EXHIBIT 10.4 GENTA INCORPORATED NON-EMPLOYEE DIRECTORS' 1998 STOCK OPTION PLAN STOCK OPTION AGREEMENT STOCK OPTION AGREEMENT (the "Agreement"), dated as of May 28th, 1998, between GENTA INCORPORATED, a Delaware corporation (the "Company"), and the...Stock Option Agreement • August 14th, 1998 • Genta Incorporated /De/ • Biological products, (no disgnostic substances) • New York
