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Ownership Diff · MA vs OXY
MA vs OXY
Mastercard · Occidental Petroleum
Superinvestor ownership overlap, unique holders, and conviction comparison.
MA
Mastercard
Financials
ConvictionScore0
SignalMixed
Tracked owners6
OXY
Occidental Petroleum
Energy
ConvictionScore+22
SignalSlight accumulation
Tracked owners3
Ownership fingerprint
Who holds MA only, who holds OXY only, and who holds both.
■ MA only (6)■ Both (0)■ OXY only (3)
MA only
OXY only
Only MA · 6
- Chuck Akre17.8%
- François Rochon11.2%
- Dev Kantesaria11.2%
- Terry Smith9.8%
- Polen Capital5.6%
- Andreas Halvorsen3.7%
Both · 0
No manager holds both MA and OXY.
Only OXY · 3
- Prem Watsa13.5%
- Warren Buffett4.9%
- Carl Icahn4.8%
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Remove with Pro →Frequently asked questions
Which has more hedge-fund owners: MA or OXY?
MA (Mastercard) is held by 6 tracked superinvestors; OXY (Occidental Petroleum) is held by 3. MA has 3 more tracked holders. Full ranking by % of portfolio in the table below.
What managers hold both MA and OXY?
0 tracked superinvestors hold both MA and OXY based on the latest SEC 13F filings. Full overlap table below.
What is the overlap between MA and OXY institutional ownership?
Across 9 unique tracked holders: 6 hold only MA (67%), 0 hold both (0%), 3 hold only OXY (33%). The full Venn split + per-manager position % is on this page.
Sourced from SEC 13F filings (2026). Not investment advice. Methodology.