SEC Form 4 · Updated Daily

OXY

— OCCIDENTAL PETROLEUM CORPORATION Ownership

Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.

Financials Ownership

Current Reporting Owners

Owner	Role	Shares Owned	As Of	Last Activity
Hollub Vicki A.	Director · Officer	1,037,826	2026-06-01	F
Jackson Richard A.	Officer	444,098	2026-06-23	P
Dillon Kenneth	Officer	372,201	2026-03-01	A
Simmons Jeff F	Officer	332,726	2026-03-01	A
Peterson Robert L	Officer	313,199	2026-03-01	A
Mathew Sunil	Officer	228,739	2026-03-01	A
KLESSE WILLIAM R	Director	222,149	2026-05-04	F
Kerrigan Sylvia J	Officer	179,516	2026-03-01	A
Champion Christopher O	Officer	144,004	2026-03-01	A
GUTIERREZ CARLOS M	Director	82,651	2026-05-04	A
POLADIAN AVEDICK BARUYR	Director	79,575	2026-05-04	A
MOORE JACK B	Director	76,431	2026-05-04	F
Shearer Bob	Director	66,463	2026-05-04	A
GOULD ANDREW	Director	46,334	2026-05-04	F
POLLACK BRAD	Officer	42,660	2026-08-01	A
ONeill Claire	Director	16,265	2026-05-04	A
BAILEY VICKY A	Director	15,490	2026-05-04	F
Robinson Kenneth B.	Director	15,359	2026-05-04	F

Recent Filings

Date	Owner	Activity	Shares	Price	Owned After
2026-08-01	POLLACK BRAD	Grant / award	26,284	$0.00	42,660
2026-06-23	Jackson Richard A.	Open-market buy	4,770	$52.38	444,098
2026-06-01	Hollub Vicki A.	Tax withholding	73,477	$58.92	1,037,826
2026-06-01	Hollub Vicki A.	Tax withholding	701	$58.92	1,111,303
2026-06-01	Hollub Vicki A.	Grant / award	3,183	$0.00	1,112,004
2026-06-01	Jackson Richard A.	Grant / award	101,833	$0.00	439,328
2026-05-04	ONeill Claire	Grant / award	3,734	$0.00	16,265
2026-05-04	Shearer Bob	Grant / award	3,734	$0.00	66,463
2026-05-04	POLADIAN AVEDICK BARUYR	Grant / award	4,149	$0.00	79,575
2026-05-04	KLESSE WILLIAM R	Tax withholding	913	$60.27	222,149
2026-05-04	KLESSE WILLIAM R	Grant / award	4,149	$0.00	223,062
2026-05-04	GUTIERREZ CARLOS M	Grant / award	3,734	$0.00	82,651
2026-05-04	GOULD ANDREW	Tax withholding	1,494	$60.27	46,334
2026-05-04	GOULD ANDREW	Grant / award	4,978	$0.00	47,828
2026-05-04	Robinson Kenneth B.	Tax withholding	913	$60.27	15,359
2026-05-04	Robinson Kenneth B.	Grant / award	4,149	$0.00	16,272
2026-05-04	BAILEY VICKY A	Tax withholding	1,223	$60.27	15,490
2026-05-04	BAILEY VICKY A	Grant / award	3,734	$0.00	16,713
2026-05-04	MOORE JACK B	Tax withholding	1,479	$60.27	76,431
2026-05-04	MOORE JACK B	Grant / award	6,720	$0.00	77,910
2026-04-14	POLADIAN AVEDICK BARUYR	Gift	5,000	$0.00	75,426
2026-04-14	POLADIAN AVEDICK BARUYR	Gift	5,000	$0.00	80,426
2026-04-14	POLADIAN AVEDICK BARUYR	Gift	5,000	$0.00	5,000
2026-04-14	POLADIAN AVEDICK BARUYR	Gift	5,000	$0.00	85,426
2026-03-01	Champion Christopher O	Grant / award	13,565	$0.00	144,004
2026-03-01	Dillon Kenneth	Grant / award	27,883	$0.00	372,201
2026-03-01	Hollub Vicki A.	Grant / award	94,198	$0.00	1,108,806
2026-03-01	Jackson Richard A.	Grant / award	37,679	$0.00	337,495
2026-03-01	Kerrigan Sylvia J	Grant / award	48,983	$0.00	179,516
2026-03-01	Simmons Jeff F	Grant / award	24,115	$0.00	332,726
2026-03-01	Mathew Sunil	Grant / award	26,376	$0.00	228,739
2026-03-01	Peterson Robert L	Grant / award	24,115	$0.00	313,199
2026-02-28	Champion Christopher O	Tax withholding	4,970	$53.08	130,439
2026-02-28	Dillon Kenneth	Tax withholding	10,131	$53.08	344,318
2026-02-28	Hollub Vicki A.	Tax withholding	33,136	$53.08	1,014,608
2026-02-28	Jackson Richard A.	Tax withholding	10,131	$53.08	299,816
2026-02-28	Kerrigan Sylvia J	Tax withholding	18,304	$53.08	130,533
2026-02-28	Simmons Jeff F	Tax withholding	9,436	$53.08	308,611
2026-02-28	Mathew Sunil	Tax withholding	9,732	$53.08	202,363
2026-02-28	Peterson Robert L	Tax withholding	8,988	$53.08	289,084

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.