ON · CIK 0001097864
ON SEMICONDUCTOR CORP (ON) SEC Filings
Browse 2598 SEC filings for ON SEMICONDUCTOR CORP, covering Nov 5, 1999 through Jul 2, 2026, organized by filing purpose with direct links to the original EDGAR documents.
Indexed filings
2,598
Filed in the last 12 months
85
History covered
1999–2026
Latest filing
4
Latest important filings
Jump directly to the most recent annual, quarterly, and current reports.
Latest annual report
10-K
Annual report · Feb 9, 2026
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10-Q
Quarterly report · May 4, 2026
Open original filingLatest company update
8-K
Material agreement; Other material event · Jun 25, 2026
Open original filingComplete filing history
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50 filings
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| Form | Description | Period ended | Filed |
|---|---|---|---|
| 4 | Change in insider ownership | Jul 2, 2026 | Jul 2, 2026 |
| 425 | 425 filing | — | Jun 30, 2026 |
| 425 | 425 filing | — | Jun 26, 2026 |
| 425 | 425 filing | — | Jun 26, 2026 |
| 425 | 425 filing | — | Jun 26, 2026 |
| 425 | 425 filing | — | Jun 26, 2026 |
| 425 | 425 filing | — | Jun 26, 2026 |
| 425 | 425 filing | — | Jun 26, 2026 |
| 425 | 425 filing | — | Jun 26, 2026 |
| 425 | 425 filing | — | Jun 26, 2026 |
| 425 | 425 filing | — | Jun 25, 2026 |
| 425 | 425 filing | — | Jun 25, 2026 |
| 8-K | Material agreement; Other material event | Jun 25, 2026 | Jun 25, 2026 |
| 144 | Notice of proposed securities sale | — | Jun 10, 2026 |
| 144 | Notice of proposed securities sale | — | Jun 3, 2026 |
| 4 | Change in insider ownership | May 26, 2026 | May 27, 2026 |
| 3 | Initial insider ownership statement | May 15, 2026 | May 22, 2026 |
| 4 | Change in insider ownership | May 14, 2026 | May 18, 2026 |
| 4 | Change in insider ownership | May 14, 2026 | May 18, 2026 |
| 4 | Change in insider ownership | May 14, 2026 | May 18, 2026 |
| 4 | Change in insider ownership | May 14, 2026 | May 18, 2026 |
| 4 | Change in insider ownership | May 14, 2026 | May 18, 2026 |
| 4 | Change in insider ownership | May 14, 2026 | May 18, 2026 |
| SD | Specialized disclosure report | — | May 18, 2026 |
| 8-K | Management or director change; Shareholder vote | May 14, 2026 | May 18, 2026 |
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Recent filing activity
Annual filing counts derived from this company's SEC history.
2026
67 filings
2025
60 filings
2024
84 filings
2023
118 filings
2022
82 filings
2021
103 filings
2020
118 filings
2019
89 filings
Sources and methodology
How this filing index is assembled and checked.
Filing metadata comes from SEC EDGAR submissions. Categories and plain-language labels are generated deterministically from SEC form and item codes; filing content is not summarized on this page.
Index updated: 7/15/2026
For research and education only. Always review the original SEC filing before making a decision.