (the "Company") (collectively, the "Parties")The Share Purchase and Sale Agreement • October 8th, 2024 • Psyence Biomedical Ltd. • Pharmaceutical preparations
