Power Integrations Inc

POWI

Exchange: Nasdaq
Industry: Semiconductors & Related Devices
SEC CIK: 0000833640

SEC filings (opens in a new tab)

In the last 90 days, Power Integrations Inc insiders filed 0 open-market purchases and 1 sale; 373 institutions reported holding it in 13F filings for Q2 2026, worth $5.24B in total; no superinvestor holds it.

Q3 2021 vs. Q2 2021

How the institutions holding Power Integrations Inc changed between Q2 2021 and Q3 2021.

All holders in Q3 2021 All holders in Q2 2021

13F holders of POWI: Q2 2021 compared with Q3 2021
Measure	Q2 2021	Of which not filed for Q3 2021	Q3 2021	Change
Holders	297	2	330	+35
Shares	58.5M	4.25K	58.4M	−114.1K (−0.2%)
Value	$4.80B	$348.0K	$5.78B	+$975.9M (+20.3%)

2 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (58)

Institutions that held Power Integrations Inc at the end of Q3 2021 but not at the end of Q2 2021.

Institutions new to POWI in Q3 2021
Institution	Shares	Value	% of portfolio
William Blair Investment Management, LLC	170,219	$16.9M	0.05%
Daiwa Securities Group Inc.	87,500	$8.66M	0.06%
EAM Investors, LLC	26,597	$2.63M	0.44%
Maryland State Retirement & Pension System	23,723	$2.42M	0.07%
Canada Pension Plan Investment Board	23,000	$2.28M	0.00%
Mirae Asset Global Investments Co., Ltd.	22,184	$2.20M	0.01%
CIBC Private Wealth Group, LLC	21,201	$2.10M	0.00%
Liontrust Investment Partners LLP	21,000	$2.08M	0.03%
Aviva PLC	15,540	$1.54M	0.01%
Twin Tree Management, LP	10,597	$1.05M	0.03%
Trexquant Investment LP	10,004	$990.0K	0.08%
Gotham Asset Management, LLC	9,053	$896.0K	0.04%
Virginia Retirement Systems Et Al	8,900	$881.0K	0.01%
Algert Global LLC	8,704	$862.0K	0.11%
O'Shares Investment Advisers, LLC	4,907	$486.0K	0.04%
Quantitative Investment Management, LLC	4,844	$479.0K	0.04%
Aigen Investment Management, LP	4,771	$472.0K	0.09%
Versor Investments LP	4,647	$460.0K	0.01%
O'Neil Global Advisors, Inc.	4,403	$436.0K	0.33%
Quantinno Capital Management LP	4,305	$426.0K	0.48%
Twinbeech Capital LP	4,129	$409.0K	0.03%
Pictet Asset Management SA	4,000	$396.0K	0.00%
Ethic Inc.	3,883	$384.0K	0.04%
Fox Run Management, L.L.C.	3,726	$369.0K	0.23%
PDT Partners, LLC	3,600	$356.0K	0.03%
Mackenzie Financial Corp	3,532	$350.0K	0.00%
Blueshift Asset Management, LLC	3,529	$349.0K	0.02%
Shell Asset Management Co	2,936	$291.0K	0.01%
Juncture Wealth Strategies, LLC	2,757	$273.0K	0.14%
Ellevest, Inc.	2,745	$272.0K	0.03%
First Citizens Bank & Trust Co	2,720	$269.0K	0.01%
CIBC Asset Management Inc	2,500	$247.0K	0.00%
Personal Cfo Solutions, LLC	2,469	$244.0K	0.05%
Creative Planning	2,388	$236.0K	0.00%
Royce & Associates LP	2,378	$235.0K	0.00%
Sciencast Management LP	2,359	$235.0K	0.07%
Raymond James Financial Services Advisors, Inc.	2,333	$231.0K	0.00%
Milestone Advisory Partners	2,332	$231.0K	0.14%
Navellier & Associates Inc	2,295	$227.0K	0.03%
Fulton Bank, N.A.	2,227	$220.0K	0.01%
Keebeck Alpha, LP	2,204	$218.0K	0.07%
Bruderman Asset Management, LLC	2,163	$214.0K	0.05%
Advisor Partners LLC	2,151	$213.0K	0.01%
Oppenheimer & Co Inc	2,100	$208.0K	0.00%
Veritable, L.P.	2,086	$206.0K	0.00%
Virtu Financial LLC	2,019	$200.0K	0.02%
Advisors Asset Management, Inc.	548	$54.0K	0.00%
Pinz Capital Management, LP	500	$50.0K	0.02%
C M Bidwell & Associates Ltd	421	$42.0K	0.03%
West Oak Capital, LLC	350	$35.0K	0.01%
First Quadrant L P	238	$24.0K	0.00%
Newbridge Financial Services Group, Inc.	150	$15.0K	0.01%
Manchester Capital Management LLC	110	$11.0K	0.00%
Bell Investment Advisors, Inc	28	$3.00K	0.00%
Vigilant Capital Management, LLC	20	$2.00K	0.00%
Kowal Investment Group, LLC	24	$2.00K	0.00%
Raffa Wealth Management, LLC	3	$297	0.00%
Meridian Wealth Partners, LLC	2	$0	0.00%

Sold out (23)

Institutions that held Power Integrations Inc at the end of Q2 2021 and filed for Q3 2021 without it.

Institutions that sold out of POWI in Q3 2021
Institution	Shares, Q2 2021	Value, Q2 2021
Cavalry Management Group, LLC	215,161	$17.7M
Healthcare of Ontario Pension Plan Trust Fund	82,200	$6.75M
Premier Fund Managers Ltd	52,298	$4.34M
Arrowstreet Capital, Limited Partnership	24,100	$1.98M
Atom Investors LP	24,018	$1.97M
Paloma Partners Management Co	12,763	$1.05M
Magnetar Financial LLC	6,490	$533.0K
Verition Fund Management LLC	5,712	$469.0K
Quadrature Capital Ltd	5,310	$436.0K
Caxton Associates LP	4,453	$365.0K
Panagora Asset Management Inc	4,289	$352.0K
Corient Capital Partners, LLC	3,174	$260.0K
Capula Management Ltd	3,036	$249.0K
Walleye Trading LLC	2,464	$202.0K
Centiva Capital, LP	2,464	$202.0K
Point72 Hong Kong Ltd	2,430	$199.0K
FORA Capital, LLC	1,371	$113.0K
Dark Forest Capital Management LP	371	$30.0K
Advisory Services Network, LLC	131	$11.0K
Savior LLC	108	$9.00K
KB Financial Partners, LLC	99	$8.00K
Arkadios Wealth Advisors	50	$4.00K
Enterprise Financial Services Corp	10	$1.00K

Not filed for Q3 2021 yet (2)

Institutions that held Power Integrations Inc at the end of Q2 2021 and haven't filed a 13F for Q3 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding POWI in Q2 2021 that haven't filed for Q3 2021
Institution	Shares, Q2 2021	Value, Q2 2021
Pictet Asset Management Ltd	4,000	$328.0K
CWM, LLC	245	$20.0K