InsiderTrades

Form 4 for OTTR Otter Tail Corp

Accepted 2026-02-09 00:00:00 ET · period of report 2026-02-06 · accession 0001559334-26-000002 · 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 KNUTSON PAUL L VP, Human Resources F - Tax $87.83 -279 23.0K -1% -$24.5K
D 2026-02-09 2026-02-06 OTTR KNUTSON PAUL L VP, Human Resources M - OptEx — +700 23.3K +3% —
DM 2026-02-09 2026-02-06 OTTR KNUTSON PAUL L VP, Human Resources M - OptEx $0.00 -700 200 -78% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-02-06 F D 279 $87.83 22,975 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.
2 Common Common Stock 2026-02-06 M A 700 — 23,254 D — — (F1) Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.
3 Derivative Restricted Stock Units 2026-02-06 M D 175 $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 175 $0.00 525 D — · 2026-02-06 to — 525 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 150 $0.00 300 D — · 2025-02-06 to — 300 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 200 $0.00 200 D — · 2024-02-06 to — 200 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.