Kaiser Aluminum Corp SEC filings KALU
Kaiser Aluminum Corp has 1,000 filings in SEC EDGAR's recent list, going back to Oct 26, 2012. Its latest annual report, Form 10-K, was filed on Feb 19, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 22, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 21, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 3, 2026 | Nov 1, 2026 |
| 3 | Initial insider ownership | Nov 3, 2026 | Nov 1, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2026 | — |
| 10-Q | Quarterly report | Oct 22, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 21, 2026 | Oct 21, 2026 |
| 8-K |
Current report
Other events
|
Oct 13, 2026 | Oct 13, 2026 |
| 3 | Initial insider ownership | Oct 2, 2026 | Oct 1, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 17, 2026 | Aug 12, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2026 | — |
| 10-Q | Quarterly report | Jul 23, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jul 22, 2026 | Jul 22, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 14, 2026 | — |
| 8-K |
Current report
Other events
|
Jul 13, 2026 | Jul 13, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| 4 | Insider transaction | Jun 5, 2026 | Jun 4, 2026 |
| S-8 | Employee stock plan registration | Jun 4, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 4, 2026 | Jun 4, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 27, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 12, 2026 | — |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 1, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | Apr 29, 2026 | Apr 27, 2026 |
| 4 | Insider transaction | Apr 29, 2026 | Apr 27, 2026 |
| 4 | Insider transaction | Apr 29, 2026 | Apr 27, 2026 |
| 4 | Insider transaction | Apr 29, 2026 | Apr 28, 2026 |
| 4 | Insider transaction | Apr 29, 2026 | Apr 27, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 144 | Notice of proposed sale | Apr 29, 2026 | — |
| DEF 14A | Proxy statement | Apr 28, 2026 | Jun 4, 2026 |
| 144 | Notice of proposed sale | Apr 28, 2026 | — |
| 144 | Notice of proposed sale | Apr 27, 2026 | — |
| 144 | Notice of proposed sale | Apr 27, 2026 | — |
| 144 | Notice of proposed sale | Apr 27, 2026 | — |
| 144 | Notice of proposed sale | Apr 27, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2026 | — |
| 10-Q | Quarterly report | Apr 23, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 22, 2026 | Apr 22, 2026 |
| 8-K |
Current report
Other events
|
Apr 13, 2026 | Apr 13, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 144 | Notice of proposed sale | Mar 23, 2026 | — |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 144 | Notice of proposed sale | Feb 23, 2026 | — |
| 144 | Notice of proposed sale | Feb 23, 2026 | — |
| 144 | Notice of proposed sale | Feb 23, 2026 | — |
| 4 | Insider transaction | Feb 20, 2026 | Feb 19, 2026 |
| 10-K | Annual report | Feb 19, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 18, 2026 | Feb 18, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| 3 | Initial insider ownership | Jan 14, 2026 | Dec 16, 2025 |
| 8-K |
Current report
Other events
|
Jan 13, 2026 | Jan 13, 2026 |
| 3 | Initial insider ownership | Jan 12, 2026 | Dec 16, 2025 |
| 3 | Initial insider ownership | Jan 12, 2026 | Jan 1, 2026 |
| 8-K |
Current report
Officer or director change
|
Jan 7, 2026 | Jan 1, 2026 |
| 8-K |
Current report
Other events
|
Dec 19, 2025 | Dec 18, 2025 |
| 144 | Notice of proposed sale | Dec 8, 2025 | — |
| 4 | Insider transaction | Nov 25, 2025 | Nov 21, 2025 |
| 144/A | Filing | Nov 21, 2025 | — |
| 144 | Notice of proposed sale | Nov 21, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Nov 17, 2025 | Nov 14, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 12, 2025 | — |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 4 | Insider transaction | Nov 10, 2025 | Nov 7, 2025 |
| 144 | Notice of proposed sale | Nov 7, 2025 | — |
| 8-K |
Current report
Material agreement, New debt
|
Nov 5, 2025 | Nov 5, 2025 |
| 8-K |
Current report
Other events
|
Oct 27, 2025 | Oct 27, 2025 |
| 8-K |
Current report
Other events
|
Oct 27, 2025 | Oct 27, 2025 |
| 10-Q | Quarterly report | Oct 23, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 22, 2025 | Oct 22, 2025 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 16, 2025 | Oct 14, 2025 |
| 8-K |
Current report
Other events
|
Oct 14, 2025 | Oct 14, 2025 |
| 4 | Insider transaction | Sep 19, 2025 | Sep 18, 2025 |
| 3 | Initial insider ownership | Sep 19, 2025 | Sep 18, 2025 |
| 8-K |
Current report
Officer or director change
|
Sep 19, 2025 | Sep 18, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Aug 12, 2025 |
| 4 | Insider transaction | Aug 14, 2025 | Aug 12, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 12, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Jul 30, 2025 | Jul 30, 2025 |
| 10-Q | Quarterly report | Jul 24, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 23, 2025 | Jul 23, 2025 |
| 8-K |
Current report
Other events
|
Jul 15, 2025 | Jul 15, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 3 | Initial insider ownership | Jun 12, 2025 | Jun 10, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 10, 2025 | Jun 10, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 23, 2025 | — |
| 4 | Insider transaction | May 2, 2025 | Apr 30, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 29, 2025 | — |
| DEF 14A | Proxy statement | Apr 28, 2025 | Jun 10, 2025 |
| 10-Q | Quarterly report | Apr 24, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 23, 2025 | Apr 23, 2025 |
| 8-K |
Current report
Other events
|
Apr 15, 2025 | Apr 15, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 15, 2025 | — |
| 8-K |
Current report
Results of operations
|
Apr 2, 2025 | Apr 2, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 4 | Insider transaction | Mar 7, 2025 | Mar 5, 2025 |
| 10-K | Annual report | Feb 20, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 19, 2025 | Feb 19, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| 4/A | Filing | Feb 7, 2025 | Jun 7, 2023 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 27, 2025 | — |
| 8-K |
Current report
Other events
|
Jan 14, 2025 | Jan 14, 2025 |
| 4 | Insider transaction | Jan 10, 2025 | Jan 10, 2025 |
| 3 | Initial insider ownership | Jan 10, 2025 | Jan 1, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 6, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 11, 2024 | Dec 5, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Nov 7, 2024 |
| SC 13G | Ownership over 5% (passive) | Nov 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 7, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 7, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| 10-Q | Quarterly report | Oct 24, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Oct 23, 2024 | Oct 23, 2024 |
| 8-K |
Current report
Other events
|
Oct 15, 2024 | Oct 15, 2024 |
| 4 | Insider transaction | Jul 29, 2024 | Jul 29, 2024 |
| 10-Q | Quarterly report | Jul 26, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Jul 24, 2024 | Jul 24, 2024 |
| 8-K |
Current report
Other events
|
Jul 15, 2024 | Jul 15, 2024 |
| 4/A | Filing | Jul 12, 2024 | Jun 11, 2024 |
| 4/A | Filing | Jul 12, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 13, 2024 | Jun 11, 2024 |
| S-8 | Employee stock plan registration | Jun 11, 2024 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 11, 2024 | Jun 11, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 24, 2024 | — |
| DEFA14A | Additional proxy material | May 21, 2024 | — |
| 4 | Insider transaction | May 17, 2024 | May 15, 2024 |
| 144 | Notice of proposed sale | May 15, 2024 | — |
| DEF 14A | Proxy statement | Apr 26, 2024 | Jun 11, 2024 |
| 10-Q | Quarterly report | Apr 25, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
Apr 24, 2024 | Apr 24, 2024 |
| 8-K |
Current report
Other events
|
Apr 15, 2024 | Apr 15, 2024 |
| 4 | Insider transaction | Apr 5, 2024 | Apr 3, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 7, 2024 | Mar 5, 2024 |
| 4 | Insider transaction | Mar 4, 2024 | Feb 29, 2024 |
| 10-K | Annual report | Feb 23, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 21, 2024 | Feb 21, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 16, 2024 | Feb 12, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 25, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2024 | — |
| 8-K |
Current report
Other events
|
Jan 12, 2024 | Jan 11, 2024 |
| 10-Q | Quarterly report | Oct 26, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 25, 2023 | Oct 25, 2023 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Oct 13, 2023 | Jun 7, 2023 |
| 8-K |
Current report
Other events
|
Oct 12, 2023 | Oct 12, 2023 |
| 4 | Insider transaction | Aug 4, 2023 | Aug 3, 2023 |
| 144 | Notice of proposed sale | Aug 3, 2023 | — |
| 10-Q | Quarterly report | Jul 28, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Jul 25, 2023 | Jul 25, 2023 |
| 8-K |
Current report
Other events
|
Jul 13, 2023 | Jul 13, 2023 |
| 4/A | Form 4/a submission | Jun 30, 2023 | Jun 7, 2023 |
| 144 | Notice of proposed sale | Jun 12, 2023 | — |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Rolling Drawing & Extruding of Nonferrous Metals (SIC 3350)
- Listed as
- KALU (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Franklin, TN
- SEC filer status
- Large accelerated filer
- SEC CIK
- 811596
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.