MACOM Technology Solutions Holdings, Inc. — Director's Dealing 2025

Sep 13, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MACOM Technology Solutions Holdings, Inc. (MTSI)
CIK: 0001493594
Period of Report: 2025-09-10

Reporting Person: OCAMPO SUSAN (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-09-10	Common Stock	S	39361	$132.46	Disposed	3916804	Indirect
2025-09-10	Common Stock	S	11000	$133.28	Disposed	3905804	Indirect
2025-09-11	Common Stock	S	73334	$132.42	Disposed	3832470	Indirect
2025-09-11	Common Stock	S	7557	$133.14	Disposed	3824913	Indirect
2025-09-12	Common Stock	S	53187	$132.53	Disposed	3771726	Indirect
2025-09-12	Common Stock	S	36681	$133.35	Disposed	3735045	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4415331	Indirect
Common Stock	1500000	Indirect
Common Stock	1623	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $132.00 to $132.995. 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.

F2: 1,057,270 of such shares are held by two trusts for the Reporting Person's son; 1,429,767 of such shares are held by two trusts for the Reporting Person's daughter; and 1,429,767 of such shares are held by two trusts for the Reporting Person's son.

F3: The Reporting Person is a trustee of two Ocampo Family Trusts, the GRAT and each of the following six trusts for the benefit of her children: (i) two trusts for her son; (ii) two trusts for her daughter; and (iii) two trusts for her son.

F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $133.20 to $133.40. 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: 1,053,604 of such shares are held by two trusts for the Reporting Person's son; 1,426,100 of such shares are held by two trusts for the Reporting Person's daughter; and 1,426,100 of such shares are held by two trusts for the Reporting Person's son.

F6: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $132.00 to $132.995. 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: 1,029,160 of such shares are held by two trusts for the Reporting Person's son; 1,401,655 of such shares are held by two trusts for the Reporting Person's daughter; and 1,401,655 of such shares are held by two trusts for the Reporting Person's son.

F8: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $133.00 to $133.29. 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: 1,026,641 of such shares are held by two trusts for the Reporting Person's son; 1,399,136 of such shares are held by two trusts for the Reporting Person's daughter; and 1,399,136 of such shares are held by two trusts for the Reporting Person's son.

F10: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $132.00 to $132.98. 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.

F11: 1,008,912 of such shares are held by two trusts for the Reporting Person's son; 1,381,407 of such shares are held by two trusts for the Reporting Person's daughter; and 1,381,407 of such shares are held by two trusts for the Reporting Person's son.

F12: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $133.00 to $133.68. 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.

F13: 996,685 of such shares are held by two trusts for the Reporting Person's son; 1,369,180 of such shares are held by two trusts for the Reporting Person's daughter; and 1,369,180 of such shares are held by two trusts for the Reporting Person's son.