Gimv portfolio company Prosonix to be acquired by Circassia Pharmaceuticals

15/05/2015 - 08:18 | Portfolio

Today, Gimv announced that portfolio company Prosonix (Oxford, UK) is to be acquired by Circassia Pharmaceuticals PLC (, a clinical-stage specialty biopharmaceutical company listed on London Stock Exchange (Ticker: CIR.L). The transaction consists of an upfront payment in cash of GBP 70 million and a deferred payment related to regulatory approval for one of Prosonix’ lead products. The transaction is subject to a successful fundraising by Circassia Pharmaceuticals in the coming weeks.

Prosonix ( is a specialty pharmaceutical company developing a portfolio of inhaled respiratory medicines using its own particle engineering technology. Prosonix’ lead products include high value generic drugs for asthma and for chronic obstructive pulmonary disease. In addition to its internal respiratory pipeline, Prosonix has established a number of co-development partnerships with other companies to leverage its expertise and technology towards the further development of inhaled drugs for respiratory and other indications.

Gimv is shareholder of Prosonix since the series B equity financing round in May 2012, in which the company received financing from a syndicate of life science investors including Gimv.

Karl Nägler, Partner at Gimv Health & Care, commented on this transaction: “Since our investment in 2012, Prosonix took a huge step forward in its development: a progressed pipeline, a significant licensing deal for its lead product PSX1001 and excellent operational progress. We were happy to support Prosonix in its transformation from a technology provider to own-pharmaceutical product development. We are confident that the company forms an excellent fit with Circassia Pharmaceuticals.”

Bart Diels, Head of Gimv Health & Care, adds: “After Actogenix, Covagen and Prosensa, Prosonix is the fourth successful biopharma exit for the Health & Care platform in less than a year. It confirms the overall activity level in the sector and the continuing interest of large biopharma players to buy innovative companies. The Health & Care team is currently working on a pipeline of new investments and is looking forward to continue to support promising biotech companies.”

The transaction consists of an upfront and a deferred payment. Based on the upfront payment, the sale already has a positive impact of EUR 7.6 million (EUR 0.30 per share) on Gimv’s last published equity value at 31 December 2014. Over the entire investment period, the shareholding’s return is well above Gimv’s historic average. No further financial details on this transaction will be disclosed.

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