Join Us

Together, let’s ensure OSE’s success

We are a Trio, but we see that many share our perspective.

We are calling for the dismissal of the current Board members because it is in the interest of:

  • all shareholders,
  • employees caught in the middle of this conflict,
  • industrial, scientific, and institutional partners who place their trust in OSE,
  • patients awaiting innovative therapeutic solutions.

Together, we will ensure the success of OSE, it’s Nantes center and its Paris team.

We are fully aware that the current situation is uncomfortable for OSE’s employees and partners, who now find themselves caught between two groups of shareholders they know well, have worked with, and with whom they have personal relationships.

We regret this situation, which would have lasted only a few weeks had the Board of Directors not postponed the General Meeting from its original date of June 25 to September 30.

We know OSE’s employees well. Many of them were recruited between 2012 and 2022, when we were leading OSE, and until June 2024, when Dominique Costantini chaired the Board of Directors. We know their value, and we are proud of their work.

We therefore wish to reassure employees in light of the false intentions attributed to us:

OSE is a Nantes-based company, and, under our leadership, OSE will remain a Nantes-based company.

OSE Shareholders: Vote for Our Resolutions

As founding shareholders, holding 20% of the capital and 24% of the voting rights, we know OSE, its employees, its partners, its product portfolio, and its clinical development programs extremely well.

We care deeply about OSE and believe in its potential.

OSE is a great success story—but it is also at a turning point. When we analyze the company product by product, we do not see its potential and value reflected in its share price.

Fellow OSE shareholders, we invite you to join us and vote for the strategy that has driven OSE’s success: securing a partner to start phase 3 clinical trials on Lusvertikimab as soon as possible.

OSE now faces a strategic choice.

We need a majority of shareholders for OSE to make the right decision—one that requires dismissing the current Board members and appointing new ones.

At the General Meeting on September 30, we invite you to vote with us for the sustainability and future of our company.

We intend to propose the same resolutions as those that had been planned for the General Meeting originally scheduled for June 25.

We will only be able to file our resolutions at the end of August with the Board of Directors of OSE. We will present them here once they have been formally filed.

How to Vote at the September 30 General Meeting

The Board of Directors will be responsible for convening the General Meeting on September 30.

As soon as we have the details, we will post on this site both the procedures for the General Meeting and the voting process.

In the meantime, we reproduce here Article 30 (“Participation in General Meetings – Voting”) of our company’s bylaws.

[link to download the bylaws]

“Any shareholder may take part in general meetings—of whatever nature—either in person, by proxy, or by correspondence.

Proof of the right to participate in general meetings is provided:

  • for registered shares, by their registration in the company’s registered share accounts no later than zero hour, Paris time, on the second business day preceding the meeting;
  • for bearer shares, by their recording in bearer share accounts held by the authorized intermediary, no later than zero hour, Paris time, on the second business day preceding the meeting.

The registration or accounting entry of securities in bearer share accounts held by the authorized intermediary is evidenced by a certificate of participation issued by that intermediary.

However, the Board of Directors may shorten or waive these deadlines, provided that it applies equally to all shareholders.

Shareholders who have not paid up the amounts due on their shares are not entitled to attend the meeting.

The meeting may only deliberate on items included on the agenda. However, it may, in all circumstances, dismiss one or more directors and appoint replacements.

One or more shareholders representing the portion of capital required by law may, in accordance with legal procedures and deadlines, request the inclusion on the agenda of draft resolutions.

In the case of postal voting, only voting forms received by the company three days prior to the date of the meeting will be counted.

In the case of remote voting by electronic ballot, or proxy voting by electronic signature, voting shall take place under the conditions set out in applicable regulations.

Any shareholder may also participate in general meetings by videoconference or by any means of telecommunication permitted by law and regulations, as specified in the meeting notice.

An attendance sheet containing the information required by law shall be prepared for each meeting.”