AOSL · ALPHA & OMEGA SEMICONDUCTOR Ltd · Shareholders & Ownership

$23.61 +5.13 (+27.76%) At close · Nov 6 Play latest call Q1 2027 earnings call transcript

S&P 600 member Russell 2000 member Rebalance outlook locked

Market Cap

$714.42M

30.26M

Volume · Nov 6 1.27M Avg daily vol (3M) 580.44K

Every disclosed holder of AOSL in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns AOSL

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	206	22,730,658	75.12%	Yes
Insiders (Forms 3, 4, 5)	13	5,792,561	19.14%	Yes
13D/G-only blocks	0	0	0.00%	Yes
Remaining	—	1,736,036	5.74%	Rest
Registered funds (N-PORT, not summed)	82	3,649,579	12.06%	No

Shares outstanding: 30,259,255, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of AOSL

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Chang Mike F Insider CIK 1511393 · Aug 24, 2026 Director, 10% Owner, issuer-wide	4,259,379	14.08%	-100,947	Aug 24, 2026	Director, 10% Owner, issuer-wide
1.1	Mike F. Chang 13G CIK 1511393 · Unknown · Jun 30, 2026 Rule 13d-1(d), exempt investor, not summed	4,212,201	13.92%	+84,546	Jun 30, 2026	Rule 13d-1(d), exempt investor, not summed
2	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	4,256,528	14.07%	+351,752	Jun 30, 2026	carried, not yet filed for the newest quarter
2.1	iShares MSCI World Small-Cap ETF Fund S000091430 · Registered fund · Aug 31, 2026 iShares Trust, not summed	1,985	0.01%	0	Aug 31, 2026	iShares Trust, not summed
3	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	2,347,448	7.76%	+945,898	Jun 30, 2026	carried, not yet filed for the newest quarter
3.1	STATE STREET CORP 13G CIK 93751 · Bank · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	2,347,448	7.76%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
4	MANUFACTURERS LIFE INSURANCE COMPANY, THE 13F CIK 928047 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	1,375,083	4.54%	-199,379	Jun 30, 2026	carried, not yet filed for the newest quarter
4.1	Small Cap Core Fund Fund S000043450 · Registered fund · Jul 31, 2026 John Hancock Investment Trust, not summed	476,851	1.58%	-48,967	Jul 31, 2026	John Hancock Investment Trust, not summed
5	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Sep 30, 2026	1,239,764	4.10%	-95,325	Sep 30, 2026
5.1	Dimensional US Small Cap Value ETF Fund S000075151 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	170,217	0.56%	+25,761	Jul 31, 2026	Dimensional ETF Trust, not summed
5.2	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	110,161	0.36%	+12,730	Jul 31, 2026	Dimensional ETF Trust, not summed
5.3	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	71,101	0.24%	+29,947	Jul 31, 2026	Dimensional ETF Trust, not summed
5.4	Dimensional U.S. Targeted Value ETF Fund S000070901 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	26,347	0.09%	-103,756	Jul 31, 2026	Dimensional ETF Trust, not summed
5.5	Dimensional U.S. Marketwide Value ETF Fund S000075030 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	14,242	0.05%	-516	Jul 31, 2026	Dimensional ETF Trust, not summed
6	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,111,480	3.67%	-57,449	Jun 30, 2026	carried, not yet filed for the newest quarter
7	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,070,895	3.54%	+19,664	Jun 30, 2026	carried, not yet filed for the newest quarter
8	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	951,576	3.14%	+398,565	Jun 30, 2026	carried, not yet filed for the newest quarter
9	FMR LLC 13F CIK 315066 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	791,715	2.62%	+247,006	Jun 30, 2026	carried, not yet filed for the newest quarter
10	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	759,077	2.51%	+10,000	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
11	Chang Stephen Chunping Insider CIK 1722000 · Aug 24, 2026 Director, Chief Executive Officer, issuer-wide	735,017	2.43%	+100,947	Aug 24, 2026	Director, Chief Executive Officer, issuer-wide
12	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Sep 30, 2026	664,830	2.20%	+5,928	Sep 30, 2026
13	VANGUARD INFORMATION TECHNOLOGY INDEX FUND Fund S000004452 · Registered fund · Aug 31, 2026 VANGUARD WORLD FUND, not summed	644,270	2.13%	+1,195	Aug 31, 2026	VANGUARD WORLD FUND, not summed
14	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	636,893	2.10%	+300,177	Jun 30, 2026	carried, not yet filed for the newest quarter
15	WEBER CAPITAL MANAGEMENT LLC /ADV 13F CIK 1099905 · Registered investment adviser · Sep 30, 2026	536,737	1.77%	-1,700	Sep 30, 2026
16	WELLINGTON MANAGEMENT GROUP LLP 13F CIK 902219 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	412,910	1.36%	-281,898	Jun 30, 2026	carried, not yet filed for the newest quarter
17	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	403,197	1.33%	-17,230	Jun 30, 2026	carried, not yet filed for the newest quarter
18	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	323,866	1.07%	+113,226	Jun 30, 2026	carried, not yet filed for the newest quarter
19	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	309,015	1.02%	-209,100	Jun 30, 2026	carried, not yet filed for the newest quarter
20	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	287,453	0.95%	+10,930	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
21	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	284,225	0.94%	+4,637	Jun 30, 2026	carried, not yet filed for the newest quarter
22	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	279,113	0.92%	+11,431	Jun 30, 2026	carried, not yet filed for the newest quarter
23	Liang Yifan Insider CIK 1522325 · Apr 28, 2026 CFO and Corp Secretary, issuer-wide	269,403	0.89%	-600	Apr 28, 2026	CFO and Corp Secretary, issuer-wide
24	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	267,648	0.88%	+69,866	Jun 30, 2026	carried, not yet filed for the newest quarter
25	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	261,018	0.86%	+14,228	Jun 30, 2026	carried, not yet filed for the newest quarter
25.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	12,512	0.04%	+214	Jun 30, 2026	Northern Funds, not summed
25.2	Small Cap Core Fund Fund S000001244 · Registered fund · Jun 30, 2026 Northern Funds, not summed	3,286	0.01%	-141	Jun 30, 2026	Northern Funds, not summed
26	CONGRESS ASSET MANAGEMENT CO 13F CIK 897378 · Registered investment adviser · Sep 30, 2026	246,735	0.82%	+43,275	Sep 30, 2026
27	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	234,335	0.77%	+234,335	Jun 30, 2026	carried, not yet filed for the newest quarter
28	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	217,176	0.72%	+20,281	Jun 30, 2026	carried, not yet filed for the newest quarter
29	Invesco Ltd. 13F CIK 914208 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	207,842	0.69%	-167,931	Jun 30, 2026	carried, not yet filed for the newest quarter
29.1	Invesco S&P SmallCap Information Technology ETF Fund S000028301 · Registered fund · Aug 31, 2026 Invesco Exchange-Traded Fund Trust II, not summed	53,945	0.18%	+4,048	Aug 31, 2026	Invesco Exchange-Traded Fund Trust II, not summed
29.2	Invesco S&P Smallcap 600 Pure Value ETF Fund S000060800 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	53,577	0.18%	+925	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
29.3	Invesco RAFI US 1500 Small-Mid ETF Fund S000013120 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	46,999	0.16%	-7,958	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
29.4	Invesco S&P SmallCap 600 Revenue ETF Fund S000064596 · Registered fund · Aug 31, 2026 Invesco Exchange-Traded Fund Trust II, not summed	23,047	0.08%	-12,267	Aug 31, 2026	Invesco Exchange-Traded Fund Trust II, not summed
29.5	Invesco Russell 2000 Dynamic Multifactor ETF Fund S000064608 · Registered fund · Aug 31, 2026 Invesco Exchange-Traded Self-Indexed Fund Trust, not summed	5,538	0.02%	+4,943	Aug 31, 2026	Invesco Exchange-Traded Self-Indexed Fund Trust, not summed
30	Apis Capital Advisors, LLC 13F CIK 1386892 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	206,280	0.68%	+206,280	Jun 30, 2026	carried, not yet filed for the newest quarter
31	PANAGORA ASSET MANAGEMENT INC 13F CIK 883677 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	194,356	0.64%	+135,571	Jun 30, 2026	carried, not yet filed for the newest quarter
32	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	163,428	0.54%	+485	Jun 30, 2026	carried, not yet filed for the newest quarter
33	JACOBS LEVY EQUITY MANAGEMENT, INC 13F CIK 884414 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	160,918	0.53%	-192,996	Jun 30, 2026	carried, not yet filed for the newest quarter
34	T. Rowe Price Investment Management, Inc. 13F CIK 1897612 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	153,998	0.51%	+153,998	Jun 30, 2026	carried, not yet filed for the newest quarter
35	BRIDGEWAY CAPITAL MANAGEMENT, LLC 13F CIK 1107261 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	149,537	0.49%	+9,206	Jun 30, 2026	carried, not yet filed for the newest quarter
36	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	145,243	0.48%	+17,551	Jun 30, 2026	carried, not yet filed for the newest quarter
37	TUDOR INVESTMENT CORP ET AL 13F CIK 923093 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	144,312	0.48%	+74,762	Jun 30, 2026	carried, not yet filed for the newest quarter
38	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · Aug 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	141,587	0.47%	+11,708	Aug 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
39	Bank of New York Mellon Corp 13F CIK 1390777 · Bank · Sep 30, 2026	139,688	0.46%	-1,757	Sep 30, 2026
40	WEDGE CAPITAL MANAGEMENT L L P/NC 13F CIK 1015308 · Unknown · Sep 30, 2026	139,461	0.46%	+48,021	Sep 30, 2026
41	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	135,116	0.45%	-53,624	Jun 30, 2026	carried, not yet filed for the newest quarter
42	Empowered Funds, LLC 13F CIK 1592828 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	129,537	0.43%	+9,206	Jun 30, 2026	carried, not yet filed for the newest quarter
43	Xue Bing Insider CIK 1787488 · Jul 16, 2026 EVP-WW Sales & Bus Development, issuer-wide	122,785	0.41%	-875	Jul 16, 2026	EVP-WW Sales & Bus Development, issuer-wide
44	PRINCIPAL FINANCIAL GROUP INC 13F CIK 1126328 · Insurance company · Sep 30, 2026	118,522	0.39%	-1,534	Sep 30, 2026
44.1	SmallCap S&P 600 Index Fund Fund S000007203 · Registered fund · Jul 31, 2026 Principal Funds, Inc, not summed	18,302	0.06%	-1,113	Jul 31, 2026	Principal Funds, Inc, not summed
44.2	SmallCap Value Fund II Fund S000007169 · Registered fund · Jul 31, 2026 Principal Funds, Inc, not summed	1,627	0.01%	+827	Jul 31, 2026	Principal Funds, Inc, not summed
45	Trexquant Investment LP 13F CIK 1633445 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	117,474	0.39%	-56,626	Jun 30, 2026	carried, not yet filed for the newest quarter
46	JPMORGAN CHASE & CO 13F CIK 19617 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	109,566	0.36%	-234,466	Jun 30, 2026	carried, not yet filed for the newest quarter
47	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	96,522	0.32%	+54,787	Jun 30, 2026	carried, not yet filed for the newest quarter
48	VANGUARD S&P SMALL-CAP 600 INDEX FUND Fund S000030017 · Registered fund · Aug 31, 2026 VANGUARD ADMIRAL FUNDS, not summed	89,766	0.30%	+4,446	Aug 31, 2026	VANGUARD ADMIRAL FUNDS, not summed
49	Li Wenjun Insider CIK 1878542 · Mar 16, 2026 Chief Operating Officer, issuer-wide	86,558	0.29%	+14,393	Mar 16, 2026	Chief Operating Officer, issuer-wide
50	Public Sector Pension Investment Board 13F CIK 1396318 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	85,371	0.28%	-3,016	Jun 30, 2026	carried, not yet filed for the newest quarter

6 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 268 holders

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Key facts CIK 1387467 CUSIP G6331P104 13F (30d) 90 filings 75 filers Visit website Investor relations