DOCUMENT SEC SYS INC

CUSIP: 25614T200 Class: COM NEW

TWO SIGMA SECURITIES, LLC's Holding History (CIK: 0001450144)

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

Q1 2020
Shares 22,037 Value ($000) $4 Avg Close — Range —
Q2 2019
Shares 17,335 Value ($000) $9 Avg Close — Range —
Q1 2019
Shares 38,181 Value ($000) $50 Avg Close — Range —
Q3 2018
Shares 12,250 Value ($000) $13 Avg Close — Range —