OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

Perigon Wealth Management, LLC's Holding History (CIK: 0001575239)

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

Q1 2018

Shares 3,352 Value ($000) $145 Avg Close $33.54 Range $29.25 - $35.88

Q4 2017

Shares 1,967 Value ($000) $87 Avg Close $36.46 Range $34.36 - $38.83

Q3 2017

Shares 1,962 Value ($000) $85 Avg Close $32.68 Range $30.48 - $35.27

Q2 2017

Shares 1,895 Value ($000) $75 Avg Close $30.80 Range $28.67 - $32.99

Q1 2017

Shares 1,746 Value ($000) $66 Avg Close $29.42 Range $27.80 - $31.55

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	3,352	$145	$33.54	$29.25 - $35.88
Q4 2017	1,967	$87	$36.46	$34.36 - $38.83
Q3 2017	1,962	$85	$32.68	$30.48 - $35.27
Q2 2017	1,895	$75	$30.80	$28.67 - $32.99
Q1 2017	1,746	$66	$29.42	$27.80 - $31.55