Teradyne

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-01 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: TERADYNE, INC (TER) CIK: 0000097210 --- Reporting Owner --- Name: JOHNSON MERCEDES CIK: 0001225110 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-09-01 | Code: S (Open market sale) Shares: -167 | Price: $341.30 Total Value: $56,997.10 Shares Owned After: 6,364 | Ownership: D (Direct) Footnotes: [F1] The shares were sold pursuant to a sales plan adopted by the Reporting Person on March 4, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] Shares held by The Mercedes Johnson Trust UAD 07/23/04 (the "Trust"), of which the Reporting Person is the trustee and sole beneficiary. --- Footnotes (Complete Index) --- F1: The shares were sold pursuant to a sales plan adopted by the Reporting Person on March 4, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934. F2: Shares held by The Mercedes Johnson Trust UAD 07/23/04 (the "Trust"), of which the Reporting Person is the trustee and sole beneficiary. --- Signature --- /s/ /s/ Ryan E. Driscoll, Attorney-in-Fact (2026-09-02)