OTTER TAIL CORP

Ticker: OTTR CUSIP: 689648103 Class: Common Stock

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q4 2025
Shares 344,149 Value ($000) $27,811 Avg Close $80.23 Range $73.20 - $85.91
Q3 2025
Shares 165,000 Value ($000) $13,525 Avg Close $79.81 Range $73.77 - $85.12
Q2 2025
Shares 185,000 Value ($000) $14,262 Avg Close $76.31 Range $69.94 - $79.78
Q1 2025
Shares 220,000 Value ($000) $17,681 Avg Close $76.90 Range $69.36 - $83.20
Q3 2024
Shares 70,000 Value ($000) $5,471 Avg Close $83.04 Range $72.06 - $96.51
Q1 2022
Shares 155,000 Value ($000) $9,688 Avg Close $56.77 Range $53.45 - $64.83
Q4 2021
Shares 165,000 Value ($000) $11,784 Avg Close $58.09 Range $49.63 - $64.66
Q3 2021
Shares 320,232 Value ($000) $17,923 Avg Close $47.36 Range $42.04 - $52.53
Q2 2021
Shares 330,232 Value ($000) $16,119 Avg Close $42.43 Range $40.25 - $44.44
Q1 2021
Shares 205,232 Value ($000) $9,476 Avg Close $37.61 Range $34.41 - $41.57