OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

NATIONAL BANK OF CANADA /FI/'s Holding History (CIK: 0000926171)

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

Q2 2025

Shares 41 Value ($000) $3 Avg Close $76.31 Range $69.94 - $79.78

Q4 2023

Shares 100 Value ($000) $9 Avg Close $72.94 Range $64.95 - $84.21

Q3 2023

Shares 100 Value ($000) $7 Avg Close $77.16 Range $70.28 - $86.93

Q3 2022

Shares 229 Value ($000) $14 Avg Close $66.11 Range $56.18 - $75.76

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	41	$3	$76.31	$69.94 - $79.78
Q4 2023	100	$9	$72.94	$64.95 - $84.21
Q3 2023	100	$7	$77.16	$70.28 - $86.93
Q3 2022	229	$14	$66.11	$56.18 - $75.76