X0508 4 2026-02-17 0 0001493594 MACOM Technology Solutions Holdings, Inc. MTSI 0001338249 Kober John C/O MACOM TECHNOLOGY SOLUTIONS HOLDINGS 100 CHELMSFORD STREET LOWELL MA 01851 0 1 0 0 Senior VP and CFO 1 Common Stock 2026-02-17 4 S 0 200 236.42 D 55504 D Common Stock 2026-02-17 4 S 0 300 237.68 D 55204 D Common Stock 2026-02-17 4 S 0 500 238.71 D 54704 D Common Stock 2026-02-17 4 S 0 200 239.83 D 54504 D Common Stock 2026-02-17 4 S 0 2223 241.09 D 52281 D Common Stock 2026-02-17 4 S 0 133 243.38 D 52148 D Common Stock 2026-02-17 4 S 0 767 244.73 D 51381 D Common Stock 2026-02-17 4 S 0 1753 245.55 D 49628 D Common Stock 2026-02-17 4 S 0 600 246.63 D 49028 D Common Stock 2026-02-17 4 S 0 520 247.70 D 48508 D The shares were sold pursuant to a sales plan adopted by the Reporting Person on August 14, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $236.00 to $236.84. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $237.17 to $237.93. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $238.65 to $238.76. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $239.75 to $240.00. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $241.05 to $241.54. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $243.14 to $244.13. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $244.14 to $244.99. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $245.26 to $245.98. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $246.40 to $247.24. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $247.49 to $248.02. The Reporting Person undertakes to provide to the Issuer, any shareholder 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 this footnote. /s/ Ambra R. Roth, Attorney-in-Fact 2026-02-19