OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

Mount Yale Investment Advisors, LLC's Holding History (CIK: 0001744349)

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

Q2 2025

Shares 1,824 Value ($000) $141 Avg Close $76.31 Range $69.94 - $79.78

Q2 2018

Shares 200 Value ($000) $10 Avg Close $36.40 Range $34.04 - $39.53

Q1 2018

Shares 200 Value ($000) $9 Avg Close $33.54 Range $29.25 - $35.88

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	1,824	$141	$76.31	$69.94 - $79.78
Q2 2018	200	$10	$36.40	$34.04 - $39.53
Q1 2018	200	$9	$33.54	$29.25 - $35.88