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person · Reporting owner

Glas Kimberly Thompson

Disclosed activity across 1 company

Tapewire entity
41138
SEC CIK
0002051548

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
KAISER ALUMINUM CORPKALU · Entity 4302DirectorJune 04, 2026June 05, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

KAISER ALUMINUM CORP

Report date June 04, 2026 · Filed June 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock, par value $0.01 per shareSEC Table I · non-derivativeDirect3,466 Reported balance After 2026-06-04 transaction · row 1
1 source row

Row 1 · 2026-06-04 · Grant · Acquired 786 · Balance 3,466

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.

Filing footnotes · ownership attribution and instrument terms

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.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
June 04, 2026 Filed Jun 5, 2026 22:11 UTC KAISER ALUMINUM CORP KALU · Entity 4302 GrantCommon Stock, par value $0.01 per share 786 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-260101 · ownership.xml · nonDerivative · entry 1

Glas Kimberly Thompson · CIK 0002051548 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,466

F1 · shares: 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 · price: 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.

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June 10, 2025 Filed Jun 12, 2025 20:30 UTC KAISER ALUMINUM CORP KALU · Entity 4302 GrantCommon Stock, par value $0.01 per share 1,905 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-085461 · ownership.xml · nonDerivative · entry 1

Glas Kimberly Thompson · CIK 0002051548 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,680

F1 · shares: 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 10, 2026.

F1 · price: 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 10, 2026.

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January 10, 2025 Filed Jan 10, 2025 23:22 UTC KAISER ALUMINUM CORP KALU · Entity 4302 GrantCommon Stock, par value $0.01 per share 775 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-004367 · ownership.xml · nonDerivative · entry 1

Glas Kimberly Thompson · CIK 0002051548 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 775

F1 · shares: 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 January 10, 2026.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.