Longeveron Inc

Trading Arrangements

Rock Soffer, a member of the Company’s Board of Directors, adopted a “Rule 10b5-1 trading arrangement” during the Company’s fiscal quarter ended March 31, 2024. The trading arrangement, adopted January 11, 2024, and effective January 12, 2024, is intended to satisfy the affirmative defense of Rule 10b5-1(c). The trading arrangement will remain in place per its terms until the earlier of (a) April 17, 2025; (b) completion of the sale of 275,000 shares of Longeveron Class A common stock; (d) notice or awareness of the closing of a tender or exchange offer or a merger, acquisition, reorganization, recapitalization, or comparable transaction for Longeveron in which its capital stock is exchanged or converted; (e) the death, incapacity, bankruptcy, or insolvency of Mr. Soffer; or (e) such other termination in accordance with its terms.

Other than Mr. Soffer, none of the Company’s other directors or “officers,” as defined in Rule 16a-1(f) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), adopted, modified, orterminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408 of Regulation S-K, during the Company’s fiscal quarter ended March 31, 2024.