DOWDUPONT INC

CUSIP: 26078J100 Class: COM

MOUNT VERNON ASSOCIATES INC /MD/'s Holding History (CIK: 0000799003)

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

Q1 2019
Shares 17,720 Value ($000) $945 Avg Close — Range —
Q4 2018
Shares 17,748 Value ($000) $949 Avg Close — Range —
Q3 2018
Shares 17,848 Value ($000) $1,148 Avg Close — Range —
Q2 2018
Shares 18,360 Value ($000) $1,210 Avg Close — Range —
Q1 2018
Shares 19,513 Value ($000) $1,243 Avg Close — Range —
Q4 2017
Shares 19,577 Value ($000) $1,394 Avg Close — Range —
Q3 2017
Shares 20,246 Value ($000) $1,402 Avg Close — Range —