Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
May 13, 2026
Reporting period
Not applicable
Filed with the SEC
May 15, 2026
CFOOther
Context
Classification
other
Code J — not an open-market trade
Planned / mechanical clue
None found in footnotes
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001214659-26-006498
Filed / recorded
May 15, 2026, 8:15 PM UTC
Added to OQRO
Oct 2, 2026, 12:28 PM UTC
Parser
form4-xml-v1
Data quality
Verified: identifiers matched exactly
Issuer
MONOLITHIC POWER SYSTEMS INC
Issuer CIK
1280452
Ticker
MPWR
Reporting person
Robert W Ii Dean
Relationship
Officer
Officer title
Interim CFO
Security
Common Stock
Table
Non-derivative (Table I)
Transaction date
May 13, 2026
Transaction code
J
Shares / units
2,156
Price per share
$0.00
Acquired / disposed
Disposed (D)
Shares owned after
5,904
Ownership form
Direct
Amendment
No
Footnotes from the filing
The reported transaction involved a transfer of securities from the reporting person's direct holdings to an individual who is not an immediate family member sharing the same household. No funds were exchanged and no sale of shares occurred in the transfer. Following the completion of the transfer, the reporting person no longer retains any pecuniary interest in the shares.