X0306 4 2021-08-23 0001076930 NOVANTA INC NOVT 0001513778 Buckley Robert C/O NOVANTA INC. 125 MIDDLESEX TURNPIKE BEDFORD MA 01730-1409 1 Chief Financial Officer Common Stock 2021-08-23 4 S 0 3661 146.2384 D 153390 D Common Stock 2021-08-23 4 S 0 2200 147.3555 D 151190 D Common Stock 2021-08-23 4 S 0 1300 148.2114 D 149890 D Common Stock 2021-08-23 4 S 0 1102 149.8018 D 148788 D Common Stock 2021-08-23 4 S 0 100 150.44 D 148688 D Common Stock 2021-08-24 4 S 0 3096 145.0466 D 145592 D Common Stock 2021-08-24 4 S 0 1718 145.8732 D 143874 D Common Stock 2021-08-24 4 S 0 2855 147.0272 D 141019 D Common Stock 2021-08-24 4 S 0 716 147.9052 D 140303 D Common Stock 2021-08-24 4 S 0 140 148.6407 D 140163 D The sales reported in this Form 4 were effected pursuant to a pre-established Rule 10b5-1 trading plan adopted by the reporting person on June 10, 2021. This transaction was executed in multiple trades at prices ranging from $145.86 to $146.84. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $146.87 to $147.81. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $147.97 to $148.71. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $149.27 to $150.16. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $144.49 to $145.42. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $145.51 to $146.50. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $146.52 to $147.41. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $147.53 to $148.31. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. This transaction was executed in multiple trades at prices ranging from $148.54 to $148.82. The price reported above reflects the weighted-average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. Power of Attorney on file. /s/ John Burke, Attorney-in-Fact 2021-08-25