On June 16, 2017, 107.3 m shares were listed on SIX.

In June 2017, 11.8 m shares issued through the conversion of the first tranche of the convertible loan provided by Cilag Holding AG, an indirect subsidiary of Johnson & Johnson, were listed. In November 2021, a second tranche of the convertible loan was converted and Cilag acquired 9.6 m shares of the Group. The remaining amount of the convertible loan may be converted into 29.1 m shares.

In July 2018, the Group privately placed 11.9 m new registered shares. Concurrently to the private placement of new shares, the Group issued CHF 200 m of senior unsecured convertible bonds, which were due to mature on July 17, 2024. On May 6, 2024, bondholders approved amendments to the terms of the bonds. The approved bond terms include an amended conversion price of CHF 6.00, extended maturity date of January 17, 2025, and the option to call the bonds at par, in full or in part, at any time upon giving ten trading days' notice.

In May 2020, the Group privately placed 11 m new registered shares.

In October 2020, the Group issued 23.8 m new registered shares.

In August 2021, the Group placed CHF 600 m senior unsecured convertible bonds due 2028 convertible into 19.0 m shares of the Group.

In January 2023, the Group created 10 m treasury shares.

Idorsia Ltd is part of the following indices: SPI, SPIEX, SPI ESG, SXSLI, SXI Life Sciences, SXI Bio+Medtech, and SSIRT.

Idorsia is traded under the following symbols: Reuters IDIA.S / Bloomberg IDIA:SW.

Covering analysts

Several financial institutions are covering Idorsia: 

Bank Analyst
Baader Helvea Leonildo Delgado
Bank of America Sachin Jain
Citi Peter Verdult
Deutsche Bank Emmanuel Papadakis
Goldman Sachs Rajan Sharma
H.C. Wainwright & Co Raghuram Selvaraju
Jefferies Brian Balchin
J.P. Morgan James Gordon
Kepler Cheuvreux Justine Telliez
Morgan Stanley Thibault Boutherin
Octavian Laura Pfeifer-Rossi
Van Lanschot Kempen Sushila Hernandez


IDIA SIX Swiss Exchange

2024-06-24 12:06:33 CET

2.10 CHF

+0.06 (+3.14 %)

Key Share Data

as of March 31, 2024

Shares outstanding

188.8 million

Closing share price

CHF 2.83

Market capitalization

CHF 534 million

52-week high

CHF 10.37

52-week low

CHF 1.29

YTD price change

CHF 0.75 (33.77%)

Average volume


Free float

109.7 million shares

Major Shareholders

As of March 31, 2024, the company has been notified of the following shareholdings amounting to 3% or more of the company’s ordinary share capital:

Shareholder Position

Jean-Paul & Martine Clozel


UBS Group AG


Cilag Holding AG


Idorsia (treasury shares)


Rudolf Maag


UBS Fund Management


* Based on the share capital listed on SIX Swiss Exchange as of March 31, 2024

** As per the latest significant shareholder notifications available from the platform of the Disclosure Office of SIX Swiss Exchange

How To Buy Stock

Idorsia shares are traded on the SIX Swiss Stock Exchange. Investors wishing to become a shareholder in Idorsia should contact their local bank with the following information:

Reuters / Bloomberg: IDIA.S / IDIA:SW
Exchange: SIX, Switzerland
ISIN: CH0363463438
Swiss security number: 36 346 343

Bank staff will then be able to use this information to execute the transaction.

How To Register Shares

As part of our continued efforts towards good corporate governance we encourage shareholders to exercise their voting rights at the Annual General Meeting (AGM) of Idorsia Ltd.

The registration of shares is not mandatory under Swiss law. Therefore, registered shares are not automatically registered in our Share Register.

Idorsia has mandated areg.ch to administer its Share Register. Investors wishing to register their shares are kindly asked to contact their prime custodian (e.g. your banker or broker) to request a share registration form. After completing the form, your custodian will send it to areg.ch who will then take care of the registration. The custodian will receive a confirmation directly from areg.ch once the registration has taken place.