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SEC Form 4 research

KAISER ALUMINUM CORP insider transactions

Inspect KAISER ALUMINUM CORP's public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0000811596
Reporting owners
53
Officers and directors
25
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What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

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Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Show the table · 28 rows, 3 columns

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Parkinson Ray000155187013
Weaver Brant00018010652
Harvey Keith000155186949
Murdy William F000120506398
West Neal E000133031936
Wilcox Brett000128922610
Tiffany Blain000132371949
MARTIN LAURALEE00011644958
BARNESON JOHN00012272844
Bartholomew Carolyn00014014335
Bunin Pete000155185016
DONNAN JOHN MALCOLM000131154431
ELLSWORTH MELINDA C000119457114
Foster David A00013728861
Frankel Carl Bennett00013540866
Gerard Leo Wilfred00017885691
Gheorghe Iulian00021040711
Grimley Richard P.00019724911
HOCKEMA JACK A000122728591
Huey Jennifer00017698651
Krouse Mark00015862895
McAuliffe James E00014213486
Miller Del L00017043055
OSBORNE ALFRED E JR000121332426
Quinn Jack000135408811
RINKENBERGER DANIEL J000122729211
Rowsell Lynton John00013946351
Van Leeuwen Thomas Melton000135408314

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.