As of the latest Form 4 filed Jun 5, 2026.
What Kaiser Aluminum Corporation insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 42 most recent filings for KALU.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-05 | 2026-06-04 | arnold michael c Director | AAward | +786.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | Glas Kimberly Thompson Director | AAward | +786.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | STEBBINS DONALD J Director | AAward | +631.00 | $178.10 | $112K | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | STEBBINS DONALD J, Director | AAward | +786.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | Wilcox Brett Director | AAward | +328.00 | $178.10 | $58.4K | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | Wilcox Brett, Director | AAward | +786.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | HOFFMAN JAMES DONALD Director | AAward | +589.00 | $178.10 | $105K | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | HOFFMAN JAMES DONALD, Director | AAward | +786.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | Grimley Richard P. Director | AAward | +786.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | MINOR GLENDA J Director | AAward | +335.00 | $178.10 | $59.7K | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | MINOR GLENDA J, Director | AAward | +786.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-05 | 2026-06-04 | Foster David A Director | AAward | +786.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-29 | Grimley Richard P. Director | SSale | −1.52K | $171.52 | $261K | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-29 | Harvey Keith President & CEO | SSale | −3.03K | $173.13 | $525K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-28 | DONNAN JOHN MALCOLM EVP, CAO and GC | GGift | −1.50K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-27 | Wilcox Brett Director | SSale | −15.0K | $174.44 | $2.62M | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-27 | DONNAN JOHN MALCOLM EVP, CAO and GC | SSale | −2.74K | $178.20 | $489K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-27 | Gheorghe Iulian SVP - Adv Eng & Innovation | SSale | −175.00 | $174.22 | $30.5K | No | Form 4 ↗ |
| 2026-04-29 | 2026-04-27 | Harvey Keith President & CEO | SSale | −47.0K | $175.09 | $8.23M | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Harvey Keith President & CEO | FTax | −6.86K | $125.84 | $863K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Harvey Keith, President & CEO | FTax | −17.7K | $125.84 | $2.23M | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Harvey Keith, President & CEO | AAward | +47.9K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Harvey Keith, President & CEO | AAward | +17.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Robb Thomas H. EVP - Manufacturing | AAward | +2.95K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Gheorghe Iulian SVP - Adv Eng & Innovation | FTax | −216.00 | $125.84 | $27.2K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Gheorghe Iulian, SVP - Adv Eng & Innovation | AAward | +852.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Narayan Vijai VP, Corp Ctrl & CAO | FTax | −97.00 | $125.84 | $12.2K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Narayan Vijai, VP, Corp Ctrl & CAO | FTax | −482.00 | $125.84 | $60.7K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Narayan Vijai, VP, Corp Ctrl & CAO | AAward | +733.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | Barger Hugh J. III EVP - Sales & Marketing | AAward | +1.69K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | West Neal E EVP & CFO | FTax | −1.76K | $125.84 | $222K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | West Neal E, EVP & CFO | FTax | −3.69K | $125.84 | $465K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | West Neal E, EVP & CFO | AAward | +12.3K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | West Neal E, EVP & CFO | AAward | +3.90K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | DONNAN JOHN MALCOLM EVP, CAO and GC | FTax | −1.67K | $125.84 | $210K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | DONNAN JOHN MALCOLM, EVP, CAO and GC | FTax | −3.44K | $125.84 | $433K | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | DONNAN JOHN MALCOLM, EVP, CAO and GC | AAward | +11.6K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-09 | 2026-03-05 | DONNAN JOHN MALCOLM, EVP, CAO and GC | AAward | +3.70K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-25 | 2026-02-23 | Robb Thomas H. EVP - Manufacturing | AAward | +440.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-02-25 | 2026-02-23 | DONNAN JOHN MALCOLM EVP, CAO and GC | SSale | −18.5K | $125.08 | $2.31M | No | Form 4 ↗ |
| 2026-02-25 | 2026-02-23 | West Neal E EVP & CFO | SSale | −5.00K | $121.72 | $609K | No | Form 4 ↗ |
| 2026-02-20 | 2026-02-19 | Gheorghe Iulian SVP - Adv Eng & Innovation | FTax | −76.00 | $127.05 | $9.66K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also KALU’s full analysis or the market-wide insider trading feed. The tabs above jump to KALU’s other SEC data.
Source: SEC Form 4 filings for KALU, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.