InsiderTrades

Form 4 for OTTR Otter Tail Corp

Accepted 2026-02-09 00:00:00 ET · period of report 2026-02-06 · accession 0001605621-26-000002 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2026-02-09 2026-02-06 OTTR ROGELSTAD TIMOTHY J SVP, Electric Platform M - OptEx — +1,625 57.7K +3% —
D 2026-02-09 2026-02-06 OTTR ROGELSTAD TIMOTHY J SVP, Electric Platform F - Tax $87.83 -763 56.9K -1% -$67.0K
DM 2026-02-09 2026-02-06 OTTR ROGELSTAD TIMOTHY J SVP, Electric Platform M - OptEx $0.00 -1,625 450 -78% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-02-06 M A 1,625 — 57,655 D — — (F1) Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.
2 Common Common Stock 2026-02-06 F D 763 $87.83 56,892 D — — (F2) These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e). (F3) Total direct holdings include shares acquired individually through dividend reinvestment, Employee Stock Purchase Plan, and acquired pursuant to Restricted Stock Awards and Performance Share Awards.
3 Derivative Restricted Stock Units 2026-02-06 M D 400 $0.00 0 D — · 2023-02-06 to — 0 Common Stock (F1) Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock. (F4) The restricted stock units vest in four equal annual installments beginning the date shown above.
4 Derivative Restricted Stock Units 2026-02-06 M D 425 $0.00 1,275 D — · 2026-02-06 to — 1,275 Common Stock (F1) Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock. (F4) The restricted stock units vest in four equal annual installments beginning the date shown above.
5 Derivative Restricted Stock Units 2026-02-06 M D 350 $0.00 700 D — · 2025-02-06 to — 700 Common Stock (F1) Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock. (F4) The restricted stock units vest in four equal annual installments beginning the date shown above.
6 Derivative Restricted Stock Units 2026-02-06 M D 450 $0.00 450 D — · 2024-02-06 to — 450 Common Stock (F1) Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock. (F4) The restricted stock units vest in four equal annual installments beginning the date shown above.