X0609 4 2026-09-15 0 0001897762 Ingram Micro Holding Corp INGM 0001228754 PLATINUM EQUITY, LLC false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0001634372 Platinum Equity Investment Holdings, LLC false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0001756330 Platinum Equity Investment Holdings IC (Cayman), LLC false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0001756331 Platinum Equity InvestCo, L.P. false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0001854932 Platinum Equity Investment Holdings V, LLC false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0001854827 Platinum Equity Partners V, LLC false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0001854950 Platinum Equity Partners V, L.P. false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0001918822 Imola JV Holdings, L.P. false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0002080996 Ingram Holdco, LLC false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0001471783 Gores Tom false C/O PLATINUM EQUITY ADVISORS, LLC 360 NORTH CRESCENT DRIVE BEVERLY HILLS CA 90210 0 0 1 0 0 Common Stock 2026-09-15 4 S 0 1968750 27.188 D 162372569 I See footnote Imola JV Holdings, L.P. is the record holder of 19,626,323 shares of Common Stock and Ingram Holdco, LLC is the record holder of 142,746,246 shares of Common Stock. Tom Gores is the manager of Platinum Equity, LLC, which is the sole member of Platinum Equity Investment Holdings, LLC, which is the sole member of Platinum Equity Investment Holdings IC (Cayman), LLC, which is the general partner of Platinum Equity InvestCo, L.P., which is the sole member of Platinum Equity Investment Holdings V, LLC, which is the sole member of Platinum Equity Partners V, LLC, which is the general partner of Platinum Equity Partners V, L.P., which is the general partner of Imola JV Holdings, L.P., which is the sole member of Ingram Holdco, LLC. By virtue of these relationships, each of these entities and Mr. Gores may be deemed to share beneficial ownership of the securities reported herein. Platinum Equity, LLC, By: /s/ Mary Ann Sigler, Executive Vice President, Chief Financial Officer and Treasurer 2026-09-17 Platinum Equity Investment Holdings, LLC, By: /s/ Mary Ann Sigler, Vice President, Secretary and Treasurer 2026-09-17 Platinum Equity Investment Holdings IC (Cayman), LLC, By: /s/ Mary Ann Sigler, President 2026-09-17 Platinum Equity InvestCo, L.P., By: Platinum Equity Investment Holdings IC (Cayman), LLC, its general partner, By: /s/ Mary Ann Sigler, President 2026-09-17 Platinum Equity Investment Holdings V, LLC, By: /s/ Barbara Velasco, Assistant Secretary 2026-09-17 Platinum Equity Partners V, LLC, By: /s/ Barbara Velasco, Assistant Secretary 2026-09-17 Platinum Equity Partners V, L.P., By: Platinum Equity Partners V, LLC, its general partner, By: /s/ Barbara Velasco, Assistant Secretary 2026-09-17 Imola JV Holdings, L.P., By: Platinum Equity Partners V, L.P., its general partner, By: Platinum Equity Partners V, LLC, its general partner, By: /s/ Barbara Velasco, Assistant Secretary 2026-09-17 Ingram Holdco, LLC, By: /s/ Barbara Velasco, Assistant Secretary 2026-09-17 Tom Gores, By: /s/ Mary Ann Sigler, Attorney-in-Fact 2026-09-17