DOCUMENT SEC SYS INC

CUSIP: 25614T200 Class: COM NEW

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

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

Q1 2020
Shares 48,628 Value ($000) $10 Avg Close — Range —
Q4 2019
Shares 14,106 Value ($000) $4 Avg Close — Range —
Q3 2019
Shares 14,106 Value ($000) $5 Avg Close — Range —
Q2 2019
Shares 14,106 Value ($000) $7 Avg Close — Range —
Q1 2019
Shares 14,106 Value ($000) $18 Avg Close — Range —
Q1 2018
Shares 15,957 Value ($000) $21 Avg Close — Range —
Q4 2017
Shares 15,957 Value ($000) $29 Avg Close — Range —
Q3 2017
Shares 15,957 Value ($000) $13 Avg Close — Range —
Q2 2017
Shares 15,957 Value ($000) $12 Avg Close — Range —
Q1 2017
Shares 15,957 Value ($000) $19 Avg Close — Range —