DOCUMENT SEC SYS INC

CUSIP: 25614T309 Class: COM NEW

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q3 2021
Shares 1,891,759 Value ($000) $2,440 Avg Close — Range —
Q2 2021
Shares 1,886,495 Value ($000) $3,377 Avg Close — Range —
Q1 2021
Shares 475,195 Value ($000) $1,716 Avg Close — Range —
Q4 2020
Shares 39,431 Value ($000) $246 Avg Close — Range —
Q3 2020
Shares 18,331 Value ($000) $84 Avg Close — Range —
Q2 2020
Shares 18,331 Value ($000) $150 Avg Close — Range —