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OXYOccidental Petroleum · Insider ownership research

Occidental Petroleum insiders: what they own and what they did with it

None of it through sales. No officer or director reported an open-market sale in this period.

Updated Oct 9, 2026 from SEC filings · covers Oct 10, 2025 to Oct 9, 2026
2
buyers among officers and directors (2 trades), past 12 months
0 of 18
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 10, 2026 to Oct 9, 2026
Sep 30, 2026Richard Jackson had 4.1K shares ($228K) withheld by the company for taxes (not a market sale). That is 0.9% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Richard Jackson
President and CEO, Director
4,124$55.320.9%449KSep 30, 2026Oct 2, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 25, 2026Vicki Hollub gave away 90K shares as a gift. That is 8.5% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Vicki Hollub
Director
90,000n/a8.5%973KSep 25, 2026Sep 29, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? Less than usual: no sales, against a 5-year average of 26K shares a year. 0 insiders sold; the average is 0 a year. Year by year
Latest filing: Filed Oct 2 for a tax withholding on Sep 30. Richard Jackson had 4.1K shares withheld by the company for taxes. Filing
32 SEC ownership filings in the period · See the evidence

What stands out

Two insiders bought shares: Richard Jackson (4.8K shares, $250K) and William Klesse (5K shares, $195K). These are the first by current officers or directors since Mar 28, 2022.Richard Jackson: purchase, Jun 23, 2026 · William Klesse: purchase, Dec 16, 2025
Tax withholding outweighed market sales: the company withheld $12.8M of officers' and directors' shares for taxes, against $0 sold on the open market. The largest was Vicki Hollub ($7.2M withheld).Largest withholding, Jun 1, 2026

Percentages cover all 18 officers and directors. Disclosed company stock is not an insider's whole wealth.

Common questions

Is the Occidental Petroleum CEO selling stock?

No. Richard Jackson reported no open-market sales in the past 12 months.

Are any Occidental Petroleum insiders buying?

Yes. 2 officers or directors reported 2 purchases in the past 12 months (Form 4 code P, which includes private purchases).

The evidence

The full ownership picture18 of 18 insiders fully reconciled · 18 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 9, 2025SoldHeld Oct 9, 2026Still held
Vicki Hollub
i
Minor difference of 28,446 shares. Unexplained small increases, consistent with stock unit vesting or reinvested dividends. Unexplained small increases, consistent with stock unit vesting or reinvested dividends.
Director
1.04M01.00Mno sales
Vesting, gifts, unvested awards and holding lines for Vicki Hollub
0shares vested or exercised
−90Kgifted (net of own trusts)
−131Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Unexplained small increases, consistent with stock unit vesting or reinvested dividends.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock1,011,812974,835
OPC Savings PlanCommon Stock25,60426,950

Reconciliation: minor difference of 28,446 shares. Unexplained small increases, consistent with stock unit vesting or reinvested dividends.

Kenneth Dillon
i
Minor difference of 994 shares. Difference is under 0.5% of holdings.
Senior Vice President
362K0392Kno sales
Vesting, gifts, unvested awards and holding lines for Kenneth Dillon
0shares vested or exercised
0gifted (net of own trusts)
−17Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock343,320372,201
OPC Savings PlanCommon Stock19,03620,030

Reconciliation: minor difference of 994 shares. Difference is under 0.5% of holdings.

Jeff Simmons
i
Minor difference of 656 shares. Difference is under 0.5% of holdings.
Senior Vice President
322K0338Kno sales
Vesting, gifts, unvested awards and holding lines for Jeff Simmons
0shares vested or exercised
0gifted (net of own trusts)
−9.4Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock318,047332,726
OPC Savings PlanCommon Stock4,2354,891

Reconciliation: minor difference of 656 shares. Difference is under 0.5% of holdings.

Richard Jackson
i
Minor difference of 707 shares. Difference is under 0.5% of holdings.
President and CEO, Director
308K0450Kno sales
Vesting, gifts, unvested awards and holding lines for Richard Jackson
0shares vested or exercised
0gifted (net of own trusts)
−22Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock298,822439,974
OPC Savings PlanCommon Stock9,39010,097

Reconciliation: minor difference of 707 shares. Difference is under 0.5% of holdings.

Robert Peterson
i
Minor difference of 826 shares. Difference is under 0.5% of holdings.
Senior Vice President
299K0326Kno sales
Vesting, gifts, unvested awards and holding lines for Robert Peterson
0shares vested or exercised
0gifted (net of own trusts)
−16Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock287,910313,199
OPC Savings PlanCommon Stock11,53112,357

Reconciliation: minor difference of 826 shares. Difference is under 0.5% of holdings.

Sunil Mathew
i
Minor difference of 621 shares. Difference is under 0.5% of holdings.
SVP & CFO
217K0234Kno sales
Vesting, gifts, unvested awards and holding lines for Sunil Mathew
0shares vested or exercised
0gifted (net of own trusts)
−9.7Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock212,095228,739
OPC Savings PlanCommon Stock4,4405,061

Reconciliation: minor difference of 621 shares. Difference is under 0.5% of holdings.

William Klesse
Director
214K0222Kno sales
Vesting, gifts, unvested awards and holding lines for William Klesse
0shares vested or exercised
0gifted (net of own trusts)
−913withheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock213,913222,149
Sylvia Kerrigan
i
Minor difference of 189 shares. Difference is under 0.5% of holdings.
SVP & Chief Legal Officer
150K0181Kno sales
Vesting, gifts, unvested awards and holding lines for Sylvia Kerrigan
0shares vested or exercised
0gifted (net of own trusts)
−18Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock148,837179,516
OPC Savings PlanCommon Stock1,4671,656

Reconciliation: minor difference of 189 shares. Difference is under 0.5% of holdings.

Christopher Champion
i
Minor difference of 632 shares. Difference is under 0.5% of holdings. Includes unvested RSUs, amount not disclosed.
VP, CAO and Controller
133K0148Kno sales
Vesting, gifts, unvested awards and holding lines for Christopher Champion
0shares vested or exercised
0gifted (net of own trusts)
−8.7Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock129,924144,004
OPC Savings PlanCommon Stock2,9883,620

Reconciliation: minor difference of 632 shares. Difference is under 0.5% of holdings.

Avedick Poladian
Director
90K095Kno sales
Vesting, gifts, unvested awards and holding lines for Avedick Poladian
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock90,42679,575
Trust 1Common Stock05,000
Trust 2Common Stock05,000
Trust 3Common Stock05,000
Carlos Gutierrez
Director
75K083Kno sales
Vesting, gifts, unvested awards and holding lines for Carlos Gutierrez
0shares vested or exercised
+3.7Kgifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock75,26182,651
Jack Moore
i
Minor difference of 1,170 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
70K076Kno sales
Vesting, gifts, unvested awards and holding lines for Jack Moore
0shares vested or exercised
0gifted (net of own trusts)
−1.5Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock70,02076,431

Reconciliation: minor difference of 1,170 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Bob Shearer
Director
63K066Kno sales
Vesting, gifts, unvested awards and holding lines for Bob Shearer
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock62,72966,463
Andrew Gould
Director
43K046Kno sales
Vesting, gifts, unvested awards and holding lines for Andrew Gould
0shares vested or exercised
0gifted (net of own trusts)
−1.5Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock42,85046,334
Brad Pollack
i
Started reporting during the period; starting holdings are from the Form 3.
SVP & General Counsel
19K045Kno sales
Vesting, gifts, unvested awards and holding lines for Brad Pollack
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock16,37642,660
OPC Savings PlanCommon Stock2,4252,425
Vicky Bailey
Director
13K015Kno sales
Vesting, gifts, unvested awards and holding lines for Vicky Bailey
0shares vested or exercised
0gifted (net of own trusts)
−1.2Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock12,97915,490
Claire ONeill
i
Minor difference of 58 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
12K016Kno sales
Vesting, gifts, unvested awards and holding lines for Claire ONeill
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock12,47316,265

Reconciliation: minor difference of 58 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Kenneth Robinson
i
Minor difference of 258 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
12K015Kno sales
Vesting, gifts, unvested awards and holding lines for Kenneth Robinson
0shares vested or exercised
0gifted (net of own trusts)
−913withheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock11,86515,359

Reconciliation: minor difference of 258 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

18 of 18 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (7 exactly, 11 with a minor or footnoted difference). Percentages cover all 18 officers and directors. "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

Is this normal? Selling year by year5 earlier years to compare with

Less than usual: no sales, against a 5-year average of 26K shares a year. 0 insiders sold; the average is 0 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 9, 2026
Latest 12 months
00$0
Oct 9, 2025
1 year earlier
00$0
Oct 9, 2024
2 years earlier
00$0
Oct 10, 2023
3 years earlier
00$0
Oct 10, 2022
4 years earlier
132K2$9.0M
Oct 10, 2021
5 years earlier
00$0

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertaintyEvery officer and director reconciles

Every officer and director reconciles for this period.

Vicki Hollub: minor difference of 28,446 shares. Unexplained small increases, consistent with stock unit vesting or reinvested dividends.

Kenneth Dillon: minor difference of 994 shares. Difference is under 0.5% of holdings.

Jeff Simmons: minor difference of 656 shares. Difference is under 0.5% of holdings.

Richard Jackson: minor difference of 707 shares. Difference is under 0.5% of holdings.

Robert Peterson: minor difference of 826 shares. Difference is under 0.5% of holdings.

Sunil Mathew: minor difference of 621 shares. Difference is under 0.5% of holdings.

Sylvia Kerrigan: minor difference of 189 shares. Difference is under 0.5% of holdings.

Christopher Champion: minor difference of 632 shares. Difference is under 0.5% of holdings.

Jack Moore: minor difference of 1,170 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Claire ONeill: minor difference of 58 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Kenneth Robinson: minor difference of 258 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Inferred typo: the share class "Common Stoc." is treated as the same class as "Common Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Casey Olson, 133,785 shares): old title, new title

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology1,474 filings from SEC EDGAR, and how we read them

All 1,474 Forms 3, 4 and 5 filed for Occidental Petroleum (SEC CIK 797468) from Sep 3, 2002 to Oct 2, 2026, retrieved from SEC EDGAR on Oct 9, 2026. Prices are the ones reported in each filing, often weighted averages. 38 filings were left out because Occidental Petroleum filed them as an owner of another company's stock. 108 older filings exist only on paper and could not be read.

Probable 2-for-1 stock split on or before Aug 15, 2006 (split date stated in a footnote). Splits aren't reported as transactions; 18 holding lines changed by exactly this ratio, so earlier share counts are restated.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (61)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
BERKSHIRE HATHAWAY INCFeb 11, 2025446,811,119 shares, last reported balance as of Feb 7, 2025
Peter BennettMar 1, 2024152,235 shares, last reported balance as of Mar 1, 2024
Neil AckermanMay 15, 202362,378 shares, last reported balance as of May 5, 2023
Stephen ChazenMay 11, 2022293,777 shares, last reported balance as of May 9, 2022
Marcia BackusMar 2, 2022154,805 shares, last reported balance as of Feb 28, 2022
Andrew LanghamMay 12, 202121,401 shares, last reported balance as of May 10, 2021
Hernandez PalauMay 12, 202121,434 shares, last reported balance as of May 10, 2021
Gaoxiang HuMay 12, 20219,562 shares, last reported balance as of May 10, 2021
Carl IcahnApr 7, 2021162,254,542 shares, last reported balance as of Apr 6, 2021
Burnis HebertSep 2, 202048,880 shares, last reported balance as of May 29, 2020
Oscar BrownJun 9, 202036,223 shares, last reported balance as of Jun 8, 2020
Nick GrazianoJun 3, 202013,890 shares, last reported balance as of Jun 1, 2020
Elisse WalterMar 4, 202024,842 shares, last reported balance as of Mar 4, 2020
Edward LoweMar 3, 2020204,170 shares, last reported balance as of Feb 28, 2020
Glenn VangolenMar 3, 2020114,629 shares, last reported balance as of Feb 28, 2020
Cedric BurgherMar 3, 2020120,091 shares, last reported balance as of Feb 28, 2020
Robert PalmerMar 3, 202037,126 shares, last reported balance as of Feb 28, 2020
Margaret ForanAug 15, 201950,828 shares, last reported balance as of Aug 14, 2019
Jennifer KirkJul 16, 201937,381 shares, last reported balance as of Jul 12, 2019
Eugene BatchelderJun 11, 201950,248 shares, last reported balance as of Jun 10, 2019
Spencer AbrahamMay 14, 201949,342 shares, last reported balance as of May 13, 2019
Howard AtkinsMay 14, 201928,073 shares, last reported balance as of May 10, 2019
Joseph ElliottJul 13, 201862,874 shares, last reported balance as of Jul 12, 2018
John FeickMay 9, 201846,503 shares, last reported balance as of May 7, 2018
Christopher StavrosMar 2, 201775,972 shares, last reported balance as of Feb 28, 2017
Cynthia WalkerFeb 18, 201621,866 shares, last reported balance as of Feb 17, 2016
Willie ChiangFeb 13, 201519,399 shares, last reported balance as of Dec 13, 2012
Edward DjerejianDec 19, 201431,744 shares, last reported balance as of Dec 17, 2014
William AlbrechtJul 11, 201449,909 shares, last reported balance as of Jul 9, 2014
Roy PineciJul 11, 201427,768 shares, last reported balance as of Jul 9, 2014
Chuck AndersonNov 12, 201341,548 shares, last reported balance as of Oct 15, 2013
Donald De BrierOct 16, 2013683,266 shares, last reported balance as of Oct 15, 2013
James LienertOct 16, 2013146,266 shares, last reported balance as of Oct 15, 2013
John AleApr 18, 201314,915 shares, last reported balance as of Apr 18, 2013
Ray IraniDec 21, 20127,917,622 shares, last reported balance as of Dec 21, 2012
Ray IraniDec 21, 201212,000 shares, last reported balance as of Dec 21, 2012
Aziz SyrianiMay 8, 201277,160 shares, last reported balance as of May 7, 2012
Rosemary TomichMay 8, 201265,894 shares, last reported balance as of May 7, 2012
Walter WeismanMay 7, 201239,044 shares, last reported balance as of Apr 30, 2012
Rodolfo SegoviaMay 19, 2011111,600 shares, last reported balance as of May 19, 2011
John ChalstyMay 11, 201061,406 shares, last reported balance as of May 10, 2010
Irvin MaloneyMay 11, 201055,713 shares, last reported balance as of May 10, 2010
Ronald BurkleMay 5, 200954,000 shares, last reported balance as of May 4, 2009
Casey OlsonFeb 6, 2009106,998 shares, last reported balance as of Feb 5, 2009
James HavertJul 22, 200886,382 shares, last reported balance as of Jul 22, 2008
Jim LeonardJul 22, 200821,090 shares, last reported balance as of Jul 22, 2008
Martin CozynApr 2, 200810,684 shares, last reported balance as of Apr 1, 2008
Richard HallockFeb 22, 2008357,537 shares, last reported balance as of Feb 21, 2008
John MorganFeb 22, 2008434,624 shares, last reported balance as of Feb 21, 2008
Chad DreierMay 8, 200740,666 shares, last reported balance as of May 7, 2007
Samuel Dominick Jr.Feb 11, 2005193,862 shares, last reported balance as of Feb 9, 2005
Dale LauranceDec 14, 20041,577,576 shares, last reported balance as of Dec 13, 2004
John HurstFeb 17, 200458,674 shares, last reported balance as of Feb 17, 2004
Roger HirlNo balance on record
Aurmond Watkins Jr.No balance on record
Kenneth HuffmanNo balance on record
Robert McGeeNo balance on record
Richard SwanNo balance on record
Donald Moore Jr.No balance on record
Lawrence MeriageNo balance on record
Anthony LeachNo balance on record

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