DOCUMENT SEC SYS INC

CUSIP: 25614T101 Class: CMN

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

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

Q2 2016
Shares 22,908 Value ($000) $5 Avg Close — Range —
Q1 2016
Shares 22,908 Value ($000) $4 Avg Close — Range —
Q4 2015
Shares 22,908 Value ($000) $4 Avg Close — Range —
Q3 2015
Shares 22,908 Value ($000) $4 Avg Close — Range —
Q2 2015
Shares 22,908 Value ($000) $6 Avg Close — Range —
Q1 2015
Shares 28,420 Value ($000) $10 Avg Close — Range —
Q4 2014
Shares 28,420 Value ($000) $13 Avg Close — Range —
Q3 2014
Shares 28,420 Value ($000) $24 Avg Close — Range —
Q2 2014
Shares 28,420 Value ($000) $39 Avg Close — Range —
Q1 2014
Shares 28,420 Value ($000) $36 Avg Close — Range —
Q4 2013
Shares 28,420 Value ($000) $59 Avg Close — Range —
Q3 2013
Shares 28,420 Value ($000) $32 Avg Close — Range —
Q2 2013
Shares 28,420 Value ($000) $65 Avg Close — Range —