OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

MAI Capital Management's Holding History (CIK: 0001040197)

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

Q3 2025

Shares 140 Value ($000) $11 Avg Close $79.81 Range $73.77 - $85.12

Q2 2025

Shares 165 Value ($000) $13 Avg Close $76.31 Range $69.94 - $79.78

Q1 2025

Shares 190 Value ($000) $15 Avg Close $76.90 Range $69.36 - $83.20

Q4 2024

Shares 190 Value ($000) $14 Avg Close $75.57 Range $70.66 - $85.02

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	140	$11	$79.81	$73.77 - $85.12
Q2 2025	165	$13	$76.31	$69.94 - $79.78
Q1 2025	190	$15	$76.90	$69.36 - $83.20
Q4 2024	190	$14	$75.57	$70.66 - $85.02