On July 28, 2026, Onconetix, Inc., a Delaware corporation (the "Company"), entered into a securities purchase agreement (the "Securities Purchase Agreement") with an accredited investor (the "PIPE Investor"), pursuant to which the Company agreed to issue and sell to the PIPE Investor an aggregate of 37,812 shares of Series F convertible preferred stock, par value $0.00001 per share ("Series F Preferred Stock"), for an aggregate purchase price of $30,249,600 (the "PIPE Financing"). Concurrently with entering into the Securities Purchase Agreement, the Company also entered into a Registration Rights Agreement (as defined below) with the PIPE Investor, pursuant to which the Company agreed to provide the PIPE Investor with certain registration rights relating to the shares of Common Stock issuable upon conversion of the Series F Preferred Stock, as described below. The following descriptions of the Securities Purchase Agreement, the Certificate of Designations of Preferences, Rights and Limitations of the Series F Preferred Stock (the "Certificate of Designations") and the Registration Rights Agreement are summaries only, do not purport to be complete and are qualified in their entirety by reference to the full text of each of those agreements, copies of which are filed as Exhibits 10.1, 3.1 and 10.2, respectively, to this Current Report on Form 8-K, and are incorporated herein by reference. Capitalized terms used but not otherwise defined herein have the meanings assigned to them in the Securities Purchase Agreement, the Certificate of Designations or the Registration Rights Agreement, as applicable.

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Series F Preferred Stock

Certificate of Designations

General. Pursuant to the Certificate of Designations, the Company has authorized the issuance of up to 42,000 shares of Series F Preferred Stock, each having a stated value of $1,000 per share (the "Stated Value"). The Company has issued 37,812 shares of Series F Preferred Stock to the PIPE Investor.

Ranking. The Series F Preferred Stock ranks junior to any Senior Preferred Stock, pari passu with the Company’s Series C Preferred Stock, Series D Preferred Stock and Series E Preferred Stock, and senior to the Company’s Common Stock and other junior securities with respect to dividend rights and rights upon liquidation, dissolution and winding up of the Company.

Dividends. Holders of the Series F Preferred Stock are entitled to receive dividends when and as declared by the Company’s board of directors out of funds legally available therefor. In addition, from and after the occurrence, and during the continuance, of any Triggering Event, Default Dividends accrue on the Stated Value of each share of Series F Preferred Stock at a rate of 15.0% per annum until such Triggering Event is cured and are payable by inclusion in the applicable Conversion Amount or upon redemption, as provided in the Certificate of Designations.

Conversion Rights. Each holder may convert all or any portion of its Series F Preferred Stock into shares of the Company’s Common Stock at an initial conversion price of $0.9767 per share, subject to adjustment as provided in the Certificate of Designations.

Alternate Conversion Rights. Following the Stockholder Approval Date, holders may also elect to effect alternate conversions, including following the occurrence of certain Triggering Events, at alternative conversion prices determined pursuant to the Certificate of Designations, in each case subject to the applicable Floor Price and other limitations set forth therein.

Triggering Events. The Certificate of Designations contains customary Triggering Events, including, among other things, the Company’s failure to timely file or maintain the effectiveness of required registration statements, failures relating to share delivery or maintenance of an adequate share reserve, specified payment defaults, certain bankruptcy and insolvency events, suspension of trading of the Common Stock on an Eligible Market, material breaches of the transaction documents, specified change of control events and other customary events. Upon the occurrence of certain Triggering Events, holders are entitled to exercise the alternate conversion rights described above.

Conversion Price Adjustments. The Conversion Price is subject to customary anti-dilution adjustments for stock splits, stock dividends, stock combinations, recapitalizations and similar transactions. The Certificate of Designations also provides for adjustments in connection with certain stock combination events, issuances of Variable Price Securities and dilutive issuances, as well as voluntary reductions of the Conversion Price with the consent of the Required Holders, in each case as more particularly described in the Certificate of Designations.

Change of Control; Fundamental Transactions. Upon a Change of Control, holders may require the Company to exchange their Series F Preferred Stock for the applicable Change of Control Election Price in the manner provided in the Certificate of Designations. The Certificate of Designations also restricts the Company from consummating specified Fundamental Transactions unless the successor entity (i) assumes the Company’s obligations under the Certificate of Designations and the other Transaction Documents and holders receive the rights and protections set forth therein, and (ii) is a publicly traded corporation whose shares of common stock are quoted on or listed for trading on an Eligible Market.

Redemption Rights. The Company has the right, subject to the terms and conditions of the Certificate of Designations, to redeem all or a portion of the outstanding Series F Preferred Stock for cash at a redemption price equal to 125% of the greater of (i) the applicable Conversion Amount and (ii) the value determined by reference to the Conversion Rate and the highest closing sale price of the Common Stock during the applicable measurement period, in each case as provided in the Certificate of Designations.

Voting Rights. Except as required by applicable law or as expressly provided in the Certificate of Designations, the holders of the Series F Preferred Stock have no voting rights. To the extent holders are entitled to vote together with the holders of Common Stock, each share of Series F Preferred Stock is entitled to the number of votes equal to the number of shares of Common Stock into which such share is then convertible, subject to the applicable beneficial ownership limitations.

Covenants. The Certificate of Designations contains customary affirmative and negative covenants, including requirements that the Company maintain sufficient authorized shares of Common Stock for issuance upon conversion of the Series F Preferred Stock, comply with specified notice obligations, and restrictions on certain dividends, redemptions, issuances of senior securities, sale or transfer of assets of the Company, and other actions affecting the rights of the holders of the Series F Preferred Stock.

Ownership Limitation. A holder may not convert any shares of Series F Preferred Stock to the extent that, after giving effect to such conversion, the holder and its affiliates would beneficially own more than 4.99% of the Company’s outstanding Common Stock, subject to the holder’s right to increase or decrease such limitation to any percentage not exceeding 9.99% upon 61 days’ prior notice to the Company.

Exchange Right. If the Company consummates certain Subsequent Placements, holders may elect, subject to the terms of the Certificate of Designations, to exchange all or a portion of their Series F Preferred Stock for the securities issued in such Subsequent Placement (with the aggregate amount of such securities to be issued in such exchange equal to such aggregate amount of such securities with a purchase price valued at 120% of the Conversion Amount of the Preferred Shares delivered by such Holder in exchange therefor).

Reservation Requirements. So long as any shares of Series F Preferred Stock remain outstanding, the Company must reserve at least 150% of the number of shares of Common Stock necessary to effect the conversion of all outstanding shares of Series F Preferred Stock, assuming conversion at the applicable Floor Price and without regard to the applicable beneficial ownership limitations.

Conditions Precedent to Closing. The obligations of the parties to consummate the PIPE Financing are subject to customary closing conditions, as set forth in the Securities Purchase Agreement.

(Filing, 8-K, Onconetix, JUL 28, 2026, View Source [SID1234669493])