XOMA Announces Closing of Depositary Shares Offering and Exercise of Underwriters’ Option

Raised aggregate gross proceeds of $40 million

Depositary shares represent an interest in 8.375% Series B Cumulative Perpetual Preferred Stock

EMERYVILLE, Calif., April 12, 2021 (GLOBE NEWSWIRE) -- XOMA Corporation (Nasdaq: XOMA) (“XOMA” or the “Company”) today announced the closing of its previously announced underwritten registered public offering of 1,600,000 depositary shares, each representing a 1/1000^th fractional interest in a share of the Company’s 8.375% Series B Cumulative Perpetual Preferred Stock, with liquidation preference equivalent to $25.00 per depositary share. The offering resulted in net proceeds of approximately $38.0 million after deducting underwriting discounts and commissions, but before expenses. The Company expects to use the net proceeds of this offering to fund the segregated dividend account and the remaining net proceeds for general corporate purposes, including funding future acquisitions of milestone and royalty rights associated with drug development programs with third-party funding. The depositary shares will be listed on Nasdaq under the symbol “XOMAO” and are expected to begin trading within 30 days.

Book-running managers for this offering were B. Riley Securities, Inc., National Securities Corporation, Ladenburg Thalmann & Co. Inc., and William Blair & Company. Co-managers were Aegis Capital Corp., Boenning & Scattergood, Inc., Incapital LLC, and Northland Capital Markets.

The depositary shares were offered under the Company’s shelf registration statement on Form S-3, which was declared effective by the U.S. Securities and Exchange Commission (“SEC”). The offering of these depositary shares was made only by means of a prospectus supplement and accompanying base prospectus, which were filed with the SEC. A copy of the prospectus and prospectus supplement relating to these securities may be obtained on the website of the SEC at http://www.sec.gov or from the offices of B. Riley Securities, Inc., 1300 17th Street North, Suite 1300, Arlington, Virginia 22209, or by telephone at (703) 312-9580 or by emailing prospectuses@brileyfin.com.

This press release does not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of the depositary shares in any state or jurisdiction in which such offer, solicitation, or sale would not be permitted.

About XOMA Corporation
XOMA has built a significant portfolio of products that are licensed to and being developed by other biotech and pharmaceutical companies. The Company’s portfolio of partner-funded programs spans multiple stages of the drug development process and across various therapeutic areas. Many of these licenses are the result of XOMA’s pioneering efforts in the discovery and development of antibody therapeutics. The Company’s royalty-aggregator business model includes acquiring additional milestone and royalty rights associated with drug development programs with third-party funding.

Safe Harbor Statement / Explanatory Notes
This release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and such forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. “Forward-looking statements” describe future expectations, plans, results, or strategies and are generally preceded by words such as “anticipates,” “expect,” “may,” “plan” or “will”. Forward-looking statements include, without limitation, projections, predictions, expectations, or beliefs about future events or results and are not statements of historical fact, including statements regarding the terms and conditions of the offering, expected timing of the trading of depositary shares on Nasdaq, and the intended use of proceeds. You are cautioned that such statements are subject to a multitude of risks and uncertainties that could cause future circumstances, events, or results to differ materially from those projected in the forward-looking statements, including the availability of, and participation in, financing opportunities. These and other risks are identified in our filings with the Commission, including without limitation our Annual Report on Form 10-K for the year ended December 31, 2020, and in other filings subsequently made by the Company with the Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made and are based on management’s assumptions and estimates as of such date. We do not undertake any obligation to publicly update any forward-looking statements, whether as a result of the receipt of new information, the occurrence of future events or otherwise.

EXPLANATORY NOTE: Any references to “portfolio” in this press release refer strictly to milestone and/or royalty rights associated with a basket of drug products in development. Any references to “assets” in this press release refer strictly to milestone and/or royalty rights associated with individual drug products in development. References to royalties or royalty rates strictly refer to future potential payment streams regardless of whether or not they are technically defined as royalties in the underlying contractual agreement; further, any rates referenced herein are subject to potential future contractual adjustments.

As of the date of this press release, all assets in XOMA’s milestone and royalty portfolio are investigational compounds. Efficacy and safety have not been established. There is no guarantee that any of these assets will become commercially available.