Vanda Pharmaceuticals Inc.

CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS

Various statements in this press release, including, but not limited to, the guidance provided under “2026 Financial Guidance” above and statements regarding Vanda’s plans for pursuit of FDA approval of imsidolimab for the treatment of GPP, and the related timeline for approval; Vanda’s expectations with respect to its continued growth and ability to create value; Vanda’s clinical development plans and expected timelines for BYSANTITM for the treatment of MDD, NEREUSTM in the prevention of vomiting induced by GLP-1 therapies, and VQW-765 in the treatment of adults with social anxiety disorder; and Vanda’s expectations with respect to the strength of its business are “forward-looking statements” under the securities laws. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. Forward-looking statements are based upon current expectations and assumptions that involve risks, changes in circumstances and uncertainties. Important factors that could cause actual results to differ materially from those reflected in Vanda’s forward-looking statements include, among others, Vanda’s ability to continue to grow its business; the FDA’s ability to complete its review of, and reach a decision with respect to, the BLA for imsidolimab by December 12, 2026; Vanda’s ability to successfully execute the commercial launches of NEREUSTM for the prevention of vomiting induced by motion and BYSANTI™ for the treatments of bipolar I disorder and schizophrenia; Vanda’s ability to continue to advance its late-stage clinical development programs and to obtain regulatory approval for, and successfully commercialize, the late-stage products in development; Vanda’s ability to complete the clinical study for BYSANTITM for the treatment of MDD and receive results in in the first quarter of 2027; Vanda’s ability to complete the Thetis study and receive results in 2026; and Vanda’s ability to complete the clinical study for VQW-765 in the treatment of adults with social anxiety disorder and receive results by the end of 2026. Therefore, no assurance can be given that the results or developments anticipated by Vanda will be realized or, even if substantially realized, that they will have the expected consequences to, or effects on, Vanda. Forward-looking statements in this press release should be evaluated together with the various risks and uncertainties that affect Vanda’s business and market, particularly those identified in the “Cautionary Note Regarding Forward-Looking Statements”, “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of Vanda’s most recent Annual Report on Form 10-K, as updated by Vanda’s subsequent Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other filings with the U.S. Securities and Exchange Commission, which are available atwww.sec.gov.

All written and verbal forward-looking statements attributable to Vanda or any person acting on its behalf are expressly qualified in their entirety by the cautionary statements contained or referred to herein. Vanda cautions investors not to rely too heavily on the forward-looking statements Vanda makes or that are made on its behalf. The information in this press release is provided only as of the date of this press release, and Vanda undertakes no obligation, and specifically declines any obligation, to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.