IRON MTN INC

CUSIP: 462846106 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2014
Shares 200,102 Value ($000) $7,736 Avg Close — Range —
Q3 2014
Shares 181,864 Value ($000) $5,938 Avg Close — Range —
Q2 2014
Shares 353,814 Value ($000) $12,543 Avg Close — Range —
Q1 2014
Shares 377,574 Value ($000) $10,410 Avg Close — Range —
Q4 2013
Shares 377,354 Value ($000) $11,453 Avg Close — Range —
Q3 2013
Shares 381,064 Value ($000) $10,296 Avg Close — Range —
Q2 2013
Shares 272,974 Value ($000) $7,264 Avg Close — Range —