IRON MTN INC

CUSIP: 462846106 Class: COM

MASON STREET ADVISORS, LLC's Holding History (CIK: 0001167711)

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

Q4 2014
Shares 48,018 Value ($000) $1,856 Avg Close — Range —
Q3 2014
Shares 45,403 Value ($000) $1,482 Avg Close — Range —
Q2 2014
Shares 45,339 Value ($000) $1,607 Avg Close — Range —
Q1 2014
Shares 45,771 Value ($000) $1,262 Avg Close — Range —
Q4 2013
Shares 46,371 Value ($000) $1,407 Avg Close — Range —
Q3 2013
Shares 50,465 Value ($000) $1,364 Avg Close — Range —
Q2 2013
Shares 65,785 Value ($000) $1,751 Avg Close — Range —