Tseng Saria sold MPWR

April 6, 2026 · Form 4 insider transaction

Tseng Saria sold 480 shares of Monolithic Power Systems, Inc. at $1149.05 per share, a transaction worth $551.5K. 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
480
Price
$1149.05
Total value
$551.5K
RoleOfficer
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateApril 6, 2026
Filing dateApril 8, 2026
Shares owned after172,302
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 $1,147.58 to $1,152.19. 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