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Form 8-K

sec.gov

8-K — SUPERNUS PHARMACEUTICALS, INC.

Accession: 0001356576-26-000015

Filed: 2026-04-22

Period: 2026-04-22

CIK: 0001356576

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Results of Operations and Financial Condition

Documents

8-K — supn-20260422.htm (Primary)

EX-99.1 (ex-99104x22xearningscallan.htm)

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8-K

8-K (Primary)

Filename: supn-20260422.htm · Sequence: 1

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 22, 2026

Supernus Pharmaceuticals, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-35518 20-2590184

(State or other jurisdiction of incorporation or organization)

(Commission File Number)

(I.R.S. Employer Identification No.)

9715 Key West Ave

Rockville

MD

20850

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s telephone number, including area code: (301) 838-2500

Not Applicable

(Former name or former address, if changed since last report.)

Securities registered pursuant to Section 12(b) of the Exchange Act

Title of each class Trading Symbol Name of each exchange on which registered

Common Stock, $0.001 par value per share SUPN The Nasdaq Stock Market LLC

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On April 22, 2026, Supernus Pharmaceuticals, Inc. issued a press release announcing that it will report its business results for the first quarter of 2026 after the market closes on Tuesday, May 5, 2026. The Company will host a conference call and webcast on Tuesday, May 5, 2026 at 4:30 p.m. E.T. to discuss its first quarter 2026 financial and business results. A copy of this press release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Description

99.1

Press Release dated April 22, 2026 filed as an Exhibit pursuant to Item 2.02 hereof.

104 The cover page from this Current Report on Form 8-K, formatted in Inline XBRL.

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SUPERNUS PHARMACEUTICALS, INC.

DATED: April 22, 2026 By: /s/ Timothy C. Dec

Timothy C. Dec

Senior Vice President and Chief Financial Officer

3

EX-99.1

EX-99.1

Filename: ex-99104x22xearningscallan.htm · Sequence: 2

Document

Exhibit 99.1

Supernus Pharmaceuticals to Announce First Quarter 2026 Financial Results and Host Conference Call on May 5, 2026

ROCKVILLE, Md., April 22, 2026 – Supernus Pharmaceuticals, Inc. (Nasdaq: SUPN), a biopharmaceutical company focused on developing and commercializing products for the treatment of central nervous system (CNS) diseases, today announced that it will report first quarter 2026 financial and business results after the market closes on Tuesday, May 5, 2026.

Jack Khattar, President and CEO, and Tim Dec, Senior Vice President and CFO, will host a conference call and webcast on Tuesday, May 5, 2026, at 4:30 p.m. ET to discuss these results. Following management’s prepared remarks and discussion of business results, the call will be open for questions.

A live webcast will be accessible in the Events & Presentations section of the Company’s Investor Relations website at www.supernus.com/investors.

Participants may also pre-register any time before the call here. Once registration is completed, participants will be provided a dial-in number with a personalized conference code to access the call. Please dial in 15 minutes prior to the start time.

Following the live call, a replay will be available on the Company's Investor Relations website at www.supernus.com/investors. The webcast will be available on the Company’s website for 60 days following the live call.

About Supernus Pharmaceuticals, Inc.

Supernus Pharmaceuticals is a biopharmaceutical company focused on developing and commercializing products for the treatment of central nervous system (CNS) diseases.

Our diverse neuroscience portfolio includes approved treatments for attention-deficit hyperactivity disorder (ADHD), dyskinesia in Parkinson's disease (PD) patients receiving levodopa-based therapy, hypomobility in PD, postpartum depression (PPD), epilepsy, migraine, cervical dystonia, and chronic sialorrhea. We are developing a broad range of novel product candidates for CNS disorders.

For more information, please visit www.supernus.com.

Forward-Looking Statements

This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements do not convey historical information but relate to predicted or potential future events that are based upon management's current expectations. These statements are subject to risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. In addition to the factors mentioned in this press release, such risks and uncertainties include, but are not limited to, the Company's ability to sustain and increase its profitability; the Company's ability to raise sufficient capital to fully implement its corporate strategy; the implementation of the Company's corporate strategy; the Company's future financial performance and projected expenditures; the Company's ability to increase the number of prescriptions written for each of its products, and the products of its subsidiaries; the Company's ability to increase its net revenue from its products, and the products of its subsidiaries; the Company's ability to commercialize its products, and the products of its subsidiaries the Company's ability to enter into future collaborations with pharmaceutical companies and academic institutions or to obtain funding from government agencies; the Company's product research and development activities, including the timing and progress of the Company's clinical trials, and projected expenditures; the Company's ability to receive, and the timing of any receipt of, regulatory approvals to develop and commercialize the Company's product candidates; the Company's ability to protect its intellectual property and the intellectual property of its subsidiaries and operate its business without infringing upon the intellectual property rights of others; the Company's expectations regarding federal, state and foreign regulatory requirements; the therapeutic benefits, effectiveness and safety of

the Company's product candidates; the accuracy of the Company's estimates of the size and characteristics of the markets that may be addressed by its product candidates; the Company's ability to increase its manufacturing capabilities for its products and product candidates; the Company's projected markets and growth in markets; the Company's product formulations and patient needs and potential funding sources; the Company's staffing needs; changes to laws and regulations applicable to our industry, the impact of macroeconomic factors, such as economic downturns or uncertainty, international conflict, trade disputes and tariffs; and other risk factors set forth from time to time in the Company's filings with the Securities and Exchange Commission made pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended. The Company undertakes no obligation to update the information in this press release to reflect events or circumstances after the date hereof or to reflect the occurrence of anticipated or unanticipated events.

CONTACTS:

Jack A. Khattar, President and CEO

Timothy C. Dec, Senior Vice President and CFO

Supernus Pharmaceuticals, Inc.

(301) 838-2591

Or

INVESTOR CONTACT:

Peter Vozzo

ICR Healthcare

(443) 213-0505

peter.vozzo@icrhealthcare.com

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