X0306 4 2018-05-30 0 0000021535 COHU INC COHU 0001701396 von Fellenberg IAN 12367 CROSTHWAITE CIRCLE POWAY CA 92064 0 1 0 0 VP & GM Analog Test Handlers Common Stock 2018-05-30 4 M 0 12500 10.42 A 87054 D Common Stock 2018-05-30 4 S 0 12500 24.51 D 74554 D Common Stock 2018-05-30 4 S 0 9519 24.51 D 65035 D Employee Stock Option (Right to Buy) 10.42 2018-05-30 4 M 0 12500 0.00 A 2014-09-11 2023-09-11 Common Stock 12500 0 D The shares with respect to this transaction were sold in multiple trades at prices ranging from $24.50 to $24.51; the price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Number of shares includes 47,660 Restricted Stock Units (excluding the impact of shares that will be withheld to cover tax obligations) previously reported that in the future will be converted on a one-for-one basis into shares of Cohu, Inc. Common Stock immediately upon the vesting dates (assuming continued employment and achievement of specified performance goals). The options vested in four equal annual installments beginning on September 11, 2014. Jeffrey D. Jones, by Power of Attorney 2018-06-01