Transaction · 0001214659-26-006933

Tseng Saria

Tseng Saria, EVP, GC, reported an open-market or private sale at MONOLITHIC POWER SYSTEMS INC involving 7565.000000 shares for an estimated $12860500.00. Reported holdings after the transaction were 144218.000000 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 29
Trade dateMay 27, 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
$1,566.21
Pre-filing
1mo ago +1.4%1w ago -0.8%1d ago +6.2%
Returns since
7d -5.4%30d -16.1%90d -16.1%180d -16.1%1y -16.1%

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 2026-05-29Filed 97 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
0001214659-26-006933
Common Stock
Transaction date
May 27, 2026
Filed May 29, 2026, 10:43 PM · 2d delay
Shares
7.56k sh
$170k per share
Estimated value
-$1.28B
Computed from shares × price
Holdings after
144k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Selling Direct Ownership Large Sale Repeat Seller
+10score
Filing-only score

+10

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

No footnotes recorded.

Original filing · 0001214659-26-006933
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

MPWR