T Stamp Inc

On March 9, 2026, Trust Stamp Malta Limited, a wholly-owned subsidiary of T Stamp Inc. (the “Company”), entered into a Share Purchase Agreement (the “SPA”) with CyberFish CyberPsychology Solutions Ltd, a private company incorporated in England and Wales (“CyberFish”). Pursuant to the SPA, Trust Stamp Malta Limited agreed to subscribe to fifty percent (50%) of the authorized share capital of CyberFish in exchange for £190,000 (the “Total Consideration”), consisting of (i) a cash payment of €30,000 payable to Malta Enterprise on behalf of CyberFish and (ii) a cash payment of £30,000 payable to CyberFish (together, the “Cash Consideration”) and (iii) non-cash consideration with an agreed value equal to the remaining balance of the Total Consideration following deduction of the Cash Consideration, comprising the provision of software development, engineering, and related technical services by Trust Stamp Malta Limited and/or other Company group entities. Malta Enterprise is a Maltese national development agency that previously provided CyberFish a start-up loan, which is partly being repaid as part of this transaction.

On March 9, 2026, the SPA closed, and Trust Stamp Malta Limited acquired 50% of CyberFish in exchange for the consideration described above. The non-cash consideration became effective as of the closing date and was not a condition to the closing of the SPA.

Berta Pappenheim, a member of the Company’s Board of Directors, is the CEO, co-founder, and a director of CyberFish – and prior to the closing of the SPA, she owned 100% of CyberFish.

Also on the March 9, 2026, in connection with the closing of the SPA, and to govern the parties’ ongoing relationship as shareholders of CyberFish, Trust Stamp Malta Limited entered into a Shareholders Agreement (the “Shareholders Agreement”) with (i) Berta Pappenheim and (ii) CyberFish. The Shareholders Agreement contains provisions governing, among other things, the governance and management of CyberFish, board composition and voting, shareholder consent matters, information and reporting rights, financing expectations, and transfer restrictions with respect shares of CyberFish.

Also on March 9, 2026, Trust Stamp Malta Limited entered into a Consulting Agreement (the “Consulting Agreement”) with CyberFish. Under the Consulting Agreement, CyberFish agreed to provide consulting services relating to market development in the United Kingdom, including market entry and expansion strategy, business development, partnership identification, and related services. CyberFish designated Berta Pappenheim as key personnel to perform the services on its behalf. The Consulting Agreement contemplates that the services will be performed for an average of three (3) days per week over a rolling six-week period. In consideration for the services, Trust Stamp Malta Limited will pay CyberFish fees of £65,000 per year, payable in twelve equal monthly installments. Either party may terminate the Consulting Agreement upon 30 days’ prior written notice, and Trust Stamp Malta Limited may terminate the Consulting Agreement immediately upon certain events, including material breach, breach of confidentiality, certain legal or compliance impediments, or misconduct or gross negligence, in each case as provided in the Consulting Agreement. The Consulting Agreement includes customary confidentiality provisions and provides that intellectual property created pursuant to or in connection with the services will vest exclusively in Trust Stamp Malta Limited, subject to the terms of the Consulting Agreement.

Channel Partnership Agreement

On April 17, 2025, the Company entered into a Channel Partnership Agreement with CyberFish, a company at which one of the Company's Directors serves as Chief Executive Officer. Pursuant to the agreement, CyberFish engages Trust Stamp to sell CyberFish services to Trust Stamp’s clients, customers and users. The term of this agreement commenced on April 17, 2025 and continues for two (2) years unless terminated as provided under the agreement. If the agreement has not been terminated, it shall be automatically renewed. Trust Stamp will be entitled to a commission equal to thirty percent

(30%) of the net revenue received by CyberFish from sales of the services made directly by Trust Stamp to customers. The Company has not earned any commissions pursuant to the CyberFish agreement to date. As of December 31, 2025 and December 31, 2024, the CyberFish commission due was $0.

QID Technologies, LLC

On November 12, 2024, the Company entered into a business arrangement with Qenta under which Qenta and Trust Stamp formed a subsidiary, QID Technologies LLC. The Company and QID entered into a license and assignment agreement and a Master Technology Services Agreement. The Company and Qenta are related parties in that Qenta and DQI Holdings Inc. (“DQI”) have a common owner and DQI has an ownership interest in Trust Stamp. The Company and QID transactions are included in Accounts receivable, Investment, Net revenue, and Net loss from equity method investment.

Mutual Channel Agreement

On November 15, 2020, the Company entered into a Mutual Channel Agreement with Vital4Data, Inc., a company at which one of our Directors serves as Chief Executive Officer. Pursuant to the agreement, the Company engaged Vita4Data, Inc. as a non-exclusive sales representative for the Company’s products and services. Vital4Data, Inc. is entitled to compensation in the form of commissions, receiving a 20% of commission-eligible on net revenue from sales generated by Vital4Data, Inc. in the first year of the contract term, which is reduced to 10% in the second year, and 5% in the third year. The Company has not earned or expensed any commissions pursuant to the Vital4Data, Inc. agreement to date.