OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class: Equity / COMMON STOCK
Symbol: OXY on NYSE
Shares outstanding: 1,066,829,888
Price per share: $45.42
All holders as of 31 Dec 2025: Q4 2025
Total 13F shares: 761,842,176
Total reported value: $31,333,840,200
% of total 13F portfolios: 0.02%
Share change: +2,003,624
Value change: +$53,542,948
Number of holders: 1,085
Price from insider filings: $45.42

Reported Shares, Excluding Options vs Price

Reported Value, Excluding Options

Total Investors

Significant Owners of OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY) based on Schedule 13D/G filings

Filer	Ownership	Holdings Value	Nb Shares	Reporting Name	Report Period
BERKSHIRE HATHAWAY INC	33%	$16,155,399,721	348,853,373	Warren E. Buffett	30 Jun 2025
DODGE & COX	8.8%	$3,399,702,243	84,255,322	Dodge & Cox	31 Dec 2024
VANGUARD GROUP INC	8.5%	$3,237,320,245	80,230,985	The Vanguard Group	31 Mar 2025

As of 31 Dec 2025, 1,085 institutional investors reported holding 761,842,176 shares of OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY). This represents 71% of the company’s total 1,066,829,888 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY) together control 61% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution	Ownership %	Shares Held	Share Change %	Portfolio %	Holdings Value
Berkshire Hathaway Inc	25%	264,941,431	0%	4%	$10,894,391,643
VANGUARD GROUP INC	8.4%	89,900,677	+0.78%	0.05%	$3,696,715,838
Dodge & Cox	7.4%	79,473,071	-0.51%	1.8%	$3,267,932,680
BlackRock, Inc.	4.7%	50,613,910	+2.4%	0.04%	$2,081,244,000
STATE STREET CORP	3.7%	39,539,743	+2.1%	0.05%	$1,635,262,505
GEODE CAPITAL MANAGEMENT, LLC	1.8%	18,846,231	+0.9%	0.05%	$771,949,089
H&H International Investment, LLC	1.2%	13,172,600	-2.8%	3.1%	$541,657,312
MORGAN STANLEY	1.1%	11,398,589	-14%	0.03%	$468,710,070
DIMENSIONAL FUND ADVISORS LP	0.99%	10,602,660	+22%	0.09%	$436,008,448
Invesco Ltd.	0.63%	6,730,847	+19%	0.04%	$276,772,425
NORTHERN TRUST CORP	0.61%	6,490,716	-6.8%	0.03%	$266,898,243
BANK OF AMERICA CORP /DE/	0.58%	6,221,127	+9.4%	0.02%	$255,812,762
FAIRFAX FINANCIAL HOLDINGS LTD/ CAN	0.57%	6,050,418	0%	12%	$248,732,684
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.51%	5,390,549	+3.6%	0.03%	$221,659,375
Pacer Advisors, Inc.	0.48%	5,148,149	-26%	0.55%	$211,691,887
GOLDMAN SACHS GROUP INC	0.42%	4,451,135	+27%	0.03%	$183,030,674
UBS Group AG	0.41%	4,336,250	-4.8%	0.04%	$178,306,600
Bank of New York Mellon Corp	0.37%	3,984,160	-6.1%	0.03%	$163,828,655
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0.37%	3,959,638	+54%	0.03%	$162,820,314
Legal & General Group Plc	0.36%	3,884,572	+2.2%	0.04%	$159,733,601
Smead Capital Management, Inc.	0.33%	3,545,182	-6.4%	3%	$145,777,865
SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.32%	3,411,663	+134%	0.19%	$140,287,582
Adams Asset Advisors, LLC	0.31%	3,282,753	-7.1%	18%	$134,986,803
COOKE & BIELER LP	0.3%	3,147,606	+6.4%	1.3%	$129,429,559
FMR LLC	0.28%	2,947,834	-11%	0.01%	$121,214,913

Institutional Holders of OCCIDENTAL PETROLEUM CORP /DE/ - COMMON STOCK (OXY) across Reporting Periods

Period	Reported Shares, Excl. Options	Value, Excl. Options	Value Change	Puts Notional Value	Calls Notional Value	Price (Median)	Investors
2025 Q4	761,842,176	$31,333,840,200	+$53,542,948	$1,163,165,472	$1,462,046,894	$41.12	1,085
2025 Q3	760,710,122	$35,938,597,596	+$489,485,877	$1,367,492,340	$1,357,494,371	$47.25	1,139
2025 Q2	750,189,545	$31,524,668,784	+$327,140,987	$1,414,069,240	$1,204,162,658	$42.01	1,117
2025 Q1	741,996,905	$36,610,076,456	+$1,144,373,980	$1,441,254,740	$1,275,779,341	$49.36	1,183
2024 Q4	718,044,109	$35,492,508,346	-$203,593,346	$1,657,919,612	$1,801,354,229	$49.41	1,197
2024 Q3	720,045,602	$37,129,217,397	+$203,696,139	$1,908,052,614	$1,183,022,698	$51.54	1,196
2024 Q2	713,174,261	$44,955,119,018	+$150,502,100	$1,890,704,604	$1,463,108,962	$63.03	1,209
2024 Q1	711,552,346	$46,245,911,136	+$1,023,549,286	$2,382,483,408	$1,920,684,321	$64.99	1,230
2023 Q4	694,853,646	$41,491,946,886	+$186,757,949	$1,988,171,746	$1,493,998,054	$59.71	1,211
2023 Q3	691,060,885	$44,840,794,657	+$308,585,377	$1,913,682,822	$1,775,450,702	$64.88	1,151
2023 Q2	686,174,422	$40,362,846,433	-$992,493,117	$1,710,430,232	$1,379,723,662	$58.80	1,142
2023 Q1	701,532,407	$43,810,502,981	-$714,433,607	$1,646,540,725	$1,585,220,142	$62.43	1,151
2022 Q4	714,065,587	$44,988,450,281	+$29,403,827	$2,202,396,576	$1,710,744,967	$62.99	1,145
2022 Q3	714,233,584	$43,936,005,372	-$1,346,669,997	$1,542,588,900	$1,855,932,238	$61.45	1,082
2022 Q2	734,180,411	$43,228,373,376	-$834,916,348	$1,245,931,704	$1,799,966,160	$58.88	1,031
2022 Q1	753,125,105	$42,740,895,629	+$5,085,770,280	$1,661,491,746	$2,640,453,150	$56.74	957
2021 Q4	692,030,549	$20,074,807,389	+$605,959,035	$707,873,866	$885,544,625	$28.99	772
2021 Q3	669,861,368	$19,816,557,681	+$292,066,118	$667,063,784	$1,077,646,006	$29.58	732
2021 Q2	659,711,609	$20,628,599,251	+$152,953,403	$642,039,272	$928,715,466	$31.27	725
2021 Q1	657,023,583	$17,476,724,433	+$451,257,609	$421,833,778	$639,972,122	$26.62	701
2020 Q4	641,754,911	$11,118,745,568	+$167,485,670	$416,313,009	$655,108,105	$17.31	658
2020 Q3	622,371,376	$6,230,112,462	-$325,634,586	$233,046,130	$175,311,717	$10.01	640
2020 Q2	640,009,810	$11,703,241,817	-$727,437,149	$486,328,156	$443,188,980	$18.30	696
2020 Q1	692,152,267	$8,055,534,102	-$1,004,179,034	$228,732,000	$231,851,000	$11.58	759
2019 Q4	701,753,607	$28,957,140,510	-$432,301,486	$891,376,000	$751,792,000	$41.21	1,031
2019 Q3	709,947,479	$31,598,533,303	+$2,851,174,633	$1,027,641,000	$709,047,000	$44.47	1,064
2019 Q2	645,182,293	$32,456,939,380	+$1,514,768,659	$689,463,000	$662,351,000	$50.28	1,039
2019 Q1	617,520,763	$40,900,338,274	-$930,371,226	$155,854,000	$249,900,000	$66.20	1,117
2018 Q4	630,051,534	$38,691,608,121	+$366,713,558	$188,155,000	$329,329,000	$61.38	1,096
2018 Q3	622,088,783	$51,102,942,365	+$95,351,512	$320,143,000	$744,284,000	$82.17	1,143
2018 Q2	621,068,812	$51,966,601,402	-$323,760,325	$318,343,000	$967,241,000	$83.68	1,172
2018 Q1	627,359,024	$40,772,868,812	-$429,424,552	$440,247,376	$329,884,800	$64.96	1,089
2017 Q4	633,366,849	$46,633,338,713	+$1,006,087,550	$583,095,320	$305,447,912	$73.66	1,072
2017 Q3	620,957,938	$39,898,273,886	-$32,241,455	$527,584,000	$303,731,000	$64.21	979
2017 Q2	623,035,435	$37,302,943,522	-$224,806,922	$424,083,000	$387,827,924	$59.87	968
2017 Q1	627,456,741	$39,766,056,522	+$3,527,999,096	$301,568,000	$291,583,000	$63.36	1,021
2016 Q4	628,530,056	$44,757,704,908	-$129,742,870	$397,176,000	$640,350,000	$71.23	1,072
2016 Q3	627,921,544	$45,767,230,663	+$286,485,400	$317,765,000	$804,231,000	$72.92	1,027
2016 Q2	624,445,228	$47,181,550,131	+$686,477,228	$285,718,000	$676,555,000	$75.56	1,039
2016 Q1	615,180,842	$42,092,805,265	-$179,848,054	$175,930,000	$362,057,000	$68.43	1,031
2015 Q4	618,110,993	$41,787,245,214	-$554,635,044	$352,595,000	$690,351,000	$67.61	1,026
2015 Q3	625,801,311	$41,397,565,360	+$943,008,918	$387,838,000	$559,479,000	$66.15	991
2015 Q2	617,647,392	$48,023,514,484	+$55,120,278	$451,324,000	$1,001,851,000	$77.77	1,030
2015 Q1	616,889,402	$45,062,606,329	-$405,845,335	$342,907,000	$786,310,000	$73.00	1,052
2014 Q4	621,662,327	$50,108,696,092	+$120,044,477	$662,098,000	$2,269,989,000	$80.61	1,074
2014 Q3	616,947,223	$59,318,011,633	-$460,722,155	$872,013,000	$3,312,538,000	$96.15	1,116
2014 Q2	621,404,630	$63,761,091,089	-$669,013,570	$793,051,000	$2,087,513,000	$102.63	1,147
2014 Q1	627,254,950	$59,772,192,505	-$280,444,943	$596,575,000	$958,892,000	$95.29	1,093