Summary
Updated Aug 30, 2026
Christopher A. Seams is Director of ONTO INNOVATION INC. (ONTO). 4 SEC Form 4 filings on record going back to 2025, most recently on 22 May 2026.
Recent Transactions
4Every recent SEC Form 4 transaction Christopher A. Seams 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 Christopher A. Seams 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.
- Susan D. Lynch - $302K of ONTO 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 Christopher A. Seams?
Christopher A. Seams is a corporate insider, tracked as Director of ONTO INNOVATION INC. (ONTO). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Christopher A. Seams last file a Form 4?
The most recent primary Form 4 on record is dated 22 May 2026, one of 4 filings going back to 2025.
Where can I see all of Christopher A. Seams'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.
Learn More
Follow Christopher A. Seams and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial
