OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

Patten Group, Inc.'s Holding History (CIK: 0001633207)

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

Q3 2018

Shares 145 Value ($000) $7 Avg Close $39.34 Range $38.11 - $40.62

Q2 2018

Shares 145 Value ($000) $7 Avg Close $36.40 Range $34.04 - $39.53

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	145	$7	$39.34	$38.11 - $40.62
Q2 2018	145	$7	$36.40	$34.04 - $39.53