WELLINGTON MANAGEMENT GROUP LLP

CIK

902219

City

Boston

State / Country

Stock

POWI — Power Integrations Inc

Top Portfolio Positions

1,690 positions · $527,586,893,040 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	133,857,990	$23,344,833,450	4.42%
MSFT	Microsoft Corp Technology	52,742,167	$19,523,567,954	3.70%
AAPL	Apple Inc. Technology	65,033,441	$16,504,836,987	3.13%
AVGO	Broadcom Inc. Technology	49,687,982	$15,378,927,305	2.91%
GOOGL	Alphabet Inc. Communication Services	47,620,485	$13,693,746,664	2.60%
AMZN	Amazon Com Inc Consumer Cyclical	62,407,139	$12,997,534,834	2.46%
LLY	ELI LILLY & Co Healthcare	13,427,061	$12,349,807,890	2.34%
MRK	Merck & Co., Inc. Healthcare	84,314,971	$10,142,247,857	1.92%
META	Meta Platforms, Inc. Communication Services	11,690,324	$6,688,385,065	1.27%
MA	Mastercard Inc Financial Services	13,001,582	$6,496,370,458	1.23%

Portfolio Trend

25 quarters · across all stocks

Holdings in POWI

Compact Export CSV

Shares Held

Position Value (USD)

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$171,835,031	3,356,153	+38.5%	Shares	Defined	2026-05-15
2025-12-31	$86,147,963	2,423,972	+7.2%	Shares	Defined	2026-02-17
2025-09-30	$90,926,105	2,261,281	+35.7%	Shares	Defined	2025-11-14
2025-06-30	$93,122,523	1,665,877	-4.9%	Shares	Defined	2025-08-14
2025-03-31	$88,421,409	1,750,919	-28.4%	Shares	Defined	2025-05-13
2024-12-31	$150,878,834	2,445,362	+4.5%	Shares	Defined	2025-02-12
2024-09-30	$150,061,830	2,340,328	+25.6%	Shares	Defined	2024-11-14
2024-06-30	$130,787,973	1,863,342	-5.3%	Shares	Defined	2024-08-14
2024-03-31	$140,847,032	1,968,512	-2.1%	Shares	Defined	2024-05-15
2023-12-31	$165,173,377	2,011,611	-11.6%	Shares	Defined	2024-02-12
2023-09-30	$173,679,191	2,275,969	+5.8%	Shares	Defined	2023-11-14
2023-06-30	$203,728,039	2,151,981	-11.9%	Shares	Defined	2023-08-14
2023-03-31	$206,828,164	2,443,622	-13.2%	Shares	Defined	2023-05-12
2022-12-31	$201,792,537	2,813,616	+9.9%	Shares	Defined	2023-02-13
2022-09-30	$164,678,045	2,560,293	+4.5%	Shares	Defined	2022-11-14
2022-06-30	$183,806,002	2,450,420	-1.9%	Shares	Defined	2022-08-15
2022-03-31	$231,419,826	2,496,977	+2.8%	Shares	Defined	2022-05-16
2021-12-31	$225,658,139	2,429,305	+0.8%	Shares	Defined	2022-02-11
2021-09-30	$238,521,353	2,409,550	-1.2%	Shares	Defined	2021-11-15
2021-06-30	$200,122,182	2,438,730	+4.0%	Shares	Defined	2021-08-16
2021-03-31	$191,102,945	2,345,397	+33.2%	Shares	Defined	2021-05-17
2020-12-31	$144,151,447	1,760,951	-2.6%	Shares	Defined	2021-02-12
2020-09-30	$100,156,662	1,807,882	+92.0%	Shares	Defined	2020-11-16
2020-06-30	$55,603,670	941,398	+11.9%	Shares	Defined	2020-08-14
2020-03-31	$37,166,437	841,536	—	Shares	Defined	2020-05-14
No 13F history on record for this holder in this stock.