Alpha & Omega Semiconductor AOSL Institutional Ownership

NASDAQ AOSL

$25.78 +0.97 (+3.91%)

At close: Sep 11, 2026 · 4:00 PM EDT

Institutions by Trading Activity

218 Institutions

Increased 126 57.8%

Unchanged 27 12.4%

Reduced 65 29.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

77.65%

▲+3.19 pp QoQ

Shares Held by Institutions

23.26Mn

of 29.95Mn outstanding

▲+10.43% QoQ

Shares Outstanding

29.95Mn

6.69Mn held outside 13F filers

Institutional Investors

218

filed 13F for Jun 2026

▲+38 vs prior quarter

Net Shares Added (QoQ)

+2.20Mn

accumulated since last quarter

Value of Holdings

$599.55Mn

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

ALPHA & OMEGA SEMICONDUCTOR Ltd (NASDAQ:AOSL) showed up in the 13F filings of 218 institutional investors as of June 2026.

These investors held 77.6% of outstanding shares in June 2026, up from 74.5% in March 2026.
They increased total shares held in AOSL by 10.43% quarter over quarter, and investors in Alpha & Omega Semiconductor increased 32.12% from a year ago.
During the quarter, 126 of these 218 funds increased positions in AOSL, 65 reduced exposure, and 27 held steady.
Institutional investors collectively held 23.26Mn shares in Alpha & Omega Semiconductor as of June 2026, up by 2.2Mn shares quarter on quarter, and up 766.84K shares year over year.
BlackRock, Inc. leads ownership in AOSL with 4.26Mn shares as of June 30, 2026, equal to 14.21% of outstanding shares.
Top purchasers of AOSL stock for the quarter ending June 2026 included State Street Corp (945.9K), Sixth Street Partners Management Company, L.P. (403.2K), TWO SIGMA INVESTMENTS, LP (398.56K), BlackRock, Inc. (351.75K), Connor, Clark & Lunn Investment Management Ltd. (300.18K).
Leading sellers of Alpha & Omega Semiconductor shares for the quarter ending June 2026 were WELLINGTON MANAGEMENT GROUP LLP (281.9K), Jpmorgan Chase & Co (234.47K), DIMENSIONAL FUND ADVISORS LP (228.78K), ROYCE & ASSOCIATES LP (209.1K), MANUFACTURERS LIFE INSURANCE COMPANY, THE (199.38K).
Per Business Quant, the top 10 investors in AOSL for the quarter ending June 2026 include BlackRock, Inc. (4.26Mn), State Street Corp (2.35Mn), MANUFACTURERS LIFE INSURANCE COMPANY, THE (1.38Mn), DIMENSIONAL FUND ADVISORS LP (1.34Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.11Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.07Mn), TWO SIGMA INVESTMENTS, LP (951.58K), FMR LLC (791.72K), GEODE CAPITAL MANAGEMENT, LLC (658.9K), Connor, Clark & Lunn Investment Management Ltd. (636.89K).

Form 13F Holdings

218 Institutional Holders

Report period 30 Jun, 2026

Total shares held 23.26Mn

Of outstanding 77.65%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	4,256,528	14.21%	▲351,752	+9.01%	$201.46Mn
2	State Street Corp	0000093751	2,347,448	7.84%	▲945,898	+67.49%	$111.10Mn
3	MANUFACTURERS LIFE INSURANCE COMPANY, THE	0000928047	1,375,083	4.59%	▼199,379	-12.66%	$65.08Mn
4	DIMENSIONAL FUND ADVISORS LP	0000354204	1,335,089	4.46%	▼228,782	-14.63%	$63.18Mn
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,111,480	3.71%	▼57,449	-4.91%	$52.61Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,070,895	3.58%	▲19,664	+1.87%	$50.69Mn
7	TWO SIGMA INVESTMENTS, LP	0001179392	951,576	3.18%	▲398,565	+72.07%	$45.04Mn
8	FMR LLC	0000315066	791,715	2.64%	▲247,006	+45.35%	$37.47Mn
9	GEODE CAPITAL MANAGEMENT, LLC	0001214717	658,902	2.20%	▲30,234	+4.81%	$31.19Mn
10	Connor, Clark & Lunn Investment Management Ltd.	0001596800	636,893	2.13%	▲300,177	+89.15%	$30.14Mn
11	WEBER CAPITAL MANAGEMENT LLC /ADV	0001099905	538,437	1.80%	▼3,871	-0.71%	$25.48Mn
12	WELLINGTON MANAGEMENT GROUP LLP	0000902219	412,910	1.38%	▼281,898	-40.57%	$19.54Mn
13	Sixth Street Partners Management Company, L.P.	0001812095	403,197	1.35%	▲403,197	0.00%	$19.08Mn
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	403,197	1.35%	▼17,230	-4.10%	$19.08Mn
14	ACADIAN ASSET MANAGEMENT LLC	0000916542	323,866	1.08%	▲113,226	+53.75%	$15.31K
15	ROYCE & ASSOCIATES LP	0000906304	309,015	1.03%	▼209,100	-40.36%	$14.63Mn
16	D. E. Shaw & Co., Inc.	0001009207	284,225	0.95%	▲4,637	+1.66%	$13.45Mn
17	Goldman Sachs Group Inc	0000886982	279,113	0.93%	▲11,431	+4.27%	$13.21Mn
18	MILLENNIUM MANAGEMENT LLC	0001273087	267,648	0.89%	▲69,866	+35.32%	$12.67Mn
19	Northern Trust Corp	0000073124	261,018	0.87%	▲14,228	+5.77%	$12.35Mn

Showing 1 to 20 of 218 holders