ALPHA & OMEGA SEMICONDUCTOR Ltd SEC EDGAR Filings (CIK 0001387467)

SEC EDGAR filings, ownership reports, and insider transactions for ALPHA & OMEGA SEMICONDUCTOR Ltd.

Symbol
AOSL on Nasdaq
Industry
Semiconductors & Related Devices (Office Of Manufacturing)
Business address
475 Oakmead Parkway, Sunnyvale, CA, 94085
Fiscal year end
30 June
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ALPHA & OMEGA SEMICONDUCTOR Ltd has filed 929 SEC EDGAR filings since 16 Jan 2007

Latest Filings

Recent SEC filings for ALPHA & OMEGA SEMICONDUCTOR Ltd including 4, 144, 8-K and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 FORM 4 16 Jan 2026 15 Jan 2026
144 Open 144 document View SEC filing for 144 15 Jan 2026 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 FORM 4 16 Dec 2025 15 Dec 2025
4 Open 4 document View SEC filing for 4 FORM 4 16 Dec 2025 15 Dec 2025
144 Open 144 document View SEC filing for 144 15 Dec 2025 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 17 Nov 2025 14 Nov 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 2025 ANNUAL MEETING VOTING 17 Nov 2025 11 Nov 2025 001-34717
144 Open 144 document View SEC filing for 144 14 Nov 2025 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2025 11 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2025 11 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2025 11 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2025 11 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2025 11 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2025 11 Nov 2025
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2025 11 Nov 2025
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Nov 2025 30 Sep 2025 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K Q1'26 EARNING RELEASAE 05 Nov 2025 05 Nov 2025 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 21 Oct 2025 20 Oct 2025
4 Open 4 document View SEC filing for 4 FORM 4 21 Oct 2025 17 Oct 2025
ARS Open ARS document View SEC filing for ARS ARS FY2025 10K 18 Sep 2025 30 Jun 2025 001-34717
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A FY 2025 18 Sep 2025 001-34717
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 18 Sep 2025 30 Jun 2025 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 10 Sep 2025 09 Sep 2025
4 Open 4 document View SEC filing for 4 FORM 4 02 Sep 2025 15 Aug 2025
S-8 Open S-8 document | Open XBRL data View SEC filing for S-8 S-8 2025 28 Aug 2025 333-289922
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 28 Aug 2025 30 Jun 2025 001-34717
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Aug 2025 005-85975
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Aug 2025 06 Aug 2025 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K AOS ANNOUNCED SALE OF A PORTION OF ITS EQUITY INTEREST IN CQJV 14 Jul 2025 14 Jul 2025 001-34717
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 05 Jun 2025 001-34717
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 04 Jun 2025 19 Nov 2024 001-34717
CORRESP Open CORRESP document View SEC filing for CORRESP 04 Jun 2025
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 15 May 2025 005-85975
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 15 May 2025 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 13 May 2025 12 May 2025
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2025 31 Mar 2025 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 May 2025 07 May 2025 001-34717
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 30 Apr 2025 005-85975
CORRESP Open CORRESP document View SEC filing for CORRESP 25 Apr 2025
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 15 Apr 2025 005-85975
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 11 Apr 2025 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2025 17 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2025 17 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2025 17 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2025 17 Mar 2025
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2025 17 Mar 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 2025 TRANSITION AND BONUS PLAN 04 Mar 2025 28 Feb 2025 001-34717
SD Open SD document View SEC filing for SD SD 2024 28 Feb 2025 001-34717
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 12 Feb 2025 005-85975
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Feb 2025 31 Dec 2024 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Feb 2025 05 Feb 2025 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 14 Jan 2025 13 Jan 2025
144 Open 144 document View SEC filing for 144 13 Jan 2025 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 FORM 4 13 Dec 2024 12 Dec 2024
144 Open 144 document View SEC filing for 144 12 Dec 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 05 Dec 2024 04 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 05 Dec 2024 05 Dec 2024
144 Open 144 document View SEC filing for 144 05 Dec 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 04 Dec 2024 03 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 04 Dec 2024 03 Dec 2024
4 Open 4 document View SEC filing for 4 FORM 4 04 Dec 2024 03 Dec 2024
144 Open 144 document View SEC filing for 144 04 Dec 2024 001-34717
144 Open 144 document View SEC filing for 144 03 Dec 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 25 Nov 2024 22 Nov 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Nov 2024 19 Nov 2024 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 2024 VOTING RESULT 12 Nov 2024 07 Nov 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2024 08 Nov 2024
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2024 07 Nov 2024
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2024 07 Nov 2024
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2024 07 Nov 2024
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2024 07 Nov 2024
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2024 07 Nov 2024
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2024 07 Nov 2024
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2024 07 Nov 2024
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q Q1'25 05 Nov 2024 30 Sep 2024 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Nov 2024 04 Nov 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 25 Oct 2024 24 Oct 2024
144 Open 144 document View SEC filing for 144 24 Oct 2024 001-34717
ARS Open ARS document View SEC filing for ARS ARS FY 2024 10K 25 Sep 2024 30 Jun 2024 001-34717
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A FY 2024 25 Sep 2024 001-34717
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 25 Sep 2024 30 Jun 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 12 Sep 2024 11 Sep 2024
144 Open 144 document View SEC filing for 144 11 Sep 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 29 Aug 2024 28 Aug 2024
4 Open 4 document View SEC filing for 4 FORM 4 23 Aug 2024 23 Aug 2024
144 Open 144 document View SEC filing for 144 23 Aug 2024 001-34717
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 23 Aug 2024 30 Jun 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 15 Aug 2024 15 Aug 2022
4 Open 4 document View SEC filing for 4 FORM 4 13 Aug 2024 12 Aug 2024
144 Open 144 document View SEC filing for 144 12 Aug 2024 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K Q4'24 EARNING RELEASE COVER PAGE 07 Aug 2024 07 Aug 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 20 May 2024 10 May 2024
S-8 Open S-8 document View SEC filing for S-8 S-8 2024 08 May 2024 333-279211
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2024 31 Mar 2024 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K Q3'24 EARNING RELEASE 07 May 2024 07 May 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 22 Apr 2024 22 Apr 2024
144 Open 144 document View SEC filing for 144 22 Apr 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 21 Mar 2024 20 Mar 2024
144 Open 144 document View SEC filing for 144 20 Mar 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2024 15 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2024 15 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2024 15 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2024 15 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2024 15 Mar 2024
4 Open 4 document View SEC filing for 4 FORM 4 13 Mar 2024 11 Mar 2024
144 Open 144 document View SEC filing for 144 13 Mar 2024 001-34717
144 Open 144 document View SEC filing for 144 12 Mar 2024 001-34717
144 Open 144 document View SEC filing for 144 11 Mar 2024 001-34717
SD Open SD document View SEC filing for SD SD 2023 04 Mar 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 15 Feb 2024 14 Feb 2024
144 Open 144 document View SEC filing for 144 14 Feb 2024 001-34717
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 13 Feb 2024 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A MIKE CHANG 2023 12 Feb 2024 005-85975
4 Open 4 document View SEC filing for 4 FORM 4 09 Feb 2024 06 Sep 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SEC SCHEDULE 13G 09 Feb 2024 005-85975
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Feb 2024 31 Dec 2023 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 06 Feb 2024 06 Feb 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 30 Jan 2024 29 Jan 2024
144 Open 144 document View SEC filing for 144 29 Jan 2024 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 25 Jan 2024 25 Jan 2024 001-34717
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 23 Jan 2024 005-85975
4 Open 4 document View SEC filing for 4 FORM 4 19 Jan 2024 18 Jan 2024
144 Open 144 document View SEC filing for 144 19 Jan 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 16 Jan 2024 16 Jan 2024
144 Open 144 document View SEC filing for 144 16 Jan 2024 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2024 02 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2024 02 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2024 02 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2024 02 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 05 Jan 2024 02 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 29 Dec 2023 28 Dec 2023
144 Open 144 document View SEC filing for 144 28 Dec 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 18 Dec 2023 14 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 18 Dec 2023 14 Dec 2023
144 Open 144 document View SEC filing for 144 14 Dec 2023 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 2023 ANNUAL MEETING VOTING RESULT 14 Nov 2023 09 Nov 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 13 Nov 2023 09 Nov 2023
4 Open 4 document View SEC filing for 4 FORM 4 13 Nov 2023 09 Nov 2023
4 Open 4 document View SEC filing for 4 FORM 4 13 Nov 2023 09 Nov 2023
4 Open 4 document View SEC filing for 4 FORM 4 13 Nov 2023 09 Nov 2023
4 Open 4 document View SEC filing for 4 FORM 4 13 Nov 2023 09 Nov 2023
4 Open 4 document View SEC filing for 4 FORM 4 13 Nov 2023 09 Nov 2023
4 Open 4 document View SEC filing for 4 FORM 4 13 Nov 2023 09 Nov 2023
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2023 07 Nov 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q Q1'2024 07 Nov 2023 30 Sep 2023 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 06 Nov 2023 06 Nov 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 27 Oct 2023 26 Oct 2023
144 Open 144 document View SEC filing for 144 26 Oct 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 27 Sep 2023 26 Sep 2023
144 Open 144 document View SEC filing for 144 26 Sep 2023 001-34717
ARS Open ARS document View SEC filing for ARS ARS FY 2023 10K 25 Sep 2023 30 Jun 2023 001-34717
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A FY 2023 25 Sep 2023 001-34717
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 25 Sep 2023 30 Jun 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 18 Sep 2023 14 Sep 2023
4 Open 4 document View SEC filing for 4 FORM 4 05 Sep 2023 01 Sep 2023
144 Open 144 document View SEC filing for 144 01 Sep 2023 001-34717
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 29 Aug 2023 30 Jun 2023 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 09 Aug 2023 09 Aug 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 13 Jul 2023 13 Jul 2023
144 Open 144 document View SEC filing for 144 13 Jul 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2023 13 Jun 2023
144 Open 144 document View SEC filing for 144 13 Jun 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 15 May 2023 12 May 2023
144 Open 144 document View SEC filing for 144 12 May 2023 001-34717
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2023 31 Mar 2023 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 04 May 2023 04 May 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 14 Apr 2023 13 Apr 2023
144 Open 144 document View SEC filing for 144 13 Apr 2023 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2023 15 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2023 15 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2023 15 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2023 15 Mar 2023
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2023 15 Mar 2023
SD Open SD document View SEC filing for SD SD 2022 02 Mar 2023 001-34717
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 01 Mar 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K MIKE'S EMPLOYMENT AGREEMENT 24 Feb 2023 23 Feb 2023 001-34717
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Feb 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SEC SCHEDULE 13G 10 Feb 2023 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A MIKE CHANG 2022 09 Feb 2023 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 09 Feb 2023 005-85975
S-8 Open S-8 document View SEC filing for S-8 S-8 2023 08 Feb 2023 333-269638
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Feb 2023 31 Dec 2022 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 06 Feb 2023 06 Feb 2023 001-34717
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 03 Feb 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 26 Jan 2023 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 20 Jan 2023 005-85975
4 Open 4 document View SEC filing for 4 FORM 4 10 Jan 2023 09 Jan 2023
4 Open 4 document View SEC filing for 4 FORM 4 10 Jan 2023 09 Jan 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Dec 2022 06 Dec 2022 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 2022 ANNUAL MEETING VOTING RESULT 01 Dec 2022 29 Nov 2022 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 01 Dec 2022 29 Nov 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Dec 2022 29 Nov 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Dec 2022 29 Nov 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Dec 2022 29 Nov 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Dec 2022 29 Nov 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Dec 2022 29 Nov 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Dec 2022 29 Nov 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Nov 2022 30 Sep 2022 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 03 Nov 2022 03 Nov 2022 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 17 Oct 2022 14 Oct 2022
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A FY 2022 PROXY 13 Oct 2022 30 Jun 2022 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 Oct 2022 05 Oct 2022 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 22 Sep 2022 22 Sep 2022
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K FY 2022 20 Sep 2022 30 Jun 2022 001-34717
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K FY 2022 30 Aug 2022 30 Jun 2022 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 17 Aug 2022 16 Aug 2022
4 Open 4 document View SEC filing for 4 FORM 4 16 Aug 2022 15 Aug 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 10 Aug 2022 10 Aug 2022 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 19 Jul 2022 18 Jul 2022
4 Open 4 document View SEC filing for 4 FORM 4 17 Jun 2022 16 Jun 2022
SC 13G Open SC 13G document View SEC filing for SC 13G 09 Jun 2022 005-85975
4 Open 4 document View SEC filing for 4 FORM 4 17 May 2022 16 May 2022
4 Open 4 document View SEC filing for 4 FORM 4 17 May 2022 13 May 2022
4 Open 4 document View SEC filing for 4 FORM 4 12 May 2022 10 May 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 May 2022 31 Mar 2022 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 05 May 2022 05 May 2022 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 19 Apr 2022 18 Apr 2022
4 Open 4 document View SEC filing for 4 FORM 4 05 Apr 2022 04 Apr 2022
4 Open 4 document View SEC filing for 4 FORM 4 24 Mar 2022 22 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2022 15 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2022 15 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2022 15 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2022 15 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 17 Mar 2022 15 Mar 2022
SD Open SD document View SEC filing for SD SD 2021 02 Mar 2022 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 28 Feb 2022 24 Feb 2022 001-34717
5 Open 5 document View SEC filing for 5 FORM 5 11 Feb 2022 31 Dec 2021
5 Open 5 document View SEC filing for 5 FORM 5 11 Feb 2022 31 Dec 2021
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A MIKE CHANG 2021 11 Feb 2022 005-85975
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Feb 2022 31 Dec 2021 001-34717
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 09 Feb 2022 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SEC SCHEDULE 13G 08 Feb 2022 005-85975
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 07 Feb 2022 07 Feb 2022 001-34717
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 03 Feb 2022 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 31 Jan 2022 005-85975
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 27 Jan 2022 26 Jan 2022 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 14 Jan 2022 13 Jan 2022
4 Open 4 document View SEC filing for 4 FORM 4 11 Jan 2022 10 Jan 2022
4 Open 4 document View SEC filing for 4 FORM 4 13 Dec 2021 10 Dec 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 07 Dec 2021 01 Dec 2021 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2021 11 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2021 11 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2021 11 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2021 11 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2021 11 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2021 11 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2021 11 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2021 11 Nov 2021
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2021 11 Nov 2021
3 Open 3 document View SEC filing for 3 FORM 3 15 Nov 2021 11 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2021 10 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 12 Nov 2021 10 Nov 2021
S-8 Open S-8 document View SEC filing for S-8 S-8 2021 12 Nov 2021 333-261036
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 2021 ANNUAL MEETING VOTING RESULT 12 Nov 2021 11 Nov 2021 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 08 Nov 2021 05 Nov 2021
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 Nov 2021 30 Sep 2021 001-34717
DEFA14A Open DEFA14A document View SEC filing for DEFA14A ALPHA AND OMEGA SEMICONDUCTOR LIMITED DEFA14A 04 Nov 2021 001-34717
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 04 Nov 2021 04 Nov 2021 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 02 Nov 2021 01 Nov 2021
DEFA14A Open DEFA14A document View SEC filing for DEFA14A ALPHA AND OMEGA SEMICONDUCTOR LIMITED DEFA14A 25 Oct 2021 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 12 Oct 2021 11 Oct 2021
DEF 14A Open DEF 14A document View SEC filing for DEF 14A 2021 DEF 14A PROXY 01 Oct 2021 11 Nov 2021 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 13 Sep 2021 10 Sep 2021
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 30 Aug 2021 30 Jun 2021 001-34717
3 Open 3 document View SEC filing for 3 FORM 3 18 Aug 2021 12 Aug 2021
4 Open 4 document View SEC filing for 4 FORM 4 16 Aug 2021 12 Aug 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 13 Aug 2021 12 Aug 2021 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 11 Aug 2021 10 Aug 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 11 Aug 2021 11 Aug 2021 001-34717
4 Open 4 document View SEC filing for 4 FORM 4 16 Jul 2021 29 Jan 2021
4 Open 4 document View SEC filing for 4 FORM 4 16 Jul 2021 18 Mar 2021
4 Open 4 document View SEC filing for 4 FORM 4 13 Jul 2021 12 Jul 2021
4 Open 4 document View SEC filing for 4 FORM 4 14 Jun 2021 10 Jun 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K ALPHA AND OMEGA SEMICONDUCTOR LIMITED 8-K 08 Jun 2021 08 Jun 2021 001-34717
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8-K Open 8-K document View SEC filing for 8-K 8-K 2019 ANNUAL MEETING VOTE RESULT 12 Nov 2019 07 Nov 2019 001-34717
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q AOSL 12.31.2018 07 Feb 2019 31 Dec 2018 001-34717
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8-K Open 8-K document View SEC filing for 8-K 8-K 2018 ANNUAL MEETING VOTE RESULT 13 Nov 2018 08 Nov 2018 001-34717
S-8 POS Open S-8 POS document View SEC filing for S-8 POS S-8 POS 2018 (6) 09 Nov 2018 333-207987
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q DEC 2017 08 Feb 2018 31 Dec 2017 001-34717
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 07 Feb 2018 07 Feb 2018 001-34717
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8-K Open 8-K document View SEC filing for 8-K 8-K 21 Nov 2017 15 Nov 2017 001-34717
8-K Open 8-K document View SEC filing for 8-K 8-K 2017 ANNUAL MEETING VOTE RESULT 14 Nov 2017 08 Nov 2017 001-34717
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A NONE 07 Nov 2017 005-85975
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8-K Open 8-K document View SEC filing for 8-K 8-K 2017 EXECUTIVE BONUS PLAN 07 Mar 2017 01 Mar 2017 001-34717
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A MIKE CHANG 2016 13 Feb 2017 005-85975
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q Q2 2017 09 Feb 2017 31 Dec 2016 001-34717
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EFFECT Open EFFECT document View SEC filing for EFFECT 13 Jan 2017 333-214666
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8-K Open 8-K document View SEC filing for 8-K 8-K VOTING RESULTS OF 2016 ANNUAL MEETING 14 Nov 2016 09 Nov 2016 001-34717
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q SEPTEMBER 2016 07 Nov 2016 30 Sep 2016 001-34717
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 03 Nov 2016 03 Nov 2016 001-34717
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10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K FY 2016 26 Aug 2016 30 Jun 2016 001-34717
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SD Open SD document View SEC filing for SD SD 2015 19 May 2016 001-34717
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8-K Open 8-K document View SEC filing for 8-K 8-K 25 Mar 2016 24 Mar 2016 001-34717
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UPLOAD Open UPLOAD document View SEC filing for UPLOAD 16 Mar 2016
8-K Open 8-K document View SEC filing for 8-K 8-K EXECUTIVE BONUS PLAN 2016 29 Feb 2016 24 Feb 2016 001-34717
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO. 1 TO SCHEDULE 13G 16 Feb 2016 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A MIKE CHANG 2015 12 Feb 2016 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Feb 2016 005-85975
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q DEC 2015 04 Feb 2016 31 Dec 2015 001-34717
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 03 Feb 2016 03 Feb 2016 001-34717
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S-8 Open S-8 document View SEC filing for S-8 S-8 2015 13 Nov 2015 333-207987
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K FILING DOCUMENT 30 Sep 2011 30 Sep 2011 001-34717
8-K Open 8-K document View SEC filing for 8-K CHANGE OF AUDITOR 27 Sep 2011 26 Sep 2011 001-34717
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SC 13G Open SC 13G document View SEC filing for SC 13G DOC ONE 14 Feb 2011 005-85975
S-8 Open S-8 document View SEC filing for S-8 FORM S-8 11 Feb 2011 333-172173
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 10 Feb 2011 005-85975
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A DOC ONE 10 Feb 2011 005-85975
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 09 Feb 2011 005-85975
6-K Open 6-K document View SEC filing for 6-K FORM 6-K FILING DOCUMENT 02 Feb 2011 02 Feb 2011 001-34717
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Dec 2010 08 Dec 2010 001-34717
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 03 Dec 2010 03 Dec 2010 001-34717
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 30 Nov 2010 30 Nov 2010 001-34717
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 10 Nov 2010 09 Nov 2010 001-34717
6-K Open 6-K document View SEC filing for 6-K FORM 6-K FILING DOCUMENT 28 Oct 2010 28 Oct 2010 001-34717
CT ORDER Open CT ORDER document View SEC filing for CT ORDER 25 Oct 2010 001-34717
CT ORDER Open CT ORDER document View SEC filing for CT ORDER 25 Oct 2010 333-165823
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 Oct 2010 18 Oct 2010 001-34717
20-F Open 20-F document View SEC filing for 20-F FORM 20-F 02 Sep 2010 30 Jun 2010 001-34717
6-K Open 6-K document View SEC filing for 6-K FORM 6-K FILING DOCUMENT 10 Aug 2010 10 Aug 2010 001-34717
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 14 May 2010 14 May 2010 001-34717
CT ORDER Open CT ORDER document View SEC filing for CT ORDER 04 May 2010 333-165823
S-8 Open S-8 document View SEC filing for S-8 FORM S-8 30 Apr 2010 333-166403
424B4 Open 424B4 document View SEC filing for 424B4 FILED PURSUANT TO RULE 424(B)(4) 29 Apr 2010 333-165823
EFFECT Open EFFECT document View SEC filing for EFFECT 28 Apr 2010 333-165823
F-1/A Open F-1/A document View SEC filing for F-1/A AMENDMENT NO. 4 TO FORM F-1 28 Apr 2010 333-165823
CERTNAS Open CERTNAS document View SEC filing for CERTNAS AUTO-GENERATED PAPER DOCUMENT 26 Apr 2010 001-34717
8-A12B Open 8-A12B document View SEC filing for 8-A12B FORM 8-A 22 Apr 2010 001-34717
FWP Open FWP document View SEC filing for FWP ISSUER FREE WRITING PROSPECTUS 21 Apr 2010 333-165823
F-1/A Open F-1/A document View SEC filing for F-1/A AMENDMENT NO. 3 TO FORM F-1 21 Apr 2010 333-165823
F-1/A Open F-1/A document View SEC filing for F-1/A AMENDMENT NO. 2 TO FORM F-1 19 Apr 2010 333-165823
F-1/A Open F-1/A document View SEC filing for F-1/A AMENDMENT NO. 1 TO FORM F-1 09 Apr 2010 333-165823
F-1 Open F-1 document View SEC filing for F-1 FORM F-1 31 Mar 2010 333-165823

About this filer

ALPHA & OMEGA SEMICONDUCTOR Ltd files with the SEC under CIK 0001387467. This page aggregates EDGAR filings and related ownership activity.

Industry: Semiconductors & Related Devices.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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