Kaiser Aluminum (KALU) EVP sells and gifts company stock

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Kaiser Aluminum Corp EVP, CAO and GC John Malcolm Donnan reported an open-market sale and a charitable gift of company stock. On April 27, 2026, he sold 2,743 shares of common stock at a weighted average price of $178.20 per share.

On April 28, 2026, he made a bona fide gift of 1,500 shares to a charitable trust for no consideration. After these transactions, he holds 28,200 shares of Kaiser Aluminum common stock directly, including 17,422 shares acquired through restricted stock unit grants.

Insider Trade Summary

Net Seller: 2,743 shares ($488,807)

Net Sell 2 txns

Insider DONNAN JOHN MALCOLM

Role EVP, CAO and GC

Sold 2,743 shs ($489K)

Type	Security	Shares	Price	Value
Gift	Common Stock, par value $0.01 per share	1,500	$0.00	--
Sale	Common Stock, par value $0.01 per share	2,743	$178.2015	$489K

Holdings After Transaction: Common Stock, par value $0.01 per share — 28,200 shares (Direct, null)

Footnotes (1)

Represents the sale of 2,743 shares in multiple transactions, ranging from $175.96 to $179.41 per share, resulting in a weighted average sale price of $178.20 per share. The reporting person undertakes to provide upon request by the SEC staff, the Registrant, or a security holder of the Registrant, full information regarding the number of shares sold at each separate price within the range. Includes 17,422 shares acquired pursuant to grants of restricted stock units. Bona fide gift by the reporting person to a charitable trust for no consideration.

Key Figures

Shares sold: 2,743 shares Weighted average sale price: $178.20 per share Shares gifted: 1,500 shares +2 more

5 metrics

Shares sold 2,743 shares Open-market sale of common stock on April 27, 2026

Weighted average sale price $178.20 per share Multiple sale transactions between $175.96 and $179.41

Shares gifted 1,500 shares Bona fide gift to a charitable trust on April 28, 2026

Shares held after transactions 28,200 shares Directly held Kaiser Aluminum common stock following sale and gift

RSU-acquired shares included 17,422 shares Portion of direct holdings acquired via restricted stock unit grants

Key Terms

bona fide gift, restricted stock units, weighted average sale price

3 terms

bona fide gift financial

"Bona fide gift by the reporting person to a charitable trust for no consideration."

restricted stock units financial

"Includes 17,422 shares acquired pursuant to grants of restricted stock units."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

weighted average sale price financial

"resulting in a weighted average sale price of $178.20 per share."

Form 4 Insider Transactions: What Each Field Means →

04/29/2026 - 04:30 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

DONNAN JOHN MALCOLM

(Last)

(First)

(Middle)

1550 WEST MCEWEN DRIVE

SUITE 500

(Street)

FRANKLIN

TENNESSEE

37067

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
KAISER ALUMINUM CORP [ KALU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP, CAO and GC

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/27/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock, par value $0.01 per share	04/27/2026		S		2,743	D	$178.2015⁽¹⁾	29,700⁽²⁾	D
Common Stock, par value $0.01 per share	04/28/2026		G		1,500	D	$0⁽³⁾	28,200⁽²⁾	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents the sale of 2,743 shares in multiple transactions, ranging from $175.96 to $179.41 per share, resulting in a weighted average sale price of $178.20 per share. The reporting person undertakes to provide upon request by the SEC staff, the Registrant, or a security holder of the Registrant, full information regarding the number of shares sold at each separate price within the range.

2. Includes 17,422 shares acquired pursuant to grants of restricted stock units.

3. Bona fide gift by the reporting person to a charitable trust for no consideration.

	/s/ Cherrie I. Tsai, with power of attorney for John M. Donnan	04/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Kaiser Aluminum (KALU) EVP John Malcolm Donnan report?

He reported two transactions: an open-market sale of 2,743 Kaiser Aluminum common shares and a separate bona fide gift of 1,500 shares to a charitable trust. Both involved directly held stock and were executed on consecutive days in late April 2026.

How many Kaiser Aluminum (KALU) shares did the EVP sell and at what price?

He sold 2,743 shares of Kaiser Aluminum common stock at a weighted average price of $178.20 per share, with individual trades executed between $175.96 and $179.41. The filing notes he can provide full trade-by-trade details upon request.

What does the bona fide gift in the Kaiser Aluminum (KALU) Form 4 involve?

The bona fide gift is a transfer of 1,500 Kaiser Aluminum shares by the executive to a charitable trust for no consideration. This means he did not receive payment; the shares were donated as part of a charitable transaction rather than sold.

How many Kaiser Aluminum (KALU) shares does the EVP hold after these transactions?

Following the reported sale and gift, he holds 28,200 Kaiser Aluminum common shares directly. This total includes 17,422 shares that were originally acquired through grants of restricted stock units, reflecting both compensation-based awards and remaining personally held equity.

What portion of the EVP’s Kaiser Aluminum (KALU) holdings came from restricted stock units?

Out of his 28,200 directly held Kaiser Aluminum shares after the transactions, 17,422 shares were acquired through grants of restricted stock units. This indicates a significant component of his ownership arises from equity-based compensation rather than open-market purchases.

Were the Kaiser Aluminum (KALU) insider sales executed in a single trade or multiple trades?

The 2,743-share sale was executed in multiple transactions within a price range of $175.96 to $179.41 per share. The Form 4 reports a weighted average sale price of $178.20 and notes detailed price and volume information is available upon request.