Form 4 for KALU KAISER ALUMINUM CORP
Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-05 · accession 0001193125-26-098631 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 2026-03-09 | 2026-03-05 | KALU | DONNAN JOHN MALCOLM | EVP, CAO, GC | F - Tax | $125.84 | -5,110 | 32.4K | -14% | -$643.0K |
| M | 2026-03-09 | 2026-03-05 | KALU | DONNAN JOHN MALCOLM | EVP, CAO, GC | A - Grant | $0.00 | +15.3K | 37.6K | +69% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock, par value $0.01 per share | 2026-03-05 | F | D | 3,441 | $125.84 | 34,112 | D | — | — | (F2) Includes 21,661 shares acquired pursuant to grants of restricted stock units. |
| 2 | Common | Common Stock, par value $0.01 per share | 2026-03-05 | F | D | 1,669 | $125.84 | 32,443 | D | — | — | (F6) Includes 17,422 shares acquired pursuant to grants of restricted stock units. |
| 3 | Common | Common Stock, par value $0.01 per share | 2026-03-05 | A | A | 3,699 | $0.00 | 25,904 | D | — | — | (F1) Grant to the reporting person effective as of March 5, 2026 of restricted stock units under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan, as amended and restated. All restrictions will lapse on March 5, 2029 or earlier upon the occurrence of certain specified circumstances. (F2) Includes 21,661 shares acquired pursuant to grants of restricted stock units. |
| 4 | Common | Common Stock, par value $0.01 per share | 2026-03-05 | A | A | 11,649 | $0.00 | 37,553 | D | — | — | (F3) Shares earned upon the vesting on March 5, 2026 of certain performance shares granted to the reporting person in 2023 under the Kaiser Aluminum Corporation 2021 Equity and Incentive Compensation Plan. On March 5, 2026, the Registrant's compensation committee certified the performance shares payout multiplier based on the level of achievement by the Registrant of certain pre-established performance goals for 2023 through 2025. (F2) Includes 21,661 shares acquired pursuant to grants of restricted stock units. |