DOWDUPONT INC

CUSIP: 26078j100 Class: COM

GARDNER RUSSO & QUINN LLC's Holding History (CIK: 0000860643)

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

Q4 2017
Shares 47,305 Value ($000) $3,369 Avg Close — Range —
Q3 2017
Shares 48,139 Value ($000) $3,333 Avg Close — Range —