Transaction · 0001214659-26-006798

Tseng Saria

Tseng Saria, EVP, GC, reported an open-market or private sale at MONOLITHIC POWER SYSTEMS INC involving 5000.000000 shares for an estimated $7932150.00. Reported holdings after the transaction were 151783.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market sellSEC transaction code SEVP, GC
MPWRMONOLITHIC POWER SYSTEMS INC
Filing timeMay 27
Trade dateMay 22, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$1,620.17
Pre-filing
1mo ago -6.1%1w ago -4.3%1d ago -3.6%
Returns since
7d +4.3%30d -18.9%90d -18.9%180d -18.9%1y -18.9%

MPWR price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
MPWR since 2026-05-27Filed 99 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001214659-26-006798
Common Stock
Transaction date
May 22, 2026
Filed May 27, 2026, 09:07 PM · 5d delay
Shares
5.00k sh
$158k per share
Estimated value
-$793M
Computed from shares × price
Holdings after
151k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership Large Sale
+6score
Filing-only score

+6

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

EVP & General Counsel

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    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…

Original filing · 0001214659-26-006798
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

MPWR