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Who

Saria Tseng

EVP & General Counsel

Company insider

Files Form 4 as: EVP & General Counsel, Monolithic Power Systems; Director, Super Micro Computer.

In numbers

Trades disclosed
601
Buys
0
Sells
261
Bought
$0
Sold
$482.3M
Companies
2
Companies where not an officer
1
First trade
14 Mar 2006
Last trade
31 Aug 2026
Last filed
2 Sep 2026

Companies traded

Where they are an officer
MPWR Monolithic Power SystemsOfficer · Semiconductors · last 31 Aug 20260 buys · 261 sells
Everywhere else they filed: board seats, 10% stakes, other companies
SMCI Super Micro ComputerDirector · Hardware, Devices & Storage · last 3 Aug 20210 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
30Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
31 Aug 2026filed 2 Sep 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Code G—2,000 at $0.00filing
31 Aug 2026filed 2 Sep 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Code G—2,000 at $0.00filing
31 Aug 2026filed 2 Sep 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Code G—2,000 at $0.00filing
31 Aug 2026filed 2 Sep 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Code G—2,000 at $0.00filing
27 May 2026filed 29 May 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$12.9M7,565 at $1,700.00filing
27 May 2026filed 29 May 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$12.9M7,565 at $1,700.00filing
22 May 2026filed 27 May 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Code G—200 at $0.00filing
22 May 2026filed 27 May 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$7.9M5,000 at $1,586.43filing
22 May 2026filed 27 May 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Code G—200 at $0.00filing
22 May 2026filed 27 May 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$7.9M5,000 at $1,586.43filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$709K560 at $1,266.48filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$159K120 at $1,321.94filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$457K360 at $1,270.29filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$307K240 at $1,279.55filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$154K120 at $1,287.12filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$517K400 at $1,292.08filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$1.0M800 at $1,302.52filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$1.7M1,279 at $1,308.30filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$5.6M4,244 at $1,312.82filing
8 Apr 2026filed 10 Apr 2026MPWR Monolithic Power SystemsSemiconductorsSEC FORM 4 Sold$709K560 at $1,266.48filing

The newest 500 lines are listed; the numbers count every line.

Sectors

Technology261

Buys in green, sells in red, by the company’s sector.

Related people

Michael HsingCEO · CEO at Monolithic Power Systems, filing Form 4 there in the last year
Robert W. Dean IIInterim CFO · Interim CFO at Monolithic Power Systems, filing Form 4 there in the last year
Kuo Wei Herbert ChangDirector · Director at Monolithic Power Systems, filing Form 4 there in the last year
Maurice SciammasEVP, WW Sales & Marketing · EVP, WW Sales & Marketing at Monolithic Power Systems, filing Form 4 there in the last year
Jeff ZhouDirector · Director at Monolithic Power Systems, filing Form 4 there in the last year
Ro KhannaRepresentative, CA-17 · Also traded MPWR in the last 90 days