Beta Bionics Announces Closing of $172.5 Million Public Offering of Common Stock

IRVINE, Calif., Sept. 17, 2026 (GLOBE NEWSWIRE) -- Beta Bionics, Inc. (Nasdaq: BBNX) today announced the closing of its previously announced underwritten public offering of 7,652,175 shares of its common stock at a price to the public of $17.25 per share and, in lieu of shares of common stock to certain investors, pre-funded warrants to purchase 1,043,484 shares of common stock at a purchase price of $17.2499 per share, which equals the public offering price per share of the common stock less the $0.0001 exercise price per share of each pre-funded warrant. In addition, the underwriters exercised their option in full and purchased 1,304,348 additional shares of common stock. Including the option exercise, the aggregate gross proceeds from this offering were $172.5 million, before deducting underwriting discounts and commissions and offering expenses payable by Beta Bionics.

Beta Bionics expects to use the net proceeds from this offering for general corporate purposes, which may include costs associated with the commercialization of Mint^™, including expansion of Beta Bionics’ manufacturing facilities, research and development and clinical development, investment in product enhancements, potential strategic opportunities and working capital and operating expenses.

J.P. Morgan, Piper Sandler, Wells Fargo Securities and Leerink Partners acted as the joint book-running managers for the offering.

The shares of common stock and pre-funded warrants described above were offered by Beta Bionics pursuant to a shelf registration statement on Form S-3 that was filed by Beta Bionics with the Securities and Exchange Commission (SEC) on February 24, 2026 and automatically became effective upon filing. A final prospectus supplement related to the offering has been filed with the SEC and is available on the SEC’s website located at http://www.sec.gov. Copies of the final prospectus supplement and the accompanying prospectus related to this offering may be obtained from J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, New York 11717, or by email at prospectus-eq_fi@jpmchase.com and postsalemanualrequests@broadridge.com; or from Piper Sandler & Co., 350 North 5th Street, Suite 1000, Minneapolis, Minnesota 55401, Attention: Prospectus Department, by telephone at (800) 747-3924, or by email at prospectus@psc.com; or from Wells Fargo Securities, LLC, Attention: Wells Fargo Securities, 90 South 7th Street, 5th Floor, Minneapolis, Minnesota 55402, by telephone at 800-645-3751 (option #5), by email at WFScustomerservice@wellsfargo.com; or from Leerink Partners LLC, Attention: Syndicate Department, 53 State Street, 40th Floor, Boston, Massachusetts 02109, by telephone at (800) 808-7525, ext. 6105, or by email at syndicate@leerink.com.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy these securities, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.

About Beta Bionics
Beta Bionics, Inc. is a commercial-stage medical device company engaged in the design, development, and commercialization of innovative solutions to improve the health and quality of life of insulin-requiring people with diabetes (PWD) by utilizing advanced adaptive closed-loop algorithms to simplify and improve the treatment of their disease. The iLet Bionic Pancreas is the first FDA-cleared insulin delivery device that autonomously determines every insulin dose and offers the potential to substantially improve overall outcomes across broad populations of PWD.

Cautionary Note on Forward-Looking Statements
Certain statements in this press release are forward-looking statements that involve a number of risks and uncertainties. These statements may be identified by introductory words such as “may,” “expects,” “goal,” “intend,” “will,” “would,” “subject to” or words of similar meaning, or by the fact that they do not relate strictly to historical or current facts. Such forward-looking statements include statements regarding Beta Bionics’ expectations with respect to the use of proceeds from the offering. For such statements, Beta Bionics claims the protection of the Private Securities Litigation Reform Act of 1995. Actual events or results may differ materially from Beta Bionics’ expectations. Factors that could cause actual results to differ materially from the forward-looking statements include, but are not limited to, those factors disclosed in Beta Bionics’ filings with the SEC, including its Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on February 24, 2026, as updated by its Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, filed with the SEC on July 29, 2026, and other filings that Beta Bionics may make from time to time with the SEC. These forward-looking statements represent Beta Bionics’ judgment as of the time of this release. Beta Bionics disclaims any intent or obligation to update these forward-looking statements, other than as may be required under applicable law.

Investor Relations:
Blake Beber
Head of Investor Relations
ir@betabionics.com

Media and Public Relations:
Felicia Sanborn
Vice President of Marketing
media@betabionics.com