Here are the 424B prospectus supplements from Ocean Power Technologies, Inc. (OPTT) in our archive over the last 12 months, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow OPTT and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full OPTT filings page.
Ocean Power Technologies, Inc. registered 366,162 shares of common stock for resale by selling stockholder Columbia Power Technologies, Inc.; Ocean Power will not receive proceeds from those sales. The shares were issued as consideration in an asset acquisition. A portion is subject to trading restrictions for a period after the acquisition closing under the asset purchase agreement. The seller may offer shares at prevailing market prices, prices related to prevailing market prices, or privately negotiated prices.
The acquired portfolio includes intellectual property and engineering work in offshore power, autonomous surface vehicles, maritime sensing, communications and AI-enabled software, and adds a subsea power capability designed to support persistent underwater operations. Ocean Power identifies recurring operating losses, negative cash flows, limited liquidity and an unwaived event of default under its convertible notes as raising substantial doubt about its ability to continue as a going concern. Its last reported common-stock sale price was $2.12 per share on September 22, 2026.
Ocean Power Technologies, Inc. is establishing an at-the-market equity program to sell up to $20,000,000 of common stock from time to time through H.C. Wainwright & Co. as sales agent under an existing $100,000,000 shelf registration. Wainwright will earn a 3.0% commission on gross proceeds and may also act as principal.
The program could add up to 105,263,158 shares at an assumed price of $0.19 per share, bringing total shares outstanding to as many as 364,417,133, subject to market prices and company discretion. As of July 20, 2026, 259,153,975 shares were outstanding against 400,000,000 authorized.
Assuming full ATM usage at $0.19 per share, pro forma as adjusted net tangible book value would be $0.12 per share, creating immediate dilution of about $0.07 per share for new investors. Net proceeds are intended for working capital and general corporate purposes. The company recently acquired assets from Columbia Power Technologies, paying with 10,984,848 shares and agreeing to register their resale.
Ocean Power Technologies, Inc. is offering an aggregate of 25,000,000 shares of common stock together with common warrants to purchase up to 25,000,000 shares, at a combined purchase price of $0.40 per share and accompanying warrant. Each share is sold with one warrant exercisable after six months at an exercise price of $0.40 and expiring six years after initial exercise.
The company estimates net proceeds of approximately $9.3 million before expenses (assuming no warrant exercise), and pro forma as-adjusted net tangible book value per share of $0.09 with immediate dilution to new investors of $0.31 per share. Shares outstanding immediately after the offering are stated as 255,166,826 shares.
Ocean Power Technologies, Inc. is offering $10,000,000 aggregate principal amount of Series C-1 senior convertible notes due 2027. The Notes are convertible at a fixed conversion price of $0.40 per share and mature on October 1, 2027.
The Notes bear interest at 4.5% per annum (rising to 13% per annum during an event of default), amortize quarterly with optional deferral by holders, and include a make-whole feature and various redemption rights on default, bankruptcy or change of control. Conversion and issuance of shares are subject to a 4.99% beneficial ownership limitation (adjustable to 9.99% with 61 days prior notice). Estimated net proceeds are approximately $9.8 million, which the company expects to use to repay specified outstanding convertible notes and for general corporate purposes.