SEC Form 4 · Updated Daily
MTSI
— MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| OCAMPO JOHN L | 10%+ Owner · Director | 8,493,040 | 2023-11-20 | S |
| OCAMPO SUSAN | 10%+ Owner | 4,021,658 | 2026-02-24 | S |
| SUMMIT PARTNERS L P | 10%+ Owner | 3,515,938 | 2016-01-28 | S |
| Summit Investors I (UK), L.P. | 10%+ Owner | 3,515,938 | 2016-01-28 | S |
| Summit Partners Private Equity Fund VII-A, L.P. | 10%+ Owner | 3,515,938 | 2016-01-28 | S |
| Summit Partners Private Equity Fund VII B L P | 10%+ Owner | 3,515,938 | 2016-01-28 | S |
| Summit Investors I, LLC | 10%+ Owner | 3,515,938 | 2016-01-28 | S |
| Summit Partners PE VII, LLC | Reporting Owner | 3,515,938 | 2016-01-28 | S |
| SUMMIT MASTER COMPANY, LLC | Reporting Owner | 3,515,938 | 2016-01-28 | S |
| Summit Investors Management, LLC | Reporting Owner | 3,515,938 | 2016-01-28 | S |
| Summit Partners PE VII, L.P. | Reporting Owner | 3,515,938 | 2016-01-28 | S |
| MANNION MARTIN J | Reporting Owner | 3,515,938 | 2016-01-28 | S |
| Croteau John | Reporting Owner | 132,275 | 2019-05-15 | F |
| Gagnon Conrad | Officer | 119,743 | 2013-04-23 | A |
| Rajgarhia Vivek | Officer | 85,247 | 2019-05-17 | A |
| Bajwa Najabat H. | Officer | 68,825 | 2015-04-22 | A |
| Virk Preetinder S. | Officer | 67,559 | 2019-05-17 | A |
| MCMULLAN ROBERT | Officer | 52,561 | 2018-11-20 | S |
| Behfar Alex | Officer | 50,329 | 2018-11-20 | S |
| Ramnath Suja | Director | 49,169 | 2014-05-19 | S |
| Daly Stephen G | Director · Officer | 44,330 | 2026-10-21 | A |
| Struble Wayne Mack | Officer | 38,800 | 2025-11-06 | A |
| VAN LUNSEN GIL J | Director | 37,806 | 2022-03-04 | A |
| Kober John | Officer | 35,860 | 2026-10-21 | A |
| Murphy Michael T. | Officer | 34,380 | 2017-05-17 | S |
| Hwang Donghyun Thomas | Officer | 31,195 | 2026-10-21 | A |
| Hegarty Conor Noel | Officer | 23,658 | 2019-04-10 | A |
| Kennedy John Francis | Officer | 19,153 | 2017-05-17 | S |
| Baker Walter Gregory | Officer | 17,550 | 2016-09-16 | S |
| Dennehy Robert | Officer | 14,862 | 2026-10-21 | A |
| BLAND CHARLES R | Director | 13,938 | 2026-05-18 | G |
| RIBAR GEOFFREY G | Director | 12,563 | 2026-05-11 | S |
| Roth Ambra R. | Officer | 10,585 | 2026-10-21 | A |
| Ritchie John | Director | 9,466 | 2026-03-06 | A |
| Rosenband Jihye Whang | Director | 7,165 | 2026-03-06 | A |
| Edelstone Mark | Director | 6,900 | 2014-02-28 | A |
| CHUNG PETER Y | Director | 6,781 | 2026-05-14 | S |
| CARLSON DOUGLAS J | Officer | 6,078 | 2023-11-29 | S |
| Shanmugaraj Murugesan | Director | 5,214 | 2026-05-19 | G |
| Ingram Bryan | Director | 1,747 | 2026-03-06 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-21 | Daly Stephen G | Grant / award | 5,941 | $0.00 | 44,330 |
| 2026-10-21 | Kober John | Grant / award | 2,277 | $0.00 | 35,860 |
| 2026-10-21 | Roth Ambra R. | Grant / award | 1,401 | $0.00 | 10,585 |
| 2026-10-21 | Hwang Donghyun Thomas | Grant / award | 1,439 | $0.00 | 31,195 |
| 2026-10-21 | Dennehy Robert | Grant / award | 2,104 | $0.00 | 14,862 |
| 2026-10-01 | Roth Ambra R. | Open-market sale | 653 | $300.00 | 9,184 |
| 2026-08-28 | Dennehy Robert | Open-market sale | 252 | $275.20 | 12,758 |
| 2026-08-17 | Kober John | Open-market sale | 400 | $330.67 | 33,583 |
| 2026-08-17 | Kober John | Open-market sale | 300 | $329.75 | 33,983 |
| 2026-08-17 | Kober John | Open-market sale | 1,600 | $328.78 | 34,283 |
| 2026-08-17 | Kober John | Open-market sale | 1,699 | $327.78 | 35,883 |
| 2026-08-17 | Kober John | Open-market sale | 500 | $326.51 | 37,582 |
| 2026-08-17 | Kober John | Open-market sale | 900 | $325.26 | 38,082 |
| 2026-08-17 | Kober John | Open-market sale | 400 | $323.97 | 38,982 |
| 2026-08-17 | Kober John | Open-market sale | 1,590 | $320.57 | 39,382 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 100 | $391.94 | 29,756 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 291 | $389.74 | 29,856 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 400 | $388.65 | 30,147 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 200 | $387.25 | 30,547 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 400 | $386.62 | 30,747 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 9 | $384.35 | 31,147 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 300 | $382.91 | 31,156 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 420 | $382.04 | 31,456 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 100 | $379.80 | 31,876 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 200 | $375.34 | 31,976 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 100 | $369.99 | 32,176 |
| 2026-06-25 | Hwang Donghyun Thomas | Open-market sale | 100 | $367.30 | 32,276 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 400 | $391.07 | 38,389 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 149 | $389.40 | 38,789 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 551 | $388.38 | 38,938 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 100 | $386.46 | 39,489 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 100 | $382.60 | 39,589 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 100 | $380.98 | 39,689 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 400 | $378.86 | 39,789 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 200 | $375.10 | 40,189 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 300 | $374.09 | 40,389 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 300 | $369.38 | 40,689 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 600 | $367.95 | 40,989 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 300 | $366.46 | 41,589 |
| 2026-05-29 | Daly Stephen G | Open-market sale | 2,820 | $364.89 | 41,889 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.