X0609 4 2026-08-18 0 0001652535 ICHOR HOLDINGS, LTD. ICHR 0001344017 MacKenzie Iain false C/O ICHOR HOLDINGS, LTD. 3185 LAURELVIEW CT FREMONT CA 94538 1 0 0 0 1 Ordinary Shares, par value $0.0001 2026-08-18 4 S 0 5183 65.19 D 127177 D Ordinary Shares, par value $0.0001 2026-08-18 4 S 0 3150 65.99 D 124027 D Ordinary Shares, par value $0.0001 2026-08-18 4 S 0 1200 66.81 D 122827 D Ordinary Shares, par value $0.0001 2026-08-18 4 S 0 400 68.14 D 122427 D Represents number of shares sold under a Rule 10b5-1 Trading Plan adopted by Mr. MacKenzie on May 19, 2026. The reported price is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $64.64 to $65.58 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes (2), (3), (4), and (5) to this Form 4. The reported price is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $65.64 to $66.57 per share. The reported price is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $66.65 to $67.44 per share. The reported price is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $67.71 to $68.34 per share. /s/ Ryan Barger by Power of Attorney 2026-08-20