Mubadala May Increase Stake In Ardian
The Diot-Siaci Group, an independent European leader in corporate insurance brokerage, and Ardian, a world-leading private investment firm, have signed a definitive agreement regarding the Group’s new ownership structure.
Upon completion of the transaction, which remains subject to approval by the relevant regulatory and competition authorities, Ardian will become Diot-Siaci’s lead financial shareholder, alongside the Burrus Group, a long-standing shareholder, and the management team.
The new capital structure will establish joint control governance between Ardian and the Burrus Group and Mubadala is renewing its confidence in the Group by increasing its investment alongside Ardian.
As a long-standing shareholder of the Group since 2015, Ardian is now increasing its stake in Diot-Siaci to become its main financial shareholder by acquiring the shares held by Ontario Teachers’ Pension Plan, Bpifrance, Cathay Capital and other minority shareholders.
Building on their shared history and renewed mutual trust, Diot-Siaci’s management team is demonstrating its full commitment to the transaction through a significant reinvestment in the company’s capital.
The management team of Diot-Siaci welcomed Ardian’s full support in accelerating its growth, particularly in major industrial risks, marine insurance, personal insurance, human resources consulting, credit insurance, international mobility, and reinsurance across its key markets in Continental Europe, the UK, Asia, the Middle East and Africa.
With this transaction, the Group reinforces its global capabilities and strengthens its position among the world’s leading industry players. Diot-Siaci’s dynamism, combined with Ardian’s expertise, will help bolster the Group’s long-term growth trajectory.
New Phase of Development
The new capital structure is accompanied by the establishment of joint control governance between Ardian and the Burrus Group, which aims to support this ambitious new phase of growth. The Group will continue to be Co-Chaired by Pierre Donnersberg and Christian Burrus, and led by Cédric Charpentier, Chief Executive Officer.
Thibault Basquin, Co-head & CIO of Buyout and Member of the Executive Committee, Ardian, said that they have ambitious plans to make Diot-Siaci the leading independent insurance and reinsurance brokerage group with European roots.
Olivier Personnaz, Managing Director and Head of Buyout Equity Capital Markets, Buyout, Ardian, said that in addition to the commitment from their Buyout fund, they have successfully raised more than $814.77 million in less than two months from institutional partners to co-invest in this deal, including several sovereign wealth funds and international investors.
“Ardian’s arrival in our capital demonstrates the market’s confidence in the continued development of our Group and its teams, and will enable us to pursue our strategy of strong international growth,” Cédric Charpentier, CEO, Diot-Siaci said.
“This new shareholding structure gives us the means to go even further and continue our growth in high-potential areas of the world,” Pierre Donnersberg & Christian Burrus, Co-Chairs, Diot-Siaci, added.









