Security key
674599105
OCCIDENTAL PETROLEUM CORP /DE/ - Common Stock (OXY)
CUSIP: 674599105
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 801,479,066
- Total 13F value
- $52,080,184,826
- Share change
- +36,534,897
- Put/Call ratio
- 62%
- SEC-reported price per share
- $65.00
- Number of holders
- 1,292
- Value change
- +$2,616,927,103
- Number of buys
- 708
- Number of sells
- 458
- Shares outstanding
- 1,002,612,865
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
1,292
Top holders
10
OXY full security history
Ownership snapshot
Full 13F holder table
OCCIDENTAL PETROLEUM CORP /DE/ SEC filings
OCCIDENTAL PETROLEUM CORP /DE/ company facts
OCCIDENTAL PETROLEUM CORP /DE/ 13D/G history
Broader feeds
Ownership snapshot
Top reported holders of OXY - OCCIDENTAL PETROLEUM CORP /DE/ - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BERKSHIRE HATHAWAY INC
Disclosed value leader
BERKSHIRE HATHAWAY INC
Comparable rows
15/15
Latest evidence
31 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 33%
13D/G row: BERKSHIRE HATHAWAY INC
Showing 1-6 of 15 holder rows.
Quick read
BERKSHIRE HATHAWAY INC leads the comparable SEC ownership view at 33%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BERKSHIRE HATHAWAY INC's linked filing trail.
Comparable ownership
Top 5
BERKSHIRE HATHAWAY INC
33%
DODGE & COX
7.5%
VANGUARD CAPITAL MANAGEMENT LLC
5.5%
Kenneth Dillon
0.04%
Jeff F. Simmons
0.03%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BERKSHIRE HATHAWAY INC |
13D/G
3/4/5
13F
Warren E. Buffett · 10%+ Owner · Company
|
33%
|
$16,155,399,721
348,853,373 shares
|
$0 | 30 Jun 2025 |
| DODGE & COX |
13D/G
13F
Company
|
7.5%
|
$4,294,740,609
74,085,572 shares
|
-$589,540,408 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
Vanguard Capital Management
|
5.5%
|
$3,553,336,215
54,666,711 shares
|
$0 | 31 Mar 2026 |
| Kenneth Dillon |
3/4/5
Senior Vice President
|
0.04%
|
$17,842,587
392,231 shares
|
— | 28 Feb 2026 |
| Jeff F. Simmons |
3/4/5
Senior Vice President
|
0.03%
|
$15,358,196
337,617 shares
|
— | 28 Feb 2026 |
| Robert L. Peterson |
3/4/5
Senior Vice President
|
0.03%
|
$14,809,541
325,556 shares
|
— | 28 Feb 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1,292
Shares
801,479,066
Rows available
1,292
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
1,292
Q1 2026 holders
1,292
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|