Teradyne SEC Filings

Teradyne director Mercedes Johnson reported a sale of company shares under a pre-set plan and retains significant ownership. The filing shows $147.9 per share sale of 625 shares on 10/06/2025 executed under a Rule 10b5-1 sales plan. After the sale the reporting person beneficially owns 10,113 shares directly and 1,876 shares indirectly through a trust for which she is trustee and sole beneficiary. The filing identifies the sale as part of a plan adopted on 02/03/2025, and is signed by an attorney-in-fact on 10/08/2025. The transaction is presented as routine insider disposition under a documented trading plan.

Teradyne, Inc. submitted a Form 144 notice for a proposed sale of 625 shares of common stock through Fidelity Brokerage Services LLC with an approximate aggregate market value of $92,437.50, and an intended sale date of 10/06/2025 on NASDAQ. The filing reports total shares outstanding of 159,073,532. The 625 shares were acquired via restricted stock vesting on 05/09/2017 (582 shares) and 05/09/2024 (43 shares); payment was recorded as compensation.

The notice also discloses prior insider sales by Mercedes Johnson of 1,875 shares on 07/30/2025, 625 shares on 08/05/2025, and 625 shares on 09/05/2025, generating gross proceeds of $339,531.25 over the three transactions. The signer certifies no undisclosed material adverse information exists and references rule 10b5-1 procedures if applicable.

Teradyne director Ernest E. Maddock received deferred stock units (DSUs) on 09/29/2025 under his election to receive dividend equivalents as additional DSUs rather than cash. The filing reports an exempt acquisition under Exchange Act Rule 16b-3(d) with 0 price because DSUs are issued in lieu of cash dividends. Following the transaction, Mr. Maddock beneficially owns 9,593 shares of Teradyne common stock. The DSUs are settled one-for-one into common stock generally within ninety days after the director ceases to serve as a non-employee director.

Paul J. Tufano, a director of Teradyne, Inc. (TER), acquired 49 deferred stock units (DSUs) on 09/29/2025 at no cash cost, recorded as an exempt transaction under Exchange Act Rule 16b-3(d). After the acquisition the reporting person beneficially owned 64,569 shares or share-equivalents. The filing states these DSUs represent dividend reinvestment into additional DSUs and are settled one-for-one in common stock generally within ninety days after the director ceases to serve as a non-employee director.

This is a routine director compensation election converting dividend payouts into additional DSUs rather than cash; the transaction increases the director’s long-term alignment with shareholders but does not show any exercised options, sales, or derivative activity in this filing.

Paul J. Tufano, a director of Teradyne, Inc. (TER), reported a non‐derivative acquisition on 09/25/2025. He elected to defer his quarterly cash director compensation into 357 deferred stock units (DSUs) that are converted one‑for‑one into common stock when a director leaves service. The Form 4 shows 64,520 shares beneficially owned by Mr. Tufano following the transaction. The filing was submitted by an attorney‑in‑fact on 09/29/2025.

Peter Herweck, a director of Teradyne, Inc. (TER), deferred his quarterly cash compensation into 206 deferred stock units (DSUs) on 09/25/2025. The filing shows the 206 DSUs were issued at a $0 price per unit (per reporting convention) and that after this transaction the reporting person beneficially owned 15,205 shares of Teradyne common stock. The DSUs are calculated based on the closing price on the issuance date and will be settled one-for-one in common stock generally within ninety days after the director ceases to serve as a non-employee director. The Form 4 was signed by an attorney-in-fact on 09/29/2025.

Insider transaction report: Teradyne, Inc. director and President & CEO Gregory Stephen Smith reported a sale of 554 shares of Teradyne common stock on 09/22/2025 at a price of $126.39 per share. The filing states the shares were sold pursuant to a 10b5-1 trading plan adopted by the reporting person on February 4, 2025. After the reported sale, the Form 4 lists 95,884.995 shares beneficially owned by the reporting person. The Form 4 was signed by an attorney-in-fact on behalf of the reporting person on 09/24/2025.

Form 144 filed for Teradyne, Inc. (TER) reporting a proposed sale of 554 shares of common stock through Fidelity Brokerage Services with an aggregate market value of $70,020.06, and an approximate sale date of 09/22/2025 on NASDAQ. The filing lists 159,073,532 shares outstanding for the issuer.

The 554 shares to be sold were acquired as restricted stock vesting from the issuer on 01/27/2025, 01/28/2025 and 01/29/2025 and were paid as compensation. The filing also discloses three prior sales by Gregory S. Smith during the past three months: 554 shares on 07/30/2025 for $58,574.42, 554 shares on 08/12/2025 for $58,724.00, and 554 shares on 09/12/2025 for $63,710.00.

Teradyne director and President & CEO Gregory Stephen Smith reported a sale of 554 shares of Teradyne common stock on 09/12/2025 at a price of $115 per share. The Form 4 shows 96,438.995 shares remained beneficially owned by Mr. Smith after the reported sale. The filing states the shares were sold under a sales plan adopted February 4, 2025 that was intended to comply with Rule 10b5-1, indicating the transaction followed a prearranged insider trading plan. The Form 4 was signed by an attorney-in-fact on 09/16/2025.