TER - SEC Form 4 insider transactions

President, Teradyne Robotics Hathout Jean Pierre covered exercise/tax liability with 441 shares, decreasing direct ownership by 4% to 9,733 units (SEC Form 4) (tax withholding)

Director Johnson Mercedes sold $61,747 worth of shares (167 units at $369.74) as part of a pre-agreed trading plan, decreasing direct ownership by 2% to 6,864 units (SEC Form 4)

President, Semiconductor Test Poulin Shannon John exercised 2,843 shares at a strike of $82.61, covered exercise/tax liability with 1,531 shares and sold $581,013 worth of shares (1,664 units at $349.17) as part of a pre-agreed trading plan, decreasing direct ownership by 2% to 15,722 units (SEC Form 4) (tax liability)

Director Matz Marilyn sold $140,000 worth of shares (400 units at $350.00) as part of a pre-agreed trading plan, decreasing direct ownership by 2% to 18,641 units (SEC Form 4)

President and CEO Smith Gregory Stephen exercised 4,597 shares at a strike of $72.10 and sold $2,914,211 worth of shares (8,597 units at $338.98) as part of a pre-agreed trading plan, decreasing direct ownership by 3% to 124,470 units (SEC Form 4)

Director Matz Marilyn sold $271,184 worth of shares (800 units at $338.98) as part of a pre-agreed trading plan, decreasing direct ownership by 4% to 19,041 units (SEC Form 4)

Director Herweck Peter was granted 668 shares, increasing direct ownership by 4% to 16,134 units (SEC Form 4)

Director Johnson Mercedes was granted 668 shares, increasing direct ownership by 10% to 7,031 units (SEC Form 4)

Director Matz Marilyn was granted 668 shares, increasing direct ownership by 3% to 19,841 units (SEC Form 4)

Director Van Kralingen Bridget A was granted 668 shares, increasing direct ownership by 12% to 6,224 units (SEC Form 4)

Director Tufano Paul J was granted 668 shares, increasing direct ownership by 1% to 65,713 units (SEC Form 4)

Director Sayiner Necip was granted 668 shares, increasing direct ownership by 31% to 2,800 units (SEC Form 4)

Director Maddock Ernest E was granted 668 shares, increasing direct ownership by 7% to 10,265 units (SEC Form 4)

Director Henry Andrew Chisholm was granted 668 shares, increasing direct ownership by 30% to 2,875 units (SEC Form 4)

VP, General Counsel, Secretary Driscoll Ryan sold $256,768 worth of shares (680 units at $377.60) as part of a pre-agreed trading plan, decreasing direct ownership by 8% to 7,665 units (SEC Form 4)

SEC Form 4 filed by Mills Regan

SEC Form 4 filed by Johnson Mercedes

SEC Form 4 filed by Poulin Shannon John

SEC Form 4 filed by Mills Regan

SEC Form 4 filed by Herweck Peter

SEC Form 4 filed by Tufano Paul J

SEC Form 4 filed by Henry Andrew Chisholm

Director Maddock Ernest E acquired 2 shares, increasing direct ownership by 0.02% to 9,597 units (SEC Form 4)

Director Tufano Paul J acquired 25 shares, increasing direct ownership by 0.04% to 64,886 units (SEC Form 4)

Director Herweck Peter acquired 5 shares, increasing direct ownership by 0.03% to 15,374 units (SEC Form 4)

Director Johnson Mercedes sold $187,000 worth of shares (625 units at $299.20), decreasing direct ownership by 8% to 6,988 units (SEC Form 4)

President, Product Test Mills Regan sold $262,302 worth of shares (788 units at $332.87), decreasing direct ownership by 6% to 11,889 units (SEC Form 4)

President and CEO Smith Gregory Stephen was granted 13,380 shares, increasing direct ownership by 12% to 128,470 units (SEC Form 4)

President, Semiconductor Test Poulin Shannon John was granted 4,460 shares, increasing direct ownership by 35% to 17,236 units (SEC Form 4)

VP, General Counsel, Secretary Driscoll Ryan was granted 1,784 shares, increasing direct ownership by 27% to 8,345 units (SEC Form 4)

President, Product Test Mills Regan was granted 1,004 shares, increasing direct ownership by 9% to 12,677 units (SEC Form 4)

President, Teradyne Robotics Hathout Jean Pierre was granted 1,004 shares, increasing direct ownership by 11% to 10,174 units (SEC Form 4)

Director Johnson Mercedes sold $166,862 worth of shares (625 units at $266.98), decreasing direct ownership by 8% to 7,613 units (SEC Form 4)

President, Teradyne Robotics Hathout Jean Pierre covered exercise/tax liability with 381 shares, decreasing direct ownership by 4% to 9,170 units (SEC Form 4)

President, Product Test Mills Regan covered exercise/tax liability with 345 shares, decreasing direct ownership by 3% to 11,673 units (SEC Form 4)

President and CEO Smith Gregory Stephen covered exercise/tax liability with 6,763 shares, decreasing direct ownership by 6% to 115,090 units (SEC Form 4)

VP, General Counsel, Secretary Driscoll Ryan covered exercise/tax liability with 414 shares, decreasing direct ownership by 6% to 6,561 units (SEC Form 4)

President and CEO Smith Gregory Stephen covered exercise/tax liability with 31,096 shares and was granted 59,475 shares, increasing direct ownership by 30% to 121,853 units (SEC Form 4)

President, Product Test Mills Regan covered exercise/tax liability with 360 shares, decreasing direct ownership by 3% to 12,018 units (SEC Form 4)

VP, General Counsel, Secretary Driscoll Ryan covered exercise/tax liability with 195 shares, decreasing direct ownership by 3% to 6,975 units (SEC Form 4)

Director Johnson Mercedes sold $132,406 worth of shares (625 units at $211.85), decreasing direct ownership by 7% to 8,238 units (SEC Form 4)

Director Tufano Paul J was granted 256 shares and acquired 36 shares, increasing direct ownership by 0.45% to 64,861 units (SEC Form 4)

Director Herweck Peter was granted 148 shares and acquired 7 shares, increasing direct ownership by 1% to 15,369 units (SEC Form 4)

Director Maddock Ernest E acquired 2 shares, increasing direct ownership by 0.02% to 9,595 units (SEC Form 4)

President and CEO Smith Gregory Stephen sold $223,051 worth of shares (1,108 units at $201.31), decreasing direct ownership by 1% to 93,409 units (SEC Form 4)

Director Johnson Mercedes sold $125,000 worth of shares (625 units at $200.00), decreasing direct ownership by 7% to 8,863 units (SEC Form 4)

President and CEO Smith Gregory Stephen sold $199,662 worth of shares (1,108 units at $180.20), decreasing direct ownership by 1% to 94,517 units (SEC Form 4)

President and CEO Smith Gregory Stephen exercised 2,072 shares at a strike of $36.75 and covered exercise/tax liability with 1,224 shares, increasing direct ownership by 0.89% to 95,625 units (SEC Form 4)

Director Johnson Mercedes sold $110,656 worth of shares (625 units at $177.05), decreasing direct ownership by 6% to 9,488 units (SEC Form 4)

Chief Financial Officer Turner Michelle L. was granted 11,144 shares, increasing direct ownership by 9,607% to 11,260 units (SEC Form 4)

President and CEO Smith Gregory Stephen sold $160,926 worth of shares (1,108 units at $145.24), decreasing direct ownership by 1% to 94,777 units (SEC Form 4)

Director Johnson Mercedes sold $92,438 worth of shares (625 units at $147.90), decreasing direct ownership by 6% to 10,113 units (SEC Form 4)

Director Maddock Ernest E acquired 3 shares, increasing direct ownership by 0.03% to 9,593 units (SEC Form 4)

Director Tufano Paul J acquired 49 shares, increasing direct ownership by 0.08% to 64,569 units (SEC Form 4)

Director Herweck Peter acquired 9 shares, increasing direct ownership by 0.06% to 15,214 units (SEC Form 4)

Director Tufano Paul J was granted 357 shares, increasing direct ownership by 0.56% to 64,520 units (SEC Form 4)

Director Herweck Peter was granted 206 shares, increasing direct ownership by 1% to 15,205 units (SEC Form 4)

President and CEO Smith Gregory Stephen sold $70,020 worth of shares (554 units at $126.39), decreasing direct ownership by 0.57% to 95,885 units (SEC Form 4)

President and CEO Smith Gregory Stephen sold $63,710 worth of shares (554 units at $115.00), decreasing direct ownership by 0.57% to 96,439 units (SEC Form 4)

Director Johnson Mercedes sold $75,038 worth of shares (625 units at $120.06), decreasing direct ownership by 6% to 10,738 units (SEC Form 4)