Form 8-K

8-K — SUPERNUS PHARMACEUTICALS, INC.

Accession: 0001356576-26-000020

Filed: 2026-05-05

Period: 2026-05-05

CIK: 0001356576

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — supn-20260505.htm (Primary)

EX-99.1 (ex991earningsrelease.htm)

GRAPHIC — LOGO (supernuslogo.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: supn-20260505.htm · Sequence: 1

supn-20260505

false000135657600013565762026-05-052026-05-05

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): May 5, 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

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 May 5, 2026, Supernus Pharmaceuticals, Inc. (“Supernus” or the “Company”) issued a press release regarding its financial results for the first quarter ended March 31, 2026. A copy of this press release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference.

As previously announced, Supernus is hosting a conference call at 4:30 p.m. Eastern Time on Tuesday, May 5, 2026, to present the business and financial results. A live webcast is available at www.supernus.com. The webcast will be archived on the Company’s website for 60 days following the live call.

The information in Items 2.02 (including Exhibit 99.1) is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, whether made before or after the date of this report, except as shall be expressly set forth by specific reference in such filing.

This Current Report on Form 8-K contains “forward-looking statements” that do not convey historical information, but relate to predicted or potential future events, such as statements of our plans, strategies and intentions. These statements can often be identified by the use of forward-looking terminology such as “believe,” “expect,” “intend,” “may,” “will,” “should,” or “anticipate” or similar terminology. All statements other than statements of historical facts included in this Current Report on Form 8-K are forward-looking statements. All forward-looking statements speak only as of the date of this Current Report on Form 8-K. Except for Supernus’ ongoing obligations to disclose material information under the federal securities laws, Supernus undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. In addition to the risks and uncertainties of ordinary business operations and conditions in the general economy and the markets in which Supernus competes, the forward-looking statements of Supernus contained in this Current Report on Form 8-K are also subject to various risks and uncertainties, including those set forth in Item 1A, “Risk Factors,” in Supernus’ Annual Report on Form 10-K for the fiscal year ended December 31, 2025 which the Company filed on March 2, 2026, 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.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit Description

99.1

Press Release dated May 5, 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.

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: May 5, 2026 By: /s/ Timothy C. Dec

Timothy C. Dec

Senior Vice President and Chief Financial Officer

EX-99.1

Filename: ex991earningsrelease.htm · Sequence: 2

Document

Exhibit 99.1

Supernus Announces First Quarter 2026 Financial Results

•Total revenues were $207.7 million in the first quarter 2026, a 39% increase compared to same period last year.

•Combined revenues of the Company's four growth products increased to $149.1 million in the first quarter 2026, representing an increase of 56% compared to the same period last year. This strong growth was driven by an increase in net sales of Qelbree® and GOCOVRI®, and the addition of sales from ZURZUVAE® and ONAPGO™.

•Regulatory submission to the FDA for second supplier for ONAPGO expected in third quarter 2026, with potential approval by mid-year 2027.

•The Company reiterates full year 2026 financial guidance.

ROCKVILLE, Md., May 5, 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 financial results for the first quarter 2026 and associated Company developments.

“Our first quarter results reflect a strong start to the year, including a 56% year-over-year increase in combined revenues of our growth products,” said Jack Khattar, President and CEO of Supernus. “We have positive momentum across our business, and I look forward to continued strong growth and execution of our key products throughout the year.”

Commercial Highlights

•ONAPGO net product sales were $8.4 million in the first quarter of 2026, reflecting resumption of new patient initiation in February 2026. Since the launch in April 2025, and through the end of April 2026, approximately 2,200 enrollment forms have been submitted by more than 645 prescribers. The Company expects to file a regulatory submission to the U.S. Food and Drug Administration (FDA) for a second supplier for ONAPGO in the third quarter of 2026, with potential FDA approval for the second supplier by mid-year 2027.

•Collaboration revenue from ZURZUVAE was $27.6 million in the first quarter of 2026. Collaboration revenue represents 50% of the net revenues for ZURZUVAE recorded by Biogen Inc. First quarter 2026 U.S sales of ZURZUVAE, as reported by Biogen Inc., increased approximately 100% compared to the same period in 2025. The total number of prescriptions for ZURZUVAE increased by 82% in the first quarter of 2026 compared to the same period last year.

•Net sales of Qelbree increased 20% to $77.9 million in the first quarter of 2026, compared to the same period in 2025, driven primarily by volume growth. Total IQVIA prescriptions(6) for Qelbree were 254,824 for the first quarter 2026, representing an increase of 19% compared to the same period last year. The total number of prescribers reached an all-time high of approximately 43,000 in the first quarter of 2026.

•Net sales of GOCOVRI increased 15% to $35.2 million in the first quarter of 2026, compared to the same period in 2025. Total number of prescriptions grew by 7% in the first quarter of 2026 compared to the same period last year.

Product Pipeline Update

SPN-817 – Novel first-in-class highly selective AChE inhibitor for epilepsy

•The Phase 2b randomized, double-blind, placebo-controlled study of 3mg and 4mg twice daily doses is ongoing with a targeted enrollment of approximately 258 adult patients with treatment resistant focal seizures.

SPN-820 – Novel first-in-class molecule that increases mTORC1 mediated synaptic function for depression

•The Phase 2b multi-center, randomized, double-blind, placebo-controlled trial in approximately 200 adults with major depressive disorder (MDD). The study will examine the safety and tolerability of SPN-820 2400 mg given intermittently (twice weekly) as an adjunctive treatment to the current baseline antidepressant therapy, as well as assess the rapid onset of improvement in depressive symptoms.

SPN-443 – Novel stimulant for attention-deficit/hyperactivity disorder (ADHD)

•The Company expects to initiate a Phase 1 single-ascending/multiple-ascending dose study in adult healthy volunteers in the second half of 2026.

Financial Highlights

This section includes information on non-GAAP financial measures. See "Non-GAAP Financial Information" section for information on non-GAAP financial measures. In addition, a reconciliation of applicable GAAP to non-GAAP financial information is included at the end of this press release.

Revenues

The following table provides information regarding total revenues (dollars in millions):

Three Months Ended

March 31,

2026 2025 Change %

(unaudited)

Net product sales

Qelbree $ 77.9 $ 64.7 20%

GOCOVRI 35.2 30.7 15%

Trokendi XR®

9.5 12.8 (26)%

ONAPGO 8.4 — 100%

APOKYN®

7.7 15.0 (48)%

Oxtellar XR®

7.4 10.2 (27)%

Other(2)

4.7 8.6 (46)%

Total net product sales

150.8 142.0 6%

Collaboration revenue (ZURZUVAE) (3)

27.6 — 100%

Total revenues from commercial products (Non-GAAP) (1) (4)

178.4 142.0 26%

Royalty, licensing and other revenues(5)

29.3 7.8 274%

Total revenues $ 207.7 $ 149.8 39%

Total revenues from commercial products (non-GAAP)(1)(4) represent revenues from our product sales to customers and through our collaboration agreement with Biogen.

Other Financial Highlights

•The Company recognized $20.0 million of licensing revenue in the first quarter of 2026 related to the achievement of a commercial milestone under its collaboration agreement with Shionogi.

•Operating loss was $8.3 million for the first quarter of 2026, compared to an operating loss of $10.3 million for the same period in 2025. The change was primarily due to higher revenues and a lower change in contingent consideration loss in the 2026 period, partially offset by an increase in selling, general, and administrative expenses associated with the collaboration agreement with Biogen Inc., an increase in research and development costs related to clinical program costs

on SPN-817, which includes a $10.0 million expense to former Biscayne security holders, and an increase in intangible asset amortization expense for ZURZUVAE and ONAPGO intangible assets in 2026.

•Adjusted operating earnings (non-GAAP)(1) were $28.7 million in the first quarter of 2026, compared to $25.9 million for the same period in 2025.

•Net loss and diluted loss per share were $2.3 million and $0.04 for the first quarter of 2026, respectively, compared to net loss and diluted loss per share of $11.8 million and $0.21 for the same period in 2025.

•Cash, cash equivalents, and current marketable securities were approximately $384.2 million as of March 31, 2026, compared to $308.7 million as of December 31, 2025. This increase was primarily due to cash generated from operations and the aforementioned commercial milestone.

Full Year 2026 Financial Guidance

For the full year 2026, the Company reiterates its full year financial guidance as set forth below (dollars in millions):

Current Guidance (as of February 24, 2026)

Total revenues include the following(7):

◦ONAPGO net sales of $45 million - $70 million

◦Trokendi XR and Oxtellar XR net sales of $40 - $50 million

$840 - $870

Combined R&D and SG&A expenses

$620 - $650

Operating earnings

$0 - $30

Adjusted operating earnings (non-GAAP)(1)

$140 - $170

Non-GAAP Financial Information

This press release contains financial measures that present financial information which do not comply with United States generally accepted accounting principles (GAAP). The non-GAAP financial measures should be considered in addition to, not as a substitute for or in isolation from, or superior to measures prepared in accordance with GAAP. Non-GAAP adjusted operating earnings on a historical and projected basis adjusts for non-cash share-based compensation expense, depreciation and amortization, intangible asset impairment charges and changes to fair value of contingent consideration, and for factors that are unusual, non-recurring or unpredictable, and excludes those costs, expenses, and other specified items presented in the reconciliation tables in this press release. We also present total revenues excluding net sales of Trokendi XR (GAAP) and Oxtellar XR (GAAP), which is a non-GAAP measure and is calculated as total revenues (GAAP) less net product sales of Trokendi XR (GAAP) and Oxtellar XR (GAAP). Beginning in the year a product loses exclusivity due to generic entrants, we generally do not expect net product sales of such products to constitute a significant part of our revenue in the future. We also present total revenues from commercial products, which is also a non-GAAP measure and is calculated as the combined total of total net product sales (GAAP) and collaboration revenues (GAAP). We believe that the use of non-GAAP financial measures provides useful supplemental information to management, investors, analysts and others regarding the Company's revenue and results of operations and assist management, investors, analysts, and others in understanding and evaluating our revenue growth and the performance of the business.

There are limitations associated with the use of non-GAAP financial measures and therefore comparability may be limited. These limitations include: non-GAAP financial measures that may not be entirely comparable to similarly titled measures used by other companies; these may not reflect all items of income and expense, as applicable, that affect our operations; there may be potential differences among calculation methodologies; these may differ from the non-GAAP information used by other companies, including peer companies. We mitigate these limitations by reconciling the non-GAAP financial measure to the most comparable GAAP financial measure. Investors are encouraged to review the reconciliation. The Company's 2026 financial guidance is also being provided on both a GAAP and a non-GAAP basis.

End Notes

(1) See the section titled "Non-GAAP Financial Information" for information about this non-GAAP financial measure. A reconciliation of each non-GAAP financial measure to the most directly comparable GAAP financial measure is included at the end of this press release.

(2) Includes net product sales of MYOBLOC®, XADAGO® and Osmolex ER®.

(3) Represents proportionate share of collaboration revenue from Biogen’s sales of ZURZUVAE to customers in the U.S. from July 31, 2025, the closing of the acquisition of Sage Therapeutics, Inc.

(4) Total revenues from commercial products, a non-GAAP measure, represents revenues from our product sales to customers and through our collaboration agreement with Biogen.

(5) Royalty, licensing, and other revenues include royalties on generic Trokendi XR, Oxtellar XR, other licensed products and intellectual property.

(6) IQVIA data restatement July 1, 2025.

(7) Includes net product sales, collaboration revenue, and royalty, licensing, and other revenue.

Conference Call Details

Supernus will host a conference call and webcast today, May 5, 2026, at 4:30 p.m. Eastern Time to discuss these results. A live webcast will be available in the Events & Presentations section of the Company's Investor Relations website 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 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.

Supernus Pharmaceuticals, Inc.

Condensed Consolidated Balance Sheets

(in thousands, except share and per share data)

March 31, December 31,

2026 2025

(unaudited)

Assets

Current assets

Cash and cash equivalents $ 184,869 $ 128,448

Marketable securities 199,372 180,222

Accounts receivable, net 182,183 187,802

Inventories, net 87,062 82,385

Prepaid expenses and other current assets 78,094 65,325

Total current assets 731,580 644,182

Restricted cash 1,450 1,450

Property and equipment, net 10,042 10,531

Intangible assets, net 549,712 569,456

Goodwill 120,668 124,882

Deferred income tax assets, net 30,820 38,351

Other assets 56,453 63,796

Total assets $ 1,500,725 $ 1,452,648

Liabilities and stockholders' equity

Current liabilities

Accounts payable and accrued liabilities $ 101,244 $ 107,800

Accrued product returns and rebates 189,720 161,097

Contingent consideration, current portion — 31,052

Other current liabilities 82,965 38,222

Total current liabilities 373,929 338,171

Contingent consideration, long-term 206 206

Operating lease liabilities, long-term 30,267 30,365

Other liabilities 19,518 22,192

Total liabilities 423,920 390,934

Stockholders' equity

Common stock, $0.001 par value; 130,000,000 shares authorized; 58,039,721 and 57,457,462 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively

58 57

Additional paid-in capital 561,419 543,825

Accumulated other comprehensive loss, net of tax (255) (44)

Retained earnings 515,583 517,876

Total stockholders' equity 1,076,805 1,061,714

Total liabilities and stockholders' equity $ 1,500,725 $ 1,452,648

Supernus Pharmaceuticals, Inc.

Condensed Consolidated Statements of Loss

(in thousands, except share and per share data)

Three Months Ended

March 31,

2026 2025

(unaudited)

Revenues

Net product sales $ 150,753 $ 141,988

Collaboration revenue (ZURZUVAE) 27,643 —

Royalty, licensing, and other revenues 29,309 7,836

Total revenues 207,705 149,824

Costs and expenses

Cost of revenues(a)

23,391 15,763

Research and development 39,438 26,927

Selling, general and administrative 125,173 89,944

Amortization of intangible assets 25,644 19,786

Contingent consideration loss 2,391 7,660

Total costs and expenses 216,037 160,080

Operating loss (8,332) (10,256)

Other income (expense)

Interest and other income, net 2,382 4,425

Total other income (expense), net 2,382 4,425

Loss before income taxes (5,950) (5,831)

Income tax expense (benefit) (3,657) 5,996

Net loss $ (2,293) $ (11,827)

Loss per share

Basic $ (0.04) $ (0.21)

Diluted $ (0.04) $ (0.21)

Weighted average shares outstanding

Basic 57,647,548 55,864,692

Diluted 57,647,548 55,864,692

(a) Excludes amortization of intangible assets.

Supernus Pharmaceuticals, Inc.

Reconciliations of GAAP to Non-GAAP Financial Information

(unaudited)

Reconciliation of GAAP Total revenues to Non-GAAP Total revenues excluding Trokendi XR and Oxtellar XR net sales

An itemized reconciliation between total revenues on a GAAP basis and total revenues excluding Trokendi XR and Oxtellar XR net sales, a non-GAAP measure, is as follows (dollars in millions):

Three Months Ended

March 31,

2026 2025 Change %

Total revenues (GAAP)(a)

$ 207.7 $ 149.8 39%

Adjustments:

Trokendi XR net product sales (9.5) (12.8) (26)%

Oxtellar XR net product sales (7.4) (10.2) (27)%

Total revenues excluding Trokendi XR and Oxtellar XR net sales (non-GAAP)

$ 190.8 $ 126.8 50%

___________________________________________

(a) Includes net product sales, collaboration revenue, and royalty, licensing, and other revenues.

Reconciliation of GAAP Net Product Sales to Non-GAAP Revenues from Commercial Products

An itemized reconciliation between Net product sales on a GAAP basis and total revenues from commercial products, a non-GAAP measure, is as follows (dollars in millions):

Three Months Ended

March 31,

2026 2025 Change %

Net product sales (GAAP)

$ 150.8 $ 142.0 6%

Adjustments:

Collaboration revenue (ZURZUVAE)

27.6 — 100%

Total revenues from commercial products

$ 178.4 $ 142.0 26%

Total revenues from commercial products, a non-GAAP measure, represents revenues from our product sales to customers and through our collaboration agreement with Biogen.

Reconciliation of GAAP Operating Earnings (Loss) to Non-GAAP Adjusted Operating Earnings

An itemized reconciliation between operating earnings (loss) on a GAAP basis and adjusted operating earnings on a non-GAAP basis is as follows (dollars in millions):

Three Months Ended

March 31,

2026 2025

Operating loss - As Reported (GAAP) $ (8.3) $ (10.3)

Adjustments:

Amortization of intangible assets 25.6 19.8

Share-based compensation

8.5 8.1

Contingent consideration loss (gain) 2.4 7.7

Depreciation 0.5 0.6

Operating earnings - As Adjusted (non-GAAP) $ 28.7 $ 25.9

_________________________________________

Non-GAAP adjusted operating earnings adjusts for non-cash items, which include amortization of intangible assets, share-based compensation expense, change in fair value of contingent consideration, and depreciation.

Reconciliation of Full Year 2026 Financial Guidance - GAAP Operating Earnings to Non-GAAP Adjusted Operating Earnings

An itemized reconciliation between projected operating earnings on a GAAP basis for the full year 2026 and projected adjusted operating earnings on a non-GAAP basis for the full year 2026 is as follows (dollars in millions):

Full Year 2026 Guidance

(as of February 24, 2026)

Operating earnings - GAAP

$0 - $30

Adjustments:

Amortization of intangible assets $105

Share-based compensation

$35

Contingent consideration loss

Depreciation $3

Operating earnings - As Adjusted (non-GAAP)

$140 - $170

CONTACTS:

Jack A. Khattar, President and CEO

Timothy C. Dec, Senior Vice President and CFO

Supernus Pharmaceuticals, Inc.

(301) 838-2591

INVESTOR CONTACT:

Peter Vozzo

ICR Healthcare

(443) 213-0505

peter.vozzo@icrhealthcare.com

GRAPHIC — LOGO

GRAPHIC

Filename: supernuslogo.jpg · Sequence: 6

Binary file (19991 bytes)

Download supernuslogo.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 8

v3.26.1

Cover Page

May 05, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

May 05, 2026

Entity Registrant Name

Supernus Pharmaceuticals, Inc.

Entity Incorporation, State or Country Code

Entity Filer Name

001-35518

Entity Tax Identification Number

20-2590184

Entity Address, Address Line One

9715 Key West Ave

Entity Address, City or Town

Rockville

Entity Address, State or Province

Entity Address, Postal Zip Code

20850

City Area Code

301

Local Phone Number

838-2500

Title of 12(b) Security

Common Stock, $0.001 par value per share

Trading Symbol

SUPN

Security Exchange Name

NASDAQ

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity Emerging Growth Company

false

Amendment Flag

false

Entity Central Index Key

0001356576

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration