c/o Vertical Data Inc., 1980 Festival Plaza Drive, Suite 300, Las Vegas, Nevada 89135.

Head of Business Development of the Issuer.

During the last five years, the Reporting Person has not been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

During the last five years, the Reporting Person has not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

The Reporting Person is a citizen of Canada.

85,000 of the shares of Common Stock reported in this statement were acquired as founder shares on May 3, 2024, at $0.0001 per share, and 80,000 shares were acquired in the Issuer's Seed B financing, in each case prior to the registration of the Common Stock under Section 12 of the Securities Exchange Act of 1934, as amended. 625,000 shares were acquired on January 23, 2026 upon exercise of stock options granted by the Issuer, at an exercise price of $0.05 per share paid from personal funds. 300,000 shares were acquired in settlement of accrued fees for services rendered to the Issuer, at $0.50 per share, and 14,850 shares were acquired in settlement of accrued compensation, at $3.03 per share. No cash consideration was paid for those shares. The amounts reported also include 90,307 shares issuable upon exercise of stock options exercisable within 60 days of the date of this statement, at an exercise price of $0.05 per share.

The Reporting Person acquired the securities reported in this statement as founder shares, in the Issuer's Seed B financing, upon exercise of stock options granted by the Issuer, and as compensation for services rendered to the Issuer. The Reporting Person holds those securities for investment. The Reporting Person serves as Head of Business Development of the Issuer and is an officer of the Issuer within the meaning of Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended. The Reporting Person is not a director of the Issuer. The Reporting Person previously reported beneficial ownership of the Common Stock on a Schedule 13G filed pursuant to Rule 13d-1(c). This statement on Schedule 13D is filed pursuant to Rule 13d-1(e) because the Reporting Person has ceased to be eligible to report on Schedule 13G. The Reporting Person expects to acquire additional securities of the Issuer from time to time as compensation for services and upon exercise of outstanding stock options, and may acquire or dispose of securities of the Issuer depending upon market conditions, the financial position and prospects of the Issuer and other factors. Except as set forth in this Item 4, the Reporting Person does not have, as of the date of this statement, any plans or proposals that relate to or would result in any of the actions specified in clauses (a) through (j) of Item 4 of Schedule 13D. The Reporting Person intends to review the investment in the Issuer on a continuing basis and may, at any time and from time to time, formulate other purposes, plans or proposals regarding the Issuer or the Common Stock.

7.8%. The percentages reported are based on 15,206,716 shares of Common Stock outstanding, consisting of the 15,018,494 shares outstanding as reported in the Issuer's records together with the 188,222 shares issued upon settlement of the restricted stock units granted September 17, 2026, plus, for each Reporting Person, the shares issuable to that Reporting Person upon exercise of stock options exercisable within 60 days.

1,195,157 shares, as to all of which the Reporting Person has sole voting power and sole dispositive power.

No transactions in the Common Stock were effected by the Reporting Person during the past sixty days. The most recent acquisition of Common Stock by the Reporting Person occurred on May 26, 2026.

No person other than the Reporting Person has the right to receive, or the power to direct the receipt of, dividends from, or the proceeds from the sale of, the Common Stock reported in this statement.

Not applicable.

The Reporting Person holds equity awards granted by the Issuer under the Vertical Data Inc. 2024 Stock Incentive Plan, consisting of stock options evidenced by Stock Option Notices and restricted stock units evidenced by a Restricted Stock Unit Award Agreement. The Reporting Person is party to a Common Stock Purchase Agreement with the Issuer dated May 3, 2024, which contains lock-up restrictions prohibiting transfer for 365 days following the effective date of any registration statement filed by the Issuer under the Securities Act, followed by a leak-out schedule releasing the shares over the subsequent 24 months, together with a right of the Issuer to purchase shares upon an involuntary transfer during the lock-up period. None of the securities reported in this statement are pledged or otherwise subject to a contingency the occurrence of which would give another person voting power or investment power over such securities.

99.1 Common Stock Purchase Agreement dated May 3, 2024 between the Issuer and the Reporting Person. 99.2 Stock Option Notice. 99.3 Stock Option Adjustment Letter Agreement dated September 5, 2025. 99.4 Restricted Stock Unit Award Agreement.