OLIN Corp SEC filings OLN
OLIN Corp has 1,006 filings in SEC EDGAR's recent list, going back to Aug 19, 2016. Its latest annual report, Form ARS, was filed on Mar 20, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 30, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (material agreement). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Material agreement
|
Nov 4, 2026 | Nov 4, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 4, 2026 | — |
| 10-Q | Quarterly report | Oct 30, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2026 | Oct 29, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 28, 2026 | Oct 27, 2026 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
Aug 25, 2026 | Aug 25, 2026 |
| 425 | Filing | Aug 18, 2026 | — |
| 8-K |
Current report
Other events
|
Aug 18, 2026 | Aug 17, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 13, 2026 | — |
| 425 | Filing | Aug 12, 2026 | — |
| S-8 | Employee stock plan registration | Aug 12, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 11, 2026 | Aug 11, 2026 |
| 425 | Filing | Aug 5, 2026 | — |
| 425 | Filing | Jul 31, 2026 | — |
| 10-Q | Quarterly report | Jul 31, 2026 | Jun 30, 2026 |
| 425 | Filing | Jul 30, 2026 | — |
| 8-K |
Current report
Results of operations
|
Jul 30, 2026 | Jul 30, 2026 |
| 425 | Filing | Jul 29, 2026 | — |
| 425 | Filing | Jul 22, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 14, 2026 | — |
| 425 | Filing | Jul 14, 2026 | — |
| EFFECT | Filing | Jul 13, 2026 | — |
| 424B3 | Prospectus | Jul 13, 2026 | — |
| 425 | Filing | Jul 13, 2026 | — |
| S-4/A | Filing | Jul 10, 2026 | — |
| S-4 | Registration for a merger or exchange | Jul 2, 2026 | — |
| 425 | Filing | Jun 25, 2026 | — |
| 11-K | Employee savings plan report | Jun 24, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jun 18, 2026 | Jun 17, 2026 |
| 425 | Filing | Jun 17, 2026 | — |
| 425 | Filing | Jun 16, 2026 | — |
| 425 | Filing | Jun 16, 2026 | — |
| 8-K |
Current report
Material agreement, Other events
|
Jun 16, 2026 | Jun 15, 2026 |
| 425 | Filing | Jun 16, 2026 | — |
| 425 | Filing | Jun 16, 2026 | — |
| 425 | Filing | Jun 16, 2026 | — |
| 425 | Filing | Jun 16, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 16, 2026 | Jun 16, 2026 |
| 425 | Filing | Jun 16, 2026 | — |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2026 | — |
| 8-K/A |
Amended current report
Shareholder vote results
|
May 21, 2026 | Apr 29, 2026 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 13, 2026 | — |
| 10-Q | Quarterly report | May 8, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| 4 | Insider transaction | May 5, 2026 | May 1, 2026 |
| S-8 | Employee stock plan registration | Apr 30, 2026 | — |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change, Shareholder vote results, Regulation FD disclosure
|
Apr 30, 2026 | Apr 29, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 30, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| ARS | Annual report to shareholders | Mar 20, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Mar 20, 2026 | Mar 18, 2026 |
| DEFA14A | Additional proxy material | Mar 20, 2026 | — |
| DEF 14A | Proxy statement | Mar 20, 2026 | Apr 30, 2026 |
| S-3ASR | Automatic shelf registration | Mar 5, 2026 | — |
| 4 | Insider transaction | Feb 25, 2026 | Feb 25, 2026 |
| 144 | Notice of proposed sale | Feb 25, 2026 | — |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 4 | Insider transaction | Feb 24, 2026 | Feb 20, 2026 |
| 144 | Notice of proposed sale | Feb 24, 2026 | — |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 4 | Insider transaction | Feb 20, 2026 | Feb 18, 2026 |
| 10-K | Annual report | Feb 20, 2026 | Dec 31, 2025 |
| S-8 POS | 2006 ltip deregistration | Feb 19, 2026 | — |
| S-8 POS | 2000 ltip deregistration | Feb 19, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 19, 2026 | Feb 19, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 12, 2026 | Feb 12, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 3, 2026 |
| 4 | Insider transaction | Feb 5, 2026 | Feb 3, 2026 |
| 144 | Notice of proposed sale | Feb 3, 2026 | — |
| 144 | Notice of proposed sale | Feb 3, 2026 | — |
| 8-K |
Current report
Results of operations
|
Jan 29, 2026 | Jan 29, 2026 |
| 8-K |
Current report
Results of operations
|
Jan 8, 2026 | Jan 8, 2026 |
| 4 | Insider transaction | Nov 28, 2025 | Nov 26, 2025 |
| 144 | Notice of proposed sale | Nov 24, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 12, 2025 | Nov 12, 2025 |
| 10-Q | Quarterly report | Oct 28, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 27, 2025 | Oct 27, 2025 |
| 4 | Insider transaction | Aug 15, 2025 | Aug 13, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change, Regulation FD disclosure
|
Aug 13, 2025 | Aug 12, 2025 |
| 144 | Notice of proposed sale | Aug 13, 2025 | — |
| 4 | Insider transaction | Aug 7, 2025 | Aug 6, 2025 |
| 10-Q | Quarterly report | Jul 29, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 28, 2025 | Jul 28, 2025 |
| 4 | Insider transaction | Jul 18, 2025 | Mar 18, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 17, 2025 |
| 11-K | Employee savings plan report | Jun 6, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Jun 3, 2025 | Jun 1, 2025 |
| SD | Specialized disclosure (conflict minerals) | May 29, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 14, 2025 | — |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 4 | Insider transaction | May 5, 2025 | May 1, 2025 |
| 3 | Initial insider ownership | May 2, 2025 | May 1, 2025 |
| 10-Q | Quarterly report | May 2, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Bylaw or fiscal year change, Shareholder vote results, Regulation FD disclosure
|
May 1, 2025 | May 1, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 18, 2025 | Apr 18, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 17, 2025 | — |
| ARS | Annual report to shareholders | Mar 21, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 21, 2025 | — |
| DEF 14A | Proxy statement | Mar 21, 2025 | May 1, 2025 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Mar 14, 2025 | Mar 14, 2025 |
| 3 | Initial insider ownership | Mar 11, 2025 | Mar 5, 2025 |
| 3 | Initial insider ownership | Mar 10, 2025 | Mar 1, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 7, 2025 | — |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Mar 6, 2025 | Mar 5, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 28, 2025 | Feb 28, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 28, 2025 | Feb 28, 2025 |
| 4/A | Form 4/a | Feb 27, 2025 | May 1, 2024 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 20, 2025 |
| 4 | Insider transaction | Feb 21, 2025 | Feb 19, 2025 |
| 10-K | Annual report | Feb 20, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 20, 2025 | Feb 19, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2025 | — |
| 4 | Insider transaction | Feb 6, 2025 | Feb 4, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 5, 2025 | Feb 5, 2025 |
| 8-K |
Current report
Results of operations
|
Jan 30, 2025 | Jan 30, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 21, 2025 | Jan 15, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 21, 2025 | Jan 21, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure, Other events
|
Dec 12, 2024 | Dec 11, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 10, 2024 | Dec 5, 2024 |
| 8-K |
Current report
Officer or director change
|
Nov 21, 2024 | Nov 15, 2024 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Nov 20, 2024 | Nov 20, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 12, 2024 | Nov 8, 2024 |
| 144 | Notice of proposed sale | Nov 8, 2024 | — |
| 10-Q | Quarterly report | Oct 25, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 24, 2024 | Oct 24, 2024 |
| 8-K |
Current report
Officer or director change
|
Oct 1, 2024 | Sep 30, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 10, 2024 | — |
| 8-K | Current report | Sep 6, 2024 | Sep 6, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 28, 2024 | Aug 28, 2024 |
| 144 | Notice of proposed sale | Aug 26, 2024 | — |
| 10-Q | Quarterly report | Jul 26, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 25, 2024 | Jul 24, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 10, 2024 | Jul 10, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 1, 2024 | Jul 1, 2024 |
| 4/A | Form 4/a | Jun 20, 2024 | Jun 17, 2024 |
| 4 | Insider transaction | Jun 17, 2024 | Jun 16, 2024 |
| 3 | Initial insider ownership | Jun 17, 2024 | Jun 17, 2024 |
| 11-K | Employee savings plan report | Jun 6, 2024 | Dec 31, 2023 |
| 4 | Insider transaction | Jun 4, 2024 | Jun 1, 2024 |
| SD | Specialized disclosure (conflict minerals) | May 30, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure
|
May 23, 2024 | May 23, 2024 |
| 8-K |
Current report
Officer or director change
|
May 17, 2024 | May 13, 2024 |
| 3 | Initial insider ownership | May 6, 2024 | Apr 25, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 144 | Notice of proposed sale | Apr 29, 2024 | — |
| 10-Q | Quarterly report | Apr 26, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change, Shareholder vote results, Regulation FD disclosure
|
Apr 25, 2024 | Apr 24, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 3, 2024 | Apr 3, 2024 |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
| 3 | Initial insider ownership | Mar 18, 2024 | Mar 18, 2024 |
| ARS | Annual report to shareholders | Mar 15, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Mar 15, 2024 | — |
| DEF 14A | Proxy statement | Mar 15, 2024 | Apr 25, 2024 |
| 4/A | Form 4/a | Mar 12, 2024 | Jan 30, 2024 |
| 4 | Insider transaction | Feb 28, 2024 | Feb 26, 2024 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Chemicals & Allied Products (SIC 2800)
- Listed as
- OLN (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- VA
- Headquarters
- Clayton, MO
- SEC filer status
- Large accelerated filer
- SEC CIK
- 74303
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.