THE ADT CORPORATION

CUSIP: 00101J106 Class: COM

GATEWAY INVESTMENT ADVISERS LLC's Holding History (CIK: 0001114618)

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

Q1 2016
Shares 286,873 Value ($000) $11,836 Avg Close — Range —
Q4 2015
Shares 241,200 Value ($000) $7,955 Avg Close — Range —
Q3 2015
Shares 186,702 Value ($000) $5,582 Avg Close — Range —
Q2 2015
Shares 188,071 Value ($000) $6,314 Avg Close — Range —
Q1 2015
Shares 188,696 Value ($000) $7,835 Avg Close — Range —
Q4 2014
Shares 189,281 Value ($000) $6,858 Avg Close — Range —
Q3 2014
Shares 190,147 Value ($000) $6,743 Avg Close — Range —
Q2 2014
Shares 230,096 Value ($000) $8,040 Avg Close — Range —
Q1 2014
Shares 228,732 Value ($000) $6,851 Avg Close — Range —
Q4 2013
Shares 259,588 Value ($000) $10,506 Avg Close — Range —
Q3 2013
Shares 261,833 Value ($000) $10,646 Avg Close — Range —
Q2 2013
Shares 260,854 Value ($000) $10,395 Avg Close — Range —