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Buy Day today: Neutral (46) Mixed market breadth · no major macro event
KALU

Kaiser Aluminum Corporation

Basic Materials · Aluminum

116.30$ -3.0% vs. previous close Closing price · As of: Oct 30, 2026

Ownership

Ownership Structure

Who owns Kaiser Aluminum Corporation (KALU)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 97.8% of the shares are freely tradable; institutional investors hold 100.8%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 100.8%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 1.4%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 97.8%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 7.1%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 16Mio.

Largest Shareholders

Institutions

Institutions KALU
Name Stake (%) Shares Change (%) Date
BlackRock Inc 17.56 2,870,588 +1.0 06/30/2026
Vanguard Portfolio Management, LLC 8.64 1,413,170 +8.0 06/30/2026
State Street Corp 8.06 1,317,519 -1.2 06/30/2026
Dimensional Fund Advisors, Inc. 4.75 775,944 -5.2 06/30/2026
Vanguard Capital Management, LLC 4.33 707,161 +5.6 06/30/2026
Delaware Management Holdings Inc 4.16 679,387 -4.9 06/30/2026
Geode Capital Management, LLC 2.89 471,735 +16.8 06/30/2026

Funds

Funds KALU
Name Stake (%) Shares Change (%) Date
iShares Core S&P Small-Cap ETF 5.90 964,387 +0.0 09/30/2026
Stt Strt®SPDR®S&P®Mtls &MngETF 3.73 609,803 +1.0 09/30/2026
Vanguard MStar Total Stk Mkt Idx Invest 3.03 496,045 +0.3 09/30/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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