Updated Jul 16, 2026 · Last SEC filing 2026-06-29
MACOM Technology Solutions Holdings, Inc. (MTSI) has filed 11 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-29. 1 Form 8-K material event filings were reported by MTSI in the last 90 days. 14 Form 144 notices of proposed sale were filed for MTSI stock. InsiderAlpha tracks every MTSI SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Semiconductors & Related Devices (SIC 3674) |
|---|---|
| SEC CIK | 0001493594 |
| Form 4 filings (90d) | 11 |
|---|---|
| Form 8-K filings (90d) | 1 |
| Form 144 notices (90d) | 14 |
| Latest Form 4 filing | 2026-06-29 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 9 | $384.35 | $3K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 291 | $389.74 | $113K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 200 | $375.34 | $75K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 300 | $382.91 | $115K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 400 | $388.65 | $155K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 100 | $391.94 | $39K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 100 | $367.30 | $37K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 100 | $369.99 | $37K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 100 | $379.80 | $38K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 420 | $382.04 | $160K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 400 | $386.62 | $155K | SEC | |
| Hwang Donghyun Thomas | SVP, Global Sales | S — Open-market sale | 200 | $387.25 | $77K | SEC | |
| Daly Stephen G | President and CEO | S — Open-market sale | 300 | $369.38 | $111K | SEC | |
| Daly Stephen G | President and CEO | S — Open-market sale | 600 | $367.95 | $221K | SEC | |
| Daly Stephen G | President and CEO | S — Open-market sale | 300 | $374.09 | $112K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for MACOM Technology Solutions Holdings, Inc. (MTSI). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Hwang Donghyun Thomas | 33 | $2.98M |
| Daly Stephen G | 19 | $5.79M |
| Kober John | 14 | $2.76M |
| BLAND CHARLES R | 3 | $304K |
| Shanmugaraj Murugesan | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MTSI insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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