Insider · CIK 0001308676

Hsing Michael

Reports to the SEC for 1 company · WEST PALM BEACH, FL

sec.gov

Transactions

Companies

Filings

CIK

0001308676

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-09-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−596 sh	$1323.31	−$789K	847,668
2026-09-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−2,949 sh	$1338.66	−$3.95M	841,487
2026-09-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−11K sh	$1351.43	−$14.8M	818,394
2026-09-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−6,343 sh	$1347.15	−$8.54M	829,361
2026-09-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−130 sh	$1356.94	−$176K	818,264
2026-09-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,111 sh	$1333.34	−$1.48M	844,436
2026-09-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−5,783 sh	$1343.76	−$7.77M	835,704
2026-09-28	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−2,121 sh	$1328.54	−$2.82M	845,547
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−6,688 sh	$1486.76	−$9.94M	857,464
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−352 sh	$1518.15	−$534K	848,393
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−3,424 sh	$1462.61	−$5.01M	884,839
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−3,769 sh	$1507.70	−$5.68M	849,296
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−5,819 sh	$1467.62	−$8.54M	879,020
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−608 sh	$1499.46	−$912K	855,994
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−4,082 sh	$1476.96	−$6.03M	869,889
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−551 sh	$1513.11	−$834K	848,745
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−5,737 sh	$1482.51	−$8.51M	864,152
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−5,049 sh	$1472.84	−$7.44M	873,971
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−2,929 sh	$1503.05	−$4.4M	853,065
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−130 sh	$1521.43	−$198K	848,263
2026-05-18	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−862 sh	$1491.48	−$1.29M	856,602
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−2,076 sh	$1168.80	−$2.43M	897,434
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−200 sh	$1173.39	−$235K	897,234
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−12.7K sh	$1155.71	−$14.7M	908,503
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−480 sh	$1180.79	−$567K	896,754
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−600 sh	$1194.34	−$717K	895,994
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−160 sh	$1188.23	−$190K	896,594
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,240 sh	$1210.11	−$1.5M	889,674
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−4,992 sh	$1159.84	−$5.79M	903,511
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−4,001 sh	$1164.92	−$4.66M	899,510
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,440 sh	$1200.81	−$1.73M	894,554
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−3,640 sh	$1205.82	−$4.39M	890,914
2026-02-12	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,440 sh	$1217.12	−$1.75M	888,234
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−649 sh	$1202.28	−$780K	921,234
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−14.6K sh	$1197.20	−$17.5M	921,883
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,542 sh	$1182.82	−$1.82M	944,644
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−2,104 sh	$1188.17	−$2.5M	942,540
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−6,079 sh	$1192.67	−$7.25M	936,461
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,987 sh	$1172.92	−$2.33M	948,985
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−2,799 sh	$1177.67	−$3.3M	946,186
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−363 sh	$1158.71	−$421K	953,871
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,366 sh	$1163.71	−$1.59M	952,505
2026-02-11	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,533 sh	$1167.62	−$1.79M	950,972
2026-02-10	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−694 sh	$1154.96	−$802K	955,754
2026-02-10	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−3,864 sh	$1145.90	−$4.43M	957,663
2026-02-10	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−1,215 sh	$1151.11	−$1.4M	956,448
2026-02-10	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−6,325 sh	$1136.75	−$7.19M	977,607
2026-02-10	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−4,302 sh	$1132.01	−$4.87M	983,932
2026-02-10	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−280 sh	$1197.26	−$335K	954,234
2026-02-10	MPWRMONOLITHIC POWER SYSTEMS, INC.S Sale	Director, CEO	SSale	−16.1K sh	$1141.88	−$18.4M	961,527

Recent filings

Accepted (ET)
Sep 304
Hsing Michael0001214659-26-012375
SEC(opens sec.gov)
May 204
Hsing Michael0001214659-26-006625
SEC(opens sec.gov)

Companies

MONOLITHIC POWER SYSTEMS, INC.Director, CEOMPWR

Address

1555 PALM BEACH LAKES BLVD.

WEST PALM BEACH, FL, 33401