Who owns Onconetix, Inc.? Owners, funding and legal record

Before you sign or pay

• Court and bankruptcy: No federal court case or bankruptcy filing found under Onconetix, Inc. in our court records and SEC 8-K records (as of 2026-10-18).
• Leadership changes: the latest reported is Sammy Dorf, Chairman of the Board (Form 8-K filed 2026-04-24). Check you are dealing with the people now in charge.
• Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Keystone Capital Partners, LLC (filed 2026-07-27).

Who is behind it

Onconetix, Inc.: incorporated in Delaware; business address in Cincinnati, Ohio; industry Pharmaceutical Preparations (S-1/A, 2026-08-31).

Officers and directors, each with the role and the filing that names them:

• Karina Fedasz: Executive Officer (Form D, 2025-10-07)
• Simon Tarsh: Director (Form D, 2025-10-07)
• Timothy Ramdeen: Director (Form D, 2025-10-07)
• Thomas Meier: Director (Form D, 2025-10-07)
• Andrew Oakley: Director (Form D, 2025-10-07)

Money raised

Latest IPO step: Onconetix, Inc. amended its IPO registration (S-1/A, 2026-08-31).

IPO filings: S-1/A, 2026-08-31, S-1, 2026-08-12, S-1, 2026-06-09, S-1/A, 2026-05-07, S-1, 2026-04-28; ticker ONCO on Nasdaq Capital Market.

Related pages

Leadership changes5%+ holders

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