Stephen G. Daly - 29 May 2026 Form 4 Insider Report for MACOM Technology Solutions Holdings, Inc. (MTSI)

Reporting relationship: President and CEO, Director
Issuer ticker: MTSI
Reported as of: 29 May 2026
Net transaction value: -$5,789,100
SEC form: 4
Accepted by SEC: 02 Jun 2026, 16:42:08 UTC
Prior SEC filing: 03 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Ambra R. Roth, Attorney-in-Fact

Key filing fact

Stephen G. Daly filed Form 4 for MACOM Technology Solutions Holdings, Inc. (MTSI) on 02 Jun 2026.

Key facts

This page summarizes Stephen G. Daly's Form 4 filing for MACOM Technology Solutions Holdings, Inc. (MTSI).
19 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 02 Jun 2026, 16:42.

Change

Previous filing in this sequence was filed on 03 Dec 2025.
Current net transaction value: -$5,789,100.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001330184 Primary reporting owner

Daly Stephen G

Relationship: President and CEO, Director
Address: C/O MACOM TECHNOLOGY SOLUTIONS HOLDINGS, 100 CHELMSFORD STREET, LOWELL
Signature: /s/ Ambra R. Roth, Attorney-in-Fact
Signature date: 02 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MTSI transaction

Common Stock

Sale

Transaction value: $537,660
Shares: -1,500
Change %: -2.8%
Price: $358.44
Shares after: 52,717
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F2

MTSI transaction

Common Stock

Sale

Transaction value: $790,614
Shares: -2,200
Change %: -4.2%
Price: $359.37
Shares after: 50,517
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F3

MTSI transaction

Common Stock

Sale

Transaction value: $144,196
Shares: -400
Change %: -0.79%
Price: $360.49
Shares after: 50,117
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F4

MTSI transaction

Common Stock

Sale

Transaction value: $327,266
Shares: -904
Change %: -1.8%
Price: $362.02
Shares after: 49,213
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F5

MTSI transaction

Common Stock

Sale

Transaction value: $881,581
Shares: -2,429
Change %: -4.9%
Price: $362.94
Shares after: 46,784
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F6

MTSI transaction

Common Stock

Sale

Transaction value: $755,030
Shares: -2,075
Change %: -4.4%
Price: $363.87
Shares after: 44,709
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F7

MTSI transaction

Common Stock

Sale

Transaction value: $1,028,990
Shares: -2,820
Change %: -6.3%
Price: $364.89
Shares after: 41,889
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F8

MTSI transaction

Common Stock

Sale

Transaction value: $109,938
Shares: -300
Change %: -0.72%
Price: $366.46
Shares after: 41,589
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F9

MTSI transaction

Common Stock

Sale

Transaction value: $220,770
Shares: -600
Change %: -1.4%
Price: $367.95
Shares after: 40,989
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F10

MTSI transaction

Common Stock

Sale

Transaction value: $110,814
Shares: -300
Change %: -0.73%
Price: $369.38
Shares after: 40,689
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F11

MTSI transaction

Common Stock

Sale

Transaction value: $112,227
Shares: -300
Change %: -0.74%
Price: $374.09
Shares after: 40,389
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F12

MTSI transaction

Common Stock

Sale

Transaction value: $75,020
Shares: -200
Change %: -0.5%
Price: $375.10
Shares after: 40,189
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F13

MTSI transaction

Common Stock

Sale

Transaction value: $151,544
Shares: -400
Change %: -1%
Price: $378.86
Shares after: 39,789
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F14

MTSI transaction

Common Stock

Sale

Transaction value: $38,098
Shares: -100
Change %: -0.25%
Price: $380.98
Shares after: 39,689
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F15

MTSI transaction

Common Stock

Sale

Transaction value: $38,260
Shares: -100
Change %: -0.25%
Price: $382.60
Shares after: 39,589
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F16

MTSI transaction

Common Stock

Sale

Transaction value: $38,646
Shares: -100
Change %: -0.25%
Price: $386.46
Shares after: 39,489
Date: 29 May 2026
Ownership: Direct
Footnotes: F1

MTSI transaction

Common Stock

Sale

Transaction value: $213,997
Shares: -551
Change %: -1.4%
Price: $388.38
Shares after: 38,938
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F17

MTSI transaction

Common Stock

Sale

Transaction value: $58,021
Shares: -149
Change %: -0.38%
Price: $389.40
Shares after: 38,789
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F18

MTSI transaction

Common Stock

Sale

Transaction value: $156,428
Shares: -400
Change %: -1%
Price: $391.07
Shares after: 38,389
Date: 29 May 2026
Ownership: Direct
Footnotes: F1, F19

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 19 footnotes

Footnote F1

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.

Footnote F2

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.

Footnote F3

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.

Footnote F4

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.

Footnote F5

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.

Footnote F6

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.

Footnote F7

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.

Footnote F8

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.

Footnote F9

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.

Footnote F10

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.

Footnote F11

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.

Footnote F12

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.

Footnote F13

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.

Footnote F14

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.

Footnote F15

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.

Footnote F16

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.

Footnote F17

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.

Footnote F18

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.

Footnote F19

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.