InsiderTrades

Form 4 for KALU KAISER ALUMINUM CORP

Accepted 2026-06-05 17:15:54 ET · period of report 2026-06-04 · accession 0001193125-26-259940 · 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
2026-06-05 17:15 2026-06-04 KALU Foster David A Dir A - Grant $0.00 +786 24.3K +3% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock, par value $0.01 per share 2026-06-04 A A 786 $0.00 24,332 D — — (F1) Grant to the reporting person of restricted stock under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on June 4, 2027. (F1) Grant to the reporting person of restricted stock under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on June 4, 2027.