X0306 4 2018-03-08 0 0000704532 NANOMETRICS INC NANO 0001410399 Stultz Timothy J C/O NANOMETRICS, INC. 1550 BUCKEYE DRIVE MILPITAS CA 95035 1 0 0 0 Common Stock 2018-03-08 4 S 0 10000 28.45 D 312087 D Common Stock 2018-03-09 4 S 0 10000 29.07 D 302087 D The price in Column 4 is a weighted average sale price. The prices actually received ranged from $28.20 to $28.73. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. The price in Column 4 is a weighted average sale price. The prices actually received ranged from $28.39 to $29.38. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. /s/ Janet Taylor, Attorney-in-Fact 2018-03-12