1 EXHIBIT 4.1 STOCK PURCHASE AGREEMENT Esperion Therapeutics, Inc. 3621 S. State Street 695 KMS Place Ann Arbor, MI 48108 Ladies & Gentlemen: The undersigned, _________________________________(the "Investor"), hereby confirms its agreement with you as...Stock Purchase Agreement • August 6th, 2001 • Esperion Therapeutics Inc/Mi • Pharmaceutical preparations • Delaware
