LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
TERCIK 0000097210

TERADYNE, INC

81 transactions by 13 insiders, from January 5, 2026 to October 1, 2026.

Transactions
8113 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$11.9Mopen market
Net
−$11.9Mnet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Gregory Stephen SmithCEO126/12—$7.7M
Mercedes JohnsonDir109/10—$1.0M
Regan MillsPres93/9—$341K
Shannon John PoulinPres85/8—$581K
Paul J. TufanoDir7———
Marilyn MatzDir76/7—$2.0M
Peter HerweckDir7———
Ryan DriscollGC61/6—$257K
Jean Pierre HathoutPres5———
Ernest E. MaddockDir4———
Andrew Chisholm HenryDir4———
Necip SayinerDir1———
Kralingen Bridget A. vanDir1———

All transactions

81 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Mercedes JohnsonDirOct 1SPLAN167$402.90$67K
Peter HerweckDirSep 25J4$0.00—
Peter HerweckDirSep 24A77$0.00—
Paul J. TufanoDirSep 25J19$0.00—
Paul J. TufanoDirSep 24A141$0.00—
Ernest E. MaddockDirSep 25J2$0.00—
Andrew Chisholm HenryDirSep 24A64$0.00—
Marilyn MatzDirSep 17SPLAN400$351.11$140K
Mercedes JohnsonDirSep 1SPLAN167$341.30$57K
Gregory Stephen SmithCEOAug 17SPLAN4,000$425.00$1.7M
Marilyn MatzDirAug 17SPLAN1,200$425.00$510K
Mercedes JohnsonDirAug 3SPLAN166$358.15$59K
Gregory Stephen SmithCEOJul 15SPLAN4,000$356.31$1.4M
Marilyn MatzDirJul 15SPLAN1,200$356.31$428K
Mercedes JohnsonDirJul 1SPLAN167$460.00$77K
Paul J. TufanoDirJun 25A116$0.00—
Peter HerweckDirJun 25A63$0.00—
Andrew Chisholm HenryDirJun 25A52$0.00—
Paul J. TufanoDirJun 12J19$0.00—
Gregory Stephen SmithCEOJun 15SPLAN4,000$423.03$1.7M
Marilyn MatzDirJun 15SPLAN1,200$423.03$508K
Ernest E. MaddockDirJun 12J2$0.00—
Peter HerweckDirJun 12J4$0.00—
Mercedes JohnsonDirJun 2SPLAN167$369.74$62K
Jean Pierre HathoutPresJun 2F174$392.62$68K
Jean Pierre HathoutPresJun 1F267$369.47$99K
Shannon John PoulinPresDERIVMay 21MPLAN2,843$0.00—?
Shannon John PoulinPresMay 22SPLAN656$355.00$233K
Shannon John PoulinPresMay 21FPLAN1,531$345.98$530K
Shannon John PoulinPresMay 21MPLAN2,843$82.61$235K
Shannon John PoulinPresMay 21SPLAN1,008$345.37$348K
Marilyn MatzDirMay 21SPLAN400$350.00$140K
Gregory Stephen SmithCEODERIVMay 15MPLAN4,597$0.00—?
Gregory Stephen SmithCEOMay 15SPLAN8,597$338.98$2.9M
Gregory Stephen SmithCEOMay 15MPLAN4,597$72.10$331K
Marilyn MatzDirMay 15SPLAN800$338.98$271K
Kralingen Bridget A. vanDirMay 8A668$0.00—
Paul J. TufanoDirMay 8A668$0.00—
Necip SayinerDirMay 8A668$0.00—
Marilyn MatzDirMay 8A668$0.00—
Ernest E. MaddockDirMay 8A668$0.00—
Mercedes JohnsonDirMay 8A668$0.00—
Peter HerweckDirMay 8A668$0.00—
Andrew Chisholm HenryDirMay 8A668$0.00—
Ryan DriscollGCMay 7SPLAN680$377.60$257K
Regan MillsPresApr 8SPLAN16$342.17$5K
Mercedes JohnsonDirApr 6SPLAN625$312.20$195K
Shannon John PoulinPresApr 1F1,162$312.20$363K
Regan MillsPresApr 2SPLAN252$290.88$73K
Regan MillsPresApr 1FPLAN222$312.20$69K
Paul J. TufanoDirMar 26A159$0.00—
Peter HerweckDirMar 26A92$0.00—
Andrew Chisholm HenryDirMar 26A75$0.00—
Paul J. TufanoDirMar 13J25$0.00—
Ernest E. MaddockDirMar 13J2$0.00—
Peter HerweckDirMar 13J5$0.00—
Mercedes JohnsonDirMar 5SPLAN625$299.20$187K
Regan MillsPresFeb 25S788$332.87$262K
Gregory Stephen SmithCEODERIVFeb 4A11,810$0.00—?
Gregory Stephen SmithCEOFeb 4A13,380$0.00—
Shannon John PoulinPresDERIVFeb 4A3,937$0.00—?
Shannon John PoulinPresFeb 4A4,460$0.00—
Regan MillsPresDERIVFeb 4A886$0.00—?
Regan MillsPresFeb 4A1,004$0.00—
Mercedes JohnsonDirFeb 5SPLAN625$266.98$167K
Jean Pierre HathoutPresDERIVFeb 4A886$0.00—?
Jean Pierre HathoutPresFeb 4A1,004$0.00—
Ryan DriscollGCDERIVFeb 4A1,575$0.00—?
Ryan DriscollGCFeb 4A1,784$0.00—
Gregory Stephen SmithCEOFeb 2F6,763$249.53$1.7M
Regan MillsPresFeb 2F345$249.53$86K
Jean Pierre HathoutPresFeb 2F381$249.53$95K
Ryan DriscollGCFeb 2F414$249.53$103K
Gregory Stephen SmithCEOJan 28F486$250.48$122K
Gregory Stephen SmithCEOJan 27F30,610$238.94$7.3M
Gregory Stephen SmithCEOJan 27A59,475$0.00—
Regan MillsPresJan 28F167$250.48$42K
Regan MillsPresJan 27F193$238.94$46K
Ryan DriscollGCJan 28F82$250.48$21K
Ryan DriscollGCJan 27F113$238.94$27K
Mercedes JohnsonDirJan 5SPLAN625$211.85$132K