Deming Xiao

MPWR

Deming Xiao serves as officer: EVP, Global Operations at Monolithic Power Systems, Inc. (MPWR). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

61 trades

$178.54M

Net Position

Net Seller

$178.54M

Companies Traded

MPWR

Active Period

Apr 2021 – Feb 2026

61 total trades

Most Recent

Sell MPWR

Feb 10, 2026 · $26.79M

Deming Xiao's Insider Trading at Monolithic Power Systems, Inc. (MPWR)

Buys

0 · $0.00

Sells

50 · $157.86M

Total Shares Bought

Total Shares Sold

244,383

MPWR Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 10, 2026	Sell	22,875	$1171.17	$26.79M	235,932
Aug 4, 2025	Sell	39,999	$780.00	$31.20M	0
Feb 12, 2025	Sell	662	$717.10	$474.7K	0
Nov 13, 2024	Sell	866	$765.14	$662.6K	162,239
Aug 29, 2024	Sell	9,259	$950.00	$8.80M	20,455
Aug 22, 2024	Sell	10,000	$950.00	$9.50M	29,714
Aug 12, 2024	Sell	859	$778.39	$668.6K	202,354
Jul 24, 2024	Sell	3,205	$831.58	$2.67M	203,213
May 22, 2024	Sell	1,300	$769.40	$1.00M	206,418
May 9, 2024	Sell	869	$690.02	$599.6K	207,747
Feb 9, 2024	Sell	859	$680.00	$584.1K	208,580
Feb 7, 2024	Sell	982	$641.00	$629.5K	209,439
Jan 11, 2024	Sell	11,515	$589.35	$6.79M	221,436
Jan 8, 2024	Sell	25,314	$583.14	$14.76M	221,936
Nov 9, 2023	Sell	859	$490.39	$421.2K	250,641
Nov 7, 2023	Sell	982	$492.92	$484.0K	251,500
Oct 4, 2023	Sell	4,305	$458.30	$1.97M	252,482
Aug 10, 2023	Sell	874	$530.26	$463.4K	256,770
Aug 7, 2023	Sell	988	$526.53	$520.2K	257,644
Jul 25, 2023	Sell	9,615	$534.23	$5.14M	258,632
Jul 5, 2023	Sell	4,305	$537.79	$2.32M	268,247
May 10, 2023	Sell	857	$409.79	$351.2K	272,552
May 5, 2023	Sell	991	$459.60	$455.5K	273,409
May 4, 2023	Sell	3,462	$463.55	$1.60M	274,400
Apr 6, 2023	Sell	4,360	$487.99	$2.13M	269,177
Feb 17, 2023	Sell	1,497	$530.00	$793.4K	273,537
Feb 13, 2023	Sell	1,639	$492.31	$806.9K	275,004
Feb 10, 2023	Sell	9,051	$475.96	$4.31M	278,772
Feb 8, 2023	Sell	723	$446.88	$323.1K	250,954
Jan 25, 2023	Sell	10,243	$430.00	$4.40M	251,677
Jan 17, 2023	Sell	2,980	$400.00	$1.19M	261,920
Jan 5, 2023	Sell	5,528	$344.96	$1.91M	264,900
Nov 16, 2022	Sell	3,762	$401.92	$1.51M	272,805
Nov 7, 2022	Sell	982	$343.98	$337.8K	274,190
Oct 4, 2022	Sell	4,305	$372.60	$1.60M	275,172
Aug 12, 2022	Sell	1,633	$525.95	$858.9K	279,457
Aug 8, 2022	Sell	984	$522.39	$514.0K	281,090
Jul 6, 2022	Sell	4,515	$361.58	$1.63M	282,074
May 31, 2022	Sell	1,495	$457.00	$683.2K	286,589
May 26, 2022	Sell	4,298	$392.44	$1.69M	288,084
May 16, 2022	Sell	1,679	$388.10	$651.6K	292,382
May 5, 2022	Sell	986	$453.16	$446.8K	294,061
Apr 5, 2022	Sell	4,420	$467.23	$2.07M	295,047
Feb 16, 2022	Sell	1,663	$429.60	$714.4K	299,475
Feb 9, 2022	Sell	9,093	$399.62	$3.63M	302,838
Jan 5, 2022	Sell	4,305	$490.87	$2.11M	270,532
Dec 2, 2021	Sell	4,366	$560.00	$2.44M	274,837
Nov 23, 2021	Sell	427	$580.00	$247.7K	279,203
Nov 16, 2021	Sell	1,625	$553.42	$899.3K	279,630
Nov 10, 2021	Sell	2,022	$548.27	$1.11M	281,255