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): November 8, 2017

Supernus Pharmaceuticals, Inc.

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of
Incorporation)

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

Not Applicable

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

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):

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

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

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

o 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). o

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. o

Item 8.01                                           Other Events.

On November 8, 2017, Supernus Pharmaceuticals, Inc. (the “Company”) issued a press release announcing that the Company’s management will present an overview and update of the Company and host investor meetings at the Stifel 2017 Healthcare Conference on November 14, 2017; the Jefferies 2017 London Healthcare Conference on November 16, 2017 and the Piper Jaffray 29th Annual Healthcare Conference on November 29, 2017.  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)                                 Exhibit

The following document is furnished as an Exhibit pursuant to Item 8.01 hereof:

Exhibit 99.1 — Press Release Dated November 8, 2017.

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EXHIBIT INDEX

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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.

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Exhibit 99.1

Supernus to Present at Three November Healthcare Conferences

ROCKVILLE, Md., Nov. 08, 2017 — Supernus Pharmaceuticals, Inc. (NASDAQ: SUPN), a specialty pharmaceutical company focused on developing and commercializing products for the treatment of central nervous system diseases, today announced that the Company’s management will present an overview and update for the Company, and host investor meetings at the following three conferences:

Stifel 2017 Healthcare Conference

Date: Tuesday, November 14, 2017

Time: 11:45 a.m. EST
Place: Lotte New York Palace Hotel, New York

Jefferies 2017 London Healthcare Conference

Date: Thursday, November 16, 2017

Time: 4:40 p.m. GMT (11:40 a.m. EST)
Place: Waldorf Hilton, London, U.K.

Piper Jaffray 29th Annual Healthcare Conference

Date: Wednesday, November 29, 2017

Time: 8:00 a.m. EST
Place: Lotte New York Palace Hotel, New York

Investors interested in arranging a meeting with the Company’s management during these conferences should contact the conference coordinator.

A live webcast of the presentation can be accessed by visiting ‘Events & Presentations’ in the Investors Section on the Company’s website at www.supernus.com. An archived replay of these webcasts will be available for 60 days on the Company’s website after each conference.

About Supernus Pharmaceuticals, Inc.

Supernus Pharmaceuticals, Inc. is a specialty pharmaceutical company focused on developing and commercializing products for the treatment of central nervous system diseases. The Company currently markets Trokendi XR® (extended-release topiramate) for the prophylaxis of migraine and the treatment of epilepsy, and Oxtellar XR® (extended-release oxcarbazepine) for the treatment of epilepsy. The Company is also developing several product candidates to address large market opportunities in psychiatry, including SPN-810 for the treatment of Impulsive Aggression in ADHD patients and SPN-812 for the treatment of ADHD.

CONTACT:

Jack A. Khattar, President and CEO

Gregory S. Patrick, Vice President and CFO

Supernus Pharmaceuticals, Inc.

Tel: (301) 838-2591

Or

Investor Contact:

Peter Vozzo

Westwicke Partners

Office: (443) 213-0505

Mobile: (443) 377-4767

Email: peter.vozzo@westwicke.com