David Einhorn - SEC Form 4 Insider Trading Activity
Director, 10% Owner
Summary
Updated Aug 16, 2026
David Einhorn has filed 1 SEC Form 4 filing across 1 company in the last 90 days - active on both sides. Lifetime open-market purchases: $70.35M. Lifetime open-market sales: $70.35M.
Profile
David Einhorn is a corporate insider at Green Brick Partners, Inc. (GRBK). Einhorn has reported 1 insider filing with the SEC since 2024. The most recent filing was in November 2024.
- Role
- Director, 10% Owner
Board memberships
- Green Brick Partners, Inc.
Trading Pattern
InsiderAlpha's records for David Einhorn go back to 2024: 2 primary Form 4 filings, an average of 0.7 per year. The typical open-market purchase is $70.35M (1 buy totaling $70.35M). The largest single buy on record is $70.35M of GRBK in 2024. Sales side: 2 recorded sales totaling $70.35M, so the filing history runs sell-heavy by dollar value. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role David Einhorn has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Director, 10% Owner at GREENLIGHT CAPITAL RE, LTD. (GLRE) - 1 filing, 2026
- Insider at Green Brick Partners, Inc. (GRBK) - 1 filing, 2024
Recent Transactions
4Companies - Last 90 Days
1- GREENLIGHT CAPITAL RE, LTD. (GLRE) - 1 filing, last 2026-08-04
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies David Einhorn has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Joseph P. Platt Jr. - $1.03M of GLRE open-market activity in the last 12 months
- Greg Richardson - $637K of GLRE open-market activity in the last 12 months
- Ian Isaacs - $453K of GLRE open-market activity in the last 12 months
- Leonard R. Goldberg - $186K of GLRE open-market activity in the last 12 months
- David Sigmon - $130K of GLRE open-market activity in the last 12 months
- Thomas James Curnock - $125K of GLRE open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is David Einhorn?
David Einhorn is a corporate insider at Green Brick Partners, Inc. (GRBK). Einhorn has reported 1 insider filing with the SEC since 2024. The most recent filing was in November 2024.…
How many SEC Form 4 filings has David Einhorn submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has David Einhorn been buying or selling stock?
Recorded transactions: 1 open-market purchase ($70.35M) and 2 open-market sales ($70.35M) across all tracked filings.
Where can I see all of David Einhorn's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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