InsiderTrades

Xiao Deming

SEC CIK 1308647 · EDGAR

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

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
MPWRMonolithic Power SystemsPres. of MPS Asia Ops 206.0K — $224.49M 792021-07-012026-05-06

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 79

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
M 2026-05-08 18:15 2026-05-06 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $1,654.55 -30.0K 206.0K -13% -$49.64M
2026-02-10 2026-02-06 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $1,171.16 -22.9K 235.9K -9% -$26.79M
2026-02-05 2026-02-03 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops A - Grant $0.00 +57.2K 258.8K +28% $0
2025-10-31 2025-10-30 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops F - Tax $1,096.63 -54.5K 201.6K -21% -$59.81M
2025-10-28 2025-10-25 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops A - Grant $0.00 +135.5K 256.2K +112% $0
2025-08-12 2025-08-11 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops G - Gift $0.00 -945 120.7K -0.8% $0
I 2025-08-12 2025-08-11 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops G - Gift $0.00 +945 4,336 +28% $0
2025-08-04 2025-08-01 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $780.00 -40.0K 121.6K -25% -$31.20M
2025-02-12 2025-02-10 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $717.10 -662 161.6K -0.4% -$474.7K
2024-11-13 2024-11-08 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $765.14 -866 162.2K -0.5% -$662.6K
I 2024-08-29 2024-08-27 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $950.00 -9,259 20.5K -31% -$8.80M
2024-08-22 2024-08-22 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops G - Gift $0.00 -8,968 163.1K -5% $0
I 2024-08-22 2024-08-22 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $950.00 -10.0K 29.7K -25% -$9.50M
I 2024-08-22 2024-08-22 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops G - Gift $0.00 +8,968 39.7K +29% $0
I 2024-08-21 2024-08-19 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops G - Gift $0.00 +30.3K 30.7K +6,657% $0
2024-08-21 2024-08-19 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops G - Gift $0.00 -30.3K 172.1K -15% $0
2024-08-12 2024-08-08 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $778.39 -859 202.4K -0.4% -$668.6K
2024-07-24 2024-07-22 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $831.58 -3,205 203.2K -2% -$2.67M
2024-05-22 2024-05-22 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $769.40 -1,300 206.4K -0.6% -$1.00M
2024-05-10 2024-05-10 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops G - Gift $0.00 -29 207.7K -0.0% $0
2024-05-09 2024-05-08 MPWR Monolithic Power Systems Xiao Deming EVP, Gbl Ops S - Sale $690.02 -869 207.7K -0.4% -$599.6K
2024-02-09 2024-02-08 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $680.00 -859 208.6K -0.4% -$584.1K
2024-02-07 2024-02-05 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $641.00 -982 209.4K -0.5% -$629.5K
M 2024-01-11 2024-01-10 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $589.35 -11.5K 220.7K -5% -$6.79M
2024-01-08 2024-01-04 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $583.14 -25.3K 221.9K -10% -$14.76M
2023-11-16 2023-11-14 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops G - Gift $0.00 -3,391 247.2K -1% $0
I 2023-11-16 2023-11-14 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops G - Gift $0.00 +3,391 3,391 New $0
2023-11-09 2023-11-08 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $490.39 -859 250.6K -0.3% -$421.2K
2023-11-07 2023-11-06 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $492.92 -982 251.5K -0.4% -$484.0K
2023-10-04 2023-10-02 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $458.30 -4,305 252.5K -2% -$1.97M
2023-08-10 2023-08-08 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $530.26 -874 256.8K -0.3% -$463.4K
2023-08-07 2023-08-04 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $526.53 -988 257.6K -0.4% -$520.2K
2023-07-25 2023-07-21 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $534.23 -9,615 258.6K -4% -$5.14M
2023-07-05 2023-07-03 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $537.79 -4,305 268.2K -2% -$2.32M
2023-05-10 2023-05-09 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $409.79 -857 272.6K -0.3% -$351.2K
2023-05-05 2023-05-04 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $459.60 -991 273.4K -0.4% -$455.5K
2023-05-04 2023-05-02 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops A - Grant $0.00 +8,685 277.9K +3% $0
2023-05-04 2023-05-03 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $463.55 -3,462 274.4K -1% -$1.60M
2023-04-06 2023-04-03 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $487.99 -4,360 269.2K -2% -$2.13M
2023-02-17 2023-02-15 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $530.00 -1,497 273.5K -0.5% -$793.4K
2023-02-13 2023-02-13 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $492.31 -1,639 275.0K -0.6% -$806.9K
2023-02-10 2023-02-09 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $520.00 -2,129 276.6K -0.8% -$1.11M
2023-02-10 2023-02-08 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $462.41 -6,922 278.8K -2% -$3.20M
2023-02-08 2023-02-07 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops A - Grant $0.00 +34.7K 285.7K +14% $0
2023-02-08 2023-02-06 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $446.88 -723 251.0K -0.3% -$323.1K
2023-01-25 2023-01-24 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $430.00 -10.2K 251.7K -4% -$4.40M
2023-01-17 2023-01-12 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $400.00 -2,980 261.9K -1% -$1.19M
2023-01-05 2023-01-03 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $344.96 -5,528 264.9K -2% -$1.91M
M 2022-11-16 2022-11-14+ MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $401.92 -3,762 270.4K -1% -$1.51M
2022-11-07 2022-11-04 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $343.98 -982 274.2K -0.4% -$337.8K
2022-10-04 2022-08-15 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops J - Other $414.43 +20 279.5K +0.0% +$8,289
2022-10-04 2022-10-03 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $372.60 -4,305 275.2K -2% -$1.60M
2022-08-12 2022-08-12 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $525.95 -1,633 279.5K -0.6% -$858.9K
2022-08-08 2022-08-04 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $522.39 -984 281.1K -0.3% -$514.0K
2022-07-06 2022-07-01 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $361.58 -4,515 282.1K -2% -$1.63M
2022-05-31 2022-05-27 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $457.00 -1,495 286.6K -0.5% -$683.2K
2022-05-26 2022-05-24 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $392.44 -4,298 288.1K -1% -$1.69M
2022-05-16 2022-05-12 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $388.10 -1,679 292.4K -0.6% -$651.6K
2022-05-05 2022-05-06 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $453.16 -986 294.1K -0.3% -$446.8K
2022-04-05 2022-02-16 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops G - Gift $0.00 -42 299.5K -0.0% $0
2022-04-05 2022-04-01 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $467.23 -4,420 295.0K -1% -$2.07M
2022-02-16 2022-02-14 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $429.60 -1,663 299.5K -0.6% -$714.4K
M 2022-02-09 2022-02-07+ MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $399.62 -9,093 301.1K -3% -$3.63M
2022-02-04 2022-02-03 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops A - Grant $0.00 +39.7K 310.2K +15% $0
2022-01-05 2022-01-03 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $490.87 -4,305 270.5K -2% -$2.11M
2021-12-02 2021-11-30 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $560.00 -4,366 274.8K -2% -$2.44M
2021-11-23 2021-11-22 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $580.00 -427 279.2K -0.2% -$247.7K
2021-11-16 2021-11-12 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $553.42 -1,625 279.6K -0.6% -$899.3K
2021-11-10 2021-11-08 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $548.27 -2,022 281.3K -0.7% -$1.11M
2021-10-05 2021-10-01 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops D - Sale to Iss $476.16 -4,330 283.3K -2% -$2.06M
2021-08-30 2021-08-30 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $500.00 -4,886 287.6K -2% -$2.44M
2021-08-26 2021-08-26 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $489.00 -6,495 292.5K -2% -$3.18M
2021-08-23 2021-08-19 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $462.00 -4,739 299.0K -2% -$2.19M
2021-08-23 2021-08-16 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops J - Other $323.24 +29 303.7K +0.0% +$9,374
2021-08-16 2021-08-12 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $457.10 -1,651 303.7K -0.5% -$754.7K
2021-08-11 2021-08-09 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $459.12 -2,053 305.3K -0.7% -$942.6K
M 2021-08-04 2021-08-02 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $455.09 -6,495 308.8K -2% -$2.96M
2021-07-06 2021-07-06 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $380.00 -7,734 309.0K -2% -$2.94M
2021-07-06 2021-07-01 MPWR Monolithic Power Systems Xiao Deming Pres. of MPS Asia Ops S - Sale $370.45 -4,305 316.8K -1% -$1.59M

Purchase Sale Sale after option exercise All abbreviations