DOWDUPONT INC

CUSIP: 26078J100 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q1 2019
Shares 30,671 Value ($000) $1,635 Avg Close — Range —
Q4 2018
Shares 7,850 Value ($000) $420 Avg Close — Range —
Q2 2018
Shares 6,419 Value ($000) $423 Avg Close — Range —
Q1 2018
Shares 93,724 Value ($000) $5,971 Avg Close — Range —