SEC Filing Analysis: OCCIDENTAL PETROLEUM CORP /DE/

Executive Summary

• Trading Significance: Low
• Key Takeaway: Vanguard Group reports 0% ownership following an internal corporate realignment; subsidiaries will now report separately.
• Market Impact: Neutral - This is an administrative change in reporting structure, not a liquidation of assets.

Company Information

Field	Value
Company	OCCIDENTAL PETROLEUM CORP /DE/
CIK	0000797468
Industry	Crude Petroleum & Natural Gas
Market Cap	$53.45 Billion

Insider Information

Field	Value
Name	The Vanguard Group
CIK	0000102909
Type	Institutional Investment Manager
Location	Malvern, PA

Transaction Details

Field	Value
Form Type	SCHEDULE 13G/A
Event Date	03/13/2026
Filing Date	2026/03/27
Shares Owned After	0
Percent of Class	0%
Ownership Type	Beneficial Ownership Disclaimed

Financial Impact Assessment

Transaction Materiality

Metric	Value
Transaction Value	N/A (Administrative Change)
% of Market Cap	N/A
Shares Transacted	N/A
Post-Transaction Ownership	0 shares (0% of outstanding)
Materiality Assessment	Low (Technical Filing)

Impact Evaluation

• Market Cap Context: While Occidental is a Large Cap company ($53.45B), this filing represents a technical change in how Vanguard aggregates its holdings rather than a market transaction.
• Ownership Concentration: The filing indicates The Vanguard Group, Inc. (parent) no longer aggregates subsidiary holdings. Investors should look for separate filings from Vanguard subsidiaries for accurate ownership data.
• Transaction Significance: The reduction to 0% is purely due to the application of SEC Release No. 34-39538 regarding disaggregated reporting.

Market Impact Analysis

Stock Impact Prediction

• Direction: Neutral
• Reasoning: The filing explicitly states the change is due to an "internal realignment" on January 12, 2026. It confirms that subsidiaries pursue the same investment strategies but will report separately. There is no evidence of a sell-off.

Volume & Sentiment

• Expected Volume Impact: Negligible.
• Sentiment Indicator: Neutral. Algorithmic traders might initially flag the "0% ownership" drop, but human analysis confirms this is a non-event for the stock price.

Investment Insights

Key Takeaways

1. Administrative Change: Vanguard has shifted to disaggregated reporting; the parent company now reports 0 shares.
2. No Liquidation: The footnotes clarify that subsidiaries continue to hold securities but report independently.
3. Data Integrity: Investors tracking institutional ownership should be aware that Vanguard's total stake may now be split across multiple CIKs or reporting entities.

Additional Context

Transaction Notes

• Footnote Analysis: "On January 12, 2026, The Vanguard Group, Inc. went through an internal realignment... certain subsidiaries... will report beneficial ownership separately... The Vanguard Group, Inc. no longer has... beneficial ownership over securities beneficially owned by such subsidiaries."