Teradyne Director Marilyn Matz Sells $140K Under Rule 10b5-1 Trading Plan

Executive Summary

On September 18, 2026, Teradyne, Inc. ($TER) filed a Form 4 disclosing that Director Marilyn Matz sold 400 shares of common stock on September 17, 2026, at an average execution price of $351.11 per share. The transaction generated total gross proceeds of approximately $140,444.00.

Transaction Details

• Security: Common Stock
• Transaction Type: Open market sale (Code S)
• Shares Sold: 400 shares
• Execution Price: $351.11
• Total Consideration: $140,444.00
• Post-Transaction Holdings: 13,840.675 shares held directly
• Pre-Arranged Plan: The trade was executed under a Rule 10b5-1 trading plan established on February 13, 2026.

Impact and Context

The sale represents roughly 2.8% of the reporting owner's direct holdings prior to the trade, leaving Marilyn Matz with 13,840.675 shares. Because this transaction was modest in volume and executed pursuant to a pre-scheduled Rule 10b5-1 trading plan established over seven months prior, it carries low market significance and does not suggest a discretionary shift in insider sentiment.