Allego Investor Presentation Deck

Capital Structure Security Description Shares held by Madeleine Shares held by E8 Investor Public Shares and Other Shares Founder/Sponsor Shares PIPE Shares Total Shares Outstanding Public Warrants Total Warrants Allego> Outstanding (0/S) 197,837,067 41,097,994 2,442,531 13,800,000 12,000,000 267,177,592 13,799,948 13,799,948 % of O/S Shares or Warrants 74.0% 15.4% 0.9% 5.2% 4.5% 100.0% 100.0% 100.0% Source: Company Information as of June 6, 2022. Approx % Subject to Lock-Up 98.5% 100% 100% Key Lock-Up Terms (for applicable securities) With respect to the E8 Part B Company Shares (as defined in the Registration Rights Agreement) and the Madeleine shares not acquired through the PIPE, other than with the consent of the Allego Board, Madeleine and E8 have agreed not to Transfer (as defined in the Registration Rights Agreement) securities received by it pursuant to the Business Combination Agreement until the date that is 180 days after the Closing (September 12, 2022) or earlier if, subsequent to the Closing, (a) the last sale price of the Allego Ordinary Shares equals or exceeds $12.00 per share for any 20 trading days within any 30-trading day period commencing at least 120 days after the Closing (July 14, 2022) or (b) Allego consummates a liquidation, merger, stock exchange or other similar transaction which results in all of Allego's shareholders having the right to exchange their Allego Ordinary Shares for cash, securities or other property. For clarity, Madeleine's 3,000,000 PIPE Shares are not subject to the lock-up described above. Not applicable Subject to certain exceptions set forth in the Amendment to the Letter Agreement, Spartan's Sponsor and the other parties to the Amendment to the Letter Agreement dated as of July 28, 2021 by and between Spartan, the Spartan's Sponsor and certain executive officers and directors of Spartan's Sponsor have agreed not to Transfer (as defined in the Amendment to the Letter Agreement) any Allego Ordinary Shares until (i) six months after the Closing (September 16, 2022) or (ii) earlier if (a) the last reported sale price of Allego Ordinary Shares equals or exceeds $12.00 per share for any 20 trading days within a 30-day trading period commencing at least 120 days after the Closing Date (July 14, 2022), (b) Allego consummates a subsequent liquidation, merger, stock exchange or other similar transaction which results in all Allego's shareholders having the right to exchange their shares of Allego Ordinary Shares for cash, securities, or other property or (c) the Allego Board determines that the earlier termination of such restrictions is appropriate. Not applicable Warrants became exercisable 30 days after the completion of the business combination, so long as registration statement with respect to the shares underlying the Public Warrants is effective and a prospectus relating thereto is current. 41

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