There is a long list of 340 institutional holders of POWI within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of POWI by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-POWI table below, the initial column indicates the name of each top institutional holder of POWI, with a link to that fund's top holdings. The next columns indicate the amount of POWI stock held by each of the institutional holders of POWI, followed by the POWI position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	7,411,173	$608,531	12/31/2023
POWI	7,411,173	$608,531	12/31/2023
Vanguard Group Inc.	6,423,530	$527,436	12/31/2023
POWI	6,423,530	$527,436	12/31/2023
Neuberger Berman Group LLC	3,273,389	$268,778	12/31/2023
POWI	3,273,389	$268,778	12/31/2023
State Street Corp	2,445,255	$200,780	12/31/2023
POWI	2,445,255	$200,780	12/31/2023
JPMorgan Chase & Co.	2,445,248	$200,779	12/31/2023
POWI	2,445,248	$200,779	12/31/2023
Disciplined Growth Investors Inc. MN	2,039,868	$167,494	12/31/2023
POWI	2,039,868	$167,494	12/31/2023
Wellington Management Group LLP	2,011,611	$165,173	12/31/2023
POWI	2,011,611	$165,173	12/31/2023
Geode Capital Management LLC	1,423,034	$116,857	12/31/2023
POWI	1,423,034	$116,857	12/31/2023
Capital International Investors	1,236,159	$101,501	12/31/2023
POWI	1,236,159	$101,501	12/31/2023
Dimensional Fund Advisors LP	1,150,749	$94,490	12/31/2023
POWI	1,150,749	$94,490	12/31/2023
Bank of New York Mellon Corp	1,246,223	$89,167	03/31/2024
POWI	1,246,223	$89,167	03/31/2024
Macquarie Group Ltd.	1,022,476	$83,956	12/31/2023
POWI	1,022,476	$83,956	12/31/2023
Morgan Stanley	1,004,586	$82,487	12/31/2023
POWI	1,004,586	$82,487	12/31/2023
Northern Trust Corp	924,852	$75,940	12/31/2023
POWI	924,852	$75,940	12/31/2023
Brown Advisory Inc.	1,031,872	$73,830	03/31/2024
POWI	1,031,872	$73,830	03/31/2024
Copeland Capital Management LLC	987,372	$70,646	03/31/2024
POWI	987,372	$70,646	03/31/2024
Invesco Ltd.	851,901	$69,950	12/31/2023
POWI	851,901	$69,950	12/31/2023
Snyder Capital Management L P	743,261	$66,201	12/31/2023
POWI	743,261	$66,201	12/31/2023
Robecosam AG	844,690	$60,438	03/31/2024
POWI	844,690	$60,438	03/31/2024
Charles Schwab Investment Management Inc.	719,948	$59,115	12/31/2023
POWI	719,948	$59,115	12/31/2023
Boston Trust Walden Corp	792,180	$56,680	03/31/2024
POWI	792,180	$56,680	03/31/2024
Ceredex Value Advisors LLC	647,590	$53,174	12/31/2023
POWI	647,590	$53,174	12/31/2023
Millennium Management LLC	621,360	$51,020	12/31/2023
POWI	621,360	$51,020	12/31/2023
Stephens Investment Management Group LLC	597,656	$49,074	12/31/2023
POWI	597,656	$49,074	12/31/2023
Riverbridge Partners LLC	630,303	$45,098	03/31/2024
POWI	630,303	$45,098	03/31/2024
T. Rowe Price Investment Management Inc.	545,433	$44,786	12/31/2023
POWI	545,433	$44,786	12/31/2023
Vontobel Holding Ltd.	521,360	$42,809	12/31/2023
POWI	521,360	$42,809	12/31/2023
Fiera Capital Corp	506,921	$41,623	12/31/2023
POWI	506,921	$41,623	12/31/2023
Price T Rowe Associates Inc. MD	502,712	$41,279	12/31/2023
POWI	502,712	$41,279	12/31/2023
American Century Companies Inc.	492,966	$40,477	12/31/2023
POWI	492,966	$40,477	12/31/2023
Kodai Capital Management LP	480,657	$39,467	12/31/2023
POWI	480,657	$39,467	12/31/2023
Norges Bank	455,783	$37,424	12/31/2023
POWI	455,783	$37,424	12/31/2023
Congress Asset Management Co. MA	487,506	$34,881	03/31/2024
POWI	487,506	$34,881	03/31/2024
Ameriprise Financial Inc.	380,582	$31,250	12/31/2023
POWI	380,582	$31,250	12/31/2023
Loomis Sayles & Co. L P	358,303	$29,421	12/31/2023
POWI	358,303	$29,421	12/31/2023
Bank of America Corp DE	341,231	$28,019	12/31/2023
POWI	341,231	$28,019	12/31/2023
First Trust Advisors LP	313,415	$25,735	12/31/2023
POWI	313,415	$25,735	12/31/2023
Federated Hermes Inc.	311,010	$25,537	12/31/2023
POWI	311,010	$25,537	12/31/2023
Goldman Sachs Group Inc.	306,402	$25,159	12/31/2023
POWI	306,402	$25,159	12/31/2023
William Blair Investment Management LLC	286,185	$23,499	12/31/2023
POWI	286,185	$23,499	12/31/2023
Nicholas Company Inc.	262,580	$21,560	12/31/2023
POWI	262,580	$21,560	12/31/2023
Public Employees Retirement Association of Colorado	260,951	$21,427	12/31/2023
POWI	260,951	$21,427	12/31/2023
Rhumbline Advisers	242,837	$19,939	12/31/2023
POWI	242,837	$19,939	12/31/2023
Tributary Capital Management LLC	270,291	$19,339	03/31/2024
POWI	270,291	$19,339	03/31/2024
Citadel Advisors LLC		$18,882	12/31/2023
POWI	219,863	$18,053	12/31/2023
Call	13,000	$1,067	12/31/2023
Put	2,900	$238	12/31/2023
Principal Financial Group Inc.	228,625	$18,772	12/31/2023
POWI	228,625	$18,772	12/31/2023
Voya Investment Management LLC	220,114	$18,074	12/31/2023
POWI	220,114	$18,074	12/31/2023
Envestnet Asset Management Inc.	218,617	$17,951	12/31/2023
POWI	218,617	$17,951	12/31/2023
Balyasny Asset Management LLC	216,872	$17,807	12/31/2023
POWI	216,872	$17,807	12/31/2023
ProShare Advisors LLC	204,118	$16,760	12/31/2023
POWI	204,118	$16,760	12/31/2023