Merrimack Pharmaceuticals, Inc. announced that the Board of Directors intends to declare a liquidating cash dividend in the amount of $15.10 per share, if stockholder approval of the Plan of Dissolution is obtained at the Special Meeting of Stockholders held on May 10, 2024. The dividend is expected to be paid on or about May 17, 2024, to stockholders of record on May 10, 2024.