MACOM Technology Solutions Holdings, Inc. — Director's Dealing 2026

Feb 4, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MACOM Technology Solutions Holdings, Inc. (MTSI)
CIK: 0001493594
Period of Report: 2026-02-02

Reporting Person: Hwang Donghyun Thomas (SVP, Global Sales)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-02	Common Stock	S	1715	$217.38	Disposed	42163	Direct
2026-02-02	Common Stock	S	100	$225.01	Disposed	42063	Direct
2026-02-02	Common Stock	S	400	$226.58	Disposed	41663	Direct
2026-02-02	Common Stock	S	800	$227.92	Disposed	40863	Direct
2026-02-02	Common Stock	S	359	$228.70	Disposed	40504	Direct
2026-02-02	Common Stock	S	300	$230.20	Disposed	40204	Direct
2026-02-02	Common Stock	S	600	$231.45	Disposed	39604	Direct
2026-02-02	Common Stock	S	500	$232.68	Disposed	39104	Direct
2026-02-02	Common Stock	S	300	$234.83	Disposed	38804	Direct
2026-02-02	Common Stock	S	200	$235.81	Disposed	38604	Direct

Footnotes

F1: 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.

F2: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $217.33 to $218.11. 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.

F3: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $226.23 to $227.13. 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.

F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $227.35 to $228.19. 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.

F5: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $228.35 to $229.18. 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.

F6: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $229.94 to $230.46. 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.

F7: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $231.16 to $231.93. 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.

F8: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $232.31 to $233.05 . 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.

F9: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $234.61 to $235.21 . 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.

F10: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $235.68 to $235.94 . 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.