Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns GTX? 13F holders and whale ownership

GTX is tracked across public portfolios in Whale Analyzer. This page answers who owns GTX, which top funds are buying GTX, aggregate disclosed value, and recent position changes based on public data. Howard Marks is the largest reported holder at $265M; the top five funds control 100.0% of reported ownership; institutions were net selling last quarter (0 increased, 1 reduced). Top tracked holders include Howard Marks.

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NMS · latest quote
$35.11
+$0.79 (+2.3%)
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1Tracked holders
$265.2MAggregate reported value
2026-05-21Page updated
1 reducedRecent changes

Top holders

InvestorReported valueSharesChange
Howard Marks 13F portfolio
Oaktree Capital Management holdings
$265.2M14.6MReduced

Ownership concentration

Reported ownership of GTX is highly concentrated across tracked institutions.

Whale activity this quarter

Across 1 tracked institutions, 1 reduced. Net positioning is net selling.

Sector positioning — Other

GTX sits within the Other sector alongside 670 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 GTX 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.

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Learn more in Whale Analyzer Academy

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Frequently asked questions

Who owns GTX stock?

Whale Analyzer tracks 1 public institutional holders of GTX with a combined reported value of $265.2M. See the holder table above for the largest tracked positions.

Which top funds are buying GTX?

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

How concentrated is GTX ownership?

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

What does 13F ownership mean for GTX?

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