Summary
Updated Aug 31, 2026
Thomas Wilder is Director of Penumbra Inc (PEN). 3 SEC Form 4 filings on record going back to 2025, most recently on 19 February 2026. Most recent open-market trade: sold $47K of PEN on 1 October 2025. Lifetime open-market sales: $137K.
Recent Transactions
3Every recent SEC Form 4 transaction Thomas Wilder has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Thomas Wilder go back to 2025: 3 primary Form 4 filings, an average of 1.5 per year. 1 recorded transaction carries a Rule 10b5-1 flag, meaning it was 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 Thomas Wilder 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.
- Arani Bose - $4.43M of PEN open-market activity in the last 12 months
- Adam Elsesser - $4.26M of PEN open-market activity in the last 12 months
- Johanna Roberts - $1.19M of PEN open-market activity in the last 12 months
- Maggie Yuen - $832K of PEN open-market activity in the last 12 months
- Harpreet Grewal - $201K of PEN 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 Thomas Wilder?
Thomas Wilder is a corporate insider, tracked as Director of Penumbra Inc (PEN). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Thomas Wilder last file a Form 4?
The most recent primary Form 4 on record is dated 19 February 2026, one of 3 filings going back to 2025.
Has Thomas Wilder been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($137K) across all tracked filings.
Where can I see all of Thomas Wilder'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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