Key facts
- This page summarizes Jennifer Kristi Preston's Form 3 filing for KAISER ALUMINUM CORP (KALU).
- 0 reported transactions and 0 derivative rows are listed below.
- Accepted by SEC: 02 Oct 2026, 17:22.
Jennifer Kristi Preston - 01 Oct 2026 Form 3 Insider Report for KAISER ALUMINUM CORP (KALU)
- Reporting relationship
- EVP, Human Resources & Labor
- Issuer ticker
- KALU
- Reported as of
- 01 Oct 2026
- Net transaction value
- $0
- Reporting owner signature
- /s/ Cherrie I. Tsai, with power of attorney for Jennifer Preston
Source evidence
Original filing metadata and source links for verification.
3 source fields
Reporting owner
1 detail
Key filing fact
Jennifer Kristi Preston filed Form 3 for KAISER ALUMINUM CORP (KALU) on 02 Oct 2026.
Change
- No earlier filing in this sequence is available for direct comparison.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Official SEC source
View source filing
Ownership activity is grounded in SEC Form 3 disclosures.
Reporting Owners (1)
CIK 0002156883
Primary reporting owner
Preston Jennifer Kristi
- Relationship
- EVP, Human Resources & Labor
- Address
- C/O KAISER, 1550 W. MCEWEN DR., #500, FRANKLIN
- Signature
- /s/ Cherrie I. Tsai, with power of attorney for Jennifer Preston
- Signature date
- 02 Oct 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
KALU
holding
Common Stock, par value $0.01 per share
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 5,604
- Date
- 01 Oct 2026
- Ownership
- Direct
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
Includes 3,346 shares acquired pursuant to grants of restricted stock units.