Whale Analyzer
Top public holders · 13F and disclosure aggregation

Who owns GRBK-PA? 13F holders and whale ownership

GRBK-PA is tracked across public portfolios in Whale Analyzer. This page answers who owns GRBK-PA, which top funds are buying GRBK-PA, aggregate disclosed value, and recent position changes based on public data.

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1Tracked holders
$592.4MAggregate reported value
2026-05-19Page updated
1 reducedRecent changes

Top holders

InvestorReported valueSharesChange
David Einhorn 13F portfolio
Greenlight Capital holdings
$592.4M11.4MReduced

How to read this page

Values are reported public positions from tracked investors and institutions. They are not real-time ownership totals for the company.

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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Frequently asked questions

Who owns GRBK-PA stock?

Whale Analyzer tracks 1 public institutional holders of GRBK-PA with a combined reported value of $592.4M. See the holder table above for the largest tracked positions.

Which top funds are buying GRBK-PA?

Check the "Change" column in the holders table above. "New" means a fresh position was initiated, "Added" means an existing position was increased, and "Reduced" or "Sold" indicates trimming.

What does 13F ownership mean for GRBK-PA?

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