Exhibit 10.1 LEUKOSITE, INC. REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT (this "Agreement") is made as of July 20, 1999 by and among (i) LeukoSite, Inc., a Delaware corporation (the "Company"), (ii) Perseus Capital LLC., a...Registration Rights Agreement • August 17th, 1999 • Leukosite Inc • Pharmaceutical preparations • Massachusetts
Exhibit 10.3 AGREEMENT AND PLAN OF MERGER AND REORGANIZATION This Agreement and Plan of Merger and Reorganization, dated as of June 22, 1999 (this "Agreement"), is by and among (i) LeukoSite, Inc., a Delaware corporation ("LeukoSite"), (ii) ProScript...Merger Agreement • August 17th, 1999 • Leukosite Inc • Pharmaceutical preparations • Massachusetts
