IRON MTN INC

CUSIP: 462846106 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

Note: Option positions (PUT/CALL) are excluded.

Q4 2014
Shares 2,199,775 Value ($000) $85,043 Avg Close — Range —
Q3 2014
Shares 2,722,507 Value ($000) $88,890 Avg Close — Range —
Q2 2014
Shares 2,395,048 Value ($000) $84,905 Avg Close — Range —
Q1 2014
Shares 2,331,795 Value ($000) $64,287 Avg Close — Range —
Q4 2013
Shares 2,442,639 Value ($000) $74,134 Avg Close — Range —
Q3 2013
Shares 2,235,017 Value ($000) $60,390 Avg Close — Range —
Q2 2013
Shares 2,162,896 Value ($000) $57,554 Avg Close — Range —