{"version":1,"company":{"symbol":"TER","name":"Teradyne, Inc.","exchange":"Nasdaq","industry":"Instruments For Meas & Testing Of  Electricity & Elec Signals","sic":"3825","division":"Manufacturing","index":"S&P 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plan",625,312.2,195125,6363,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000220/"],["2026-04-02","2026-04-03","Mills Regan","President, Product Test","Sale under a trading plan",252,290.88,73302,11415.3452,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000214/"],["2026-03-13","2026-03-17","Maddock Ernest E","Director","Took pay in stock",2,null,null,null,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000188/"],["2026-03-13","2026-03-17","Tufano Paul J","Director","Took pay in stock",25,null,null,null,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000186/"],["2026-03-13","2026-03-17","Herweck Peter","Director","Took pay in stock",5,null,null,null,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000184/"],["2026-03-05","2026-03-06","Johnson Mercedes","Director","Sale under a trading plan",625,299.2,187000,6988,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000165/"],["2026-02-25","2026-02-27","Mills Regan","President, Product Test","Sale outside a trading plan",788,332.87,262302,11889.3452,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000130/"],["2026-02-05","2026-02-06","Johnson Mercedes","Director","Sale under a trading plan",625,266.98,166862,7613,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000063/"],["2026-01-05","2026-01-06","Johnson Mercedes","Director","Sale under a trading plan",625,211.85,132406,8238,"https://www.sec.gov/Archives/edgar/data/97210/000090445426000003/"],["2025-12-17","2025-12-19","Tufano Paul J","Director","Took pay in stock",36,null,null,null,"https://www.sec.gov/Archives/edgar/data/97210/000090445425000640/"],["2025-12-17","2025-12-19","Herweck Peter","Director","Took pay in stock",7,null,null,null,"https://www.sec.gov/Archives/edgar/data/97210/000090445425000638/"],["2025-12-17","2025-12-19","Maddock Ernest E","Director","Took pay in stock",2,null,null,null,"https://www.sec.gov/Archives/edgar/data/97210/000090445425000636/"],["2025-12-12","2025-12-15","Smith Gregory Stephen","President and CEO","Sale under a trading plan",1108,201.31,223051,93408.995,"https://www.sec.gov/Archives/edgar/data/97210/000090445425000632/"],["2025-12-05","2025-12-08","Johnson Mercedes","Director","Sale under a trading plan",625,200,125000,8863,"https://www.sec.gov/Archives/edgar/data/97210/000090445425000629/"],["2025-11-12","2025-11-14","Smith Gregory Stephen","President and CEO","Sale under a trading plan",1108,180.2,199662,94516.995,"https://www.sec.gov/Archives/edgar/data/97210/000090445425000603/"],["2025-11-05","2025-11-07","Johnson Mercedes","Director","Sale under a trading plan",625,177.05,110656,9488,"https://www.sec.gov/Archives/edgar/data/97210/000090445425000562/"]]},"planned":{"cols":["filed","who","relationship","shares","value","planned","url"],"rows":[["2026-10-21","MATZ 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MERCEDES","Director",625,110656.25,"2025-11-05","https://www.sec.gov/Archives/edgar/data/97210/000195917325006742/"],["2025-11-05","Kumar Ujjwal","Former Officer",3942,729270,"2025-11-05","https://www.sec.gov/Archives/edgar/data/97210/000195917325006758/"],["2025-11-05","Mehta Sanjay","Officer",6331,1139580,"2025-11-05","https://www.sec.gov/Archives/edgar/data/97210/000195917325006745/"],["2025-11-04","Mehta Sanjay","Officer",6330,1124571.05,"2025-11-04","https://www.sec.gov/Archives/edgar/data/97210/000195917325006735/"],["2025-11-03","Kumar Ujjwal","Former Officer",2,57.29,"2025-11-03","https://www.sec.gov/Archives/edgar/data/97210/000195917325006671/"],["2025-10-27","Kumar Ujjwal","Former Officer",2861,429150,"2025-10-27","https://www.sec.gov/Archives/edgar/data/97210/000195917325006561/"]]},"holders":{"cols":["filed","kind","amendment","who","pct","shares","event","url"],"rows":[["2026-07-30","13G",true,"BlackRock, 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