0001209191-21-052792 4 1 20210818 20210820 20210820 MacKenzie Iain 0001344017 4 34 001-37961 211194436 C/O SMART GLOBAL HOLDINGS, INC. 39870 EUREKA DRIVE NEWARK CA 94560 ICHOR HOLDINGS, LTD. 0001652535 3674 000000000 E9 1227 3185 LAURELVIEW CT. FREMONT CA 94538 510-897-5200 3185 LAURELVIEW CT. FREMONT CA 94538 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2021-08-18 0 0001652535 ICHOR HOLDINGS, LTD. ICHR 0001344017 MacKenzie Iain C/O ICHOR HOLDINGS, LTD. 3185 LAURELVIEW COURT FREMONT CA 94538 1 0 0 0 Ordinary Shares, par value $0.0001 2021-08-18 4 M 0 2500 9.42 A 17864 D Ordinary Shares, par value $0.0001 2021-08-18 4 S 0 2500 40.14 D 15364 D Option (right to buy) 9.42 2021-08-18 4 M 0 2500 0.00 D 2022-10-09 Ordinary Shares, par value $0.0001 2500 7500 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan. The option vests as follows: 25% of the option vests on October 9, 2016 and the remainder vests ratably on a quarterly basis over a three year period thereafter. /s/ Chase Rosson by Power of Attorney 2021-08-20