Result of Fundraise, Restoration of Trading & TVR

THIS ANNOUNCEMENT (INCLUDING THE APPENDICES) AND THE INFORMATION CONTAINED HEREIN IS RESTRICTED AND IS NOT FOR PUBLICATION, RELEASE OR DISTRIBUTION, DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, IN OR INTO THE UNITED STATES OF AMERICA, ITS TERRITORIES AND POSSESSIONS, ANY STATE OF THE UNITED STATES OR THE DISTRICT OF COLUMBIA (COLLECTIVELY, THE "UNITED STATES"), AUSTRALIA, NEW ZEALAND, CANADA, JAPAN, THE REPUBLIC OF IRELAND, THE REPUBLIC OF SOUTH AFRICA OR ANY OTHER JURISDICTION IN WHICH SUCH PUBLICATION, RELEASE OR DISTRIBUTION IS OR WOULD BE PROHIBITED.

THIS ANNOUNCEMENT IS FOR INFORMATION PURPOSES ONLY AND DOES NOT CONSTITUTE OR CONTAIN ANY INVITATION, SOLICITATION, RECOMMENDATION, ADVERTISING, OFFER OR ADVICE TO ANY PERSON TO SUBSCRIBE FOR, OTHERWISE ACQUIRE OR DISPOSE OF ANY SECURITIES IN ONDINE BIOMEDICAL INC OR ANY OTHER ENTITY IN ANY JURISDICTION. NEITHER THIS ANNOUNCEMENT NOR THE FACT OF ITS DISTRIBUTION SHALL FORM THE BASIS OF, OR BE RELIED ON IN CONNECTION WITH, ANY INVESTMENT DECISION IN RESPECT OF ONDINE BIOMEDICAL INC. THIS ANNOUNCEMENT SHOULD BE READ IN ITS ENTIRETY.

NO ACTION HAS BEEN TAKEN OR WILL BE TAKEN BY ONDINE BIOMEDICAL INC. WHICH WOULD PERMIT A PUBLIC OFFERING OF SHARES IN ONDINE BIOMEDICAL INC. OR DISTRIBUTION OF THIS ANNOUNCEMENT OR ANY OTHER MATERIAL IN CONNECTION THEREWITH IN ANY JURISDICTION WHERE ACTION FOR THAT PURPOSE IS REQUIRED.

This Announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulation No. 596/2014 as it forms part of UK law by virtue of the European Union (Withdrawal) Act 2018 as amended. Upon the publication of this Announcement, this inside information is now considered to be in the public domain.

All references to C$ in this announcement ("Announcement") are to Canadian Dollars. This Announcement uses a £:C$ exchange rate of 1: 1.8880.

Capitalised terms used in this announcement have the meanings given to them in the Launch Announcement (as defined below) unless the context provides otherwise.

20 October 2026

Ondine Biomedical Inc. ("Ondine" or the "Company")

Result of Placing and Subscription, Restoration of Trading & TVR

Ondine Biomedical Inc. (AIM: OBI), a leader in light-activated antimicrobial therapies for the prevention and treatment of hospital infections, announces the result of the Placing and Subscription announced on 19 October 2026 (the "Launch Announcement").

The Company confirms total gross proceeds from the Placing and the Subscription are £10 million (C$18.88 million). The Fundraising received extensive support from existing shareholders. Pursuant to the Placing and Subscription, the Company will issue 100,000,000 new Common Shares at 10p per share.

Restoration of Trading

Following the release of this Announcement, the Capital Access Window will close and trading in the Common Shares on AIM is expected to be restored at 7.30 a.m. today.

Director Participation

As described in the Launch Announcement, Carolyn Cross, Chief Executive Officer of the Company, has subscribed for, 10,593,220 Subscription Shares for cash, raising gross proceeds of approximately £1.06 million (C$2 million) for the Company.

In addition, the other Directors of the Company have subscribed for, in aggregate, 1,141,464 Subscription Shares at the Issue Price through the application of amounts owed to them by the Company, totalling approximately £0.11 million (c.C$0.22 million), representing approximately 1.14 per cent of the New Common Shares, to be issued pursuant to the Placing and Subscription.

The number of Subscription Shares, for which Directors have subscribed for, and their resulting shareholdings following Admission, are set out below:

1 Existing beneficial holding includes 120,161,319 Common Shares held by Carolyn Cross, including via holdings in 100% owned companies, and 37,772,652 Common Shares held by Robert Cross, husband of Carolyn Cross. Following Admission, these holdings will be 130,754,539 and 37,772,652 Common Shares, respectively.

2 Directors subscribing in lieu of remuneration due.

Use of Proceeds

The net proceeds of the Fundraising are intended to be allocated as detailed in the Launch Announcement and are expected to provide the Company with a cash runway into early 2028.

Carolyn Cross, CEO of Ondine, commented:

"We would like to thank our existing shareholders and new investors for their continued confidence and support in Ondine. This £10 million fundraise positions the Company to accelerate commercial traction and international growth through targeted expansion of our sales and business development capabilities, while advancing the regulatory, manufacturing and submission activities required for our planned NDA submission in mid-2027. The funding is expected to provide a cash runway through to early 2028, providing a strong platform to execute our strategy and bring Steriwave to patients in markets with significant unmet need."

Admission, Settlement and Dealings

Admission of a total of 100,000,000 new Common Shares is expected to take place on or around 8.00 a.m. on 23 October 2026 with dealings on AIM in the new Common Shares commencing at the same time.

Admission is conditional upon, among other things, the Placing Agreement not having been terminated and becoming unconditional in all respects.

The Placing Shares and Subscription Shares when issued, will be fully paid and will rank pari passu in all respects with the Company issued existing Common Shares, including the right to receive all dividends and other distributions declared, made or paid after the date of issue.

Total Voting Rights

Following Admission, the Company's issued and fully paid share capital will consist of 661,218,135 Common Shares, all of which carry one voting right per share. The Company does not hold any Common Shares in treasury. Therefore, the total number of Common Shares and voting rights in the Company at this date will be 661,218,135 Common Shares.

This figure may be used from the date of Admission until further notice by Existing Shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the FCA's Disclosure Guidance and Transparency Rules. 

The persons responsible for arranging the release of this Announcement on behalf of Ondine are Carolyn Cross, Chief Executive Officer and Nicolas Loebel, President and Chief Technical Officer of Ondine.

Enquiries:

PDMR Notification Form:

The notification below is made in accordance with the requirements of the Market Abuse Regulation:

About Ondine Biomedical Inc.

Ondine Biomedical Inc. is a Canadian life sciences company focused on the development of light-activated antimicrobial therapies ('photodisinfection') for the prevention and treatment of infections, including those associated with multidrug-resistant organisms. Ondine's lead product, branded as Steriwave® outside the United States, is authorised for nasal decolonisation in Canada, the UK, and certain other international markets. The Company has a pipeline of additional photodisinfection products in various stages of development for application in areas including chronic sinusitis, ventilator-associated pneumonia, burns and other indications.

Regulatory approvals, clearances and authorisations vary by jurisdiction, and indications, claims and availability may differ between markets. No statement in this announcement should be interpreted as representing approval, clearance, authorisation or availability in any jurisdiction, or for any use, where such status has not been granted.

U.S. Regulatory Status

Ondine's nasal photodisinfection technology is not approved by FDA and is not commercially available for sale in the United States. In the United States, it is limited by federal law to investigational use only.

Forward-looking statements

This announcement may contain forward-looking statements based on the Company's current expectations and assumptions. Such statements involve risks, uncertainties and other factors that could cause actual results, performance or achievements to differ materially from those expressed or implied. Forward-looking statements speak only as of the date of this announcement, and the Company undertakes no obligation to update them except as required by applicable law or regulation.

IMPORTANT NOTICES

The information contained in this Announcement is given at the date of its publication (unless otherwise marked) and is subject to updating, revision and amendment from time to time. No reliance may be placed for any purpose on the information contained in this announcement or its accuracy, fairness or completeness.

No undertaking, representation, warranty or other assurance, express or implied, is made or given by or on behalf of the Company or the Bookrunner or any of their respective directors, officers, partners, employees, agents or advisers or any other person as to the accuracy or completeness of the information or opinions contained in this announcement and no responsibility or liability is accepted by any of them for any such information or opinions or for any errors, omissions or misstatements, negligence or otherwise in this Announcement.

The information in this Announcement may not be forwarded or distributed to any other person and may not be reproduced in any manner whatsoever. Any forwarding, distribution, reproduction, or disclosure of this information in whole or in part is unauthorized. Failure to comply with this directive may result in a violation of applicable securities laws and regulations of other jurisdictions.

THIS ANNOUNCEMENT, ANY COPY OF IT, AND THE INFORMATION (INCLUDING THE TERMS AND CONDITIONS) CONTAINED HEREIN, IS RESTRICTED AND IS NOT FOR TRANSMISSION, PUBLICATION, RELEASE OR DISTRIBUTION, DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, IN OR INTO ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT SECURITIES LAW OF SUCH JURISDICTION, INCLUDING THE UNITED STATES OF AMERICA, ITS TERRITORIES AND POSSESSIONS, ANY STATE OF THE UNITED STATES OR THE DISTRICT OF COLUMBIA (COLLECTIVELY, THE "UNITED STATES"), AUSTRALIA, NEW ZEALAND, CANADA, JAPAN, THE REPUBLIC OF SOUTH AFRICA, OR ANY OTHER JURISDICTION IN WHICH SUCH PUBLICATION, RELEASE OR DISTRIBUTION IS OR WOULD BE UNLAWFUL. FURTHER, THIS ANNOUNCEMENT IS FOR INFORMATION PURPOSES ONLY, DOES NOT PURPORT TO BE FULL OR COMPLETE AND IS NOT AN OFFER OF SECURITIES IN ANY JURISDICTION. THIS ANNOUNCEMENT HAS NOT BEEN APPROVED BY THE LONDON STOCK EXCHANGE, NOR IS IT INTENDED THAT IT WILL BE SO APPROVED.

This Announcement or any part of it does not constitute or form part of any offer to issue or sell, or the solicitation of an offer to acquire, purchase or subscribe for, any securities in the United States. The Placing Shares have not been and will not be registered under the United States Securities Act of 1933, as amended (the "US Securities Act") or with any securities regulatory authority of any state or jurisdiction of the United States, and may not be offered, sold or transferred, directly or indirectly, in or into the United States except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the US Securities Act and in compliance with any applicable securities laws of any state or other jurisdiction of the United States. There will be no public offering of securities in the United States.

This Announcement may contain and the Company may make verbal statements containing "forward-looking statements" with respect to certain of the Company's plans and its current goals and expectations relating to its future financial condition, performance, strategic initiatives, objectives and results. By their nature, all forward-looking statements involve risk and uncertainty because they relate to future events and circumstances which are beyond the control of the Company, including amongst other things, United Kingdom domestic and global economic business conditions, market-related risks such as fluctuations in interest rates and exchange rates, the policies and actions of governmental and regulatory authorities, the effect of competition, inflation, deflation, the timing effect and other uncertainties of future acquisitions or combinations within relevant industries, the effect of tax and other legislation and other regulations in the jurisdictions in which the Company and its respective affiliates operate, the effect of volatility in the equity, capital and credit markets on the Company's profitability and ability to access capital and credit, a decline in the Company's credit ratings, the effect of operational risks, and the loss of key personnel. As a result, the actual future financial condition, performance and results of the Company may differ materially from the plans, goals and expectations set forth in any forward-looking statements. Any forward-looking statements made in this Announcement by or on behalf of the Company speak only as of the date they are made. Except as required by applicable law or regulation, the Company expressly disclaims any obligation or undertaking to publish any updates or revisions to any forward-looking statements contained in this Announcement to reflect any changes in the Company's expectations with regard thereto or any changes in events, conditions or circumstances on which any such statement is based.

Neither the content of the Company's website (or any other website) nor the content of any website accessible from hyperlinks on the Company's website (or any other website) is incorporated into or forms part of this announcement.

UK Product Governance Requirements

Solely for the purposes of the product governance requirements contained within chapter 3 of the FCA Handbook Product Intervention and Product Governance Sourcebook (the "UK Product Governance Requirements") and disclaiming all and any liability, whether arising in tort, contract or otherwise, which any "manufacturer" (for the purposes of the UK Product Governance Requirements) may otherwise have with respect thereto, the Placing Shares have been subject to a product approval process, which has determined that the Placing Shares are: (i) compatible with an end target market of retail investors and investors who meet the criteria of professional clients and eligible counterparties, each as defined in chapter 3 of the FCA Handbook Conduct of Business Sourcebook ("COBS"); and (ii) eligible for distribution through all permitted distribution channels (the "UK Target Market Assessment"). Notwithstanding the UK Target Market Assessment, distributors should note that: the price of the Placing Shares may decline and investors could lose all or part of their investment; the Placing Shares offer no guaranteed income and no capital protection; and an investment in Placing Shares is compatible only with investors who do not need a guaranteed income or capital protection, who (either alone or in conjunction with an appropriate financial or other adviser) are capable of evaluating the merits and risks of such an investment and who have sufficient resources to be able to bear any losses that may result therefrom. The UK Target Market Assessment is without prejudice to the requirements of any contractual, legal or regulatory selling restrictions in relation to the Placing. Furthermore, it is noted that, notwithstanding the UK Target Market Assessment, the Bookrunner will only procure investors who meet the criteria of professional clients and eligible counterparties.

For the avoidance of doubt, the UK Target Market Assessment does not constitute: (a) an assessment of suitability or appropriateness for the purposes of chapters 9A or 10A respectively of the COBS; or (b) a recommendation to any investor or group of investors to invest in, or purchase, or take any other action whatsoever with respect to Placing Shares. Each distributor is responsible for undertaking its own target market assessment in respect of the shares and determining appropriate distribution channels.

EU Product Governance Requirements

Solely for the purposes of Article 9(8) of Commission Delegated Directive 2017/593 (the "Delegated Directive") regarding the responsibilities of Manufacturers under the Product Governance requirements contained within: (a) Directive 2014/65/EU on markets in financial instruments, as amended ("MiFID II"); (b) Articles 9 and 10 of the Delegated Directive; and (c) local implementing measures (the "MiFID II Product Governance Requirements"), and disclaiming all and any liability, whether arising in tort, contract or otherwise which any "manufacturer" (for the purposes of the MiFID II Product Governance Requirements) may otherwise have with respect thereto, the Placing Shares have been subject to a product approval process, which has determined that the Placing Shares are (i) compatible with an end target market of retail investors and investors who meet the criteria of professional clients and eligible counterparties, each as defined in MiFID II; and (ii) eligible for distribution through all distribution channels as are permitted by MiFID II (the "Target Market Assessment"). Notwithstanding the Target Market Assessment, Distributors (as defined within the MiFID II Product Governance Requirements) should note that: the price of the Placing Shares may decline and investors could lose all or part of their investment; the Placing Shares offer no guaranteed income and no capital protection; and an investment in Placing Shares is compatible only with investors who do not need a guaranteed income or capital protection, who (either alone or in conjunction with an appropriate financial or other adviser) are capable of evaluating the merits and risks of such an investment and who have sufficient resources to be able to bear any losses that may result therefrom. The Target Market Assessment is without prejudice to the requirements of any contractual, legal or regulatory selling restrictions in relation to the proposed Placing. Furthermore, it is noted that, notwithstanding the Target Market Assessment, the Bookrunner will only procure investors who meet the criteria of professional clients and eligible counterparties. For the avoidance of doubt, the Target Market Assessment does not constitute:

(a) an assessment of suitability of appropriateness for the purposes of MiFID II; or

(b) a recommendation to any investor or group of investors to invest in, or purchase, or take any other action whatsoever with respect to the Placing Shares. Each distributor is responsible for undertaking its own target market assessment in respect of the Placing Shares and determining appropriate distribution channels.

Peel Hunt is authorized and regulated by the FCA in the United Kingdom and is acting exclusively for the Company and no one else in connection with the Placing, and Peel Hunt will not be responsible to anyone (including any purchasers of the Placing Shares) other than the Company for providing the protections afforded to its clients or for providing advice in relation to the Placing or any other matters referred to in this Announcement.

Orana Corporate LLP (FRN 835691) is an appointed representative of Ragnar Capital Partners LLP (FRN 593052) who are authorized and regulated by the Financial Conduct Authority in the United Kingdom and is acting exclusively for the Company and no one else in connection with the Placing, and Orana will not be responsible to anyone (including any purchasers of the Placing Shares) other than the Company for providing the protections afforded to its clients or for providing advice in relation to the Placing or any other matters referred to in this Announcement.

No representation or warranty, express or implied, is or will be made as to, or in relation to, and no responsibility or liability is or will be accepted by the Bookrunner or by any of their respective affiliates or agents as to, or in relation to, the accuracy or completeness of this Announcement or any other written or oral information made available to or publicly available to any interested party or their respective advisers, and any liability therefore is expressly disclaimed.