Insider · CIK 0001192171

CHANG KUO WEI HERBERT

Reports to the SEC for 4 companies · WEST PALM BEACH, FL

sec.gov

Transactions

Companies

Filings

CIK

0001192171

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-24	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−50 sh	$1281.57	−$64.1K	515
2026-08-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−50 sh	$1420.00	−$71K	565
2026-02-03	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+189 sh	—	—	615
2025-11-25	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$896.97	−$89.7K	426
2025-11-21	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$873.97	−$87.4K	526
2025-05-13	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−50 sh	$738.00	−$36.9K	626
2025-05-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$698.00	−$69.8K	676
2025-05-08	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$650.00	−$65K	776
2025-02-04	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+335 sh	—	—	876
2024-08-15	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$898.00	−$89.8K	541
2024-08-15	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$888.88	−$88.9K	641
2024-05-20	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−200 sh	$750.00	−$150K	741
2024-05-15	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$730.00	−$73K	1,041
2024-05-15	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$740.00	−$74K	941
2024-02-29	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−250 sh	$706.34	−$177K	1,141
2024-02-22	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−250 sh	$750.00	−$188K	1,391
2024-02-06	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+348 sh	—	—	1,641
2023-11-14	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−400 sh	$523.64	−$209K	1,293
2023-11-13	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$510.00	−$51K	1,693
2023-08-29	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−500 sh	$500.00	−$250K	1,793
2023-02-07	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+470 sh	—	—	2,293
2022-02-08	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+542 sh	—	—	2,356
2021-02-26	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−300 sh	$370.00	−$111K	1,281
2021-02-02	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+533 sh	—	—	1,581
2020-11-04	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−3,000 sh	$326.33	−$979K	1,048
2020-08-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−1,300 sh	$268.00	−$348K	4,048
2020-08-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−200 sh	$280.00	−$56K	5,348
2020-08-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−200 sh	$279.00	−$55.8K	5,548
2020-08-07	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$283.00	−$28.3K	5,748
2020-08-06	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−600 sh	$280.00	−$168K	5,848
2020-08-05	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−200 sh	$277.00	−$55.4K	6,448
2020-08-05	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−200 sh	$276.00	−$55.2K	6,648
2020-08-05	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−200 sh	$275.00	−$55K	6,848
2020-08-04	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$274.00	−$27.4K	7,148
2020-08-04	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−100 sh	$275.00	−$27.5K	7,048
2020-08-03	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−476 sh	$271.26	−$129K	7,248
2020-05-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−2,000 sh	$212.00	−$424K	7,724
2020-05-08	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−1,026 sh	$208.00	−$213K	9,724
2020-05-05	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−1,000 sh	$198.00	−$198K	10,750
2020-02-13	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−1,000 sh	$192.00	−$192K	11,750
2020-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+1,048 sh	—	—	12,750
2020-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−1,000 sh	$187.72	−$188K	11,702
2019-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+1,339 sh	—	—	12,702
2018-02-07	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+1,590 sh	—	—	11,363
2017-02-07	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+1,566 sh	—	—	9,773
2016-04-28	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+2,181 sh	—	—	8,207
2015-02-09	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+2,533 sh	—	—	6,026
2014-02-26	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−7,254 sh	$36.06	−$262K	2,358
2014-02-24	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director	SSale	−5,000 sh	$35.58	−$178K	9,612
2014-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.A Award	Director	AAward	+3,493 sh	—	—	14,612

Recent filings

Accepted (ET)
Aug 254
CHANG KUO WEI HERBERT0001214659-26-010853
SEC(opens sec.gov)
Aug 134
CHANG KUO WEI HERBERT0001214659-26-010101
SEC(opens sec.gov)
Feb 54
CHANG KUO WEI HERBERT0001214659-26-001260
SEC(opens sec.gov)
Nov 254
CHANG KUO WEI HERBERT0001214659-25-017235
SEC(opens sec.gov)
Nov 244
CHANG KUO WEI HERBERT0001214659-25-017110
SEC(opens sec.gov)
May 134
CHANG KUO WEI HERBERT0001214659-25-007514
SEC(opens sec.gov)
May 124
CHANG KUO WEI HERBERT0001214659-25-007421
SEC(opens sec.gov)
May 94
CHANG KUO WEI HERBERT0001214659-25-007331
SEC(opens sec.gov)
Feb 64
CHANG KUO WEI HERBERT0001214659-25-002114
SEC(opens sec.gov)
Aug 154
CHANG KUO WEI HERBERT0001214659-24-014809
SEC(opens sec.gov)
May 224
CHANG KUO WEI HERBERT0001214659-24-009810
SEC(opens sec.gov)
May 154
CHANG KUO WEI HERBERT0001214659-24-009375
SEC(opens sec.gov)
Feb 294
CHANG KUO WEI HERBERT0001214659-24-003785
SEC(opens sec.gov)
Feb 234
CHANG KUO WEI HERBERT0001214659-24-003399
SEC(opens sec.gov)
Feb 84
CHANG KUO WEI HERBERT0001214659-24-002143
SEC(opens sec.gov)
Nov 154
CHANG KUO WEI HERBERT0001214659-23-015229
SEC(opens sec.gov)
Nov 134
CHANG KUO WEI HERBERT0001214659-23-014897
SEC(opens sec.gov)
Aug 294
CHANG KUO WEI HERBERT0001214659-23-011786
SEC(opens sec.gov)

Companies

Address

1555 PALM BEACH LAKES BLVD.

WEST PALM BEACH, FL, 33401