Surrender of Shares and Amendment No. 1 to the Securities Subscription Agreement, dated September30, 2021, between the Registrant and Twelve Seas SponsorIV TMT LLC

Exhibit 10.10

Surrender of Shares

and

Amendment No. 1 to the Securities Subscription Agreement

This Surrender of Shares and Amendment No. 1 to the Securities Subscription Agreement, dated September 30, 2021 (this “Agreement”), is made by and between Twelve Seas Investment Company IV TMT, a Delaware corporation (the “Company”), and Twelve Seas Sponsor IV TMT LLC, a Delaware limited liability company (the “Subscriber”).

WHEREAS, the Company and the Subscriber have entered into that certain Securities Subscription Agreement, dated as of April 20, 2021 (the “Subscription Agreement”), pursuant to which the Subscriber subscribed for an aggregate of 8,625,000 shares of Class B common stock, par value $0.0001 per share of the Company (“Class B Shares”), for an aggregate purchase price of $25,000, and up to 1,125,000 of such Class B Shares are subject to complete or partial forfeiture by the Subscriber if the underwriters of the Company’s initial public offering (the “IPO”) do not fully exercise their over-allotment option as described therein;

WHEREAS, the Subscriber desires to surrender for no consideration 2,875,000 Class B Shares, resulting in an aggregate of 5,750,000 Class B Shares outstanding, up to 750,000 of which are intended to be subject to complete or partial forfeiture by the Subscriber if the underwriters of the Company’s IPO do not fully exercise their over-allotment option as described in the Subscription Agreement;

WHEREAS, as a result of such surrender, the per share purchase price will increase from approximately $0.003 per share to $0.004 per share; and

WHEREAS, the Company and the Subscriber desire to amend the Subscription Agreement to modify the number of Class B Shares subject to forfeiture in connection with the IPO and the Subscriber desires to provide an irrevocable notice of surrender of certain Class B Shares to the Company.

NOW, THEREFORE, in consideration of the mutual conditions and agreements set forth in this Agreement, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows:

“3.1. Partial or No Exercise of the Over-allotment Option. In the event the Over-allotment Option granted to the underwriters of the IPO (the “Underwriters”) is not exercised in full, the Subscriber acknowledges and agrees that it (or, if applicable, it and any transferee of Shares) shall forfeit any and all rights to such number of Shares (up to an aggregate of 750,000 Shares and pro rata based upon the percentage of the Over-allotment Option exercised) such that immediately following such forfeiture, the Subscriber (and all other initial stockholders prior to the IPO, if any) will own an aggregate number of Shares (not including shares of Class A common stock, par value $0.0001 per share, of the Company (“Class A Shares”) issuable upon exercise of any warrants, any Class A Shares issued to the representative of the Underwriters in connection with the IPO or any securities purchased by Subscriber or the representative of the Underwriters in connection with the IPO or in the aftermarket) equal to 20% of the issued and outstanding shares of the Company’s common stock immediately following the IPO.”

[Signature page follows]

IN WITNESS WHEREOF, the undersigned have caused this Agreement to be executed as of the date first written above.

[Signature Page to Surrender of Shares and Amendment No. 1 to the Securities Subscription Agreement]

3