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Teradyne, Inc

TER
Exchange
Nasdaq
Industry
Instruments For Meas & Testing of Electricity & Elec Signals
SEC CIK
0000097210

In the last 90 days, Teradyne, Inc insiders filed 0 open-market purchases and 10 sales; 1,428 institutions reported holding it in 13F filings for Q2 2026, worth $73.3B in total; 3 superinvestors hold it, including Lone Pine Capital and ARK Invest.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Teradyne, Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
10 filings
3 insiders, $6.02M in total
Insiders trading
3
Net value
−$6.02M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Teradyne, Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Teradyne, Inc
NameTitleLast reported holdingLast filingFilings, past year
Matz MarilynDirector13,841Sep 18, 20268
Smith Gregory StephenPresident and CEO108,495Sep 16, 202612
Johnson MercedesDirector6,364Sep 2, 202612
Tufano Paul JDirector65,848Jun 29, 20268
Herweck PeterDirector16,201Jun 29, 20268
Henry Andrew ChisholmDirector2,927Jun 29, 20263
Maddock Ernest EDirector10,267Jun 16, 20265
Hathout Jean PierrePresident, Teradyne Robotics9,733Jun 3, 20263
Poulin Shannon JohnPresident, Semiconductor Test15,722May 26, 20263
Sayiner NecipDirector2,800May 12, 20261
van Kralingen Bridget ADirector6,224May 12, 20261
Driscoll RyanVP, General Counsel, Secretary7,665May 11, 20264
Mills ReganPresident, Product Test11,399Apr 9, 20266
Turner Michelle L.Chief Financial Officer11,260Nov 5, 20251
Kumar UjjwalPresident, Teradyne Robotics16,369Aug 5, 20250
Burns Richard JohnPresident, Semiconductor Test25,191Feb 5, 20250
Mehta SanjayVP and Chief Financial Officer36,576Feb 5, 20250
Wood John FrancisPresident, System Test Group14,137Feb 4, 20250
Lukez JohnPresident, LitePoint Corp.4,185Feb 4, 20250
Tamer FordDirector7,235May 13, 20240
Guertin Timothy EDirector62,729Mar 19, 20240
Gray Charles JeffreyVP, General Counsel, Secretary24,643Jan 31, 20240
Robbins BradPresident, LitePoint Corp.52,772Jan 31, 20240
Gillis Edwin JDirector43,921Mar 21, 20230
Jagiela Mark ECEO208,600Jan 31, 20230
Vahey Walter G.Exec. VP, Corp. Development41,570Feb 1, 20220
Bradley Michael ADirector24,815Dec 17, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 18, 2026 (view filing)11:38 AM ETSep 171 dayMatz MarilynDirectorSSale−400$351.11−$140.4K−2.8%13.8K after10b5-1
Sep 16, 2026 (view filing)12:23 PM ETSep 151 daySmith Gregory StephenPresident and CEOSSale−4.00K$337.83−$1.35M−3.6%108.5K after10b5-1
Sep 16, 2026 (view filing)12:19 PM ETSep 151 dayMatz MarilynDirectorSSale−800$337.83−$270.3K−5.3%14.2K after10b5-1
Sep 2, 2026 (view filing)2:28 PM ETSep 11 dayJohnson MercedesDirectorSSale−167$341.30−$57.0K−2.6%6.36K after10b5-1
Aug 18, 2026 (view filing)11:14 AM ETAug 171 daySmith Gregory StephenPresident and CEOSSale−4.00K$425.00−$1.70M−3.4%112.5K after10b5-1
Aug 18, 2026 (view filing)11:09 AM ETAug 171 dayMatz MarilynDirectorSSale−1.20K$425.00−$510.0K−7.4%15.0K after10b5-1
Aug 4, 2026 (view filing)11:10 AM ETAug 31 dayJohnson MercedesDirectorSSale−166$358.15−$59.5K−2.5%6.53K after10b5-1
Jul 16, 2026 (view filing)1:22 PM ETJul 151 daySmith Gregory StephenPresident and CEOSSale−4.00K$356.31−$1.43M−3.3%116.5K after10b5-1
Jul 16, 2026 (view filing)1:17 PM ETJul 151 dayMatz MarilynDirectorSSale−1.20K$356.31−$427.6K−6.9%16.2K after10b5-1
Jul 2, 2026 (view filing)1:11 PM ETJul 11 dayJohnson MercedesDirectorSSale−167$460.00−$76.8K−2.4%6.70K after10b5-1
Jun 16, 2026 (view filing)Jun 151 dayMatz MarilynDirectorSSale−1.20K$423.03−$507.6K−6.4%17.4K after10b5-1
Jun 16, 2026 (view filing)Jun 151 daySmith Gregory StephenPresident and CEOSSale−4.00K$423.03−$1.69M−3.2%120.5K after10b5-1
Jun 3, 2026 (view filing)Jun 21 dayJohnson MercedesDirectorSSale−167$369.74−$61.7K−2.4%6.86K after10b5-1
May 26, 2026 (view filing)May 21-225 daysPoulin Shannon JohnPresident, Semiconductor TestSSale−1.66K$349.17−$581.0K−9.6%15.7K after2 lots10b5-1
May 26, 2026 (view filing)May 215 daysMatz MarilynDirectorSSale−400$350.00−$140.0K−2.1%18.6K after10b5-1
May 19, 2026 (view filing)May 154 daysSmith Gregory StephenPresident and CEOSSale−8.60K$338.98−$2.91M−6.5%124.5K after10b5-1
May 19, 2026 (view filing)May 154 daysMatz MarilynDirectorSSale−800$338.98−$271.2K−4.0%19.0K after10b5-1
May 11, 2026 (view filing)May 74 daysDriscoll RyanVP, General Counsel, SecretarySSale−680$377.60−$256.8K−8.1%7.67K after10b5-1
Apr 9, 2026 (view filing)Apr 81 dayMills ReganPresident, Product TestSSale−16$342.17−$5.47K−0.1%11.4K after10b5-1
Apr 7, 2026 (view filing)Apr 61 dayJohnson MercedesDirectorSSale−625$312.20−$195.1K−8.9%6.36K after10b5-1
Apr 3, 2026 (view filing)Apr 21 dayMills ReganPresident, Product TestSSale−252$290.88−$73.3K−2.2%11.4K after10b5-1
Mar 6, 2026 (view filing)Mar 51 dayJohnson MercedesDirectorSSale−625$299.20−$187.0K−8.2%6.99K after10b5-1
Feb 27, 2026 (view filing)Feb 252 daysMills ReganPresident, Product TestSSale−788$332.87−$262.3K−6.2%11.9K after
Feb 6, 2026 (view filing)Feb 51 dayJohnson MercedesDirectorSSale−625$266.98−$166.9K−7.6%7.61K after10b5-1
Jan 6, 2026 (view filing)Jan 51 dayJohnson MercedesDirectorSSale−625$211.85−$132.4K−7.1%8.24K after10b5-1
Dec 15, 2025 (view filing)Dec 123 daysSmith Gregory StephenPresident and CEOSSale−1.11K$201.31−$223.1K−1.2%93.4K after10b5-1
Dec 8, 2025 (view filing)Dec 53 daysJohnson MercedesDirectorSSale−625$200.00−$125.0K−6.6%8.86K after10b5-1
Nov 14, 2025 (view filing)Nov 122 daysSmith Gregory StephenPresident and CEOSSale−1.11K$180.20−$199.7K−1.2%94.5K after10b5-1
Nov 7, 2025 (view filing)Nov 52 daysJohnson MercedesDirectorSSale−625$177.05−$110.7K−6.2%9.49K after10b5-1
Oct 15, 2025 (view filing)Oct 105 daysSmith Gregory StephenPresident and CEOSSale−1.11K$145.24−$160.9K−1.2%94.8K after10b5-1
Oct 8, 2025 (view filing)Oct 62 daysJohnson MercedesDirectorSSale−625$147.90−$92.4K−5.8%10.1K after10b5-1
Sep 24, 2025 (view filing)Sep 222 daysSmith Gregory StephenPresident and CEOSSale−554$126.39−$70.0K−0.6%95.9K after10b5-1
Sep 16, 2025 (view filing)Sep 124 daysSmith Gregory StephenPresident and CEOSSale−554$115.00−$63.7K−0.6%96.4K after10b5-1
Sep 9, 2025 (view filing)Sep 54 daysJohnson MercedesDirectorSSale−625$120.06−$75.0K−5.5%10.7K after10b5-1
Aug 14, 2025 (view filing)Aug 122 daysSmith Gregory StephenPresident and CEOSSale−554$106.00−$58.7K−0.6%97.0K after10b5-1
Aug 7, 2025 (view filing)Aug 52 daysJohnson MercedesDirectorSSale−625$106.00−$66.3K−5.2%11.4K after10b5-1
Aug 1, 2025 (view filing)Jul 302 daysJohnson MercedesDirectorSSale−1.88K$105.73−$198.2K−13.5%12.0K after10b5-1
Aug 1, 2025 (view filing)Jul 302 daysSmith Gregory StephenPresident and CEOSSale−554$105.73−$58.6K−0.6%97.5K after10b5-1
Mar 5, 2025 (view filing)Mar 32 daysJohnson MercedesDirectorSSale−625$110.96−$69.3K−4.7%12.8K after10b5-1
Feb 5, 2025 (view filing)Feb 41 dayMehta SanjayVP and Chief Financial OfficerSSale−1.38K$111.49−$154.3K−3.6%36.6K after10b5-1
Feb 5, 2025 (view filing)Feb 41 dayBurns Richard JohnPresident, Semiconductor TestSSale−445$111.49−$49.6K−1.7%25.2K after10b5-1
Feb 5, 2025 (view filing)Feb 41 dayDriscoll RyanVP, General Counsel, SecretarySSale−216$111.49−$24.1K−3.0%7.01K after10b5-1
Feb 4, 2025 (view filing)Feb 31 dayJohnson MercedesDirectorSSale−625$112.58−$70.4K−4.5%13.4K after10b5-1
Jan 31, 2025 (view filing)Jan 301 dayMehta SanjayVP and Chief Financial OfficerSSale−614$102.00−$62.6K−2.0%30.4K after10b5-1
Jan 31, 2025 (view filing)Jan 301 dayDriscoll RyanVP, General Counsel, SecretarySSale−437$102.00−$44.6K−9.2%4.31K after10b5-1
Jan 30, 2025 (view filing)Jan 291 dayMehta SanjayVP and Chief Financial OfficerSSale−5.34K$122.90−$656.0K−14.7%31.1K after10b5-1
Jan 30, 2025 (view filing)Jan 291 dayBurns Richard JohnPresident, Semiconductor TestSSale−1.48K$122.90−$181.5K−6.5%21.2K after10b5-1
Jan 30, 2025 (view filing)Jan 291 dayDriscoll RyanVP, General Counsel, SecretarySSale−76$122.90−$9.34K−1.6%4.75K after10b5-1
Jan 30, 2025 (view filing)Jan 282 daysBurns Richard JohnPresident, Semiconductor TestSSale−407$120.51−$49.0K−1.9%20.6K afterAmended10b5-1
Jan 29, 2025 (view filing)Jan 281 dayDriscoll RyanVP, General Counsel, SecretarySSale−107$120.51−$12.9K−2.1%4.98K after10b5-1