SCHEDULE: BlackRock Discloses 10.1% Stake in Teradyne

BlackRock, Inc. has filed an amended Schedule 13G, reporting beneficial ownership of 10.1% of Teradyne Inc.'s common stock as of May 31, 2026.

Summary

• BlackRock, Inc. has updated its Schedule 13G filing, indicating it beneficially owns 15,850,543 shares of Teradyne Inc. common stock.
• This holding represents 10.1% of the class of securities.
• The filing is an amendment (Amendment No. 14) and the event date requiring the filing is May 31, 2026.
• BlackRock, Inc. has sole voting power over 14,784,600 shares and sole dispositive power over 15,850,543 shares.
• The filing specifies that it reflects securities beneficially owned by certain reporting business units of BlackRock, Inc. and its subsidiaries and affiliates, as per SEC Release No. 34-39538.
• The principal business office of BlackRock, Inc. is located at 50 Hudson Yards, New York, NY 10001.
• Teradyne Inc.'s principal executive offices are located at 600 Riverpark Drive, North Reading, MA 01864.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a neutral to slightly positive filing. While it indicates significant institutional interest from BlackRock, it is a routine disclosure of ownership and does not contain new operational or financial performance data for Teradyne.

Positives

• BlackRock's significant stake indicates confidence in Teradyne's long-term prospects, potentially attracting further institutional investment.
• The clear disclosure of ownership percentage provides transparency for investors regarding major shareholders.

Negatives

• The filing does not contain any negative financial or operational information about Teradyne Inc. itself, as it is a disclosure of ownership by a third party.

Risks

• While not a direct risk to Teradyne, a large institutional holder like BlackRock could potentially influence corporate strategy or governance decisions, which may or may not align with other shareholders' interests.
• The filing does not explicitly mention any risks associated with Teradyne Inc.

Future Outlook

This filing is a disclosure of current ownership and does not contain forward-looking statements or guidance from Teradyne Inc. regarding its future performance.

Management Comments

• In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
• By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under 240.14a-11.

Industry Context

StockSavvy.ai notes that significant stake disclosures by major asset managers like BlackRock often signal a belief in the target company's growth trajectory or strategic positioning within its industry. For Teradyne, a leader in semiconductor testing equipment, this could reflect positive industry trends in advanced chip manufacturing and testing demands.

Stakeholder Impact

• Shareholders: Increased visibility of a major institutional investor, potentially influencing market perception and share price.
• Management: May face increased scrutiny or engagement from BlackRock regarding corporate strategy and governance.
• Employees: No direct impact mentioned in the filing.
• Customers: No direct impact mentioned in the filing.
• Suppliers: No direct impact mentioned in the filing.
• Creditors: No direct impact mentioned in the filing.

Next Steps

• BlackRock will continue to monitor its investment in Teradyne Inc. and may adjust its holdings based on market conditions and company performance.
• Teradyne Inc. will continue its operations in the semiconductor testing equipment market.

Key Dates

Keywords

Teradyne Inc, BlackRock, Schedule 13G, Beneficial Ownership, Common Stock, SEC Filing, Institutional Investor, Amendment, Securities Exchange Act