InsiderTrades

Sciammas Maurice

SEC CIK 1360833 · EDGAR

Buying vs selling by month open-market trades, last 60 months, MPWR
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
MPWRMonolithic Power SystemsSVPof Sales, Marketing 126.6K — $227.96M 922021-05-142026-08-04

Most active insiders at MPWR, 12 months

#InsiderTitleBoughtSold
1 Hsing MichaelCEO, Dir —$314.44M
2 Tseng SariaEVP, GC —$150.90M
3 Sciammas MauriceEVP, WW Sales, Marketing —$101.39M
4 Xiao DemingEVP, Gbl Ops —$76.43M
5 BLEGEN THEODOREEVP, CFO —$40.19M
6 Elmiger Eugen JDir —$19.02M
7 Zhou JeffDir —$3.25M
8 Lee Victor KDir —$2.00M
9 Wynne EileenDir —$530.2K
10 CHANG KUO WEI HERBERTDir —$312.2K

Transactions 92

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-08-06 20:31 2026-08-04 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 -25.0K 126.6K -16% $0
I 2026-08-06 20:31 2026-08-04 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 +25.0K 36.1K +226% $0
TI 2026-08-05 17:33 2026-08-03 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,343.94 -30 1,119 -3% -$40.3K
MT 2026-07-17 17:43 2026-07-15 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,349.73 -15.0K 151.6K -9% -$20.25M
TI 2026-07-06 17:51 2026-07-01 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,351.61 -30 1,149 -3% -$40.5K
TI 2026-06-03 17:31 2026-06-01 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,533.95 -30 1,179 -2% -$46.0K
I 2026-06-02 18:36 2026-05-29 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 -12.5K 12.6K -50% $0
MT 2026-05-19 19:09 2026-05-15 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,561.40 -12.0K 166.6K -7% -$18.74M
MI 2026-05-15 19:45 2026-05-13 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 0 51.0K New $0
I 2026-05-06 15:18 2026-05-05 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,583.81 -380 919 -29% -$601.8K
TI 2026-05-06 12:55 2026-05-04 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,588.73 -30 1,209 -2% -$47.7K
TI 2026-04-03 15:58 2026-04-01 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,116.44 -30 1,239 -2% -$33.5K
I 2026-03-24 2026-03-20 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,095.07 -30 1,269 -2% -$32.9K
I 2026-02-12 2026-02-11 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,179.98 -200 1,299 -13% -$236.0K
2026-02-10 2026-02-06 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $1,171.16 -22.9K 178.6K -11% -$26.79M
2026-02-05 2026-02-03 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing A - Grant $0.00 +57.2K 201.5K +40% $0
2025-11-25 2025-11-24 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $895.23 -3,976 144.3K -3% -$3.56M
M 2025-11-20 2025-11-19 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $870.21 -7,034 178.7K -4% -$6.12M
M 2025-11-20 2025-11-19 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $881.66 -28.0K 165.3K -14% -$24.66M
MI 2025-11-14 2025-11-13 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 0 26.7K New $0
I 2025-11-06 2025-11-05 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $986.81 -200 1,299 -13% -$197.4K
2025-10-31 2025-10-30 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing F - Tax $1,096.63 -54.5K 183.3K -23% -$59.81M
2025-10-28 2025-10-25 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing A - Grant $0.00 +135.5K 237.8K +132% $0
MI 2025-08-21 2025-08-19 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 -1,000 12.2K -8% $0
MI 2025-08-08 2025-08-06 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 0 44.9K New $0
MI 2025-05-30 2025-05-28 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 0 15.7K New $0
I 2025-05-12 2025-05-12 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $701.00 -12.0K 4,015 -75% -$8.41M
MI 2025-05-09 2025-05-09 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 0 17.2K New $0
MI 2025-02-20 2025-02-18 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 0 19.1K New $0
MI 2025-02-13 2025-02-11 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 0 37.1K New $0
2025-02-12 2025-02-10 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $717.10 -662 102.3K -0.6% -$474.7K
MI 2025-02-11 2025-02-07 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $701.98 -7,000 17.5K -29% -$4.91M
2024-11-13 2024-11-08 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $765.14 -866 103.0K -0.8% -$662.6K
M 2024-10-08 2024-10-07 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $929.59 -11.0K 114.6K -9% -$10.23M
2024-08-12 2024-08-08 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $778.39 -859 114.8K -0.7% -$668.6K
2024-07-24 2024-07-22 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $831.58 -3,205 115.7K -3% -$2.67M
M 2024-07-10 2024-07-08 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $843.83 -11.0K 119.0K -8% -$9.28M
MI 2024-05-15 2024-05-13 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing G - Gift $0.00 0 13.4K New $0
2024-05-09 2024-05-08 MPWR Monolithic Power Systems Sciammas Maurice EVP, WW Sales, Marketing S - Sale $690.00 -869 129.9K -0.7% -$599.6K
M 2024-04-09 2024-04-08 MPWR Monolithic Power Systems Sciammas Maurice EVP of Sales, Marketing S - Sale $681.83 -11.0K 138.0K -7% -$7.50M
MI 2024-04-03 2024-04-01 MPWR Monolithic Power Systems Sciammas Maurice EVP of Sales, Marketing G - Gift $0.00 0 27.0K New $0
2024-02-09 2024-02-08 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $680.00 -859 141.7K -0.6% -$584.1K
2024-02-07 2024-02-05 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $641.00 -982 142.6K -0.7% -$629.5K
M 2024-01-12 2024-01-12 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $582.11 -11.0K 146.7K -7% -$6.40M
2024-01-08 2024-01-04 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $583.14 -27.7K 154.6K -15% -$16.13M
2023-11-09 2023-11-08 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $490.39 -859 182.2K -0.5% -$421.2K
2023-11-07 2023-11-06 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $492.92 -982 183.1K -0.5% -$484.0K
2023-10-04 2023-10-02 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $458.30 -4,305 184.1K -2% -$1.97M
2023-08-10 2023-08-08 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $530.26 -874 188.3K -0.5% -$463.4K
2023-08-07 2023-08-04 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $526.52 -988 189.2K -0.5% -$520.2K
2023-07-25 2023-07-21 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $534.23 -9,843 190.2K -5% -$5.26M
2023-07-05 2023-07-03 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $537.79 -4,305 200.0K -2% -$2.32M
2023-05-10 2023-05-09 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $409.78 -857 204.3K -0.4% -$351.2K
2023-05-05 2023-05-04 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $459.60 -991 205.2K -0.5% -$455.5K
2023-05-04 2023-05-03 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $463.55 -3,462 206.2K -2% -$1.60M
2023-05-04 2023-05-02 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing A - Grant $0.00 +8,685 209.7K +4% $0
2023-04-06 2023-04-03 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $487.99 -4,360 201.0K -2% -$2.13M
M 2023-02-17 2023-02-15 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $519.54 -13.0K 212.4K -6% -$6.75M
2023-02-13 2023-02-13 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $492.31 -1,639 218.3K -0.7% -$806.9K
2023-02-10 2023-02-08 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $462.41 -6,922 220.0K -3% -$3.20M
2023-02-08 2023-02-06 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $446.87 -723 192.1K -0.4% -$323.1K
2023-02-08 2023-02-07 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing A - Grant $0.00 +34.7K 226.9K +18% $0
MI 2023-01-05 2022-12-15 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing G - Gift $0.00 0 19.5K New $0
2023-01-05 2023-01-03 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $344.96 -5,528 192.9K -3% -$1.91M
2022-11-25 2022-11-22 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $369.27 -5,200 198.4K -3% -$1.92M
M 2022-11-16 2022-11-14+ MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $392.88 -1,664 203.9K -0.8% -$653.7K
2022-11-09 2022-11-07 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $355.74 -4,000 205.2K -2% -$1.42M
2022-11-07 2022-11-04 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $343.98 -982 209.2K -0.5% -$337.8K
2022-10-04 2022-10-03 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $372.60 -4,305 210.2K -2% -$1.60M
2022-08-12 2022-08-12 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $525.95 -1,633 214.5K -0.8% -$858.9K
M 2022-08-08 2022-08-04 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $529.61 -5,184 216.2K -2% -$2.75M
2022-07-06 2022-07-01 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $361.58 -4,515 221.4K -2% -$1.63M
MI 2022-05-16 2022-05-09 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing G - Gift $0.00 +40.7K 22.6K New $0
2022-05-16 2022-05-09 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing G - Gift $0.00 -40.7K 227.5K -15% $0
2022-05-16 2022-05-12 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $388.10 -1,679 225.9K -0.7% -$651.6K
MI 2022-05-05 2022-04-01 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing G - Gift $0.00 0 1,699 New $0
2022-05-05 2022-05-04 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $453.16 -986 268.2K -0.4% -$446.8K
2022-04-05 2022-04-01 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $467.23 -4,420 269.2K -2% -$2.07M
2022-02-16 2022-02-14 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $429.60 -1,663 273.6K -0.6% -$714.4K
M 2022-02-09 2022-02-07+ MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $399.60 -9,844 275.3K -3% -$3.93M
2022-02-04 2022-02-03 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing A - Grant $0.00 +39.7K 285.1K +16% $0
2022-01-05 2022-01-03 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $490.87 -4,305 245.4K -2% -$2.11M
MI 2021-11-16 2021-11-15 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing G - Gift $0.00 +22.6K 11.3K New $0
2021-11-16 2021-11-15 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing G - Gift $0.00 -22.6K 249.7K -8% $0
2021-11-16 2021-11-12 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $553.42 -1,625 272.3K -0.6% -$899.3K
2021-11-10 2021-11-08 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $548.27 -2,022 278.8K -0.7% -$1.11M
2021-10-05 2021-10-01 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $476.16 -4,330 276.0K -2% -$2.06M
2021-08-16 2021-08-12 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $457.10 -1,651 280.3K -0.6% -$754.7K
2021-08-11 2021-08-09 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $459.12 -2,053 282.0K -0.7% -$942.6K
M 2021-07-06 2021-05-14+ MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing G - Gift $0.00 -18.0K 297.3K -6% $0
MI 2021-07-06 2021-05-14+ MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing G - Gift $0.00 +18.0K 2,000 New $0
2021-07-06 2021-07-01 MPWR Monolithic Power Systems Sciammas Maurice SVPof Sales, Marketing S - Sale $370.45 -4,305 284.0K -1% -$1.59M

Purchase Sale Sale after option exercise All abbreviations