Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Continuing to build the Occidental stake.	Add 12.00%	+30.60M	5.40%
Joel GreenblattElite Gotham Asset Management	Add 46.00%	+834K	0.10%
Prem Watsa Fairfax Financial Aligning with Buffett on Occidental.	Add 15.00%	+510K	15.50%
Carl IcahnElite Icahn Enterprises Continued Occidental trim.	Reduce 12.00%	-2.16M	4.20%

Q3 2025(4 moves)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Building the Occidental stake.	Add 8.00%	+18.90M	4.80%
Joel GreenblattElite Gotham Asset Management	Add 134%	+1.04M	0.10%
Prem Watsa Fairfax Financial Aligning with Buffett on Occidental.	Add 20.00%	+560K	13.50%
Carl IcahnElite Icahn Enterprises Pullback from Occidental.	Reduce 15.00%	-2.70M	4.80%

Q2 2025(2 moves)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Q2 add to Occidental — the first of three consecutive quarters.	Add 5.00%	+11.40M	4.50%
Carl IcahnElite Icahn Enterprises Starting the Occidental pullback.	Reduce 20.00%	-3.80M	5.60%

Q1 2025(2 moves)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Early OXY build.	Add 4.00%	+8.70M	4.30%
Joel GreenblattElite Gotham Asset Management	Add 173%	+490K	0.00%

Q4 2024(2 moves)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Slow OXY accumulation.	Add 4.00%	+8.90M	4.10%
Joel GreenblattElite Gotham Asset Management	Add 263%	+206K	0.00%

Q2 2024(4 moves)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway OXY add.	Add 3.00%	+7.80M	4.00%
Joel GreenblattElite Gotham Asset Management	Add 12.00%	+8K	0.00%
Li LuElite Himalaya Capital	Buy (new)	+1.47M	3.60%
Carl IcahnElite Icahn Enterprises	Sell (exit)	-16.49M	0.00%

Q1 2024(1 move)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Small OXY add.	Add 2.00%	+4.30M	3.70%

Insider activity

SEC Form 4 filings — when CEOs, CFOs, and 10%+ owners buy or sell their own stock.

Insider activity (Form 4)

1 buy · 0 sells from corporate insiders

Net: INSIDER BUYING

Insider	Action	Shares	Value	Date
Vicki Hollub CEO First open-market buy in 18 months.	buy	25,000	$1.23M	Feb 4, 2026

Activist filings

Tracked SEC 13D/13G disclosures targeting Occidental Petroleum Corporation.

13D/A · Passive 13G

Berkshire Hathaway

Warren Buffett / Berkshire Hathaway · filed 2024-06-18

Passive accumulation past 10% threshold. Buffett has stated no intent to take majority. Position built Feb 2022 onward.

Stake

28.2%

Congressional trades

STOCK Act disclosures from U.S. House and Senate members trading OXY.

Member	Action	Range	Date
Kevin Hern House · R-OK	buy	$100K–$250K	2024-09-12

ETF holders

Tracked US ETFs with OXY in their top-10 holdings.

ETF	% Fund	AUM	Category
XLE Energy Select Sector SPDR Fund	2.90%	$35B	Sector

Latest news

Recent headlines for OXY.

Hedge funds holding OXY

3 superinvestors hold Occidental Petroleum as a top position. Sorted by % of portfolio.

Manager	% Portfolio
Prem Watsa Energy float compounder, aligned with Buffett.	13.5%
Warren Buffett Building toward a potential majority stake.	4.9%
Carl Icahn Activist position vs management — scaled back.	4.8%

Dividend tax by country

What will you keep of every $100 in OXY dividend?

Your country of residenceCompany is domiciled inGross dividend (example)

Withholding rate

Domestic (no cross-border)

Tax withheld

$0.00

You'd receive

$1000.00

Of $1000 gross

Source & treaty reference

Treaty: Domestic — no cross-border withholding

Citation: IRC §§ 1441–1446 (withholding applies to foreign persons; US residents not subject to WHT on US-source dividends)

U.S. residents receiving U.S.-source dividends: no cross-border withholding; taxed on return at qualified (0/15/20%) or ordinary rates.

Estimates for educational purposes only. Tax rules change; consult a qualified tax professional for your specific situation. Dividend-tax treatment depends on holding period, account type (taxable vs. retirement), investor type (individual vs. pension vs. mutual fund), limitation-on-benefits tests, and other factors not modeled here.

Full dividend-tax rules for United States investors →

Get alerts when they buy or sell OXY

One email per 13F filing — you'll know within hours if any tracked manager moves on OXY.

Related smart-money signals

Derived from the same 13F filings

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Data sourced from SEC 13F filings. OXY ownership reflects publicly disclosed long positions only. Not investment advice.