Supernus Pharmaceuticals, Inc. is the issuer of common stock reported in this Schedule 13G/A Amendment No. 2. A group including Integrated Core Strategies (US) LLC, Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander reported historical beneficial ownership positions as of the close of business on June 30, 2026. Integrated Core Strategies (US) LLC reported 3,605,227 shares, representing 6.2% of the common stock, with shared voting and dispositive power over all such shares. Millennium Management LLC, Millennium Group Management LLC and Mr. Englander each reported 3,853,212 shares, representing 6.6% of the class, all with shared voting and dispositive power. The filing states that, as of the date of the amendment, the reporting persons have ceased to beneficially own more than 5% of this class of securities.
Positive
None.
Negative
None.
Key Figures
Integrated Core Strategies shares:3,605,227 sharesIntegrated Core Strategies ownership:6.2%Millennium entities and Englander shares:3,853,212 shares+2 more
5 metrics
Integrated Core Strategies shares3,605,227 sharesBeneficially owned Supernus common stock as of June 30, 2026
Integrated Core Strategies ownership6.2%Percent of Supernus common stock class as of June 30, 2026
Millennium entities and Englander shares3,853,212 sharesBeneficially owned Supernus common stock as of June 30, 2026
Millennium entities and Englander ownership6.6%Percent of Supernus common stock class as of June 30, 2026
Ownership status at amendment dateLess than 5%Reporting persons ceased to beneficially own more than 5% of the class
"Amount beneficially owned: See response to Item 9 on each cover page."
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
shared voting powerfinancial
"Shared Voting Power 3,853,212.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
shared dispositive powerfinancial
"Shared Dispositive Power 3,853,212.00"
Schedule 13Gregulatory
"Ownership of 5 percent or less of a class "
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
joint filing agreementregulatory
"Exhibit I: Joint Filing Agreement, dated as of August 5, 2026"
What does this Schedule 13G/A filing mean for Supernus Pharmaceuticals (SUPN)?
The filing shows a group led by Millennium entities and Israel A. Englander reported prior beneficial ownership above 5% of Supernus common stock but has since fallen below the 5% threshold, triggering this amendment.
How many Supernus (SUPN) shares did Millennium entities report owning as of June 30, 2026?
Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander each reported 3,853,212 shares of Supernus common stock as of June 30, 2026, representing 6.6% of the outstanding class with shared voting and dispositive power.
What stake did Integrated Core Strategies (US) LLC report in Supernus (SUPN)?
Integrated Core Strategies (US) LLC reported beneficial ownership of 3,605,227 shares of Supernus common stock, equal to 6.2% of the class as of June 30, 2026, with shared voting and dispositive power over those shares.
Are the Millennium reporting persons still more than 5% shareholders of Supernus (SUPN)?
No. The amendment states that, as of its date, the reporting persons have ceased to beneficially own more than 5% of Supernus’s common stock, indicating their ownership has dropped below the key reporting threshold.
Who are the reporting persons in this Supernus (SUPN) Schedule 13G/A amendment?
The reporting persons are Integrated Core Strategies (US) LLC, Millennium Management LLC, Millennium Group Management LLC, and Israel A. Englander, acting under a joint filing agreement dated August 5, 2026.
What voting and dispositive powers were reported over Supernus (SUPN) shares?
All reporting persons disclosed 0 shares with sole voting or dispositive power and full positions held with shared voting and shared dispositive power, reflecting coordinated control over the reported Supernus shares.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 2)
Supernus Pharmaceuticals, Inc.
(Name of Issuer)
Common Stock, par value $0.001 per share
(Title of Class of Securities)
868459108
(CUSIP Number)
06/30/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
868459108
1
Names of Reporting Persons
Integrated Core Strategies (US) LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
3,605,227.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
3,605,227.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
3,605,227.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.2 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
868459108
1
Names of Reporting Persons
Millennium Management LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
3,853,212.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
3,853,212.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
3,853,212.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.6 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
868459108
1
Names of Reporting Persons
Millennium Group Management LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
3,853,212.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
3,853,212.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
3,853,212.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.6 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
868459108
1
Names of Reporting Persons
Israel A. Englander
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
3,853,212.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
3,853,212.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
3,853,212.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.6 %
12
Type of Reporting Person (See Instructions)
IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Supernus Pharmaceuticals, Inc.
(b)
Address of issuer's principal executive offices:
9715 Key West Avenue, Rockville, Maryland 20850
Item 2.
(a)
Name of person filing:
Integrated Core Strategies (US) LLC
Millennium Management LLC
Millennium Group Management LLC
Israel A. Englander
(b)
Address or principal business office or, if none, residence:
Integrated Core Strategies (US) LLC
c/o Millennium Management LLC
399 Park Avenue
New York, New York 10022
Millennium Management LLC
399 Park Avenue
New York, New York 10022
Millennium Group Management LLC
399 Park Avenue
New York, New York 10022
Israel A. Englander
c/o Millennium Management LLC
399 Park Avenue
New York, New York 10022
(c)
Citizenship:
Integrated Core Strategies (US) LLC - Delaware
Millennium Management LLC - Delaware
Millennium Group Management LLC - Delaware
Israel A. Englander - United States
(d)
Title of class of securities:
Common Stock, par value $0.001 per share
(e)
CUSIP No.:
868459108
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
See response to Item 9 on each cover page. Such response is as of the close of business on June 30, 2026.
As of the date hereof, the reporting persons have ceased to beneficially own more than 5 percent of the class of securities.
(b)
Percent of class:
See response to Item 11 on each cover page. Such response is as of the close of business on June 30, 2026.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
See response to Item 5 on each cover page. Such response is as of the close of business on June 30, 2026.
(ii) Shared power to vote or to direct the vote:
See response to Item 6 on each cover page. Such response is as of the close of business on June 30, 2026.
(iii) Sole power to dispose or to direct the disposition of:
See response to Item 7 on each cover page. Such response is as of the close of business on June 30, 2026.
(iv) Shared power to dispose or to direct the disposition of:
See response to Item 8 on each cover page. Such response is as of the close of business on June 30, 2026.
The securities disclosed herein as potentially beneficially owned by Millennium Management LLC, Millennium Group Management LLC and Mr. Englander are held by entities subject to voting control and investment discretion by Millennium Management LLC and/or other investment managers that may be controlled by Millennium Group Management LLC (the managing member of Millennium Management LLC) and Mr. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). The foregoing should not be construed in and of itself as an admission by Millennium Management LLC, Millennium Group Management LLC or Mr. Englander as to beneficial ownership of the securities held by such entities.
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Integrated Core Strategies (US) LLC
Signature:
/s/ Gil Raviv
Name/Title:
Gil Raviv, Global General Counsel
Date:
08/05/2026
Millennium Management LLC
Signature:
/s/ Gil Raviv
Name/Title:
Gil Raviv, Global General Counsel
Date:
08/05/2026
Millennium Group Management LLC
Signature:
/s/ Gil Raviv
Name/Title:
Gil Raviv, Global General Counsel
Date:
08/05/2026
Israel A. Englander
Signature:
/s/ Israel A. Englander
Name/Title:
Israel A. Englander
Date:
08/05/2026
Comments accompanying signature: ** INTEGRATED CORE STRATEGIES (US) LLC
By: Integrated Holding Group LP, its Managing Member
By: Millennium Management LLC, its General Partner
Exhibit Information
Exhibit I: Joint Filing Agreement, dated as of August 5, 2026, by and among Integrated Core Strategies (US) LLC, Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander.
