Occidental Petroleum Corporation
Occidental Petroleum Corporation (OXY) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · OXY · as of Sep 30, 2025
Ownership Breakdown
1,240
Institutional Holders
▲ 22 vs Q2
$35.96B
Total Inst. Value
▲ $4.42B vs Q2
994.63M
Shares Outstanding
freeFloat 99.59%
760.82M
13F Shares Held
▲ 9.52M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
OXY largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BERKSHIRE HATHAWAY INC crude petroleum & natural gas | 264.94M | 26.89% | 26.89% | $12.52T | Nov 14, 2025 | — held |
VANGUARD GROUP INC crude petroleum & natural gas | 89.20M | 9.06% | 9.06% | $4.21T | Nov 7, 2025 | ▲ 697.5K |
DODGE & COX crude petroleum & natural gas | 79.88M | 8.11% | 8.11% | $3.77T | Nov 13, 2025 | ▼ 371.0K |
BLACKROCK, INC. crude petroleum & natural gas | 49.44M | 5.02% | 5.02% | $2.34T | Nov 12, 2025 | ▲ 1.63M |
STATE STREET CORP crude petroleum & natural gas | 38.71M | 3.93% | 3.93% | $1.84T | Nov 14, 2025 | ▼ 333.6K |
GEODE CAPITAL MANAGEMENT, LLC crude petroleum & natural gas | 18.68M | 1.90% | 1.90% | $878.95B | Nov 12, 2025 | ▲ 588.8K |
H&H INTERNATIONAL INVESTMENT, LLC crude petroleum & natural gas | 13.56M | 1.38% | 1.38% | $640.53B | Nov 14, 2025 | — held |
MORGAN STANLEY crude petroleum & natural gas | 13.25M | 1.35% | 1.35% | $626.14B | May 27, 2026 | ▲ 2.61M |
SUSQUEHANNA INTERNATIONAL GROUP, LLP crude petroleum & natural gas | 9.00M | 91.32% | 91.32% | $425.04B | Nov 14, 2025 | ▲ 2.09M |
DIMENSIONAL FUND ADVISORS LP crude petroleum & natural gas | 8.72M | 88.51% | 88.51% | $412.04B | Nov 12, 2025 | ▲ 900.7K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
26
Increased
+17.40M shares0
New Positions
first time holders19
Decreased
−10.88M shares0
Sold Out
fully exitedNet shares change (top 50)
+6.52M
+17.40M / −10.88M
Net new holders
+7
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
OXY insider trading · insider activity
Source: SEC Form 4
10
Buy transactions
8
Sell transactions
1.25
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Jackson Richard A. President and CEO | Jun 1, 2026 | Award | 101,833 | — | — | 439.3K | Form 4 ↗ |
Hollub Vicki A. director | Jun 1, 2026 | Award | 3,183 | — | — | 1.11M | Form 4 ↗ |
Hollub Vicki A. director | Jun 1, 2026 | Tax Withhold | 701 | $58.92 | $41.3K | 1.11M | Form 4 ↗ |
Hollub Vicki A. director | Jun 1, 2026 | Tax Withhold | 73,477 | $58.92 | $4.33M | 1.04M | Form 4 ↗ |
MOORE JACK B director | May 4, 2026 | Award | 6,720 | — | — | 77.9K | Form 4 ↗ |
MOORE JACK B director | May 4, 2026 | Tax Withhold | 1,479 | $60.27 | $89.1K | 76.4K | Form 4 ↗ |
BAILEY VICKY A director | May 4, 2026 | Award | 3,734 | — | — | 16.7K | Form 4 ↗ |
BAILEY VICKY A director | May 4, 2026 | Tax Withhold | 1,223 | $60.27 | $73.7K | 15.5K | Form 4 ↗ |
Robinson Kenneth B. director | May 4, 2026 | Award | 4,149 | — | — | 16.3K | Form 4 ↗ |
Robinson Kenneth B. director | May 4, 2026 | Tax Withhold | 913 | $60.27 | $55.0K | 15.4K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Occidental Petroleum Corporation (OXY) is primarily owned by institutional investors, who hold approximately 76.5% of total shares outstanding. Company insiders own approximately 0.41%, while retail and public investors account for the remaining 23.10%.
The largest institutional shareholder of Occidental Petroleum Corporation is BERKSHIRE HATHAWAY INC, holding approximately 264.94 million shares — equal to 26.89% of outstanding shares — as of September 30, 2025.
A total of 1,240 institutional investors currently hold OXY stock, with a combined institutional value of approximately $35.96 billion as of the most recent 13F filing period.
Frequently asked questions
OXY ownershipOccidental Petroleum Corporation (OXY) is primarily owned by institutional investors, who hold approximately 76.5% of shares. The largest shareholder is BERKSHIRE HATHAWAY INC with a 26.89% stake. Company insiders hold 0.41%. Data sourced from SEC Form 13F as of September 30, 2025.