BERKSHIRE HATHAWAY INC
Rank #1
26.6%
- Shares
- 264.94M
- Change
- —
- Change %
- 0.00%
- Filing
- Mar 31, 2026
Unchanged
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NYSE · ENERGY · Holders
Occidental Petroleum Corporation (OXY) Institutional Ownership & Insider Trading History
Top OXY institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Section freshness
Price Jun 15, 10:05 AM EDT · Statements Mar 30, 8:00 PM EDT
Source timingDetailsHide
Data freshness
Prices update fastest. Fundamentals, analyst data, and news update on their own schedules, so check these timestamps before comparing signals.
Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
PriceLive
Last traded •
Source: Market data provider
Fundamentalsevery 1 day
Provider checked •
Source: Market data provider
Analystevery 1 day
Provider checked •
Source: Market data provider
Newsevery 4 hr
Latest item •
Source: Market data provider
Ownership read
OXY insider sentiment: Net selling.
BERKSHIRE HATHAWAY INC is the largest loaded institutional holder. 49 sale rows and 0 purchase rows are visible in the loaded Form 4 history. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
OXY
Purchases—
Sales35.38M
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
264.94M
BERKSHIRE HATHAWAY INC
Insider stance
Net selling
$723.91M sold / — bought
Latest filing
Jun 1, 2026
Most recent holder or insider filing date
Rows loaded
240
120 holder / 120 insider
- Holder rows
- 120
- Market data source
- Latest filing
- Jun 1, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 84
- 31 decreased in loaded rows
- Insider rows
- 120
- Market data source
Top 120 institutional holders
Occidental Petroleum Corporation (OXY) institutional ownership
Ranked by reported share count, with position changes and latest filing dates where ownership data supplies them.
VANGUARD GROUP INC
Rank #2
9.01%
- Shares
- 89.90M
- Change
- +699.14K
- Change %
- +78.00%
- Filing
- Dec 31, 2025
Increased
DODGE & COX
Rank #3
7.43%
- Shares
- 74.09M
- Change
- -5.39M
- Change %
- -6.78%
- Filing
- Mar 31, 2026
Decreased
BLACKROCK
Rank #4
5.28%
- Shares
- 52.64M
- Change
- +2.02M
- Change %
- +4.00%
- Filing
- Mar 31, 2026
Increased
VANGUARD CAPITAL MANAGEMENT LLC
Rank #5
4.75%
- Shares
- 47.41M
- Change
- +47.41M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
STATE STREET CORP
Rank #6
4.34%
- Shares
- 43.27M
- Change
- +3.73M
- Change %
- +9.44%
- Filing
- Mar 31, 2026
Increased
VANGUARD PORTFOLIO MANAGEMENT LLC
Rank #7
3.63%
- Shares
- 36.19M
- Change
- +36.19M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
GEODE CAPITAL MANAGEMENT
Rank #8
1.94%
- Shares
- 19.37M
- Change
- +522.66K
- Change %
- +2.77%
- Filing
- Mar 31, 2026
Increased
GQG PARTNERS LLC
Rank #9
1.84%
- Shares
- 18.31M
- Change
- +18.31M
- Change %
- —
- Filing
- Mar 31, 2026
Initiated
MORGAN STANLEY
Rank #10
1.10%
- Shares
- 10.98M
- Change
- -421.90K
- Change %
- -3.70%
- Filing
- Mar 31, 2026
Decreased
H&H INTERNATIONAL INVESTMENT
Rank #11
1.03%
- Shares
- 10.26M
- Change
- -2.91M
- Change %
- -22.10%
- Filing
- Mar 31, 2026
Decreased
DIMENSIONAL FUND ADVISORS LP
Rank #12
1.00%
- Shares
- 10.01M
- Change
- -588.57K
- Change %
- -5.55%
- Filing
- Mar 31, 2026
Decreased
AQR CAPITAL MANAGEMENT LLC
Rank #13
0.87%
- Shares
- 8.72M
- Change
- +6.07M
- Change %
- +2.29%
- Filing
- Mar 31, 2026
Increased
INVESCO LTD.
Rank #14
0.76%
- Shares
- 7.56M
- Change
- +831.03K
- Change %
- +12.35%
- Filing
- Mar 31, 2026
Increased
BANK OF AMERICA CORP
Rank #15
0.67%
- Shares
- 6.71M
- Change
- +486.07K
- Change %
- +7.81%
- Filing
- Mar 31, 2026
Increased
NORTHERN TRUST CORP
Rank #16
0.65%
- Shares
- 6.50M
- Change
- +5.94K
- Change %
- +9.00%
- Filing
- Mar 31, 2026
Increased
BANK OF NEW YORK MELLON CORP
Rank #17
0.58%
- Shares
- 5.76M
- Change
- +1.78M
- Change %
- +44.60%
- Filing
- Mar 31, 2026
Increased
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Rank #18
0.56%
- Shares
- 5.64M
- Change
- +244.79K
- Change %
- +4.54%
- Filing
- Mar 31, 2026
Increased
UBS AM
Rank #19
0.49%
- Shares
- 4.87M
- Change
- +912.80K
- Change %
- +23.05%
- Filing
- Mar 31, 2026
Increased
GOLDMAN SACHS GROUP INC
Rank #20
0.47%
- Shares
- 4.65M
- Change
- +192.91K
- Change %
- +4.33%
- Filing
- Mar 31, 2026
Increased
| # | Institution | % held | Shares | Change | Change % | Filing date |
|---|---|---|---|---|---|---|
| 1 | BERKSHIRE HATHAWAY INC | 26.6% | 264.94M | — Unchanged | 0.00% | Mar 31, 2026 |
| 2 | 9.01% | 89.90M | +699.14K Increased | +78.00% | Dec 31, 2025 | |
| 3 | DODGE & COX | 7.43% | 74.09M | -5.39M Decreased | -6.78% | Mar 31, 2026 |
| 4 | 5.28% | 52.64M | +2.02M Increased | +4.00% | Mar 31, 2026 | |
| 5 | 4.75% | 47.41M | +47.41M Initiated | — | Mar 31, 2026 | |
| 6 | 4.34% | 43.27M | +3.73M Increased | +9.44% | Mar 31, 2026 | |
| 7 | 3.63% | 36.19M | +36.19M Initiated | — | Mar 31, 2026 | |
| 8 | 1.94% | 19.37M | +522.66K Increased | +2.77% | Mar 31, 2026 | |
| 9 | GQG PARTNERS LLC | 1.84% | 18.31M | +18.31M Initiated | — | Mar 31, 2026 |
| 10 | 1.10% | 10.98M | -421.90K Decreased | -3.70% | Mar 31, 2026 | |
| 11 | H&H INTERNATIONAL INVESTMENT | 1.03% | 10.26M | -2.91M Decreased | -22.10% | Mar 31, 2026 |
| 12 | 1.00% | 10.01M | -588.57K Decreased | -5.55% | Mar 31, 2026 | |
| 13 | AQR CAPITAL MANAGEMENT LLC | 0.87% | 8.72M | +6.07M Increased | +2.29% | Mar 31, 2026 |
| 14 | 0.76% | 7.56M | +831.03K Increased | +12.35% | Mar 31, 2026 | |
| 15 | 0.67% | 6.71M | +486.07K Increased | +7.81% | Mar 31, 2026 | |
| 16 | 0.65% | 6.50M | +5.94K Increased | +9.00% | Mar 31, 2026 | |
| 17 | BANK OF NEW YORK MELLON CORP | 0.58% | 5.76M | +1.78M Increased | +44.60% | Mar 31, 2026 |
| 18 | 0.56% | 5.64M | +244.79K Increased | +4.54% | Mar 31, 2026 | |
| 19 | 0.49% | 4.87M | +912.80K Increased | +23.05% | Mar 31, 2026 | |
| 20 | 0.47% | 4.65M | +192.91K Increased | +4.33% | Mar 31, 2026 |
Showing 20 of 120 matching institutional rows.Load more institutions
Recent insider transactions
Occidental Petroleum Corporation (OXY) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
HOLLUB, VICKI A.
Director
- Shares
- 3.18K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 1, 2026
JACKSON, RICHARD A.
Director, President and CEO
- Shares
- 101.83K
- % company
- 0.01%
- Price
- No cash value
- Value
- No cash value
Filed Jun 1, 2026
HOLLUB, VICKI A.
Director
- Shares
- 701
- % company
- <0.01%
- Price
- $58.92
- Value
- $41,303
Filed Jun 1, 2026
HOLLUB, VICKI A.
Director
- Shares
- 73.48K
- % company
- <0.01%
- Price
- $58.92
- Value
- $4,329,265
Filed Jun 1, 2026
ROBINSON, KENNETH B.
Director
- Shares
- 913
- % company
- <0.01%
- Price
- $60.27
- Value
- $55,027
Filed May 4, 2026
ONEILL, CLAIRE
Director
- Shares
- 3.73K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 4, 2026
SHEARER, BOB
Director
- Shares
- 3.73K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 4, 2026
POLADIAN, AVEDICK BARUYR
Director
- Shares
- 4.15K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 4, 2026
KLESSE, WILLIAM R
Director
- Shares
- 913
- % company
- <0.01%
- Price
- $60.27
- Value
- $55,027
Filed May 4, 2026
KLESSE, WILLIAM R
Director
- Shares
- 4.15K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 4, 2026
GUTIERREZ, CARLOS M
Director
- Shares
- 3.73K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 4, 2026
MOORE, JACK B
Director
- Shares
- 6.72K
- % company
- <0.01%
- Price
- No cash value
- Value
- No cash value
Filed May 4, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | HOLLUB, VICKI A. Director | <0.01% | Award / grant | 3.18K | No cash value | No cash value | Jun 1, 2026 |
| 2 | JACKSON, RICHARD A. Director, President and CEO | 0.01% | Award / grant | 101.83K | No cash value | No cash value | Jun 1, 2026 |
| 3 | HOLLUB, VICKI A. Director | <0.01% | Sale to issuer | 701 | $58.92 | $41,303 | Jun 1, 2026 |
| 4 | HOLLUB, VICKI A. Director | <0.01% | Sale to issuer | 73.48K | $58.92 | $4,329,265 | Jun 1, 2026 |
| 5 | ROBINSON, KENNETH B. Director | <0.01% | Sale to issuer | 913 | $60.27 | $55,027 | May 4, 2026 |
| 6 | ONEILL, CLAIRE Director | <0.01% | Award / grant | 3.73K | No cash value | No cash value | May 4, 2026 |
| 7 | SHEARER, BOB Director | <0.01% | Award / grant | 3.73K | No cash value | No cash value | May 4, 2026 |
| 8 | POLADIAN, AVEDICK BARUYR Director | <0.01% | Award / grant | 4.15K | No cash value | No cash value | May 4, 2026 |
| 9 | KLESSE, WILLIAM R Director | <0.01% | Sale to issuer | 913 | $60.27 | $55,027 | May 4, 2026 |
| 10 | KLESSE, WILLIAM R Director | <0.01% | Award / grant | 4.15K | No cash value | No cash value | May 4, 2026 |
| 11 | GUTIERREZ, CARLOS M Director | <0.01% | Award / grant | 3.73K | No cash value | No cash value | May 4, 2026 |
| 12 | MOORE, JACK B Director | <0.01% | Award / grant | 6.72K | No cash value | No cash value | May 4, 2026 |
Showing 12 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest OXY shareholders?
BERKSHIRE HATHAWAY INC is the largest institutional holder in the loaded OXY ownership dataset, with 264.94 million shares, or about 26.56% of shares outstanding. The table ranks additional institutions by reported share count.
What is institutional ownership of OXY?
The current TECHi snapshot has 120 loaded institutional rows for Occidental Petroleum Corporation. 84 rows are marked increased or initiated, while 31 rows are marked decreased, with the latest holder filing dated Mar 31, 2026.
Where can I see Occidental Petroleum Corporation insider transactions?
The insider transaction table currently shows 120 loaded Form 4 rows for OXY, with the latest insider filing dated Jun 1, 2026. It separates purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are not confused with open-market trades.
Are OXY insiders buying or selling?
The loaded OXY Form 4 rows currently read Net selling: 49 sale rows and 0 purchase rows. Awards, gifts, conversions, and tax withholding are shown separately because they do not carry the same signal as open-market buying or selling.
Who is the most active OXY insider in the loaded filings?
OCCIDENTAL, PETROLEUM CORP /DE/ is the most active insider by absolute share movement in the loaded OXY rows, with 34.81 million shares moving across the visible filing history. Review the action labels before treating that activity as buying or selling.