XNAS · SEMICONDUCTORS & RELATED DEVICES · SEMICONDUCTORS & RELATED DEVICES
Includes notes from domestic 8-K and foreign private issuer 6-K disclosures.
Monolithic Power Systems (MPWR) had 1 Form 144 pre-sale notice filed on 2026-06-01. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At leas…
Monolithic Power Systems (MPWR) had 1 Form 144 pre-sale notice filed on 2026-05-28. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Monolithic Power Systems (MPWR) had 2 Form 144 pre-sale notices filed on 2026-05-26. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Monolithic Power Systems (MPWR) had 1 Form 144 pre-sale notice filed on 2026-05-22. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Monolithic Power Systems (MPWR) had 2 Form 144 pre-sale notices filed on 2026-05-18. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Monolithic Power Systems (MPWR) had 1 Form 144 pre-sale notice filed on 2026-05-15. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At leas…
TL;DR: Monolithic Power Systems delivered record quarterly revenue of $804.2 million in Q1 2026, up 26.1% from $637.6 million in the year-ago quarter.
Monolithic Power Systems (MPWR) had 4 Form 144 pre-sale notices filed on 2026-05-06. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction.
Monolithic Power Systems (MPWR) had 3 Form 144 pre-sale notices filed between 2026-04-06 and 2026-05-01. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed…
Monolithic Power Systems, Inc. (MPWR) had 3 Form 144 pre-sale notices filed between 2026-04-06 and 2026-05-01. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a com…
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 6/1/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -30 | $1,534 | $46,019 |
| 5/29/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | GIFT | -12,472 | — | — |
| 5/27/2026 | Tseng Saria | EVP & General Counsel | SELL | -7,565 | $1,700 | $12,860,500 |
| 5/26/2026 | Zhou Jeff | — | SELL | -486 | $1,680 | $816,480 |
| 5/26/2026 | DEAN ROBERT W II | Interim CFO | SELL | -22 | $1,650 | $36,290 |
| 5/22/2026 | Tseng Saria | EVP & General Counsel | GIFT | -200 | — | — |
| 5/22/2026 | Tseng Saria | EVP & General Counsel | SELL | -5,000 | $1,586 | $7,932,150 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -3,424 | $1,463 | $5,007,977 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -5,819 | $1,468 | $8,540,081 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -5,049 | $1,473 | $7,436,369 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -4,082 | $1,477 | $6,028,951 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -5,737 | $1,483 | $8,505,160 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -6,688 | $1,487 | $9,943,451 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -862 | $1,491 | $1,285,656 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -608 | $1,499 | $911,672 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -2,929 | $1,503 | $4,402,433 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -3,769 | $1,508 | $5,682,521 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -551 | $1,513 | $833,724 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -352 | $1,518 | $534,389 |
| 5/18/2026 | Hsing Michael | CEO | SELL | -130 | $1,521 | $197,786 |
| Date | Filer | Relationship | Est. shares | Filing |
|---|---|---|---|---|
| 6/1/2026 | THEODORE BERNHARD BLEGEN | — | 3,001 | SEC |
| 5/28/2026 | SARIA TSENG | — | 7,565 | SEC |
| 5/26/2026 | JEFF ZHOU | — | 486 | SEC |
| 5/26/2026 | DEAN ROBERT W II | — | 22 | SEC |
| 5/22/2026 | SARIA TSENG | — | 5,000 | SEC |
| 5/18/2026 | MICHAEL HSING | — | 40,000 | SEC |
| 5/18/2026 | DEAN ROBERT W II | — | 4 | SEC |
| 5/15/2026 | MAURICE SCIAMMAS | — | 12,000 | SEC |
| 5/6/2026 | EILEEN WYNNE | — | 335 | SEC |
| 5/6/2026 | Elmiger Eugen J | — | 12,000 | SEC |