KAISER ALUMINUM CORP

Rolling Drawing & Extruding of Nonferrous Metals

KALU Mining & Metals People in Mining & Metals SEC CIK 0000811596 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$2.57B
16,349,092 shares Covers every share class this company has on file.
Insiders on file
19
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$79.74M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
3.10%
insider-held value divided by market capitalisation

What KAISER ALUMINUM CORP reports

Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$3.37B
FY2025 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
$113.00M
FY2025 profit for the period, from this company’s own annual XBRL filings to the SEC
Employees
3,800
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at KAISER ALUMINUM CORP

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against KAISER ALUMINUM CORP.
Insider Reported role Shares Value Last action
Officers 7
Jason Walsh EVP 42,770 $7.02M F Shares withheld for taxes Aug 12, 2025 position reported
Neal E West CFO 42,481 $6.97M S Open-market sale Apr 28, 2026 position reported
John Malcolm Donnan General Counsel 32,443 $5.33M G Bona fide gift Apr 28, 2026 position reported
Blain Tiffany EVP 26,275 $4.31M S Open-market sale Nov 7, 2025 position reported
Ray Parkinson SVP 23,928 $3.93M F Shares withheld for taxes Mar 5, 2025 position reported
Thomas H Robb EVP 17,898 $2.94M A Grant or award Mar 5, 2026 position reported
Vijai Narayan Chief Accounting Officer 7,517 $1.23M F Shares withheld for taxes Mar 5, 2026 position reported
Officers who also sit on the board 1
Keith Harvey CEO 144,340 $23.70M S Open-market sale Apr 29, 2026 position reported
Directors 10
Jack A. Hockema Board Member 34,242 $5.62M F Shares withheld for taxes Jun 11, 2024 position reported
Brett Wilcox Board Member 26,792 $4.40M A Grant or award Jun 4, 2026 position reported
David A Foster Board Member 23,546 $3.87M A Grant or award Jun 4, 2026 position reported
Donald J. Stebbins Board Member 14,040 $2.31M A Grant or award Jun 4, 2026 position reported
Michael C. Arnold Michael C. Arnold Board Member 10,659 $1.75M A Grant or award Jun 4, 2026 position reported
Teresa Mosley Sebastian Board Member 9,925 $1.63M A Grant or award Jun 11, 2024 position reported
Kevin W Williams Board Member 8,562 $1.41M A Grant or award Jun 10, 2025 position reported
Lauralee Martin Board Member 8,345 $1.37M A Grant or award Jun 10, 2025 position reported
Glenda J. Minor Board Member 3,395 $557.4K A Grant or award Jun 4, 2026 position reported
James Donald Hoffman Board Member 2,385 $391.6K A Grant or award Jun 4, 2026 position reported
Role not stated in the disclosures we hold 1
Richard P Grimley — 6,102 $1.00M A Grant or award Jun 4, 2026 position reported

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

KAISER ALUMINUM CORP (KALU) filed a Form 8-K under Item 5.02 (directors and officers) on Aug 17, 2026

Director or officer change filing

The company filed a current report that includes Item 5.02, the item used to report departures, elections or appointments of directors and certain officers, and related pay arrangements. We record only that this filing exists: we have not extracted who left, who joined or whose role changed. Open the filing to read it.

Form 8-K filed Aug 17, 2026, items 5.02, 7.01, 9.01. SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 103 rows we hold, 2 are open-market purchases (P) and 10 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for KAISER ALUMINUM CORP, newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Jun 10, 2025 Brett Wilcox A Grant or award 1,592 $73.49 $117.0K SEC filing ↗
Jun 10, 2025 Brett Wilcox A Grant or award 1,905 $0.00 $0 SEC filing ↗
Jun 10, 2025 Michael C. Arnold A Grant or award 1,905 $0.00 $0 SEC filing ↗
Jun 10, 2025 Michael C. Arnold A Grant or award 918 $73.49 $67.5K SEC filing ↗
Jun 10, 2025 Donald J. Stebbins A Grant or award 1,905 $0.00 $0 SEC filing ↗
Apr 30, 2025 Neal E West A Grant or award 39 $63.51 $2.5K SEC filing ↗
Apr 30, 2025 Neal E West A Grant or award 461 $63.42 $29.2K SEC filing ↗
Mar 5, 2025 Vijai Narayan A Grant or award 1,342 $0.00 $0 SEC filing ↗
Mar 5, 2025 Jason Walsh F Shares withheld for taxes 302 $69.00 $20.8K SEC filing ↗
Mar 5, 2025 Jason Walsh A Grant or award 1,041 $0.00 $0 SEC filing ↗
Mar 5, 2025 Jason Walsh A Grant or award 4,472 $0.00 $0 SEC filing ↗
Mar 5, 2025 Jason Walsh F Shares withheld for taxes 772 $69.00 $53.3K SEC filing ↗
Mar 5, 2025 Ray Parkinson F Shares withheld for taxes 445 $69.00 $30.7K SEC filing ↗
Mar 5, 2025 Ray Parkinson A Grant or award 3,086 $0.00 $0 SEC filing ↗
Mar 5, 2025 Ray Parkinson F Shares withheld for taxes 645 $69.00 $44.5K SEC filing ↗
Mar 5, 2025 Ray Parkinson A Grant or award 1,081 $0.00 $0 SEC filing ↗
Mar 5, 2025 Keith Harvey A Grant or award 27,299 $0.00 $0 SEC filing ↗
Mar 5, 2025 Keith Harvey A Grant or award 10,323 $0.00 $0 SEC filing ↗
Mar 5, 2025 Keith Harvey F Shares withheld for taxes 2,514 $69.00 $173.5K SEC filing ↗
Mar 5, 2025 Keith Harvey F Shares withheld for taxes 2,427 $69.00 $167.5K SEC filing ↗
Mar 5, 2025 Neal E West A Grant or award 2,299 $0.00 $0 SEC filing ↗
Mar 5, 2025 Neal E West F Shares withheld for taxes 611 $69.00 $42.2K SEC filing ↗
Mar 5, 2025 Neal E West F Shares withheld for taxes 892 $69.00 $61.5K SEC filing ↗
Mar 5, 2025 Neal E West A Grant or award 7,150 $0.00 $0 SEC filing ↗
Mar 5, 2025 Blain Tiffany F Shares withheld for taxes 616 $69.00 $42.5K SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Subsidiaries — 4 legal entities

Subsidiaries of KAISER ALUMINUM CORP

4 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries KAISER ALUMINUM CORP names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
Kaiser Aluminum Fabricated Products, LLC Delaware
Kaiser Aluminum Investments Company Delaware
Kaiser Aluminum Warrick, LLC Delaware
Kaiser Aluminum Washington, LLC Delaware
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from KAISER ALUMINUM CORP’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from KAISER ALUMINUM CORP’s own SEC filings multiplied by the closing price we hold for the same stock.

Logo: Kaiser Aluminum Corporation / Public domain , via Wikimedia Commons ↗ — used here to identify the company. Trademarks remain the property of their owner.