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Supernus completes merger, requests Nasdaq delisting

Nasdaq was asked to suspend trading in Supernus common stock before the November 2, 2026 market opening.

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Form Type
8-K

Rhea-AI Filing Summary

Supernus Pharmaceuticals, Inc. (SUPN) completed the Merger on November 2, 2026, and notified Nasdaq. The company asked Nasdaq to file Form 25 to delist its common stock and deregister it under Section 12(b). After Form 25 becomes effective, Supernus intends to file Form 15 seeking deregistration under Section 12(g) and suspension of its reporting obligations under Sections 13 and 15(d). The common stock will no longer be listed on any national securities exchange.

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Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing Securities
The company received a delisting notice, failed to satisfy a continued-listing rule or standard, or transferred its listing.
Notification of Removal from Listing and/or Registration on Form 25 regulatory
"file with the SEC a Notification of Removal from Listing and/or Registration on Form 25"
Form 15 regulatory
"file with the SEC a certification on Form 15"
A Form 15 is a short filing a public company uses with the U.S. Securities and Exchange Commission to stop or pause its routine public reporting requirements when it meets certain legal thresholds (such as a low number of public shareholders) or other qualifying conditions. Investors should care because filing one typically means less public financial information and lower trading liquidity—similar to a shop taking down its public notice board, making it harder to track performance and buy or sell shares.
deregistration regulatory
"deregistration of the Supernus Common Stock under Section 12(b)"
Deregistration is when a company officially removes itself from a stock exchange or regulatory list, meaning it is no longer publicly traded. This can happen if the company is shrinking or choosing to go private, and it matters because it changes how investors can buy or sell its shares.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Will SUPN stock remain listed after the merger?

No. Supernus common stock will no longer be listed on any national securities exchange. The company asked Nasdaq to file Form 25 to effect the delisting and deregistration under Section 12(b).

AI-generated analysis. How Rhea-AI works. Not financial advice.

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false 0001356576 0001356576 2026-11-02 2026-11-02 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

 

 

 

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 2, 2026

 

 

SUPERNUS PHARMACEUTICALS, INC.

(Exact name of Registrant as Specified in Its Charter)

 

 

Delaware   001-35518   20-2590184
(State or other jurisdiction
of incorporation)
  (Commission
File Number)
  (IRS Employer
Identification No.)

 

9715 Key West Avenue
Rockville, Maryland
  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)

 

 

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:

 

¨ 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).

 

Emerging growth company ¨

 

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. ¨

 

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

 

Title of each class   Trading
Symbol(s)
  Name of each exchange
on which registered
Common Stock, $0.001 par value per share   SUPN   The Nasdaq Stock Market LLC

 

 

 

 

 

Item 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

 

In connection with the consummation of the Merger on November 2, 2026, Supernus Pharmaceuticals, Inc. (the “Company”) notified Nasdaq of the completion of the Merger and requested that Nasdaq (i) suspend trading of the Supernus Common Stock, effective prior to the opening of trading on November 2, 2026, and (ii) file with the SEC a Notification of Removal from Listing and/or Registration on Form 25 to effect the delisting of the Supernus Common Stock from Nasdaq and the deregistration of the Supernus Common Stock under Section 12(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Following the effectiveness of such Form 25, the Company intends to file with the SEC a certification on Form 15 requesting the deregistration of the Supernus Common Stock under Section 12(g) of the Exchange Act and the suspension of the Company’s reporting obligations under Sections 13 and 15(d) of the Exchange Act. As a result of the Merger, the Supernus Common Stock will no longer be listed on any national securities exchange.

 

 

 

 

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.
   
Date: November 2, 2026 By: /s/ Timothy C. Dec
    Timothy C. Dec
    Senior Vice President and Chief Financial Officer

 

 

 

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