144 0001252243 XXXXXXXX LIVE 0001493594 MACOM Technology Solutions Holdings, Inc. 001-35451 100 CHELMSFORD STREET LOWELL MA 01851 (978)-656-2500 OCAMPO SUSAN Owner Common The Charles Schwab Corporation

3000 Schwab Way Westlake TX 76262

190787 78258001 76295774 05/26/2026 NASDAQ Common 11/21/2023 Founder Shares Issuer N 190787 11/21/2023 N/A N Susan Ocampo

Box #88439 Honolulu HI 96830

Common 02/25/2026 261763 66600315 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 03/02/2026 200000 50539095 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 03/25/2026 100000 24505253.65 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/08/2026 200000 49044227.56 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/10/2026 15221 3928692.31 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/13/2026 100000 26190830.39 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/14/2026 61898 16356261.77 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/15/2026 76218 19893766.89 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/16/2026 100000 26193350 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/17/2026 87888 23770803.7 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/21/2026 66541 19044326.54 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 04/24/2026 100000 29019401.25 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 05/06/2026 176663 54528345.41 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 05/07/2026 400000 132655087.07 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 05/08/2026 24530 8831046.24 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 05/11/2026 200000 72189891.03 Susan Ocampo

Box #88439 Honolulu HI 96830

Common 05/13/2026 100000 38015187.67 Filing encompasses 1 Trust account in which Susan Ocampo is the TTEE. 4 WK average volume April 27th Wk 1: 4,722,896 May 4th Wk 2: 9,036,327 May 11th Wk 3: 8,444,296 May 18th Wk 4: 7,095,030 Total = 29,298,549 / 4 = 7,324,637 shares per week average 05/26/2026 /s/ Susan Ocampo