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Shareholder’s information

Individual Shareholders

As a Mersen shareholder, you own a part of the Company’s capital.

This entitles you to:

Share price at December 31, 2023



Bearer or registered shares?

Different forms of share ownership are possible. See below all the information to make the right choice.

Registered shares

Since 11 March 2021, SG Securities Services manages the security services of MERSEN.

Your account, previously managed by BP2S, was transferred to Société Générale Securities Services (SGSS) as from the date mentioned above. SGSS will manage all type of operations linked to these services without impacting either the amounts of your assets nor their availability.

Consequently, the Planetshares site is no longer available.

After 10/03/2021 all your requests for operations should be sent to Société Générale Securities Services.

Website: www.sharinbox.societegenerale.com
Hotline number: +33 2 51 85 67 89
Fax number: +33 2 51 85 62 15


Your shares are registered in your name in a register maintained directly by SG Securities Services, Mersen’s account holder.
This type of ownership allows you to:

  • Benefit from the free management of your securities account with no handling fees
  • Be automatically invited to Mersen’s shareholders’ annual general meetings
  • Consult your account anytime using Sharinbox, a secure Internet service provided by SG Securities Services, Mersen’s account holder.

Buy shares and hold them in registered form:

Please contact:

Société Générale Securities Services
32 rue du champ de tir CS30812
44308 Nantes Cedex 3 - FRANCE

Hotline number: +33 2 51 85 67 89
Fax number: +33 2 51 85 62 15

Convert your shares to registered form:

Download and fill in the form.

Once you have completed it, you should simply send it to the financial institution managing your securities account or your PEA equity savings account.

Manage your registered shares:

Visit Sharinbox to:

  • Consult your share plan portfolio
  • Trade your share online
  • Update your personal détails
  • View your transaction history

Your confidential access codes are available in the letter sent to you by SG Securities Services.

Intermediary registered shares

Your share portfolio is managed by your financial intermediary which is responsible for managing your portfolio. However, your shares are registered in Mersen’s accounts, which enables us to be in direct contact with you.

This type of ownership allows you to be automatically invited to Mersen’s shareholders’ annual general meetings.

Bearer shares

Your shares are held in an account managed by the financial institution of your choice. By default, all shares acquired on the stock market are bearer shares.