Vicki A. Hollub - 28 Feb 2026 Form 4 Insider Report for OCCIDENTAL PETROLEUM CORP /DE/ (OXY)

Role: President and CEO, Director
Signature: /s/ Brittany A. Smith, Attorney-in-Fact for Vicki A. Hollub
Issuer symbol: OXY
Transactions as of: 28 Feb 2026
Net transactions value: -$1,758,859
Form type: 4
Filing time: 03 Mar 2026, 20:07:52 UTC
Previous filing: 20 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Hollub Vicki A.	President and CEO, Director	OCCIDENTAL PETROLEUM CORPORATION, 5 GREENWAY PLAZA, STE. 110, HOUSTON	/s/ Brittany A. Smith, Attorney-in-Fact for Vicki A. Hollub	03 Mar 2026	0001588752

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OXY	Common Stock	Tax liability	$1,758,859	-33,136	-3.2%	$53.08	1,014,608	28 Feb 2026	Direct	F1
transaction	OXY	Common Stock	Award	$0	+94,198	+9.3%	$0.000000	1,108,806	01 Mar 2026	Direct	F2
holding	OXY	Common Stock						26,702	28 Feb 2026	By OPC Savings Plan	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of common stock withheld to satisfy tax withholding obligations upon the vesting of previously reported restricted stock units (RSUs).
F2	Award of RSUs pursuant to the Issuer's Amended and Restated 2015 Long-Term Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs will vest in three equal annual installments beginning on February 28, 2027.
F3	Based on a plan statement dated February 27, 2026.