0000912057-01-506635 8-K 5 20010403 5 7 20010403 IRON MOUNTAIN INC/PA 0001020569 4220 232588479 PA 1231 8-K 34 001-13045 1592661 745 ATLANTIC AVENUE BOSTON MA 02111- 6175354766 745 ATLANTIC AVENUE BOSTON MA 02111- PIERCE LEAHY CORP 19960807 8-K 1 a2044106z8-k.txt 8-K EX-4.1 2 a2044106zex-4_1.txt EXHIBIT 4.1 EX-4.2 3 a2044106zex-4_2.txt EXHIBIT 4.2 EX-10 4 a2044106zex-10.txt EXHIBIT 10 EX-12 5 a2044106zex-12.txt EXHIBIT 12