Advantest ATEYY SEC Filings

OTC ATEYY
$165.51 -49.49 (-23.02%)
At close: Nov 5, 2026 · 4:00 PM EST
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Advantest Corp (ATEYY) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
1EFFECTOthers9999999995-26-002626Aug 11, 2026 4:15 AM
2F-6Others0001193805-26-001036Aug 6, 2026 6:52 PM
3SCHEDULE 13GBeneficial Ownership Report0001193125-26-242623May 27, 2026 1:00 AM
4DOthers0001158838-25-000004Aug 28, 2025 2:31 PM
5DOthers0000891839-24-000006Sep 3, 2024 5:24 PM
6DOthers0000891839-23-000002Jun 6, 2023 5:59 PM
7DOthers0000891839-22-000007Jun 9, 2022 4:04 PM
8SC 13GBeneficial Ownership Report0001341004-20-000320Aug 6, 2020 4:05 PM
915F-12BOthers0000947871-16-001121Apr 22, 2016 1:24 PM
10S-8 POSProspectus0000947871-16-001120Apr 22, 2016 10:22 AM
11S-8 POSProspectus0000947871-16-001119Apr 22, 2016 10:20 AM
12S-8 POSProspectus0000947871-16-001118Apr 22, 2016 10:17 AM
13S-8 POSProspectus0000947871-16-001117Apr 22, 2016 10:13 AM
14S-8 POSProspectus0000947871-16-001116Apr 22, 2016 10:10 AM
15S-8 POSProspectus0000947871-16-001115Apr 22, 2016 10:07 AM
16F-6 POSOthers0001193805-16-003093Apr 22, 2016 9:51 PM
1725Others0000947871-16-001106Apr 11, 2016 11:21 AM
186-KCurrent Report0000947871-16-001078Apr 1, 2016 10:22 AM
19SC 13GBeneficial Ownership Report0000950103-16-011074Feb 12, 2016 11:13 AM
206-KCurrent Report0000947871-16-000962Feb 12, 2016 11:04 AM
21SC 13GBeneficial Ownership Report0000905148-16-001255Feb 10, 2016 2:53 PM
22SC 13GBeneficial Ownership Report0001193125-16-449893Feb 4, 2016 11:21 AM
236-KCurrent Report0000947871-16-000936Jan 27, 2016 11:14 AM
246-KCurrent Report0000947871-15-000880Dec 22, 2015 11:53 AM
256-KCurrent Report0000947871-15-000804Nov 13, 2015 11:05 AM
266-KCurrent Report0000947871-15-000755Oct 26, 2015 10:01 AM
27UPLOADOthers0000000000-15-044939Sep 9, 2015 8:23 PM
28CORRESPOthers0000947871-15-000630Sep 8, 2015 10:07 AM
29UPLOADOthers0000000000-15-043628Aug 31, 2015 5:31 PM
306-KCurrent Report0000947871-15-000560Aug 14, 2015 10:03 AM
316-KCurrent Report0000947871-15-000503Jul 28, 2015 10:04 AM
326-KCurrent Report0000947871-15-000447Jun 25, 2015 1:29 PM
3320-FQuarterly & Annual Report0001193125-15-234186Jun 25, 2015 11:18 AM
346-KCurrent Report0000947871-15-000422Jun 1, 2015 3:58 PM
35SDOthers0000947871-15-000420Jun 1, 2015 12:03 PM
366-KCurrent Report0000947871-15-000412May 27, 2015 10:26 AM
376-KCurrent Report0000947871-15-000330Apr 27, 2015 10:49 AM
386-KCurrent Report0000947871-15-000226Mar 25, 2015 10:10 AM
396-KCurrent Report0000947871-15-000109Feb 13, 2015 11:39 AM
40SC 13GBeneficial Ownership Report0000950103-15-001224Feb 13, 2015 11:10 AM
41SC 13GBeneficial Ownership Report0001193125-15-045319Feb 12, 2015 11:15 AM
42SC 13GBeneficial Ownership Report0000905148-15-000153Feb 5, 2015 3:12 PM
436-KCurrent Report0000947871-15-000062Jan 29, 2015 11:19 AM
446-KCurrent Report0000947871-14-000705Nov 14, 2014 11:14 AM
456-KCurrent Report0000947871-14-000676Oct 28, 2014 10:02 AM
466-KCurrent Report0000947871-14-000548Aug 25, 2014 1:48 PM
476-KCurrent Report0000947871-14-000525Aug 14, 2014 1:23 PM
486-KCurrent Report0000947871-14-000496Aug 7, 2014 10:21 AM
496-KCurrent Report0000947871-14-000469Jul 24, 2014 10:14 AM
50S-8 POSProspectus0000947871-14-000468Jul 23, 2014 6:32 PM
...

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