Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns PSX? 13F holders and whale ownership

PSX is tracked across public portfolios in Whale Analyzer. This page answers who owns PSX, which top funds are buying PSX, aggregate disclosed value, and recent position changes based on public data. Paul Singer is the largest reported holder at $3.51B; the top five funds control 100.0% of reported ownership; institutions were net buying last quarter (1 increased, 0 reduced); the stock trades above the aggregate whale cost basis of $127.21. Top tracked holders include Paul Singer and Chris Bloomstran.

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NYQ · latest quote
$171.65
+$5.51 (+3.3%)
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2Tracked holders
$3.51BAggregate reported value
2026-05-21Page updated
1 held, 1 newRecent changes

Top holders

InvestorReported valueSharesChange
Paul Singer 13F portfolio
Elliott Investment Management holdings
$3.51B19.3MHeld
Chris Bloomstran 13F portfolio
Semper Augustus Investments holdings
$268.2K1.5KNew

Ownership concentration

Reported ownership of PSX is highly concentrated across tracked institutions.

Whale activity this quarter

Across 2 tracked institutions, 1 held, 1 increased. Net positioning is net buying.

Whale cost basis vs current price

The aggregate tracked cost basis is $127.21 versus a current price of $171.65, so PSX trades above its cost basis (+34.9%). Average unrealized P&L across tracked holders: 41%.

Sector positioning — Energy

PSX sits within the Energy sector alongside 58 other tracked names. Compare whale ownership across peers:

How to use this page

Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live PSX dashboard for price charts and cross-investor scans, or read the SEC 13F guide.

This page is generated from public filings and public disclosures. It is for research and education only and is not investment advice.

Related stock holder pages

Learn more in Whale Analyzer Academy

Deepen your read on PSX with these Whale Analyzer Academy guides:

Frequently asked questions

Who owns PSX stock?

Whale Analyzer tracks 2 public institutional holders of PSX with a combined reported value of $3.51B. See the holder table above for the largest tracked positions.

Which top funds are buying PSX?

Tracked institutions were net buying last quarter — 1 held, 1 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.

How concentrated is PSX ownership?

The top five tracked holders report 100.0% of aggregate ownership.

Is PSX above or below the whale cost basis?

The aggregate tracked cost basis is $127.21 versus a current price of $171.65 (+34.9%).

What does 13F ownership mean for PSX?

Use the interactive PSX dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.