Hwang Donghyun Thomas — SEC Form 4 filings
SEC reporting owner CIK 1480330. 28 Form 4 filings on record with FilingPulse; latest filed 2026-06-29.
Transaction summary — filings shown
Covers all 28 filings on record, filed 2024-01-31 to 2026-06-29. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 79 legs across 17 filings — 81,227 shares, $11,966,804 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 22.
- Largest priced transaction: sale of 7,355 shares @ $133.00 ($978,215) in MACOM Technology Solutions Holdings, Inc., filed 2025-01-29.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| MACOM Technology Solutions Holdings, Inc. (MTSI) | SVP, Global Sales | 28 | — | 79 legs · 81,227 sh · $11,966,804 | 22 |
Form 4 filings — Hwang Donghyun Thomas
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-29 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 100 @ $367.30 · Sale (S): 100 @ $369.99 · Sale (S): 200 @ $375.34 · Sale (S): 100 @ $379.80 · Sale (S): 420 @ $382.04 · Sale (S): 300 @ $382.91 · +6 more | EDGAR |
| 2026-05-20 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 85 @ $138.13 · Sale (S): 300 @ $353.32 · Sale (S): 300 @ $355.06 · Sale (S): 500 @ $356.68 · Sale (S): 300 @ $358.84 · Sale (S): 500 @ $360.38 · +6 more | EDGAR |
| 2026-05-04 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 100 @ $271.40 · Sale (S): 200 @ $273.48 · Sale (S): 1,518 @ $274.79 · Sale (S): 100 @ $275.73 · Sale (S): 200 @ $276.81 · Sale (S): 700 @ $278.42 · +3 more | EDGAR |
| 2026-02-04 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 1,715 @ $217.38 · Sale (S): 100 @ $225.01 · Sale (S): 400 @ $226.58 · Sale (S): 800 @ $227.92 · Sale (S): 359 @ $228.70 · Sale (S): 300 @ $230.20 · +4 more | EDGAR |
| 2025-12-08 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 1,617 @ $183.40 · Sale (S): 200 @ $184.24 · Sale (S): 400 @ $185.35 · Sale (S): 875 @ $186.76 · Sale (S): 880 @ $187.60 · Sale (S): 300 @ $188.62 · +1 more | EDGAR |
| 2025-11-21 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 291 @ $158.27 · Sale (S): 1,421 @ $160.35 · Sale (S): 1,177 @ $161.38 · Sale (S): 596 @ $162.38 · Sale (S): 304 @ $163.64 · Gift (G): 1,500 @ $0 | EDGAR |
| 2025-11-18 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 83 @ $104.94 | EDGAR |
| 2025-11-10 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 38,591 @ $0 · Tax withholding (F): 17,117 @ $166.92 · Tax withholding (F): 471 @ $170.03 | EDGAR |
| 2025-10-30 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 2,332 @ $0 | EDGAR |
| 2025-10-29 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Tax withholding (F): 412 @ $146.39 | EDGAR |
| 2025-10-27 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Tax withholding (F): 246 @ $139.31 | EDGAR |
| 2025-07-24 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Option exercise (M): 5,000 @ $16.06 · Sale (S): 1,100 @ $135.85 · Sale (S): 2,231 @ $136.78 · Sale (S): 157 @ $137.41 · Sale (S): 575 @ $138.73 · Sale (S): 937 @ $139.89 · +1 more | EDGAR |
| 2025-05-20 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 120 @ $104.55 | EDGAR |
| 2025-05-12 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 2,416 @ $117.89 · Sale (S): 2,528 @ $119.26 | EDGAR |
| 2025-05-02 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 6,471 @ $100 | EDGAR |
| 2025-03-05 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 1,583 @ $116.61 | EDGAR |
| 2025-01-29 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 7,355 @ $133 | EDGAR |
| 2024-11-21 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 95 @ $86.65 | EDGAR |
| 2024-11-12 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 25,459 @ $0 · Tax withholding (F): 11,173 @ $139.14 · Tax withholding (F): 471 @ $137.86 | EDGAR |
| 2024-11-08 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 1,500 @ $118.38 | EDGAR |
| 2024-10-29 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Tax withholding (F): 673 @ $121.70 · Tax withholding (F): 386 @ $117.54 | EDGAR |
| 2024-10-25 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 2,513 @ $0 | EDGAR |
| 2024-09-05 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 1,428 @ $103.21 · Sale (S): 1,110 @ $104.21 · Sale (S): 900 @ $105.11 · Sale (S): 937 @ $106.56 | EDGAR |
| 2024-07-24 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Option exercise (M): 5,000 @ $16.06 · Sale (S): 2,115 @ $105.34 · Sale (S): 1,349 @ $106.18 · Sale (S): 1,236 @ $107.41 · Sale (S): 300 @ $108.17 · Option exercise (M): 5,000 (derivative) @ $0 | EDGAR |
| 2024-05-15 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Grant/award (A): 198 @ $65.54 | EDGAR |
| 2024-05-10 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 1,585 @ $102.01 · Sale (S): 5,415 @ $102.84 | EDGAR |
| 2024-03-13 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 6,406 @ $91.99 · Sale (S): 2,991 @ $92.79 | EDGAR |
| 2024-01-31 | 4 | MACOM Technology Solutions Holdings, Inc. (MTSI) | Sale (S): 6,034 @ $87.75 · Sale (S): 200 @ $88.27 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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