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  4. [Form 4] MACOM Technology Solutions Holdings, Inc. Insider Trading Activity

MACOM counsel Ambra R. Roth sells 9,497 shares

The report lists 15 sale entries separately from the award settlement and tax-withholding transactions.

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Form Type
4

Rhea-AI Filing Summary

MACOM Technology Solutions Holdings, Inc. (MTSI) SVP, GC and Secretary Ambra R. Roth sold 9,497 shares of common stock on November 9, 2026, in transactions reported at $212.43 to $230.01 per share. The sales were made under a plan adopted May 21, 2026, intended to comply with Rule 10b5-1. On November 5, performance-based restricted stock units vested and settled in 31,387 shares; 15,688 shares were withheld for related tax obligations. A separate 541-share withholding was reported on November 6 for tax obligations tied to restricted stock units vesting November 8.

Insider Roth Ambra R.
Role SVP, GC and Secretary
Sold 9,497 shs ($2.15M)
Type Security Shares Price Value
Sale Common Stock F4 40 $212.43 $8K
Sale Common Stock F4 40 $213.56 $9K
Sale Common Stock F4, F5 80 $214.98 $17K
Sale Common Stock F4 80 $217.70 $17K
Sale Common Stock F4, F6 120 $219.30 $26K
Sale Common Stock F4, F7 280 $220.69 $62K
Sale Common Stock F4, F8 120 $222.11 $27K
Sale Common Stock F4, F9 560 $223.19 $125K
Sale Common Stock F4, F10 760 $224.11 $170K
Sale Common Stock F4, F11 1,040 $225.23 $234K
Sale Common Stock F4, F12 1,240 $226.21 $281K
Sale Common Stock F4, F13 1,240 $227.23 $282K
Sale Common Stock F4, F14 840 $228.18 $192K
Sale Common Stock F4, F15 697 $229.17 $160K
Sale Common Stock F4, F16 2,360 $230.01 $543K
Tax Withholding Common Stock F3 541 $210.98 $114K
Grant/Award Common Stock F1 31,387 $0.00 $0.00
Tax Withholding Common Stock F2 15,688 $190.35 $2.99M
Holdings After Transaction: Common Stock — 15,666 shares (Direct)
Footnotes (16)
  1. F1. 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.
  2. F2. 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.
  3. F3. 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.
  4. F4. The shares were sold pursuant to a sales plan adopted by the Reporting Person on May 21, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.
  5. F5. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $214.95 to $215.00. 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.
  6. F6. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $219.04 to $219.76. 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.
  7. F7. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $220.24 to $221.18. 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.
  8. F8. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $221.52 to $222.46. 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.
  9. F9. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $222.56 to $223.53. 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.
  10. F10. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $223.57 to $224.56. 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.
  11. F11. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $224.69 to $225.68. 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.
  12. F12. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $225.70 to $226.69. 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.
  13. F13. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $226.72 to $227.68. 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.
  14. F14. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $227.75 to $228.74. 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.
  15. F15. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $228.89 to $229.87. 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.
  16. F16. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $230.00 to $230.29. 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.
Common shares sold 9,497 shares November 9, 2026
Reported sale price $212.43 per share One November 9, 2026 sale entry
Reported sale price $230.01 per share One November 9, 2026 sale entry
Performance-based restricted stock units settled 31,387 shares Vested and settled November 5, 2026
Shares withheld for tax obligations 15,688 shares Related to PRSU vesting and settlement on November 5, 2026
Shares withheld for tax obligations 541 shares Transaction reported November 6, 2026; tied to RSU vesting on November 8
performance-based restricted stock units financial
"performance-based restricted stock units ("PRSUs")"
Performance-based restricted stock units are a type of employee equity award that converts into company shares only if predefined financial or operational targets are met over a set period. Think of it like a bonus check that becomes stock only when specific goals are hit; it ties pay to results, aligning managers’ incentives with shareholders. Investors care because these awards affect future share count, executive incentives, and signal how management’s success will be measured and rewarded.
Rule 10b5-1 regulatory
"intended to comply with Rule 10b5-1"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.
weighted average price financial
"The price reported in Column 4 is a weighted average price"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many MTSI shares did Ambra R. Roth sell, and at what prices?
Ambra R. Roth sold 9,497 MTSI common shares on November 9, 2026, across 15 reported transactions with prices from $212.43 to $230.01 per share. The sales were made under a plan adopted May 21, 2026, intended to comply with Rule 10b5-1.

How many MTSI performance-based stock units vested, and how many shares were withheld?
On November 5, 2026, 31,387 performance-based restricted stock units vested and settled in common shares, and 15,688 shares were withheld for tax obligations. A separate 541 shares were withheld in connection with restricted stock unit vesting on November 8, as reported in the November 6 transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →
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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Roth Ambra R.
(Last)(First)(Middle)
C/O MACOM TECHNOLOGY SOLUTIONS HOLDINGS
100 CHELMSFORD STREET
(Street)
LOWELL MASSACHUSETTS 01851
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
MACOM Technology Solutions Holdings, Inc. [ MTSI ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
SVP, GC and Secretary
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/05/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock11/05/2026A31,387(1)A$041,392D
Common Stock11/05/2026F15,688(2)D$190.3525,704D
Common Stock11/06/2026F541(3)D$210.9825,163D
Common Stock11/09/2026S(4)40D$212.4325,123D
Common Stock11/09/2026S(4)40D$213.5625,083D
Common Stock11/09/2026S(4)80D$214.98(5)25,003D
Common Stock11/09/2026S(4)80D$217.724,923D
Common Stock11/09/2026S(4)120D$219.3(6)24,803D
Common Stock11/09/2026S(4)280D$220.69(7)24,523D
Common Stock11/09/2026S(4)120D$222.11(8)24,403D
Common Stock11/09/2026S(4)560D$223.19(9)23,843D
Common Stock11/09/2026S(4)760D$224.11(10)23,083D
Common Stock11/09/2026S(4)1,040D$225.23(11)22,043D
Common Stock11/09/2026S(4)1,240D$226.21(12)20,803D
Common Stock11/09/2026S(4)1,240D$227.23(13)19,563D
Common Stock11/09/2026S(4)840D$228.18(14)18,723D
Common Stock11/09/2026S(4)697D$229.17(15)18,026D
Common Stock11/09/2026S(4)2,360D$230.01(16)15,666D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. 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.
2. 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.
3. 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.
4. The shares were sold pursuant to a sales plan adopted by the Reporting Person on May 21, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934.
5. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $214.95 to $215.00. 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.
6. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $219.04 to $219.76. 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.
7. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $220.24 to $221.18. 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.
8. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $221.52 to $222.46. 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.
9. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $222.56 to $223.53. 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.
10. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $223.57 to $224.56. 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.
11. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $224.69 to $225.68. 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.
12. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $225.70 to $226.69. 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.
13. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $226.72 to $227.68. 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.
14. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $227.75 to $228.74. 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.
15. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $228.89 to $229.87. 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.
16. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $230.00 to $230.29. 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.
/s/ Ambra R. Roth11/09/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

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