0001029869-98-000498 10-Q/A 2 19970331 19980415 NASD PEGASYSTEMS INC 0001013857 7374 042787865 1231 10-Q/A 34 001-11859 98594753 101 MAIN ST CAMBRIDGE MA 02142-1590 6173749600 101 MAIN ST CAMBRIDGE MA 02142-1590 10-Q/A 1 000102986998000498-001-seq1-10-q-a.txt QUARTERLY REPORT EX-27.1 2 000102986998000498-002-seq2-ex-27-1.txt FINANCIAL DATA SCHEDULE