DOWDUPONT INC

CUSIP: 26078j100 Class: COM

First Dallas Securities Inc.'s Holding History (CIK: 0001378559)

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

Q4 2018
Shares 6,540 Value ($000) $350 Avg Close — Range —
Q3 2018
Shares 11,840 Value ($000) $761 Avg Close — Range —
Q2 2018
Shares 14,140 Value ($000) $932 Avg Close — Range —
Q1 2018
Shares 16,365 Value ($000) $1,043 Avg Close — Range —
Q3 2017
Shares 17,015 Value ($000) $1,178 Avg Close — Range —