Ad hoc announcement - Inside information pursuant to Article 17 MAR

Heidelberg Pharma AG Plans Capital Increase to Fund Its ATAC Development Program

- Cash capital increase of up to 10% using authorized capital with shareholders' preemptive rights disapplied; private placement with dievini and selected institutional investors

Ladenburg, Germany, 27 April 2020 - The Executive Management Board of Heidelberg Pharma (FSE: WL6) today adopted a resolution, with the approval of the Supervisory Board, to launch a private placement of new shares via an accelerated book building transaction.

Heidelberg Pharma will offer up to 2,820,961 new no-par value bearer shares with a notional interest in the share capital of EUR 1.00 each and full dividend rights as of 1 December 2018 from authorized capital in return for cash contributions, thereby increasing its share capital from EUR 28,209,611.00 by up to EUR 2,820,961.00 to up to EUR 31,030,572.00. The shares will be issued excluding pre-emptive rights and are expected to be admitted to listing on the Frankfurt Stock Exchange following their issuance.

Book building will commence immediately. It is anticipated that books will close on 27 April 2020 in the evening, although the bookrunners reserve the right to close the books at any time.

In its ad hoc release dated 22 January 2020, the Company announced that it had received a financing commitment from dievini, according to which dievini will provide the Company with liquid funds of up to EUR 15 million. Against this background, dievini has declared its willingness that it will acquire any New Shares not subscribed for by institutional investors in the private placements.

Heidelberg Pharma AG plans to use the expected total gross proceeds from the capital increase to secure the further development and marketing of the proprietary ATAC technology (Antibody Targeted Amanitin Conjugates), in particular the clinical development of the proprietary ATAC candidate HDP-101 until mid-2021.

MainFirst Bank AG, Kennedyallee 76, 60596 Frankfurt, Germany, acting as global coordinator and sole bookrunner, will execute the capital increase.

Important notes
This ad hoc announcement does not constitute an offer to sell or a solicitation to buy securities. Specifically, this document does not constitute an offer to sell securities or the solicitation to submit an offer to buy securities in the United States of America, Canada, Japan and Australia. The shares of Heidelberg Pharma AG (the "Shares") may not be offered or sold in the United States of America or to or for the account or benefit of "U.S. persons" (as defined in Regulation S under the U.S. Securities Act of 1933, as amended (the "Securities Act")), unless they have been registered or are exempt from registration under the Securities Act. The shares have not been and will not be registered under the Securities Act. There will be no public offer of shares in the United States of America, Canada, Japan and Australia.

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