Innospec Inc.SEC Filings
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All SEC filings by Innospec Inc. (IOSP) — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.
Financials
| 10-Q | Quarterly report | View Diff | Aug 5, 2026 | |
| 10-Q | Quarterly report | View Diff | May 8, 2026 | |
| ARS | Annual report to shareholders | Mar 24, 2026 | ||
| 10-K | Annual report | View Diff | Feb 18, 2026 | |
| 10-Q | Quarterly report | View Diff | Nov 5, 2025 | |
| 10-Q | Quarterly report | View Diff | Aug 6, 2025 | |
| 10-Q | Quarterly report | View Diff | May 9, 2025 | |
| ARS | Annual report to shareholders | Mar 26, 2025 | ||
| 10-K | Annual report | View Diff | Feb 19, 2025 | |
| 10-Q | Quarterly report | View Diff | Nov 6, 2024 |
Events
| 8-K | Innospec Reports Second Quarter 2026 Financial Results | Aug 5, 2026 | ||
| 8-K | Current report | Jun 4, 2026 | ||
| 8-K | Submission of Matters to a Vote of Security Holders | May 13, 2026 | ||
| 8-K | Continued Strength in Fuel Specialties Offset Negative Us Winter Storm Impacts in Other Businesses | May 8, 2026 | ||
| 8-K | Innospec Reports Fourth Quarter and Full Year 2025 | Feb 18, 2026 | ||
| 8-K | Innospec Reports Third Quarter 2025 Financial Results | Nov 5, 2025 | ||
| 8-K | Innospec Reports Second Quarter 2025 Financial Results | Aug 6, 2025 | ||
| 8-K | Submission of Matters to a Vote of Security Holders | May 14, 2025 | ||
| 8-K | Innospec Reports First Quarter 2025 Financial Results | May 9, 2025 | ||
| 8-K | Innospec Approves New $50mm Share Repurchase Program | Mar 11, 2025 |
Registrations and Prospectuses
| S-8 | Registration of securities for employees | Jun 8, 2018 | ||
| 15-12B | Securities registration termination | Mar 1, 2012 | ||
| S-8 | Registration of securities for employees | May 24, 2011 | ||
| S-8 | Registration of securities for employees | May 9, 2011 | ||
| 8-A12B | Registration of securities on exchange | Jun 26, 2009 | ||
| 25 | Voluntary exchange delisting | Apr 24, 2006 | ||
| 8-A12G | Registration of securities | Mar 20, 2006 | ||
| S-8 POS | Registration of securities for employees (post-effective amendment) | Feb 9, 2006 | ||
| S-8 | Registration of securities for employees | Feb 9, 2006 | ||
| S-8 | Registration of securities for employees | Apr 18, 2005 |
Proxies
| DEFA14A | Annual Meeting of Shareholders | Mar 26, 2026 | ||
| DEF 14A | Annual Meeting of Shareholders | View Diff | Mar 26, 2026 | |
| DEFA14A | Additional proxy soliciting materials | Mar 27, 2025 | ||
| DEF 14A | Definitive proxy | View Diff | Mar 27, 2025 | |
| DEFA14A | Additional proxy soliciting materials | Mar 28, 2024 | ||
| DEF 14A | Definitive proxy | View Diff | Mar 28, 2024 | |
| DEFA14A | Additional proxy soliciting materials | Mar 22, 2023 | ||
| DEF 14A | Definitive proxy | View Diff | Mar 22, 2023 | |
| DEFA14A | Additional proxy soliciting materials | Mar 18, 2022 | ||
| DEF 14A | Definitive proxy | View Diff | Mar 18, 2022 |
Other
| SD | Conflict minerals disclosure | May 29, 2026 | ||
| SD | Conflict minerals disclosure | May 30, 2025 | ||
| SD | Conflict minerals disclosure | May 30, 2024 | ||
| SD | Conflict minerals disclosure | May 19, 2023 | ||
| SD | Conflict minerals disclosure | May 19, 2022 | ||
| SD | Conflict minerals disclosure | Apr 30, 2021 | ||
| UPLOAD | Letter from SEC | Jan 4, 2021 | ||
| CORRESP | Correspondence with SEC | Dec 22, 2020 | ||
| UPLOAD | Letter from SEC | Dec 16, 2020 | ||
| SD | Conflict minerals disclosure | Apr 27, 2020 |
Ownership
| SC 13G/A | Allspring Global Investments Holdings, Llc Updates Stake in Innospec Inc. | Oct 7, 2026 | ||
| SC 13G | Allspring Global Investments Holdings, Llc Acquires Stake in Innospec Inc. | Oct 7, 2026 | ||
| 4 | Barnes Corbin | Oct 5, 2026 | ||
| 4 | Griffin Hardy Louis Iii | Oct 5, 2026 | ||
| 4 | Cleminson Ian | Oct 5, 2026 | ||
| 4 | Mcrobbie Ian Malcolm | Oct 5, 2026 | ||
| 4 | Jones David B. | Oct 5, 2026 | ||
| 4 | Williams Patrick | Oct 5, 2026 | ||
| SC 13G/A | Allspring Global Investments Holdings, Llc Updates 7.7% Stake in Innospec Inc. | Jul 31, 2026 | ||
| SC 13G | Dimensional Fund Advisors Lp Acquires Stake in Innospec Inc. | Jul 14, 2026 |