Saria Tseng

CIK: 0001312593

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)69 (89.6%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (2.6%)

Compensation grants

Other (G, F, J, C, D, …)6 (7.8%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MPWR

MONOLITHIC POWER SYSTEMS, INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (77 total)

MPWR
MONOLITHIC POWER SYSTEMS, INC.
Aug 31, 2026
Gift(G)
Indirect
2K shares-
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Aug 31, 2026
Gift(G)
Direct
2K shares-
MPWR
MONOLITHIC POWER SYSTEMS INC
May 27, 2026
Sale(S)
Direct
7.6K shares at avg. $1700.00$12.9M
MPWR
MONOLITHIC POWER SYSTEMS INC
May 22, 2026
Sale(S)
Direct
5K shares at avg. $1586.43$7.9M
MPWR
MONOLITHIC POWER SYSTEMS INC
May 22, 2026
Gift(G)
Direct
200 shares-
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
840 shares at avg. $1319.25$1.1M
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
800 shares at avg. $1302.52$1.0M
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
120 shares at avg. $1321.94$159K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
360 shares at avg. $1270.29$457K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
560 shares at avg. $1266.48$709K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
240 shares at avg. $1279.55$307K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
400 shares at avg. $1292.08$517K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
1.3K shares at avg. $1308.30$1.7M
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
4.2K shares at avg. $1312.82$5.6M
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 8, 2026
Sale(S)
Direct
120 shares at avg. $1287.12$154K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 6, 2026
Sale(S)
Direct
244 shares at avg. $1139.96$278K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 6, 2026
Sale(S)
Direct
2K shares at avg. $1170.38$2.4M
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 6, 2026
Sale(S)
Direct
1.7K shares at avg. $1176.35$2.0M
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 6, 2026
Sale(S)
Direct
480 shares at avg. $1149.05$552K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 6, 2026
Sale(S)
Direct
560 shares at avg. $1159.62$649K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 6, 2026
Sale(S)
Direct
1.4K shares at avg. $1179.50$1.6M
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 6, 2026
Sale(S)
Direct
556 shares at avg. $1144.42$636K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 6, 2026
Sale(S)
Direct
684 shares at avg. $1165.66$797K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 1, 2026
Sale(S)
Direct
292 shares at avg. $1136.99$332K
MPWR
MONOLITHIC POWER SYSTEMS INC
Apr 1, 2026
Sale(S)
Direct
160 shares at avg. $1134.14$181K

		Type	Shares	Price		Ownership
Aug 31, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Gift(G)	2,000	-	$0	Indirect
Aug 31, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Gift(G)	2,000	-	$0	Direct
May 27, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	7,565	$1700.00	$12,860,500	Direct
May 22, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	5,000	$1586.43	$7,932,150	Direct
May 22, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Gift(G)	200	-	$0	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	840	$1319.25	$1,108,170	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	800	$1302.52	$1,042,016	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	120	$1321.94	$158,633	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	360	$1270.29	$457,304	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	560	$1266.48	$709,229	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	240	$1279.55	$307,092	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	400	$1292.08	$516,832	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	1,279	$1308.30	$1,673,316	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	4,244	$1312.82	$5,571,608	Direct
Apr 8, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	120	$1287.12	$154,454	Direct
Apr 6, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	244	$1139.96	$278,150	Direct
Apr 6, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	2,036	$1170.38	$2,382,894	Direct
Apr 6, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	1,680	$1176.35	$1,976,268	Direct
Apr 6, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	480	$1149.05	$551,544	Direct
Apr 6, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	560	$1159.62	$649,387	Direct
Apr 6, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	1,396	$1179.50	$1,646,582	Direct
Apr 6, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	556	$1144.42	$636,298	Direct
Apr 6, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	684	$1165.66	$797,311	Direct
Apr 1, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	292	$1136.99	$332,001	Direct
Apr 1, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	160	$1134.14	$181,462	Direct

1-25 of 77 transactions

About Tseng Saria

Tseng Saria (SEC CIK 0001312593) files insider reports with the SEC as EVP & General Counsel of MONOLITHIC POWER SYSTEMS, INC. (MPWR).

Signal8 holds 19 ownership filings by Tseng Saria, all Form 4s, filed between Nov 13, 2024 and Sep 2, 2026. Those filings report 77 transactions, from Nov 8, 2024 to Aug 31, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Tseng Saria's filings is in WEST PALM BEACH, FL.

Recent filings by Tseng Saria

Aug 31, 2026: Gifts of MPWR shares (2 lines, Form 4, code G).
May 27, 2026: Open-market sale of MPWR shares (Form 4, code S).
May 22, 2026: Open-market sale of MPWR shares (Form 4, code S).
May 22, 2026: Gift of MPWR shares (Form 4, code G).
Apr 8, 2026: Open-market sales of MPWR shares (10 lines, Form 4, code S).

Other insiders filing for MONOLITHIC POWER SYSTEMS, INC. (MPWR)

Balow Frank Anthony III, Chief Financial Officer
DEAN ROBERT W II, Interim CFO
CHANG KUO WEI HERBERT, Director
Sciammas Maurice, EVP, WW Sales & Marketing
Zhou Jeff, Director
Hsing Michael, CEO

How to read Form 4 transaction codes