Power Integrations POWI Institutional Ownership

NASDAQ POWI

$52.28 +2.59 (+5.21%)

At close: Sep 11, 2026 · 4:00 PM EDT

Institutions by Trading Activity

373 Institutions

Increased 217 58.2%

Unchanged 46 12.3%

Reduced 110 29.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

113.58%

▼-1.16 pp QoQ

Shares Held by Institutions

63.32Mn

of 55.75Mn outstanding

▲+4.09% QoQ

Shares Outstanding

55.75Mn

-7.57Mn held outside 13F filers

Institutional Investors

373

filed 13F for Jun 2026

▲+67 vs prior quarter

Net Shares Added (QoQ)

+2.49Mn

accumulated since last quarter

Value of Holdings

$3.31Bn

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) has 373 institutional investors with active 13F positions as of June 2026.

Collectively, these holders controlled 113.6% of Power Integrations's outstanding shares in June 2026, down from 114.7% in March 2026.
Their total shares held in POWI increased 4.09% quarter over quarter, and separately, investors owning Power Integrations increased 9.06% from a year ago.
Activity in POWI broke down as 217 buyers, 110 sellers, and 46 unchanged among 373 total holders.
Altogether, these fund groups held 63.32Mn shares in POWI by June 2026, up by 2.49Mn shares quarter on quarter, and up 3.02Mn shares year over year.
BlackRock, Inc. leads ownership in POWI with 8.72Mn shares as of June 30, 2026, equal to 15.65% of outstanding shares.
The largest buyers of Power Integrations for the quarter ending June 2026 were CONGRESS ASSET MANAGEMENT CO (930.06K), MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (767.67K), AMERICAN CENTURY COMPANIES INC (755.11K), Sixth Street Partners Management Company, L.P. (753.51K), Invesco Ltd. (589.71K).
Top sellers of POWI stock for the quarter ending June 2026 included Neuberger Berman Group LLC (1.91Mn), Copeland Capital Management, LLC (438.98K), Jpmorgan Chase & Co (414.12K), SNYDER CAPITAL MANAGEMENT L P (337.56K), Morgan Stanley (309.5K).
According to Business Quant data, leading holders of POWI for June 2026 are BlackRock, Inc. (8.72Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (5.19Mn), WELLINGTON MANAGEMENT GROUP LLP (3.6Mn), State Street Corp (3.19Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.51Mn), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (2.38Mn), Neuberger Berman Group LLC (2.02Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.92Mn), DISCIPLINED GROWTH INVESTORS INC /MN (1.89Mn), GEODE CAPITAL MANAGEMENT, LLC (1.8Mn).

Form 13F Holdings

373 Institutional Holders

Report period 30 Jun, 2026

Total shares held 63.32Mn

Of outstanding 113.58%

#	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 373 holders