MTSI · MACOM Technology Solutions Holdings, Inc.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on May 29, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

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 $325.99 to $326.97. 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 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 $323.77 to $324.19. 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 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 $320.48 to $321.20. 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 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 $328.33 to $329.16. 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 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 $330.51 to $330.82. 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 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 $324.97 to $325.73. 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 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 $329.48 to $330.03. 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 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 $327.33 to $328.19. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $388.49 to $388.89. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $382.80 to $383.04. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $374.86 to $375.82. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $381.55 to $382.47. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $386.18 to $387.09. 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.pon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $387.20 to $387.30. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $389.57 to $389.86. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $380.93 to $381.28. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $357.82 to $358.66. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $359.86 to $360.75. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $368.81 to $369.68. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $375.08 to $375.12. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $358.82 to $359.75. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $366.21 to $366.58. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $361.31 to $362.24. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $391.00 to $391.18. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $373.80 to $374.67. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $382.54 to $383.13. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $378.83 to $378.88. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $388.01 to $388.87. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $362.32 to $363.31. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $364.37 to $365.34. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $389.39 to $389.44. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $363.34 to $364.32. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on February 27, 2026 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 $367.58 to $368.53. 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 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 $352.44 to $353.23. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $356.39 to $357.34. 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 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 $362.70 to $363.36. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.

The shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 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 $352.78 to $353.68. 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 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 $361.26 to $361.80. 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 shares were sold pursuant to a sales plan adopted by the Reporting Person on August 11, 2025 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.