144 0001247434 XXXXXXXX LIVE 0001493594 MACOM Technology Solutions Holdings, Inc. 001-35451 100 CHELMSFORD STREET LOWELL MA 01851 (978) 656-2500 RIBAR GEOFFREY G Director COMMON Morgan Stanley Smith Barney LLC Executive Services

200 W Civic Center Dr - 4th Floor SANDY UT 84070

6656 809453.70 74300000 02/12/2025 NASDAQ COMMON 02/15/2020 RESTRICTED STOCK ISSUER N 6656 02/15/2020 COMPENSATION Y 02/12/2025 /s/ Geoffrey George Ribar