ANTIN // 2021 Universal Registration Document

INFORMATION ON THE SHARE CAPITAL AND MAJOR SHAREHOLDERS

Information on the share capital

8.1.6 Shares held by the Directors and executive officers of the Company

Pursuant to Article 2.5 of the Internal Rules, each Director and executive officer of the Company shall own at least one (1) Company’s share throughout his or her term of office and, in any case, no later than six months following his or her appointment.

For information about the number of shares held by each Directors and executive officer of the Company as of the date of this Universal Registration Document, see Section 2.3.3 " Biographies of the Directors " of this Universal Registration Document.

8.1.7 Factors likely to have an impact in the event of a tender offer

Pursuant to Article L. 22-10-11 of the French Commercial Code, to the best of the Company’s knowledge, the factors it considers likely to have an impact in the event of a takeover bid or a tender offer are as follows: 3 the Company is jointly controlled by the Partner Shareholders who have entered into the Shareholders’ Agreement and are acting in concert in respect of the Company (see Section 8.1.5 “ Agreements likely to result in a change of control ” of this Universal Registration Document), it being specified that certain restrictions to the transfer of the shares of the Company held by the Partner Shareholders will not apply in the event of a takeover bid; 3 double voting rights are granted to fully paid-up shares for which proof of registration in the name of the same shareholder for at least two years is provided, regardless of the shareholder’s country of citizenship. As of 31 December 2021, no double voting right was conferred to fully paid-up shares (see Section 8.1 “ Information on major shareholders and control ” of this Universal Registration Document);

3 threshold crossings must be declared every 0.5% of share capital and voting rights held (see Section 7.6.6 “ Declaration of thresholds ” of this Universal Registration Document); 3 the delegations of financial authorisations in force at the date of this Universal Registration Document (see Section 8.2.2 “ Financial delegations ”) may be used in the event of a takeover bid; and 3 the authorisation to purchase the shares of the Company which is submitted to the approval of the Annual Shareholders' Meeting to be held on 24 May 2022 (14 th resolution) could not be implemented by the Board of Directors during a period of takeover bid for the Company's shares.

8.2 INFORMATION ON THE SHARE CAPITAL

8.2.1 Instruments giving access to equity

Free share plan The Combined Shareholders' Meeting held on 14 September 2021 has authorised the granting of free shares up to amaximum amount of 5% of the share capital as of the pricing of the IPO after completion of the Contributions. On 23 September 2021 and 11 November 2021, the Board of Directors decided to grant 7,447,629 free shares (1) to ten senior members of the Antin team (other than Alain Rauscher, Mark Crosbie and Mélanie Biessy), representing 4.73% of the share capital as of the pricing of the IPO after completion of the Contributions and 4,27% of the share capital as of the date of this Universal Registration Document. The free shares are subject to (i) a two-year acquisition period from the date of grant and (ii) a lock-up period of three years after their actual acquisition date. However, such lock-up period shall expire with respect to 25% of the free shares after one (1) year as from the acquisition date and an additional 25% after two (2) years from the acquisition date. The free shares are not subject to performance conditions but to an effective presence within Antin.

Employees share purchase plan The Combined Shareholders' Meeting held on 14 September 2021 has authorised the implementation of an employee share purchase plan which consisted in an offer of Company's shares reserved to (i) the employees of Antin members of an employee savings plan ( plan d'épargne entreprise ), (ii) the employees of AISL 2 and others employees of Antin whose participation in the Employee Offering could be subject to specific eligibility conditions in accordance with local applicable regulations. The transaction aimed to involve Antin's employees more closely, both in France and abroad, in Antin’s development and performance. The employee share purchase plan was carried out through a reserved capital increase in accordance with Article L. 3332-18 and seq. of the French Labor Code and limited to a global subscription amount of €8,600,000 (nominal amount and share premium included) and through a reserved capital increase to specific categories of beneficiaries (mainly including employees of AISL 2) and limited to a global subscription amount of €3,670,200 (nominal amount and share premium included).

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(1) 7,033,396 shares granted on 23 September 2021 at a price of €24.0 per share and 414,233 shares granted on 11 November 2021 at a price of €32.8 per share.

201 ANTIN INFRASTRUCTURE PARTNERS S.A. - UNIVERSAL REGISTRATION DOCUMENT 2021