Welcome to our dedicated page for Teradyne SEC filings (Ticker: TER), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Teradyne, Inc. filings document an operating company with common stock traded on Nasdaq under TER and businesses in automated test equipment and advanced robotics. Form 8-K reports cover quarterly operating and financial results across Semiconductor Test, Product Test, and Robotics, along with material events such as annual meeting vote results and executive-transition or compensation arrangements.
Proxy materials describe board elections, advisory compensation votes, auditor ratification, executive compensation, equity-award reporting, and related governance matters. The filings also provide capital-structure details, including Teradyne's common stock class, and formal exhibits tied to earnings releases and other disclosure events.
Teradyne, Inc. director Marilyn Matz sold 1,200 shares of Common Stock at $423.03 per share in an open-market transaction. After the sale, she directly holds 17,440.675 shares. The trade was carried out under a pre-arranged Rule 10b5-1 sales plan adopted on February 13, 2026.
Teradyne, Inc. President and CEO Gregory Stephen Smith reported an open-market sale of 4,000 shares of Common Stock on June 15, 2026 at an average price of $423.03 per share.
After this transaction, he directly holds 120,469.5729 shares. The filing notes the sale was made under a pre-arranged Rule 10b5-1 sales plan adopted on February 12, 2026, indicating it was scheduled in advance rather than timed discretionarily.
Teradyne, Inc. director Ernest E. Maddock reported a small, routine equity compensation adjustment. On this Form 4, he received 2 deferred stock units (DSUs) credited as dividend equivalents on existing DSUs, with no cash changing hands.
The filing notes these DSUs were issued in accordance with his election to receive dividends on DSUs in the form of additional DSUs, in an acquisition exempt under Exchange Act Rule 16b-3(d). After this transaction, Maddock directly holds 10,267 shares or share-settled units equivalent to common stock.
Teradyne, Inc. director Peter Herweck reported a small, routine equity compensation adjustment. On the reported date, he was credited with 4 deferred stock units (DSUs) tied to dividends on existing DSUs, rather than receiving cash.
Following this transaction, Herweck holds 16,138 shares/units of Teradyne common stock in total. The DSUs are designed to be settled one-for-one in common stock, generally within ninety days after he no longer serves as a non-employee director.
Teradyne director Paul J. Tufano reported a small, routine adjustment to his equity compensation. He was credited with 19 deferred stock units (DSUs) as dividend equivalents on existing DSUs, with no cash changing hands. Following this entry, he holds 65,732 shares of common stock directly.
TER notice relating to proposed transactions in common stock by affiliates and recent dispositions.
The filing lists 1,200 shares of Common Stock tied to a Restricted Stock Vesting event dated 05/08/2026. It also records two reported dispositions by Marilyn Matz: 800 shares sold on 05/15/2026 for $271,184.00 and 400 shares sold on 05/21/2026 for $140,000.00. The document shows 156,542,162 shares outstanding as of 06/15/2026.
TER filed a Form 144 reporting proposed resale activity in its common stock following restricted stock vesting. The notice lists restricted stock vesting of 260 shares on 01/27/2026, 3,456 shares on 01/31/2026, and 284 shares on 02/01/2026. The filing also records a sale by Gregory S. Smith of 8,597 shares for $2,914,211.06 on 05/15/2026.
Teradyne Inc. Schedule 13G/A reports that BlackRock, Inc. beneficially owns 15,850,543 shares of Teradyne common stock, representing 10.1% of the class as of 05/31/2026. The filing attributes 14,784,600 shares of sole voting power and 15,850,543 shares of sole dispositive power to BlackRock's Reporting Business Units. The amendment is signed on 06/04/2026.
Teradyne, Inc. executive Jean Pierre Hathout reported routine tax-related share disposals tied to vesting restricted stock units. On June 1 and June 2, 2026, a total of 441 common shares were withheld by the company to cover tax obligations, leaving him with 9,733 directly held shares.
Teradyne, Inc. director Mercedes Johnson reported an open-market sale of 167 shares of common stock at $369.74 per share. The sale occurred on June 2, 2026 and was made pursuant to a Rule 10b5-1 trading plan adopted on March 4, 2026. After this transaction, Johnson directly holds 6,864 Teradyne shares and indirectly holds 1,876 shares through The Mercedes Johnson Trust UAD 07/23/04, where she is trustee and sole beneficiary.