Exhibit 4.1

DESCRIPTION OF SECURITIES

The following description summarizes important terms of our common stock, which is the sole class of securities registered under Section 12 of the Securities Exchange Act of 1934. For a complete description, you should refer to our certificate of incorporation and bylaws, which are incorporated by reference as exhibits to the Annual Report on Form 10-K of which this exhibit is a part, as well as the relevant portions of the Delaware General Corporation Law(the “DGCL”).

General

We are authorized to issue up to 100,000,000 shares of capital stock, which consist of: (i) up to 80,000,000 shares of Class A Common Stock, and up to 10,000,000 shares of Class B Common Stock; and (ii) up to 10,000,000 shares of preferred stock, each with a par value of $0.000001 per share. As of March 31, 2026, there were 14,275,900 shares of Class A Common Stock outstanding and 2,500,000 shares of Class B Common Stock outstanding. No shares of preferred stock are issued or outstanding as of the date of this Annual Report on Form 10-K.

Voting Rights

Holders of Class A Common Stock have voting rights for the election of our directors and all other matters requiring stockholder action, except with respect to amendments to our certificate of incorporation that alter or change the powers, preferences, rights or other terms of any outstanding Class B Common Stock, or preferred stock, if the holders of Class B Common Stock, or such affected series of preferred stock are entitled to vote on such an amendment;

Holders of Class A Common Stock are entitled to one vote per share on matters to be voted on by stockholders and also will be entitled to receive such dividends, if any, as may be declared from time to time by our board of directors in its discretion out of funds legally available therefor;

Dividend Rights

Subject to preferences that may be applicable to any then-outstanding preferred stock, holders of common stock are not entitled to receive ratably those dividends, if any, as may be declared from time to time by the Board out of legally available funds.

Liquidation Rights

In the event of our liquidation, dissolution or winding up, holders of Class A Common Stock will be entitled to receive pro rata all assets remaining available for distribution to stockholders after payment of all liabilities and provision for the liquidation of any shares of preferred stock outstanding at that time.

Other Rights and Preferences

Holders of our common stock have no preemptive, conversion or subscription rights and there are no redemption or sinking fund provisions applicable to the common stock. The rights, preferences and privileges of the holders of Class A Common Stock are subject to, and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that we may designate in the future.

Anti-Takeover Effects of our Certificate of Incorporation, Bylaws and Delaware Law

Our amended and restated certificate of incorporation and amended and restated bylaws include a number of provisions that may have the effect of delaying, deferring or preventing another party from acquiring control of us and encouraging persons considering unsolicited tender offers or other unilateral takeover proposals to negotiate with our board of directors rather than pursue non-negotiated takeover attempts. These provisions include the items described below.

Stockholder Actions by Written Consent

Our amended and restated certificate of incorporation requires that, any action required or permitted to be taken by our stockholders must be effected at a duly-called annual or special meeting of our stockholders and may not be effected by written consent in lieu of a meeting.

Advance Notice Requirements

Our amended and restated bylaws established advance notice procedures with regard to stockholder proposals relating to the nomination of candidates for election as directors or new business to be brought before meetings of our stockholders. These procedures specify that notice of stockholder proposals must be timely given in writing to our corporate secretary prior to the meeting at which the action is to be taken, and define what is considered timely. Our amended and restated bylaws also specify the requirements as to form and content of all stockholder notices. These requirements may preclude stockholders from bringing matters before the stockholders at an annual or special meeting.

Director Removal and Vacancies

Our amended and restated certificate of incorporation requires that any newly created directorship that results from an increase in the number of directors or any vacancy on our board of directors, must be filled solely by the affirmative vote of a majority of the total number of directors then in office, even if less than a quorum, or by a sole remaining director and may not be filled by the stockholders.

Supermajority Voting Requirements

Our amended and restated certificate of incorporation requires the affirmative vote of the holders of at least 66^2/3% in voting power of our stock entitled to vote thereon to (i) amend, alter or repeal our bylaws and adopt new bylaws. or (ii) to amend, alter, change or repeal, or adopt any provision inconsistent with, certain provisions of our certificate of incorporation, and other provisions including the provision precluding stockholder action by written consent, the choice of forum provision, and the limitation of liability provision in our amended and restated certificate of incorporation (as explained below). In addition, the affirmative vote or consent of the holders of at least 66^2/3% of the outstanding shares of Class B Common Stock, voting separately as a class, shall be required for (1) the authorization or issuance of any additional shares of Class B Common Stock and (2) any amendment, alteration or repeal of any of the provisions of the certificate of incorporation which adversely affects the powers, preferences, or rights of Class B Common Stock.

Limitation of Liability and Indemnification of Directors and Officers

Our amended and restated bylaws provides that our directors and officers will be indemnified by us to the fullest extent authorized by Delaware law.

These provisions may discourage stockholders from bringing a lawsuit against our directors for breach of their fiduciary duty. These provisions also may have the effect of reducing the likelihood of derivative litigation against directors and officers, even though such an action, if successful, might otherwise benefit us and our stockholders. Furthermore, a stockholder’s investment may be adversely affected to the extent we pay the costs of settlement and damage awards against directors and officers pursuant to these indemnification provisions. We believe that these provisions and insurance are necessary to attract and retain talented and experienced directors and officers. We intend to enter into separate indemnification agreements with each of our directors and executive officers.

Section 203 of the DGCL

As a Delaware corporation, we will be subject to the provisions of Section 203 of the DGCL. This statute prevents certain Delaware corporations, under certain circumstances, from engaging in a “business combination” with an “interested stockholder.” In general, Section 203 defines an “interested stockholder” as an entity or person who, together with the person’s affiliates and associates, beneficially owns 15% or more of the outstanding voting stock of the corporation.

A “business combination” includes a merger or sale of more than 10% of our assets. However, the above provisions of Section 203 of the DGCL do not apply if:

Listing

Our Class A Common Stock is listed on the Nasdaq Capital Market under the symbol “NOMA”.

Transfer Agent and Registrar

The transfer agent for our securities is Continental Stock Transfer & Trust Company. The transfer agent’s address is One State Street Plaza, 30th Floor New York, New York 10004.