Occidental Petroleum Corp - Common Stock

CUSIP: 674599105

Q1 2026 13F Holders as of 31 Mar 2026

Type / Class
Equity / Common Stock
Shares outstanding
940,574,267
Total 13F shares
6,576,866
Share change
0
Total reported value
$424,529,043
Price per share
$65.00
Number of holders
56

Quarterly Holders Quick Answers

What is CUSIP 674599105?
CUSIP 674599105 identifies 674599105 - Occidental Petroleum Corp - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Top shareholders of 674599105 - Occidental Petroleum Corp - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Holder Source Role / Reporting Ownership % Shares Holdings Value 12M Net Δ As of Details
BERKSHIRE HATHAWAY INC
3/4/5 13F
10%+ Owner · Company
28%
from 13F
348,885,177
mixed-class rows
$14,342,667,505 07 Feb 2025
Warren E. Buffett
3/4/5
10%+ Owner
mixed-class rows
348,885,177
mixed-class rows
$14,342,667,505 07 Feb 2025
VANGUARD GROUP INC
13F 13D/G
Company · The Vanguard Group
8.5%
from 13D/G
89,900,677
$3,696,715,838 31 Dec 2025
STATE STREET CORP
13F
Company
4.2%
39,539,743
$1,635,262,505 31 Dec 2025
13F
CITADEL ADVISORS LLC
13F
Company
0.28%
2,598,510
$106,850,731 31 Dec 2025
13F
RENAISSANCE TECHNOLOGIES LLC
13F
Company
0.05%
426,900
$17,554,147 31 Dec 2025
13F

Institutional Holders of Occidental Petroleum Corp - Common Stock as of Q1 2026

As of 31 Mar 2026, Occidental Petroleum Corp - Common Stock was held by 56 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 6,576,866 shares. The largest 10 holders included COOKE & BIELER LP, ENVESTNET ASSET MANAGEMENT INC, ROYAL LONDON ASSET MANAGEMENT LTD, PRINCIPAL FINANCIAL GROUP INC, NWF Advisory Services Inc., ARIZONA STATE RETIREMENT SYSTEM, STATE OF MICHIGAN RETIREMENT SYSTEM, COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS, Calamos Advisors LLC, and FIFTH THIRD BANCORP. This page lists 56 institutional shareholders reporting positions in this security for the Q1 2026 filing period.
Investor Option Weight % Change % Value $ * Price Shares Share Change Activity Report Period

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders
5
Q1 2026 holders
56
Holder diff
51
Investor Q4 2025 Shares Q1 2026 Shares Share Diff Share Chg % Q4 2025 Value $ Q1 2026 Value $ Value Diff $ Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
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