Beta0% was sold under disclosed trading plans, 100% with no plan disclosed. The largest seller, Keith Harvey (President & CEO, Director), sold $8.8M.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why
A share of stake is shown for 0 of the 7 officers and directors who sold. 20 are left out Disclosed company stock is not an insider's whole wealth.i
Left out: Keith Harvey, Jason Walsh, Brett Wilcox, Blain Tiffany, David Foster, John Donnan, Neal West, Donald Stebbins, michael arnold, Kevin Williams, Lauralee Martin, Richard Grimley, Glenda Minor, Kimberly Glas, James Hoffman, Jennifer Preston, Vijai Narayan, Hugh Barger III, Iulian Gheorghe and Thomas Robb (share of stake is being verified).
Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.
Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.
No officer or director trades were reported for the past 30 days. The most recent before that:
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Keith Harvey President & CEO, Director | 3,031 | $173.13 | n/a | n/a | Apr 29, 2026 | May 1, 2026 |
| Richard Grimley Director | 1,524 | $171.52 | n/a | n/a | Apr 29, 2026 | May 1, 2026 |
Yes. Keith Harvey sold 50K shares ($8.8M) in the past 12 months, none of it under a trading plan disclosed in the filings.
Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.
No. Officers and directors reported no purchases in the past 12 months.
| Who sold | Amount | % of holdings | Trading plan |
|---|---|---|---|
| Keith Harvey President & CEO, Director | $8.8M 50K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| John Donnan EVP, CAO and GC | $2.8M 21K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Brett Wilcox Director | $2.6M 15K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Neal West EVP & CFO | $1.5M 10K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Blain Tiffany EVP - Sales & Marketing | $813K 8.7K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Richard Grimley Director | $261K 1.5K shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
| Iulian Gheorghe SVP - Adv Eng & Innovation | $30K 175 shares | Not confirmedshare of stake is being verified. Why | No plan disclosed |
Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.
| Insider | Held Oct 16, 2025 | Sold | Held Oct 16, 2026 | Still held |
|---|---|---|---|---|
Keith Harvey!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Keith Harvey are complete. President & CEO, Director | n/a | −50K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Keith HarveyHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Keith Harvey are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −25Kwithheld by the company for taxes | ||||
Jason Walsh!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jason Walsh are complete. EVP - Manufacturing | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Jason WalshHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jason Walsh are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Brett Wilcox!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Brett Wilcox are complete. Director | n/a | −15K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Brett WilcoxHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Brett Wilcox are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Blain Tiffany!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Blain Tiffany are complete. EVP - Sales & Marketing | n/a | −8.7K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Blain TiffanyHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Blain Tiffany are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
David Foster!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for David Foster are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for David FosterHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for David Foster are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
John Donnan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for John Donnan are complete. EVP, CAO and GC | n/a | −21K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for John DonnanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for John Donnan are complete; balances and unit counts will be added when the check is finished. −1.5Kgifted (net of own trusts) −5.1Kwithheld by the company for taxes | ||||
Neal West!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Neal West are complete. EVP & CFO | n/a | −10K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Neal WestHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Neal West are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −5.5Kwithheld by the company for taxes | ||||
Donald Stebbins!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Donald Stebbins are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Donald StebbinsHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Donald Stebbins are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
michael arnold!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for michael arnold are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for michael arnoldHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for michael arnold are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Kevin Williams!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Kevin Williams are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Kevin WilliamsHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Kevin Williams are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Lauralee Martin!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Lauralee Martin are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Lauralee MartinHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Lauralee Martin are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Richard Grimley!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Richard Grimley are complete. Director | n/a | −1.5K | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Richard GrimleyHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Richard Grimley are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Glenda Minor!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Glenda Minor are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Glenda MinorHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Glenda Minor are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Kimberly Glas!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Kimberly Glas are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Kimberly GlasHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Kimberly Glas are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
James Hoffman!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for James Hoffman are complete. Director | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for James HoffmanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for James Hoffman are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Jennifer Preston!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Jennifer Preston are complete. EVP, Human Resources & Labor | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Jennifer PrestonHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Jennifer Preston are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Vijai Narayan!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Vijai Narayan are complete. VP, Corp Ctrl & CAO | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Vijai NarayanHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Vijai Narayan are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −742withheld by the company for taxes | ||||
Hugh Barger III!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Hugh Barger III are complete. EVP - Sales & Marketing | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Hugh Barger IIIHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Hugh Barger III are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Iulian Gheorghe!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Iulian Gheorghe are complete. SVP - Adv Eng & Innovation | n/a | −175 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Iulian GheorgheHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Iulian Gheorghe are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) −292withheld by the company for taxes | ||||
Thomas Robb!Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Thomas Robb are complete. EVP - Manufacturing | n/a | 0 | n/a | n/a |
Vesting, gifts, unvested awards and holding lines for Thomas RobbHoldings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Thomas Robb are complete; balances and unit counts will be added when the check is finished. 0gifted (net of own trusts) | ||||
Holdings and share of stake for Kaiser Aluminum Corp are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.
Officer and director open-market sales: $16.7M across 106,591 shares. Plan status and stated purpose are separate questions, and a sale can have both.
Sales with no 10b5-1 plan and no tax reference in the filing. $8.8M of it is Keith Harvey. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Keith Harvey, Apr 27, 2026
36,180 shares ($4.5M) were withheld by the company for taxes, which isn't a market sale.
Gifts the filings describe as charitable. Gifts are not sales and are not included in the sale totals.
| Seller | Shares sold | Proceeds | Under a disclosed plan | Share of total | Sales dates |
|---|---|---|---|---|---|
| Keith Harvey President & CEO, Director | 50K | $8.8M | 0% | 52% | Apr 27, 2026 to Apr 29, 2026 |
| John Donnan EVP, CAO and GC | 21K | $2.8M | 0% | 17% | Feb 23, 2026 to Apr 27, 2026 |
| Brett Wilcox Director | 15K | $2.6M | 0% | 16% | Apr 27, 2026 to Apr 27, 2026 |
| Neal West EVP & CFO | 10K | $1.5M | 0% | 9% | Feb 23, 2026 to Apr 28, 2026 |
| Blain Tiffany EVP - Sales & Marketing | 8.7K | $813K | 0% | 5% | Nov 7, 2025 to Nov 7, 2025 |
| Richard Grimley Director | 1.5K | $261K | 0% | 2% | Apr 29, 2026 to Apr 29, 2026 |
| Iulian Gheorghe SVP - Adv Eng & Innovation | 175 | $30K | 0% | 0.2% | Apr 27, 2026 to Apr 27, 2026 |
| Month | Sale proceeds | Disclosed plan | To cover taxes | No plan disclosed |
|---|---|---|---|---|
| Oct 2025 | $0 | $0 | $0 | $0 |
| Nov 2025 | $813K | $0 | $0 | $813K |
| Dec 2025 | $0 | $0 | $0 | $0 |
| Jan 2026 | $0 | $0 | $0 | $0 |
| Feb 2026 | $2.9M | $0 | $0 | $2.9M |
| Mar 2026 | $0 | $0 | $0 | $0 |
| Apr 2026 | $13.0M | $0 | $0 | $13.0M |
| May 2026 | $0 | $0 | $0 | $0 |
| Jun 2026 | $0 | $0 | $0 | $0 |
| Jul 2026 | $0 | $0 | $0 | $0 |
| Aug 2026 | $0 | $0 | $0 | $0 |
| Sep 2026 | $0 | $0 | $0 | $0 |
| Oct 2026 | $0 | $0 | $0 | $0 |
More than usual: $16.7M sold, after almost none in the past 5 years. 7 insiders sold; the average is 4 a year.
| 12 months ending | Shares sold | Insiders who sold | Proceeds |
|---|---|---|---|
| Oct 16, 2026 Latest 12 months | 107K | 7 | $16.7M |
| Oct 16, 2025 1 year earlier | 0 | 0 | $0 |
| Oct 16, 2024 2 years earlier | 3.3K | 1 | $327K |
| Oct 17, 2023 3 years earlier | 5.9K | 2 | $477K |
| Oct 17, 2022 4 years earlier | 10K | 6 | $959K |
| Oct 17, 2021 5 years earlier | 74K | 11 | $8.4M |
Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.
Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for Kaiser Aluminum Corp are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.
External context: we only cite outside events when a documented connection exists. None is shown for this period.
All 872 Forms 3, 4 and 5 on record for Kaiser Aluminum Corp (SEC CIK 811596), filed from Sep 18, 2003 to Oct 2, 2026; 33 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 16, 2026. Prices are the ones reported in each filing, often weighted averages.
Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.
Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".
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