Our Bond Inc 美股招股说明书（2026年3月2日版）

PROSPECTUS SUPPLEMENTDated March 2, 2026 Our Bond, Inc. Up to 34,073,681 Shares of Common Stockto be Sold by Registered Stockholders This prospectus supplement (the “Supplement”) modifies, supersedes and supplements certain information contained in, andshould be read in conjunction with, our Prospectus filed with the SEC dated January 30, 2026 (the “Prospectus”), related to theregistration of the resale of up to 34,073,681 shares of our common stock, par value $0.0001 per share, by our stockholders identified This Supplement is not complete without, and may not be delivered or used except in connection with, the Prospectus. Our shares of common stock are listed on the Nasdaq Global Market under the symbol “OBAI.” The information contained in this Supplement modifies and supersedes, in part, the information in the Prospectus. Anyinformation that is modified or superseded in the Prospectus shall not be deemed to constitute a part of the Prospectus, except asmodified or superseded by this Supplement. We may amend or supplement the Prospectus from time to time by filing amendments or Investing in our securities involves a high degree of risk. See “Risk Factors” beginning on page 7 of the Prospectus andin documents incorporated by reference into the Prospectus. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved ofthese securities or determined if this Supplement, or the Prospectus is truthful or complete. Any representation to the contrary FORWARD-LOOKING STATEMENTS You should carefully consider the risk factors set forth in the Prospectus, as well as the other information contained in orincorporated by reference into this Supplement and the Prospectus. This Supplement and the Prospectus and documents incorporatedtherein by reference contain forward-looking statements regarding events, conditions, and financial trends that may affect our plan ofoperation, business strategy, operating results, and financial position. You are cautioned that any forward-looking statements are notguarantees of future performance and are subject to risks and uncertainties. Actual results may differ materially from those included WARRANT AMENDMENT This Supplement is being filed to disclose an amendment to certain warrants to purchase shares of our common stock held by On March 1, 2026, we entered into Amendment No. 1 (the “Amendment”) to the terms of one of our outstanding Warrants toPurchase Shares of Common Stock issued October 27, 2025 (the “Warrant”). As originally issued, the Warrant provided for thepurchase of up to 16,000,000 shares of our common stock at an exercise price of $12.35 per share, with an expiration date of July 27, Under the Amendment, the exercise price of the Warrants for a total of 12,000,000 shares of common stock has been reducedas follows: ●The exercise price for 4,500,000 shares of common stock purchasable under the Warrant has been reduced to $2.25 per share for aperiod of ninety (90) days; ●The exercise price for 3,750,000 shares of common stock purchasable under the Warrant has been reduced to $2.75 per share for aperiod of ninety (90) days; and ●The exercise price for 3,750,000 shares of common stock purchasable under the Warrant has been reduced to $3.25 per share for aperiod of ninety (90) days. Following the expiration of the reduced exercise price periods described above, the exercise price for the Warrants will revertto the original price of $12.35 per share as set forth in the original Warrants. The date of this Prospectus Supplement is March 2, 2026