Tseng Saria sold MPWR

April 8, 2026 · Form 4 insider transaction

Tseng Saria sold 840 shares of Monolithic Power Systems, Inc. at $1319.25 per share, a transaction worth $1.11M. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.

Direction
Disposed (sell-side)
Shares
840
Price
$1319.25
Total value
$1.11M
RoleOfficer
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateApril 8, 2026
Filing dateApril 10, 2026
Shares owned after157,103
OwnershipDirect
10b5-1 planYes
AmendedNo

Footnotes

These transactions were made pursuant to a Rule 10b5-1 trading plan adopted on 11/28/2025.; The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $1,316.25 to $1,321.04. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

View the original Form 4 on SEC EDGAR