DOWDUPONT INC

CUSIP: 26078J100 Class: COM

SECURITY NATIONAL BANK OF SO DAK's Holding History (CIK: 0001105909)

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

Q4 2017
Shares 3,114 Value ($000) $222 Avg Close — Range —
Q3 2017
Shares 3,194 Value ($000) $221 Avg Close — Range —