Summary
Updated Aug 30, 2026
Marilyn Matz is Director of TERADYNE, INC (TER). 6 SEC Form 4 filings on record, most recently on 18 August 2026. Most recent open-market trade: sold $510K of TER on 18 August 2026. Lifetime open-market sales: $1.86M.
Recent Transactions
6Every recent SEC Form 4 transaction Marilyn Matz 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 Marilyn Matz 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.
- Gregory Stephen Smith - $8.23M of TER open-market activity in the last 12 months
- Mercedes Johnson - $1.03M of TER open-market activity in the last 12 months
- Shannon John Poulin - $581K of TER open-market activity in the last 12 months
- Regan Mills - $341K of TER open-market activity in the last 12 months
- Ryan Driscoll - $257K of TER 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 Marilyn Matz?
Marilyn Matz is a corporate insider, tracked as Director of TERADYNE, INC (TER). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Marilyn Matz submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Has Marilyn Matz been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($1.86M) across all tracked filings.
Where can I see all of Marilyn Matz'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 Marilyn Matz 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
