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TERADYNE, INC — Insider Transactions

Form 4 filings by directors, officers, and 10%+ shareholders

SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.

Overview All Filings Annual Quarterly Insiders
Insider Title Type Shares Price Value Owns After Date
TUFANO PAUL J Award / Grant 256 64,825 Dec 17, 2025
Herweck Peter Other 7 15,369 Dec 17, 2025
MADDOCK ERNEST E Other 2 9,595 Dec 17, 2025
Smith Gregory Stephen President and CEO Sale 1,108 $201.31 $223,051 93,409 Dec 12, 2025
JOHNSON MERCEDES Sale 625 $200.00 $125,000 8,863 Dec 5, 2025
Smith Gregory Stephen President and CEO Sale 1,108 $180.20 $199,662 94,517 Nov 12, 2025
Smith Gregory Stephen President and CEO Tax Withholding 1,224 $177.05 $216,709 95,625 Nov 5, 2025
JOHNSON MERCEDES Sale 625 $177.05 $110,656 9,488 Nov 5, 2025
Turner Michelle L. Chief Financial Officer Award / Grant 11,144 11,260 Nov 3, 2025
Smith Gregory Stephen President and CEO Sale 1,108 $145.24 $160,926 94,777 Oct 10, 2025
JOHNSON MERCEDES Sale 625 $147.90 $92,438 10,113 Oct 6, 2025
MADDOCK ERNEST E Other 3 9,593 Sep 29, 2025
TUFANO PAUL J Other 49 64,569 Sep 29, 2025
Herweck Peter Other 9 15,214 Sep 29, 2025
TUFANO PAUL J Award / Grant 357 64,520 Sep 25, 2025
Herweck Peter Award / Grant 206 15,205 Sep 25, 2025
Smith Gregory Stephen President and CEO Sale 554 $126.39 $70,020 95,885 Sep 22, 2025
Smith Gregory Stephen President and CEO Sale 554 $115.00 $63,710 96,439 Sep 12, 2025
JOHNSON MERCEDES Sale 625 $120.06 $75,038 10,738 Sep 5, 2025
Smith Gregory Stephen President and CEO Sale 554 $106.00 $58,724 96,993 Aug 12, 2025
JOHNSON MERCEDES Sale 625 $106.00 $66,250 11,363 Aug 5, 2025
Kumar Ujjwal President, Teradyne Robotics Tax Withholding 657 $104.16 $68,433 16,369 Aug 1, 2025
JOHNSON MERCEDES Sale 1,875 $105.73 $198,244 11,988 Jul 30, 2025
Smith Gregory Stephen President and CEO Sale 554 $105.73 $58,574 97,547 Jul 30, 2025
Sayiner Necip Award / Grant 2,132 2,132 Jul 1, 2025
Henry Andrew Chisholm Award / Grant 2,132 2,132 Jul 1, 2025
TUFANO PAUL J Award / Grant 521 64,163 Jun 26, 2025
Herweck Peter Award / Grant 302 14,999 Jun 26, 2025
Herweck Peter Other 15 14,697 Jun 13, 2025
MADDOCK ERNEST E Other 6 9,590 Jun 13, 2025
TUFANO PAUL J Other 79 63,642 Jun 13, 2025
van Kralingen Bridget A Award / Grant 2,971 5,556 May 9, 2025
Herweck Peter Award / Grant 2,971 14,682 May 9, 2025
MADDOCK ERNEST E Award / Grant 2,971 9,584 May 9, 2025
TUFANO PAUL J Award / Grant 2,971 63,563 May 9, 2025
JOHNSON MERCEDES Award / Grant 2,971 15,739 May 9, 2025
MATZ MARILYN Award / Grant 2,971 19,173 May 9, 2025
Herweck Peter Award / Grant 320 11,711 Mar 27, 2025
TUFANO PAUL J Award / Grant 554 60,592 Mar 27, 2025
MADDOCK ERNEST E Other 3 6,613 Mar 14, 2025
Herweck Peter Other 11 11,391 Mar 14, 2025
TUFANO PAUL J Other 73 60,038 Mar 14, 2025
JOHNSON MERCEDES Sale 625 $110.96 $69,350 12,768 Mar 3, 2025
Mehta Sanjay VP and Chief Financial Officer Sale 1,384 $111.49 $154,302 36,576 Feb 4, 2025
Burns Richard John President, Semiconductor Test Sale 445 $111.49 $49,613 25,191 Feb 4, 2025
Driscoll Ryan VP, General Counsel, Secretary Sale 216 $111.49 $24,082 7,007 Feb 4, 2025
Mehta Sanjay VP and Chief Financial Officer Award / Grant 8,810 39,256 Feb 3, 2025
Lukez John President, LitePoint Corp. Award / Grant 1,296 4,279 Feb 3, 2025
JOHNSON MERCEDES Sale 625 $112.58 $70,363 13,393 Feb 3, 2025
Wood John Francis President, System Test Group Award / Grant 4,319 14,328 Feb 3, 2025