Maurice Sciammas

CIK: 0001360833

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)79 (75.2%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (1.9%)

Compensation grants

Other (G, F, J, C, D, …)24 (22.9%)

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 (105 total)

MPWR
MONOLITHIC POWER SYSTEMS, INC.
Aug 4, 2026
Gift(G)
Indirect
25K shares-
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Aug 4, 2026
Gift(G)
Direct
25K shares-
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Aug 3, 2026
Sale(S)
Indirect
30 shares at avg. $1343.94$40K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
110 shares at avg. $1405.71$155K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
5.6K shares at avg. $1352.95$7.6M
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
464 shares at avg. $1329.30$617K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
117 shares at avg. $1400.45$164K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
213 shares at avg. $1396.16$297K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
1.9K shares at avg. $1344.16$2.5M
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
1.5K shares at avg. $1339.59$2.0M
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
776 shares at avg. $1334.59$1.0M
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
240 shares at avg. $1369.18$329K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
274 shares at avg. $1318.42$361K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
409 shares at avg. $1323.93$541K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
418 shares at avg. $1378.73$576K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
472 shares at avg. $1375.47$649K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
50 shares at avg. $1359.36$68K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
50 shares at avg. $1388.19$69K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
410 shares at avg. $1384.11$567K
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
1.5K shares at avg. $1348.91$2.0M
MPWR
MONOLITHIC POWER SYSTEMS, INC.
Jul 15, 2026
Sale(S)
Direct
527 shares at avg. $1314.03$692K
MPWR
MONOLITHIC POWER SYSTEMS INC
Jul 1, 2026
Sale(S)
Indirect
30 shares at avg. $1351.61$41K
MPWR
MONOLITHIC POWER SYSTEMS INC
Jun 1, 2026
Sale(S)
Indirect
30 shares at avg. $1533.95$46K
MPWR
MONOLITHIC POWER SYSTEMS INC
May 29, 2026
Gift(G)
Indirect
12.5K shares-
MPWR
MONOLITHIC POWER SYSTEMS INC
May 15, 2026
Sale(S)
Direct
2K shares at avg. $1567.15$3.2M

		Type	Shares	Price		Ownership
Aug 4, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Gift(G)	25,000	-	$0	Indirect
Aug 4, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Gift(G)	25,000	-	$0	Direct
Aug 3, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	30	$1343.94	$40,318	Indirect
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	110	$1405.71	$154,628	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	5,640	$1352.95	$7,630,638	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	464	$1329.30	$616,795	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	117	$1400.45	$163,853	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	213	$1396.16	$297,382	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	1,864	$1344.16	$2,505,514	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	1,460	$1339.59	$1,955,801	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	776	$1334.59	$1,035,642	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	240	$1369.18	$328,603	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	274	$1318.42	$361,247	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	409	$1323.93	$541,487	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	418	$1378.73	$576,309	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	472	$1375.47	$649,222	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	50	$1359.36	$67,968	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	50	$1388.19	$69,410	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	410	$1384.11	$567,485	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	1,506	$1348.91	$2,031,458	Direct
Jul 15, 2026	MPWR MONOLITHIC POWER SYSTEMS, INC.	Sale(S)	527	$1314.03	$692,494	Direct
Jul 1, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	30	$1351.61	$40,548	Indirect
Jun 1, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	30	$1533.95	$46,019	Indirect
May 29, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Gift(G)	12,472	-	$0	Indirect
May 15, 2026	MPWR MONOLITHIC POWER SYSTEMS INC	Sale(S)	2,020	$1567.15	$3,165,643	Direct

1-25 of 105 transactions

About Sciammas Maurice

Sciammas Maurice (SEC CIK 0001360833) files insider reports with the SEC as EVP, WW Sales & Marketing of MONOLITHIC POWER SYSTEMS, INC. (MPWR).

Signal8 holds 33 ownership filings by Sciammas Maurice, all Form 4s, filed between Oct 8, 2024 and Aug 6, 2026. Those filings report 105 transactions, from Oct 7, 2024 to Aug 4, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Sciammas Maurice's filings is in WEST PALM BEACH, FL.

Recent filings by Sciammas Maurice

Aug 4, 2026: Gifts of MPWR shares (2 lines, Form 4, code G).
Aug 3, 2026: Open-market sale of MPWR shares (Form 4, code S).
Jul 15, 2026: Open-market sales of MPWR shares (18 lines, Form 4, code S).
Jul 1, 2026: Open-market sale of MPWR shares (Form 4, code S).
Jun 1, 2026: Open-market sale of MPWR shares (Form 4, code S).

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

Balow Frank Anthony III, Chief Financial Officer
Tseng Saria, EVP & General Counsel
DEAN ROBERT W II, Interim CFO
CHANG KUO WEI HERBERT, Director
Zhou Jeff, Director
Hsing Michael, CEO

How to read Form 4 transaction codes