Summary of the subscription for Series Y shares

Current report no. 12/2026

Date of preparation: 19 March 2026

Subject: Summary of the subscription for Series Y shares

Legal basis: Article 17(1) MAR – inside information

 

The Management Board of Captor Therapeutics S.A., with its registered office in Wrocław (the “Company”), announces the completion of the subscription for 800,000 Series Y ordinary bearer shares of the Company (“the Shares”), issued as part of a book-building process that began on March 2, 2026.

The issuance of the Shares was conducted via a private placement.

Start and end dates of the subscription.

Subscription start date: March 2, 2026 (the date on which the Company’s Extraordinary General Meeting adopted a resolution regarding the issuance of the Shares);

Subscription end date: March 10, 2026 (the date of execution of the last agreement for the subscription of the Shares).

Date of allocation of the Shares.

Not applicable. The Shares were acquired through a private subscription; therefore, no allocation of shares within the meaning of the Commercial Companies Code took place. The date of conclusion of the last Share subscription agreement was March 10, 2026.

Number of Shares covered by the subscription.

The subscription covered 800,000 Shares.

Reduction rate in individual tranches, if in at least one tranche the number of allocated Shares was less than the number of Shares subscribed for.

Not applicable. Due to the nature of the subscription, no reduction occurred. The Shares were subscribed for as part of a private placement, and therefore no subscriptions were submitted for the Shares. All persons to whom offers to enter into Share subscription agreements were made entered into such agreements with the Company.

Number of Shares for which the subscription offer was accepted.

Under the subscription, offers to subscribe for Shares covering a total of 800,000 Shares were accepted.

Number of Shares subscribed for under the subscription.

Under the subscription, agreements to subscribe for Shares were concluded covering a total of 800,000 Shares.

The price at which the Shares were subscribed for (purchased).

The Shares were subscribed for at a price of PLN 82.00 (eighty-two zlotys) each.

Number of persons who subscribed for securities covered by the subscription or sale in individual tranches or accepted a proposal to purchase or an offer to subscribe for securities covered by the subscription

Share subscription agreements were concluded with 20 entities.

Number of persons who entered into Share subscription agreements as part of the subscription in individual tranches.

Share subscription agreements were not concluded on a tranche-by-tranche basis.

Name (business name) of the underwriters who subscribed for Shares under the underwriting agreements, specifying the number of Shares they subscribed for, along with the actual price per Share, constituting the issue or sale price, after deducting the underwriting fee for the subscription of Shares, in performance of the underwriting agreement, acquired by the underwriter.

Not applicable; the Company did not enter into a underwriting agreement.

The value of the subscription, understood as the product of the number of Shares covered by the offer and the issue price.

PLN 65,600,000.00 (sixty-five million six hundred thousand zlotys).

The total amount of costs included in the issuance costs, specifying the amounts of costs by category, along with the methods of accounting for these costs in the financial records and the manner of their recognition in the issuer’s financial statements.

Due to the lack of a final settlement of the costs of the Share Offering as of the date of submission of this report, the Company will prepare and make publicly available a separate current report regarding the final amount of issuance costs, including costs by category, as well as the method of accounting for these costs in the Company’s books and the manner of their recognition in the Company’s financial statements after receiving and accepting all invoices from entities involved in the preparation and execution of the Share Offering.

Average cost of conducting the subscription per Share subject to subscription.

The Company shall prepare and make publicly available a separate report regarding the average cost of conducting the subscription incurred by the Company per Share, after receiving and accepting all invoices from the entities involved in the preparation and execution of the Share Offering.

Method of payment for the subscribed (acquired) Shares, including detailed information, in the event that the subscription occurred through set-off of claims, or in the event that the subscription occurred in exchange for non-cash contributions.

The Shares were paid for with cash contributions (by transferring funds to the appropriate bank account).