Antin Infrastructure Partners: Crossing of the 90% Threshold Downward

Antin Infrastructure Partners' press release of September 21, 2026 announces that the group of historical shareholders crossed below the 90% threshold of voting rights on September 14, 2026. This change results from an off-market sale of shares.

As of that date, the group held 146,553,759 shares, representing 81.79% of the share capital, and 288,282,545 voting rights, equivalent to 89.76% of the voting rights. Alain Rauscher, with 31.94% of the share capital, was the largest shareholder, followed by Mark Crosbie with 16.44%.

This threshold crossing is also notified in accordance with Article 234-5 of the AMF's General Regulation. These movements are consistent with the company's trading history, which began in September 2021 on Euronext Paris.