0000912057-96-021927 S-1/A 4 19961004 NYSE ALLEGIANCE CORP 0001017799 8093 364095179 DE 1231 S-1/A 33 333-12525 96639155 ONE BARTER PARKWAY DEERFIELD IL 60015 8479483781 ONE BARTER PARKWAY DEERFIELD IL 60015 S-1/A 1 000091205796021927-001-seq1-s-1-a.txt S-1/A EX-2.1 2 000091205796021927-002-seq2-ex-2-1.txt EXHIBIT 2.1 EX-4.1 3 000091205796021927-003-seq3-ex-4-1.txt EXHIBIT 4.1 EX-10.9 4 000091205796021927-004-seq4-ex-10-9.txt EXHIBIT 10.9