Onconetix, Inc.SEC Filings
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All SEC filings by Onconetix, Inc. (ONCO) — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.
Financials
| 10-Q | Quarterly report | View Diff | Aug 13, 2026 | |
| 10-Q | Quarterly report | View Diff | May 13, 2026 | |
| 10-K | Annual report | View Diff | Mar 13, 2026 | |
| 10-Q | Quarterly report | View Diff | Nov 13, 2025 | |
| 10-Q | Quarterly report | View Diff | Aug 14, 2025 | |
| 10-Q | Quarterly report | View Diff | Jun 12, 2025 | |
| 10-K | Annual report | View Diff | Jun 2, 2025 | |
| NT 10-K | Notice of late annual filing | Apr 1, 2025 | ||
| 10-Q | Quarterly report | View Diff | Dec 9, 2024 | |
| NT 10-Q | Notice of late quarterly filing | Nov 15, 2024 |
Events
| 8-K | Onconetix Provides Strategic Bridge Financing to Realbotix Llc in Support of Pending Acquisition | Sep 14, 2026 | ||
| 8-K | Current report | Jul 29, 2026 | ||
| 8-K | Onconetix, Inc. Announces 1-For-10 Reverse Stock Split | May 19, 2026 | ||
| 8-K | Onconetix Reports Q1 2026 Progress at Proteomedix Ag, Including Two New Peer-Reviewed Publications and Initiation of U.s. Validation Study | May 13, 2026 | ||
| 8-K | Submission of Matters to a Vote of Security Holders | May 4, 2026 | ||
| 8-K | Departure of Directors or Certain Officers | Apr 24, 2026 | ||
| 8-K | Onconetix, Inc. Announces 1-For-5 Reverse Stock Split | Mar 26, 2026 | ||
| 8-K/A | Departure of Directors or Certain Officers | Mar 25, 2026 | ||
| 8-K | Departure of Directors or Certain Officers | Mar 24, 2026 | ||
| 8-K | Onconetix to Acquire Realbotix Llc, Usa-Based, Ai-Powered Humanoid Robotics Company | Feb 12, 2026 |
Registrations and Prospectuses
| 425 | Business combination disclosure | Sep 14, 2026 | ||
| 424B3 | Prospectus supplement | Sep 8, 2026 | ||
| 425 | Business combination disclosure | Sep 3, 2026 | ||
| S-1/A | IPO registration | View Diff | Aug 31, 2026 | |
| S-1 | IPO registration | View Diff | Aug 12, 2026 | |
| 425 | Business combination disclosure | Aug 6, 2026 | ||
| 425 | Business combination disclosure | Aug 6, 2026 | ||
| 425 | Business combination disclosure | Jul 7, 2026 | ||
| 425 | Business combination disclosure | Jul 7, 2026 | ||
| 425 | Business combination disclosure | Jun 24, 2026 |
Proxies
| DEF 14A | Annual Meeting of Shareholders | View Diff | Oct 7, 2026 | |
| PRE 14A | Special Meeting of Shareholders | View Diff | Sep 17, 2026 | |
| DEFA14A | Proxy Filing | Sep 14, 2026 | ||
| DEF 14A | Special Meeting of Shareholders | View Diff | Mar 30, 2026 | |
| PRE 14A | Special Meeting of Shareholders | View Diff | Mar 18, 2026 | |
| DEF 14A | Special Meeting of Shareholders | View Diff | Jan 2, 2026 | |
| PRE 14A | Special Meeting of Shareholders | View Diff | Dec 22, 2025 | |
| DEF 14A | Definitive proxy | View Diff | Nov 10, 2025 | |
| PRE 14A | Preliminary proxy | View Diff | Oct 28, 2025 | |
| DEF 14A | Definitive proxy | View Diff | Apr 29, 2025 |
Other
| EFFECT | Notice of effectiveness | Sep 4, 2026 | ||
| EFFECT | Notice of effectiveness | Jun 17, 2026 | ||
| EFFECT | Notice of effectiveness | May 12, 2026 | ||
| EFFECT | Notice of effectiveness | May 8, 2026 | ||
| EFFECT | Notice of effectiveness | Dec 29, 2025 | ||
| UPLOAD | Letter from SEC | May 2, 2025 | ||
| EFFECT | Notice of effectiveness | Feb 12, 2025 | ||
| CORRESP | Correspondence with SEC | Feb 10, 2025 | ||
| UPLOAD | Letter from SEC | Feb 3, 2025 | ||
| EFFECT | Notice of effectiveness | Dec 13, 2024 |
Ownership
| SC 13G | Keystone Capital Partners, Llc Acquires 6.1% Stake in Onconetix, Inc. | Jul 27, 2026 | ||
| 4 | Hrt Financial Lp | Apr 22, 2026 | ||
| 4 | Hrt Financial Lp | Apr 21, 2026 | ||
| 4 | Hrt Financial Lp | Apr 16, 2026 | ||
| 3 | Hrt Financial Lp | Apr 16, 2026 | ||
| 3 | David Allan White | Mar 27, 2026 | ||
| 3 | Dorf Sammy | Mar 27, 2026 | ||
| 3 | Sarah Romano | Dec 12, 2025 | ||
| 4 | Andrew John Oakley | Aug 19, 2025 | ||
| 4 | Simon Tarsh | Aug 19, 2025 |