MACOM Technology Solutions Holdings, Inc.
Ownership
Ownership Structure
Who owns MACOM Technology Solutions Holdings, Inc. (MTSI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 93.3% of the shares are freely tradable; institutional investors hold 99.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| FMR Inc | 13.78 | 10,527,144 | -0.8 | 06/30/2026 |
| BlackRock Inc | 12.46 | 9,512,899 | +11.1 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.72 | 3,605,324 | +0.5 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.01 | 3,064,683 | +2.4 | 06/30/2026 |
| T. Rowe Price Investment Management,Inc. | 3.73 | 2,850,185 | -36.5 | 06/30/2026 |
| State Street Corp | 2.96 | 2,262,242 | +5.1 | 06/30/2026 |
| Amvescap Plc. | 2.81 | 2,149,581 | -41.5 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Fidelity Select Semiconductors | 4.89 | 3,734,864 | -2.2 | 08/31/2026 |
| iShares Core S&P Mid-Cap ETF | 3.24 | 2,475,517 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.01 | 2,301,731 | +5.5 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Daly Stephen G | President and CEO | 41,137 | 9,140,641 $ | Oct 28, 2026 | direct |
| Kober John | Senior VP and CFO | 33,996 | 7,553,911 $ | Oct 28, 2026 | direct |
| Hwang Donghyun Thomas | SVP, Global Sales | 30,720 | 6,825,984 $ | Oct 28, 2026 | direct |
| Dennehy Robert | Senior VP and COO | 14,361 | 3,191,014 $ | Oct 28, 2026 | direct |
| Roth Ambra R. | SVP, GC and Secretary | 10,005 | 2,223,111 $ | Oct 28, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 28, 2026 | Dennehy Robert | Senior VP and COO | Other | 241 | 260.92 | 62,882 |
| Oct 28, 2026 | Hwang Donghyun Thomas | SVP, Global Sales | Other | 229 | 260.92 | 59,751 |
| Oct 28, 2026 | Roth Ambra R. | SVP, GC and Secretary | Other | 279 | 260.92 | 72,797 |
| Oct 28, 2026 | Kober John | Senior VP and CFO | Other | 409 | 260.92 | 106,716 |
| Oct 28, 2026 | Daly Stephen G | President and CEO | Other | 1,637 | 260.92 | 427,126 |
| Oct 26, 2026 | Kober John | Senior VP and CFO | Sell | 1,027 | 236.60 | 242,988 |
| Oct 23, 2026 | Roth Ambra R. | SVP, GC and Secretary | Other | 301 | 236.24 | 71,108 |
| Oct 23, 2026 | Dennehy Robert | Senior VP and COO | Other | 260 | 236.24 | 61,422 |
| Oct 23, 2026 | Hwang Donghyun Thomas | SVP, Global Sales | Other | 246 | 236.24 | 58,115 |
| Oct 23, 2026 | Kober John | Senior VP and CFO | Other | 428 | 236.24 | 101,111 |
| Oct 23, 2026 | Daly Stephen G | President and CEO | Other | 1,556 | 236.24 | 367,589 |
| Oct 21, 2026 | Dennehy Robert | Senior VP and COO | Other | 2,104 | 0.00 | – |
| Oct 21, 2026 | Hwang Donghyun Thomas | SVP, Global Sales | Other | 1,439 | 0.00 | – |
| Oct 21, 2026 | Roth Ambra R. | SVP, GC and Secretary | Other | 1,401 | 0.00 | – |
| Oct 21, 2026 | Kober John | Senior VP and CFO | Other | 2,277 | 0.00 | – |
| Oct 21, 2026 | Daly Stephen G | President and CEO | Other | 5,941 | 0.00 | – |
| Oct 1, 2026 | Roth Ambra R. | SVP, GC and Secretary | Sell | 653 | 300.00 | 195,900 |
| Aug 28, 2026 | Dennehy Robert | Senior VP and COO | Sell | 252 | 275.20 | 69,350 |
| Aug 17, 2026 | Kober John | Senior VP and CFO | Sell | 300 | 329.75 | 98,925 |
| Aug 17, 2026 | Kober John | Senior VP and CFO | Sell | 1,600 | 328.78 | 526,048 |
| Aug 17, 2026 | Kober John | Senior VP and CFO | Sell | 1,699 | 327.78 | 556,898 |
| Aug 17, 2026 | Kober John | Senior VP and CFO | Sell | 500 | 326.51 | 163,255 |
| Aug 17, 2026 | Kober John | Senior VP and CFO | Sell | 900 | 325.26 | 292,734 |
| Aug 17, 2026 | Kober John | Senior VP and CFO | Sell | 400 | 330.67 | 132,268 |
| Aug 17, 2026 | Kober John | Senior VP and CFO | Sell | 1,590 | 320.57 | 509,706 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.