AI Semiconductor Testing Leader's Executives Quietly Liquidate Shares

Teradyne, Inc. (NASDAQ: TER) disclosed in early April that certain directors and officers executed small sales or conversions of common stock and equity awards under pre-established Rule 10b5-1 trading plans for compensation and tax-related purposes. On April 6, board member Mercedes Johnson sold 625 shares of Teradyne common stock, netting approximately $195,000 (roughly KRW 260 million). Regan Mills, president of the Product Testing segment, sold shares to cover tax withholding on RSU vesting and through an additional sale, disposing of about $140,000 (around KRW 200 million) in equity, while still retaining holdings valued at several billion KRW. Independent director Peter Herweck opted on March 26 to convert a portion of his quarterly cash retainer into deferred stock units (DSUs), thereby increasing his equity-based compensation; this exchange was handled through Teradyne’s standard compensation-deferral structure rather than via open-market transactions.

Teradyne has recently intensified its push into the AI semiconductor testing market with the launch of Omnyx, a printed-circuit-board testing platform for AI data centers, and by forming a joint venture focused on high-speed data-center interconnect testing. Fueled by surging demand for AI chip testing, Teradyne’s share price has climbed more than 60% year-to-date in 2026, placing it among the top performers in the S&P 500. With the annual shareholder meeting scheduled for May 8, institutional trading remains active: the ARK ETFs managed by Cathie Wood have sold tens of thousands of Teradyne shares to lock in gains.

Founded in 1960 and headquartered in North Reading, Massachusetts, Teradyne supplies automated test equipment for semiconductors, wireless and storage devices, and complex electronic systems, as well as industrial collaborative robots. Its principal customers include global technology leaders such as Samsung Electronics, Intel and Qualcomm.