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MACOM (MTSI) SVP sells 2,620 shares in pre-set Rule 10b5-1 trades

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

MACOM Technology Solutions Holdings SVP Donghyun Thomas Hwang sold 2,620 shares of common stock in open-market trades. On June 25, 2026, he executed 12 sales at prices ranging from about $367.30 to $391.94 per share, under a pre-arranged Rule 10b5-1 trading plan adopted on August 11, 2025. Following these transactions, he directly owns 29,756 shares of MACOM common stock.

Positive

  • None.

Negative

  • None.

Insights

Pre-planned 2,620-share sale by MACOM SVP appears routine in size.

Donghyun Thomas Hwang, SVP of Global Sales at MACOM Technology Solutions Holdings, sold 2,620 shares of common stock on June 25, 2026 through 12 open-market trades. Reported prices ranged roughly from $367.30 to $391.94 per share.

The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on August 11, 2025, indicating the timing was set in advance as part of routine portfolio management. After these transactions, he holds 29,756 shares directly, so the sale represents a modest portion of his disclosed equity stake.

No derivative exercises or tax-withholding events were reported, suggesting this filing reflects straightforward discretionary share sales under the plan rather than option-related activity. Subsequent filings may provide additional context if further planned trades occur under the same 10b5-1 arrangement.

Insider Hwang Donghyun Thomas
Role SVP, Global Sales
Sold 2,620 shs ($1.01M)
Type Security Shares Price Value
Sale Common Stock 100 $367.30 $37K
Sale Common Stock 100 $369.99 $37K
Sale Common Stock 200 $375.34 $75K
Sale Common Stock 100 $379.80 $38K
Sale Common Stock 420 $382.04 $160K
Sale Common Stock 300 $382.91 $115K
Sale Common Stock 9 $384.35 $3K
Sale Common Stock 400 $386.62 $155K
Sale Common Stock 200 $387.25 $77K
Sale Common Stock 400 $388.65 $155K
Sale Common Stock 291 $389.74 $113K
Sale Common Stock 100 $391.94 $39K
Holdings After Transaction: Common Stock — 32,276 shares (Direct, null)
Footnotes (1)
  1. 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $374.86 to $375.82. 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 $381.55 to $382.47. 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 $382.80 to $383.04. 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 $386.18 to $387.09. 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.pon 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 $387.20 to $387.30. 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. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $388.49 to $388.89. 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 $389.57 to $389.86. 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.
Shares sold 2,620 shares Common Stock sold on June 25, 2026
Number of sale transactions 12 transactions Individual open-market trades on June 25, 2026
Price range $367.30–$391.94 per share Reported sale prices for Common Stock
Shares owned after sale 29,756 shares Direct Common Stock holding after transactions
Rule 10b5-1 regulatory
"intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934"
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.
open-market sale financial
"Sale in open market or private transaction"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
Common Stock financial
"security_title": "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
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Form 4 Insider Transactions: What Each Field Means →
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*
Hwang Donghyun Thomas
(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, Global Sales
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/25/2026		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 Stock06/25/2026S(1)100D$367.332,276D
Common Stock06/25/2026S(1)100D$369.9932,176D
Common Stock06/25/2026S(1)200D$375.34(2)31,976D
Common Stock06/25/2026S(1)100D$379.831,876D
Common Stock06/25/2026S(1)420D$382.04(3)31,456D
Common Stock06/25/2026S(1)300D$382.91(4)31,156D
Common Stock06/25/2026S(1)9D$384.3531,147D
Common Stock06/25/2026S(1)400D$386.62(5)30,747D
Common Stock06/25/2026S(1)200D$387.25(6)30,547D
Common Stock06/25/2026S(1)400D$388.65(7)30,147D
Common Stock06/25/2026S(1)291D$389.74(8)29,856D
Common Stock06/25/2026S(1)100D$391.9429,756D
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. 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.
2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $374.86 to $375.82. 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.
3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $381.55 to $382.47. 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.
4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $382.80 to $383.04. 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.
5. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $386.18 to $387.09. 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.pon 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 $387.20 to $387.30. 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.
7. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $388.49 to $388.89. 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 $389.57 to $389.86. 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.
/s/ Ambra R. Roth, Attorney-in-Fact06/29/2026
** 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

FAQ

What did MACOM (MTSI) SVP Donghyun Thomas Hwang report in this Form 4?

He reported selling 2,620 shares of MACOM common stock in 12 open-market transactions on June 25, 2026. These trades were executed under a pre-arranged Rule 10b5-1 trading plan and left him holding 29,756 shares directly.

At what prices did the MACOM (MTSI) insider sell shares on June 25, 2026?

The reported sales prices for MACOM common stock ranged from about $367.30 to $391.94 per share. Individual transactions used weighted average prices, with detailed breakdowns available on request as described in the Form 4 footnotes.

How many MACOM (MTSI) shares does the SVP own after the reported sales?

After selling 2,620 shares, SVP Donghyun Thomas Hwang directly owns 29,756 shares of MACOM common stock. This post-transaction figure is disclosed in the Form 4 and reflects his remaining direct equity position following the June 25, 2026 trades.

Were the MACOM (MTSI) insider sales made under a Rule 10b5-1 plan?

Yes. The Form 4 states the shares were sold under a sales plan adopted on August 11, 2025 and intended to comply with Rule 10b5-1, which allows pre-scheduled trading arrangements to avoid discretionary timing decisions by insiders.

Did the MACOM (MTSI) Form 4 include any option exercises or derivative transactions?

No. The Form 4 lists only non-derivative common stock sales and shows zero derivative transactions in the summary. There are no reported option exercises, conversions, gifts, or tax-withholding dispositions associated with these June 25, 2026 trades.

How many separate sale transactions did the MACOM (MTSI) SVP execute in this filing?

The Form 4 reports 12 separate open-market sale transactions of MACOM common stock on June 25, 2026. Each line reflects a portion of the total 2,620 shares sold, using weighted average prices for trades executed within specified intraday price ranges.