CEO of U.S. Semiconductor Test Equipment Company Sells Millions in Stock

Gregory Stephen Smith, CEO of U.S. semiconductor test‐equipment maker Teradyne, Inc. (NASDAQ: TER), sold approximately 4,000 shares of company stock on June 15 under a pre-established Rule 10b5-1 trading plan. The sale totaled about $1.7 million (roughly KRW 2.4 billion). Even after this transaction, he retains around 120,000 shares—valued at about $50.9 million (approximately KRW 70 billion)—maintaining a significant ownership stake. On the same day, company executive Marilyn Matz also disposed of a small number of shares at a similar price, though filings show she continues to hold equity worth several million dollars.

Teradyne recently secured a contract with the U.S. Air Force to supply test kits valued at roughly $139.9 million and was newly added to the Nasdaq-100 Index in June, marking notable progress both operationally and in terms of index inclusion.

Founded in 1960 and headquartered in North Reading, Massachusetts, Teradyne is a leading provider of automated test equipment. The company supplies semiconductor and electronic‐component test systems as well as industrial collaborative robots, serving major global semiconductor fabrication plants and electronics manufacturers.