Key Points
The Director traded 400 shares at $351.11 per share for a total value of $140,444 on September 17, 2026.
The disposition represents 3% of the direct holdings held prior to the filing.
The Director retains a direct stake of 13,840 shares with a market value of $4.9 million as of the September 17, 2026 market close.
Marilyn Matz, a member of the Board of Directors at Teradyne, Inc. (NASDAQ:TER), sold 400 shares of common stock on September 17, 2026, a transaction valued at $140,444 according to a recent SEC Form 4 filing.
Transaction summary
| Metric | Value |
|---|---|
| Shares sold | 400 |
| Transaction value | $140,444 |
| Post-transaction shares (directly held) | ~13,840 |
| Post-transaction value | $4.9 million |
Transaction value based on SEC Form 4 weighted average sale price ($351.11); post-transaction value based on September 17, 2026 market close ($353.13).
Key questions
- What is the context of this transaction?
The sale was conducted under a Rule 10b5-1 trading plan adopted on February 13, 2026. This arrangement indicates the transaction was pre-scheduled to facilitate routine portfolio management and diversification for the director. - How has the equity performed relative to this trade?
Shares of the automated testing solutions company have appreciated 209% for the 12 months ending September 17, 2026. The director executed this disposition at a price of $351.11 per share, while the market closed at $353.13 on the day of the trade. - What is the current insider ownership structure?
Following the sale of 400 shares, Marilyn Matz retains a direct equity stake of 13,840 shares. This remaining position represents approximately 0.0089% of the company's total shares outstanding.
Company Overview
| Metric | Value |
|---|---|
| Share Price (as of market close 2026-09-17) | $353.13 |
| Market Capitalization | $55.9 billion |
| Revenue (TTM) | $4.5 billion |
| Net Income (TTM) | $1.2 billion |
Company Snapshot
- Teradyne designs, manufactures, sells, and services automated testing equipment and software solutions for semiconductor manufacturers, delivering comprehensive test capabilities across wafer-level and finished device package stages for automotive, industrial, telecommunications, and consumer electronics applications.
- The company generates revenue through various business divisions, each providing specialized testing solutions and maintenance services that address distinct market segments and customer requirements.
- Teradyne serves a global customer base of semiconductor manufacturers, original equipment manufacturers, and industrial automation customers who rely on its testing solutions to ensure product quality, reduce manufacturing costs, and accelerate time-to-market for advanced electronic devices.
Teradyne, Inc. is a global leader in automated testing solutions with TTM revenues of $4.5 billion, reflecting strong demand for semiconductor testing equipment amid advancing chip complexity and manufacturing requirements. The company maintains a competitive edge through its comprehensive portfolio of testing platforms, deep industry expertise spanning six decades, and integrated service capabilities that support customers throughout the product lifecycle.
With operations across multiple geographic markets, Teradyne is positioned to benefit from secular trends in semiconductor manufacturing, artificial intelligence infrastructure deployment, and advanced automotive electronics.
What this transaction means for investors
The September 17 sale of Teradyne stock by Director Marilyn Matz at $351.11 per share occurred after a massive 209% one-year return. Even so, the disposition was well below the 52-week high of $487.91, as this was a non-discretionary transaction executed as part of a pre-established Rule 10b5-1 plan, rather than being a market-timed investment decision.
Matz's post-sale direct holdings of 13,840 shares leaves her with a sizable equity stake in Teradyne. This ensures her continued alignment with shareholder interests.
Teradyne's stock has skyrocketed over the past year because the artificial intelligence boom has driven up demand for the company's semiconductor testing equipment. On September 29, it announced Magnum E2, a next-generation test system for evaluating the quality of high-speed memory, a critical component of AI systems. The new technology can help Teradyne grow its business as customer demand for memory is so great, the industry is experiencing shortages.
Robert Izquierdo has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Teradyne. The Motley Fool has a disclosure policy.