Key facts
- This page summarizes Mr. Jeff Zhou's Form 4 filing for MONOLITHIC POWER SYSTEMS INC (MPWR).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 27 May 2026, 19:28.
Mr. Jeff Zhou - 26 May 2026 Form 4 Insider Report for MONOLITHIC POWER SYSTEMS INC (MPWR)
- Reporting relationship
- Director
- Issuer ticker
- MPWR
- Reported as of
- 26 May 2026
- Net transaction value
- -$816,480
- SEC form
- 4
- Accepted by SEC
- 27 May 2026, 19:28:18 UTC
- Prior SEC filing
- 06 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Saria Tseng, attorney-in-fact for Mr. Jeff Zhou
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Mr. Jeff Zhou filed Form 4 for MONOLITHIC POWER SYSTEMS INC (MPWR) on 27 May 2026.
Change
- Previous filing in this sequence was filed on 06 May 2026.
- Current net transaction value: -$816,480.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001480772
Primary reporting owner
Zhou Jeff
- Relationship
- Director
- Address
- 1555 PALM BEACH LAKES BLVD., WEST PALM BEACH
- Signature
- /s/ Saria Tseng, attorney-in-fact for Mr. Jeff Zhou
- Signature date
- 27 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
MPWR
transaction
Common Stock
Sale
- Transaction value
- $816,480
- Shares
- -486
- Change %
- -11%
- Price
- $1680.00
- Shares after
- 3,800
- Date
- 26 May 2026
- Ownership
- Direct
* marks a reported price that did not pass the local price check.