0000950109-97-002091 10-K 4 19961231 19970311 NONE PIERCE LEAHY CORP 0001020569 4220 NY 10-K 34 333-09963 97554175 631 PARK AVENUE KING OF PRUSSIA PA 19406 6109928200 10-K 1 000095010997002091-001-seq1-10-k.txt FORM 10-K EX-10.7 2 000095010997002091-002-seq2-ex-10-7.txt STOCK PURCHASE AGREEMENT EX-21 3 000095010997002091-003-seq3-ex-21.txt SUBSIDIARIES OF THE REGISTRANT EX-27 4 000095010997002091-004-seq4-ex-27.txt FINANCIAL DATA SCHEDULE