BlackRock, Inc. Reduces Stake in Teradyne Inc. to 10.1% Ownership

BlackRock, Inc. filed a Schedule 13G/A on June 4, 2026, disclosing a 10.1% stake in Teradyne Inc. (TER). As of the event date of May 31, 2026, BlackRock beneficially owns 15,850,543 shares of common stock. This represents a decrease from its previously reported position of 16,305,187 shares, reflecting a reduction of approximately 454,644 shares. Despite the decrease in share count, the filing indicates a significant ownership percentage of 10.1%. BlackRock reports sole voting power over 14,784,600 shares and sole dispositive power over the full 15,850,543 shares. The filing was made under Rule 13d-1(b), certifying that the shares were acquired in the ordinary course of business and not for the purpose of influencing or changing the control of the issuer. Various BlackRock subsidiaries and business units are involved in the holding, with no single person's interest exceeding 5% of the total outstanding common shares. The filing marks the 14th amendment to BlackRock's beneficial ownership disclosure for Teradyne.