Alpha & Omega Semiconductor Ltd

AOSL

Exchange: Nasdaq
Industry: Semiconductors & Related Devices
SEC CIK: 0001387467

SEC filings (opens in a new tab)

In the last 90 days, Alpha & Omega Semiconductor Ltd insiders filed 0 open-market purchases and 1 sale; 216 institutions reported holding it in 13F filings for Q2 2026, worth $1.08B in total; no superinvestor holds it.

Q1 2026 vs. Q4 2025

How the institutions holding Alpha & Omega Semiconductor Ltd changed between Q4 2025 and Q1 2026.

All holders in Q1 2026 All holders in Q4 2025

13F holders of AOSL: Q4 2025 compared with Q1 2026
Measure	Q4 2025	Of which not filed for Q1 2026	Q1 2026	Change
Holders	168	3	180	+15
Shares	22.4M	2.42M	22.1M	+2.15M (+10.7%)
Value	$444.2M	$48.0M	$490.1M	+$93.9M (+23.7%)

3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (32)

Institutions that held Alpha & Omega Semiconductor Ltd at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to AOSL in Q1 2026
Institution	Shares	Value	% of portfolio
Vanguard Portfolio Management LLC	1,168,929	$25.9M	0.00%
Vanguard Capital Management LLC	1,051,231	$23.3M	0.00%
Vanguard Fiduciary Trust Co	162,943	$3.61M	0.00%
Point72 Asset Management, L.P.	129,287	$2.87M	0.00%
Wedge Capital Management L L P	112,554	$2.49M	0.05%
Panagora Asset Management Inc	58,785	$1.30M	0.00%
Jump Financial, LLC	41,500	$919.6K	0.01%
First Eagle Investment Management, LLC	40,000	$886.4K	0.00%
Counterpoint Mutual Funds LLC	39,579	$877.1K	0.13%
Y-Intercept (Hong Kong) Ltd	35,370	$783.8K	0.01%
Vanguard Global Advisers, LLC	21,023	$465.9K	0.00%
Marshall Wace, LLP	20,400	$452.1K	0.00%
DRW Securities, LLC	20,176	$447.1K	0.02%
HighTower Advisors, LLC	19,506	$432.3K	0.00%
Brevan Howard Capital Management LP	19,171	$424.8K	0.00%
Neuberger Berman Group LLC	18,984	$420.7K	0.00%
Journey Strategic Wealth LLC	17,790	$394.2K	0.01%
Creative Planning	15,924	$352.9K	0.00%
First Citizens Bank & Trust Co	15,830	$350.8K	0.01%
Vanguard Asset Management, Ltd	15,523	$344.0K	0.00%
Envestnet Portfolio Solutions, Inc.	15,205	$336.9K	0.00%
Vanguard Investments Australia, Ltd.	6,351	$140.7K	0.00%
Aster Capital Management (DIFC) Ltd	815	$20.3K	0.01%
Advisory Services Network, LLC	205	$4.54K	0.00%
MAI Capital Management	124	$2.75K	0.00%
Salomon & Ludwin, LLC	106	$2.41K	0.00%
Root Financial Partners, LLC	48	$1.06K	0.00%
Keating Financial Advisory Services, Inc.	19	$421	0.00%
IFP Advisors, Inc	16	$355	0.00%
Essential Partners LLC	4	$89	0.00%
SJS Investment Consulting Inc.	1	$23	0.00%
Gilpin Wealth Management, LLC	1	$23	0.00%

Sold out (17)

Institutions that held Alpha & Omega Semiconductor Ltd at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of AOSL in Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Boston Partners	689,143	$13.7M
Two Sigma Advisers, LP	189,000	$3.74M
Jane Street Group, LLC	108,202	$2.14M
Walleye Capital LLC	47,891	$948.7K
Voya Investment Management LLC	24,386	$483.1K
Axq Capital, LP	20,511	$406.3K
Aquatic Capital Management LLC	20,300	$402.1K
Intech Investment Management LLC	14,476	$286.8K
Dynamic Technology Lab Private Ltd	12,515	$248.0K
Renaissance Technologies LLC	10,500	$208.0K
Amalgamated Bank	7,210	$143.0K
Strengthening Families & Communities, LLC	2,500	$49.5K
Group One Trading, L.P.	694	$13.7K
Quarry LP	66	$1.31K
Fortitude Family Office, LLC	65	$1.29K
Avion Wealth	51	$1.00K
Bare Financial Services, Inc	23	$456

Not filed for Q1 2026 yet (3)

Institutions that held Alpha & Omega Semiconductor Ltd at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding AOSL in Q4 2025 that haven't filed for Q1 2026
Institution	Shares, Q4 2025	Value, Q4 2025
Vanguard Group Inc	2,424,320	$48.0M
Global Retirement Partners, LLC	346	$6.85K
CIBC Private Wealth Group, LLC	7	$139