Summary
Updated Aug 31, 2026
David R. Epstein is Director of Tempus AI, Inc. (TEM). 10 SEC Form 4 filings on record going back to 2024, most recently on 5 August 2026. Most recent open-market trade: sold $16K of TEM on 5 August 2026. Lifetime open-market sales: $180K.
Recent Transactions
10Every recent SEC Form 4 transaction David R. Epstein has reported, most recent first.
Trading Pattern
InsiderAlpha's records for David R. Epstein go back to 2024: 10 primary Form 4 filings, an average of 3.3 per year. 7 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies David R. Epstein files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Eric P. Lefkofsky - $145.40M of TEM open-market activity in the last 12 months
- Ryan Fukushima - $11.84M of TEM open-market activity in the last 12 months
- James William Rogers - $5.46M of TEM open-market activity in the last 12 months
- Andrew Polovin - $4.81M of TEM open-market activity in the last 12 months
- Thomas Edward Schoenherr - $1.19M of TEM open-market activity in the last 12 months
- Erik Phelps - $794K of TEM 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 R. Epstein?
David R. Epstein is a corporate insider, tracked as Director of Tempus AI, Inc. (TEM). InsiderAlpha holds 10 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has David R. Epstein submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has David R. Epstein been buying or selling stock?
Recorded transactions: 0 open-market purchases and 9 open-market sales ($180K) across all tracked filings.
Where can I see all of David R. Epstein'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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