OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

Clean Yield Group's Holding History (CIK: 0001525865)

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

Q1 2020

Shares 100 Value ($000) $4 Avg Close $42.27 Range $26.34 - $48.43

Q4 2019

Shares 100 Value ($000) $5 Avg Close $43.72 Range $40.72 - $48.47

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	100	$4	$42.27	$26.34 - $48.43
Q4 2019	100	$5	$43.72	$40.72 - $48.47