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ON SEMICONDUCTOR CORP — All Filings

1,004 total filings on record

Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-K405 10-K405/A 10-Q 10-Q/A 11-K 144 3 3/A 4 4/A 424B3 424B5 424B7 425 8-A12B 8-A12B/A 8-A12G 8-K 8-K/A ARS CORRESP DEF 14A DEFA14A DFAN14A EFFECT NT 10-K POS AM PRE 14A PRER14A S-1 S-1/A S-3 S-3/A S-3ASR S-4 S-4/A S-8 SC 13D SC 13D/A SC 13G SC 13G/A SC TO-C SC TO-I SC TO-I/A SC TO-T SC TO-T/A SCHEDULE 13G/A SD T-3 UPLOAD
Form Description Accession Number Filed Period
SCHEDULE 13G/A 0000102909-26-001925 Mar 27, 2026
4 0001225208-26-003699 Mar 16, 2026 Mar 13, 2026
144 0001965301-26-000034 Mar 13, 2026
8-K 8-K 0001140361-26-008936 Mar 11, 2026 Mar 9, 2026
4 0001225208-26-002506 Feb 24, 2026 Feb 20, 2026
4 0001225208-26-002505 Feb 24, 2026 Feb 20, 2026
4 0001225208-26-002512 Feb 24, 2026 Feb 20, 2026
4 0001225208-26-002504 Feb 24, 2026 Feb 20, 2026
4 0001225208-26-002131 Feb 18, 2026 Feb 17, 2026
144 0001950047-26-001329 Feb 17, 2026
4 0001225208-26-001894 Feb 13, 2026 Feb 12, 2026
4 0001225208-26-001829 Feb 12, 2026 Feb 10, 2026
4 0001225208-26-001830 Feb 12, 2026 Feb 10, 2026
4 0001225208-26-001828 Feb 12, 2026 Feb 10, 2026
144 0001950047-26-001219 Feb 12, 2026
144 0001950047-26-001200 Feb 12, 2026
4 0001225208-26-001831 Feb 12, 2026 Feb 10, 2026
4 0001225208-26-001534 Feb 9, 2026 Feb 5, 2026
10-K 10-K 0001097864-26-000006 Feb 9, 2026 Dec 31, 2025
4 0001225208-26-001532 Feb 9, 2026 Feb 5, 2026
4 0001225208-26-001531 Feb 9, 2026 Feb 5, 2026
8-K 8-K 0001140361-26-004405 Feb 9, 2026
4 0001225208-26-001533 Feb 9, 2026 Feb 5, 2026
SCHEDULE 13G/A 0000102909-26-000230 Jan 30, 2026
4 0001225208-25-010150 Dec 19, 2025
4 0001225208-25-009790 Dec 8, 2025 Dec 4, 2025
4 0001225208-25-009675 Dec 4, 2025 Dec 3, 2025
144 0001950047-25-009747 Dec 4, 2025
144 0001950047-25-009689 Dec 3, 2025
8-K 8-K 0001140361-25-042498 Nov 17, 2025 Nov 13, 2025
8-K 8-K 0001140361-25-040434 Nov 5, 2025 Nov 4, 2025
SCHEDULE 13G/A 0000315066-25-002786 Nov 5, 2025
10-Q 10-Q 0001097864-25-000019 Nov 3, 2025 Oct 3, 2025
8-K 8-K 0001140361-25-040094 Nov 3, 2025
4 0001225208-25-008507 Oct 6, 2025 Oct 3, 2025
8-K 8-K 0001140361-25-035762 Sep 23, 2025
4 0001225208-25-007302 Aug 15, 2025 Aug 13, 2025
144 0001950047-25-005747 Aug 13, 2025
SCHEDULE 13G/A 0000315066-25-002090 Aug 6, 2025
10-Q 10-Q 0001097864-25-000013 Aug 4, 2025 Jul 4, 2025
8-K 8-K 0001140361-25-028492 Aug 4, 2025
4 0001225208-25-006587 Jul 7, 2025 Jul 3, 2025
144 0001950047-25-004201 Jun 12, 2025
4 0001225208-25-005869 Jun 12, 2025
4 0001225208-25-005477 May 27, 2025 May 26, 2025
8-K 8-K 0001140361-25-019979 May 21, 2025 May 15, 2025
SD SD 0001140361-25-019833 May 20, 2025
4 0001225208-25-005229 May 16, 2025 May 15, 2025
4 0001225208-25-005230 May 16, 2025 May 15, 2025
4 0001225208-25-005231 May 16, 2025 May 15, 2025