X0609 4 2026-11-05 0 0001493594 MACOM Technology Solutions Holdings, Inc. MTSI 0001338249 Kober John false C/O MACOM TECHNOLOGY SOLUTIONS HOLDINGS 100 CHELMSFORD STREET LOWELL MA 01851 0 1 0 0 Senior VP and CFO 1 Common Stock 2026-11-05 4 A 0 43793 0 A 77789 D Common Stock 2026-11-05 4 F 0 19424 190.35 D 58365 D Common Stock 2026-11-06 4 F 0 776 210.98 D 57589 D Common Stock 2026-11-06 4 S 0 199 196.23 D 57390 D Common Stock 2026-11-06 4 S 0 321 197.13 D 57069 D Common Stock 2026-11-06 4 S 0 480 198.39 D 56589 D Common Stock 2026-11-06 4 S 0 680 199.34 D 55909 D Common Stock 2026-11-06 4 S 0 560 200.57 D 55349 D Common Stock 2026-11-06 4 S 0 1200 201.38 D 54149 D Common Stock 2026-11-06 4 S 0 760 202.43 D 53389 D Common Stock 2026-11-06 4 S 0 880 203.47 D 52509 D Common Stock 2026-11-06 4 S 0 880 204.44 D 51629 D Common Stock 2026-11-06 4 S 0 1576 205.60 D 50053 D Common Stock 2026-11-06 4 S 0 1946 206.46 D 48107 D Common Stock 2026-11-06 4 S 0 1798 207.45 D 46309 D Common Stock 2026-11-06 4 S 0 880 208.88 D 45429 D Common Stock 2026-11-06 4 S 0 1920 209.97 D 43509 D Common Stock 2026-11-06 4 S 0 6956 210.89 D 36553 D Common Stock 2026-11-09 4 S 0 973 212.43 D 35580 D Represents performance-based restricted stock units ("PRSUs") previously granted to the Reporting Person under an equity compensation plan maintained by the Issuer, which vested and settled in shares of Common Stock on November 5, 2026. Shares withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settling of PRSUs on November 5, 2026. Shares withheld by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units on November 8, 2026. 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 $195.90 to $196.51. 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 $196.91 to $197.47. 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 price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $197.95 to $198.77. 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 $198.96 to $199.74. 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 $199.96 to $200.94. 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 $200.96 to $201.91. 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 $201.96 to $202.86. 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 price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $203.01 to $203.97. 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 price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $204.02 to $204.98. 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 $205.04 to $206.03. 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 price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $206.04 to $207.00. 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 $207.04 to $208.01. 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 $208.37 to $209.36. 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 price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $209.39 to $210.37. 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 $210.40 to $211.30. 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. /s/ Ambra R. Roth, Attorney-in-Fact 2026-11-09