OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2025

Shares 35,029 Value ($000) $2,831 Avg Close $80.23 Range $73.20 - $85.91

Q3 2022

Shares 5,293 Value ($000) $326 Avg Close $66.11 Range $56.18 - $75.76

Q2 2022

Shares 5,293 Value ($000) $355 Avg Close $57.93 Range $52.29 - $62.99

Q1 2022

Shares 5,293 Value ($000) $331 Avg Close $56.77 Range $53.45 - $64.83

Q4 2021

Shares 5,293 Value ($000) $378 Avg Close $58.09 Range $49.63 - $64.66

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	35,029	$2,831	$80.23	$73.20 - $85.91
Q3 2022	5,293	$326	$66.11	$56.18 - $75.76
Q2 2022	5,293	$355	$57.93	$52.29 - $62.99
Q1 2022	5,293	$331	$56.77	$53.45 - $64.83
Q4 2021	5,293	$378	$58.09	$49.63 - $64.66