Summary
Updated Aug 30, 2026
David Weill files SEC Form 4 reports at TransMedics Group, Inc. (TMDX). 3 SEC Form 4 filings on record going back to 2025, most recently on 22 May 2026. Most recent open-market trade: sold $524K of TMDX on 6 March 2026. Lifetime open-market sales: $1.22M.
Recent Transactions
5Every recent SEC Form 4 transaction David Weill has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies David Weill 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.
- Gerardo Hernandez - $1.25M of TMDX open-market activity in the last 12 months
- Waleed H. Hassanein - $1.00M of TMDX open-market activity in the last 12 months
- Thomas J. Gunderson - $722K of TMDX open-market activity in the last 12 months
- Anil P. Ranganath - $556K of TMDX open-market activity in the last 12 months
- Edward M. Basile - $540K of TMDX open-market activity in the last 12 months
- Nicholas Corcoran - $413K of TMDX 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 Weill?
David Weill is a corporate insider of TransMedics Group, Inc. (TMDX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did David Weill last file a Form 4?
The most recent primary Form 4 on record is dated 22 May 2026, one of 3 filings going back to 2025.
Has David Weill been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($1.22M) across all tracked filings.
Where can I see all of David Weill'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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