EXHIBIT A JOINT FILING AGREEMENT The undersigned hereby agree that the statement on Schedule 13G with respect to the shares of common stock, par value $0.01 per share, of Merrimack Pharmaceuticals, Inc. dated as of February 22, 2024 is, and any...Joint Filing Agreement • February 22nd, 2024 • ADAR1 Partners, LP • Pharmaceutical preparations
The undersigned hereby agree that the statement on Schedule 13G with respect to the shares of common stock, par value $0.01 per share, of Merrimack Pharmaceuticals, Inc. dated as of February 22, 2024 is, and any amendments thereto signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
