0000857005-06-000021 8-K 2 20061009 2.02 9.01 20061010 20061010 PARAMETRIC TECHNOLOGY CORP 0000857005 7372 042866152 MA 0930 8-K 34 000-18059 061135748 140 KENDRICK STREET NEEDHAM MA 02494 7813705000 140 KENDRICK STREET NEEDHAM MA 02494 8-K 1 ptc8k10092006.txt PTC 8-K OCTOBER 9, 2006 EX-99 2 ex9910092006.txt PRESS RELEASE