Power Integrations POWI Institutional Ownership

NASDAQ POWI

$54.46 +2.96 (+5.75%)

At close: Oct 2, 2026 · 4:00 PM EDT

Institutions by Trading Activity

374 Institutions

Increased 218 58.3%

Unchanged 46 12.3%

Reduced 110 29.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

113.59%

▼-0.74 pp QoQ

Shares Held by Institutions

63.32Mn

of 55.75Mn outstanding

▲+4.09% QoQ

Shares Outstanding

55.75Mn

-7.58Mn held outside 13F filers

Institutional Investors

374

filed 13F for Jun 2026

▲+68 vs prior quarter

Net Shares Added (QoQ)

+2.49Mn

accumulated since last quarter

Value of Holdings

$3.45Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Power Integrations Inc (NASDAQ:POWI) was held by 374 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

Total shares held in POWI fell 0.21% from Q1 2026; the number of holders rose 9.36% from Q2 2025.
Among the 374 holders of Power Integrations, 218 added shares, 110 reduced their stakes and 46 left their positions unchanged.
Combined, institutional investors held 63.32Mn shares of POWI as of Q2 2026, down 135.78K from the prior quarter and up 8.29Mn from a year earlier.
As of June 30, 2026, the biggest holder of Power Integrations was BlackRock, Inc. with 8.72Mn shares.
The largest position increases in POWI for Q2 2026 were by American Century Companies Inc (+755.11K shares), Invesco Ltd. (+589.71K shares), T. Rowe Price Associates Inc (+528.46K shares), Robeco Schweiz AG (+470.23K shares) and Boston Trust Walden Corp (+304.87K shares).
Among holders that kept a stake in Power Integrations, the biggest sellers in Q2 2026 were Neuberger Berman Group LLC (-1.91Mn shares), Copeland Capital Management, LLC (-438.98K shares), JPMorgan Chase & Co (-414.12K shares), Snyder Capital Management L.P. (-337.56K shares) and Morgan Stanley (-309.5K shares).
Business Quant data shows the 10 biggest positions in Power Integrations as of Q2 2026 were held by BlackRock, Inc. (8.72Mn shares), Vanguard Portfolio Management LLC (5.19Mn shares), Wellington Management Group LLP (3.6Mn shares), State Street Corp (3.19Mn shares), Vanguard Capital Management LLC (2.51Mn shares), William Blair Investment Management, LLC (2.38Mn shares), Neuberger Berman Group LLC (2.02Mn shares), T. Rowe Price Associates Inc (1.92Mn shares), Disciplined Growth Investors Inc (1.89Mn shares) and Geode Capital Management, LLC (1.8Mn shares).

Form 13F Holdings

374 Institutional Holders

Report period 30 Jun, 2026

Total shares held 63.32Mn

Of outstanding 113.59%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	8,722,053	15.65%	▲200,304	+2.35%	$730.56Mn
2	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	5,190,284	9.31%	▲214,425	+4.31%	$434.74Mn
3	WELLINGTON MANAGEMENT GROUP LLP	0000902219	3,595,855	6.45%	▲239,702	+7.14%	$301.19Mn
4	State Street Corp	0000093751	3,194,155	5.73%	▲116,312	+3.78%	$267.49Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,511,196	4.50%	▲4,277	+0.17%	$210.34Mn
6	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	0001644956	2,382,007	4.27%	▲1,330	+0.06%	$199.52Mn
7	Neuberger Berman Group LLC	0001465109	2,020,390	3.62%	▼1,912,709	-48.63%	$169.23Mn
8	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	1,924,939	3.45%	▲528,456	+37.84%	$161.23K
9	DISCIPLINED GROWTH INVESTORS INC /MN	0001050442	1,891,864	3.39%	▼67,308	-3.44%	$158.46Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,803,038	3.23%	▲128,213	+7.66%	$151.04Mn
11	SNYDER CAPITAL MANAGEMENT L P	0001050477	1,766,507	3.17%	▼337,556	-16.04%	$147.96Mn
12	Robeco Schweiz AG	0001418427	1,340,404	2.40%	▲470,234	+54.04%	$112.27Mn
13	Morgan Stanley	0000895421	1,192,455	2.14%	▼309,505	-20.61%	$99.88Mn
14	Capital International Investors	0001562230	1,183,746	2.12%	▲71,356	+6.41%	$99.15Mn
15	DIMENSIONAL FUND ADVISORS LP	0000354204	1,085,077	1.95%	▲27,922	+2.64%	$90.87Mn
16	Nuveen, LLC	0001871926	1,020,059	1.83%	▼28,094	-2.68%	$85.44Mn
17	CONGRESS ASSET MANAGEMENT CO	0000897378	930,059	1.67%	▲930,059	0.00%	$77.90Mn
18	Copeland Capital Management, LLC	0001541743	882,810	1.58%	▼438,979	-33.21%	$73.94Mn
19	Boston Trust Walden Corp	0001534866	882,471	1.58%	▲304,866	+52.78%	$73.92Mn
20	Jpmorgan Chase & Co	0000019617	879,254	1.58%	▼414,121	-32.02%	$69.62Mn

Showing 1 to 20 of 374 holders