X0306 4 2018-10-28 false 0001042893 DRIL-QUIP INC DRQ 0001534688 Webster James C. 6401 NORTH ELDRIDGE PARKWAY HOUSTON TX 77041 false true false false VP - Gen Counsel & Secretary Common Stock 2018-10-28 4 A false 10443.00 0.00 A 42267.00 D Common Stock 2018-10-28 4 A false 4792.00 0.00 A 47059.00 D Common Stock 2018-10-29 4 S false 2644.00 41.22 D 44415.00 D Common Stock 2018-10-29 4 S false 2581.00 41.86 D 41834.00 D These shares vested pursuant to the terms of performance unit awards granted on October 28, 2015. Sales to cover tax obligations of vested restricted stock and performance unit awards pursuant to a Rule 10b5-1 plan adopted on June 12, 2017. The price in column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $40.71 to $41.705 inclusive. The reporting person has provided to the issuer and will provide 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 price. The shares were sold in multiple transactions at prices ranging from $41.71 to $42.12 inclusive. The reporting person has provided to the issuer and will provide 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/ James C. Webster 2018-10-30