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Stock Repurchase Program
12 Months Ended
Dec. 31, 2018
Stock Repurchase Program
S.    STOCK REPURCHASE PROGRAM
In January 2015, Teradyne’s Board of Directors authorized a stock repurchase program for up to $500 million of common stock. In 2016, Teradyne repurchased
6.8
 million shares of common stock at an average price of $21.39, for a total cost of $146 million. The cumulative repurchases as of December 31, 2016 totaled 22.5 million shares of common stock for $446 million at an average price per share of $19.87.
In December 2016, Teradyne’s Board of Directors cancelled the January 2015 stock repurchase program and approved a new $500 million share repurchase authorization which commenced on January 1, 2017. The cumulative repurchases as of December 31, 2017 totaled 5.8 million shares of common stock for $200 million at an average price per share of $34.30.
In January 2018, Teradyne’s Board of Directors cancelled the December 2016 stock repurchase program and authorized a new stock repurchase program for up to $1.5 billion of common stock. The cumulative repurchases as of December 31, 2018 totaled 21.6 million shares of common stock for $823.5 million at an average price per share of $38.06. Teradyne intends to repurchase $500 million in 2019.