Company: TOMZ
Filing Date: 2025-12-11
Form Type: 424B5
Source: 0001654954-25-013870
Chunk: 0

Company: TOMI Environmental Solutions, Inc.
Filing Date: 2025-12-11
Form: 424B5
Chunk 0
---
Filed Pursuant to Rule 424(b)(5)

Registration No. 333-291563

PROSPECTUS SUPPLEMENT

(to Prospectus Dated December 8, 2025)

<div align='center'>Up to $20,000,000

and 52,000 Shares of Common Stock

TOMI Environmental Solutions, Inc.</div>

This prospectus supplement, which supplements the accompanying prospectus, relates to the issuance and sale of up to $20,000,000 of shares of our common stock, par value $0.01 per share (the “Shares”), that we may sell to Hudson Global Ventures, LLC (“Hudson Global”), from time to time pursuant to the equity purchase agreement, dated as of November 5, 2025 (the “Purchase Agreement”), that we have entered into with Hudson Global, and an additional 52,000 shares of our common stock being issued to Hudson Global upon the filing of this prospectus as consideration for its commitment to purchase the Shares pursuant to the Purchase Agreement (the “Commitment Shares”).

Hudson Global is an “underwriter” within the meaning of Section 2(a)(11) of the Securities Act of 1933, as amended (the “Securities Act”). Hudson Global has informed us that it intends to sell to the public the Purchase Shares and Commitment Shares that it may purchase from us pursuant to the Purchase Agreement. Such sales will be made on the Nasdaq Capital Market at prices and at terms then prevailing or at prices related to the then current market price. See “The Hudson Global Transaction” for a description of the Purchase Agreement and additional information regarding Hudson Global.

The purchase price for the Shares will be based upon formulas set forth in the Purchase Agreement and will fluctuate based on the market price of our common stock at the time we submit a purchase notice to Hudson Global. We will pay the expenses incurred in connection with the issuance of the shares of our common stock. See “Plan of Distribution” for more information.

Our common stock is listed on The Nasdaq Capital Market, or Nasdaq, under the symbol “TOMZ.” On December 10, 2025, the last sale price of our common stock as reported on Nasdaq was $0.7806 per share.

As of the date of this prospectus supplement, the aggregate market value of our outstanding common stock held by non-affiliates, or our public float, was approximately $15,105,036, based on 15,388,178