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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 2026-07-15. Form 144 filings signal an insider's intent to sell securities under SEC Rule 144 — they do not confirm a completed transaction. At leas…
Monolithic Power Systems (MPWR) had 1 Form 144 pre-sale notice filed on 2026-05-05. 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 2026-05-05. 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 2026-06-01. 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 |
|---|---|---|---|---|---|---|
| 8/11/2026 | CHANG KUO WEI HERBERT | — | SELL | -50 | $1,420 | $71,000 |
| 8/5/2026 | DEAN ROBERT W II | Interim CFO | SELL | -105 | $1,344 | $141,148 |
| 8/4/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | GIFT | -25,000 | — | — |
| 8/4/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | GIFT | 25,000 | — | — |
| 8/3/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -30 | $1,344 | $40,318 |
| 7/25/2026 | DEAN ROBERT W II | Interim CFO | GRANT | 1,359 | — | — |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -527 | $1,314 | $692,494 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -274 | $1,318 | $361,247 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -409 | $1,324 | $541,487 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -464 | $1,329 | $616,795 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -776 | $1,335 | $1,035,642 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -1,460 | $1,340 | $1,955,801 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -1,864 | $1,344 | $2,505,514 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -1,506 | $1,349 | $2,031,458 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -5,640 | $1,353 | $7,630,638 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -50 | $1,359 | $67,968 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -240 | $1,369 | $328,603 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -472 | $1,375 | $649,222 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -418 | $1,379 | $576,309 |
| 7/15/2026 | Sciammas Maurice | EVP, WW Sales & Marketing | SELL | -410 | $1,384 | $567,485 |
| Date | Filer | Relationship | Est. shares | Filing |
|---|---|---|---|---|
| 8/11/2026 | Kuo Wei Chang | — | 100 | SEC |
| 8/5/2026 | ROBERT DEAN | — | 105 | SEC |
| 7/15/2026 | MAURICE SCIAMMAS | — | 15,000 | SEC |
| 6/1/2026 | THEODORE BERNHARD BLEGEN | — | 3,001 | SEC |
| 5/28/2026 | SARIA TSENG | — | 7,565 | SEC |
| 5/26/2026 | DEAN ROBERT W II | — | 22 | SEC |
| 5/26/2026 | JEFF ZHOU | — | 486 | 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 |