EXHIBIT NO. 4.1 AMENDMENT NO. 4 TO RIGHTS AGREEMENT This Amendment No. 4 dated May 14, 1999 hereby amends the Rights Agreement originally dated as of October 13, 1995, as amended on June 29, 1998, August 18, 1998 and September 3, 1998 (the...Rights Agreement • May 20th, 1999 • Arch Communications Group Inc /De/ • Radiotelephone communications
