SEC FORM 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person ^*

Barlow Carrolee

(Last)

(First)

(Middle)

C/O SUPERNUS, INC., 9715 KEY WEST AVENUE

(Street)

ROCKVILLE

20850

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Supernus, Inc. [ SUPN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	11/02/2026		J⁽¹⁾		41,652	A	$ 0 ⁽¹⁾	41,652	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	$ 0	11/02/2026		J⁽²⁾		4,603		02/18/2027⁽³⁾	⁽³⁾	Common Stock	4,603	$ 0	4,603	D
Director Stock Option (right to buy)	$ 37.76	11/02/2026		J⁽²⁾		15,729		06/27/2019	06/27/2028	Common Stock	15,729	$ 0	15,729	D
Director Stock Option (right to buy)	$ 23.87	11/02/2026		J⁽²⁾		19,138		02/22/2020	02/22/2029	Common Stock	19,138	$ 0	19,138	D
Director Stock Option (right to buy)	$ 15.58	11/02/2026		J⁽²⁾		14,330		02/21/2021	02/21/2030	Common Stock	14,330	$ 0	14,330	D
Director Stock Option (right to buy)	$ 19.23	11/02/2026		J⁽²⁾		11,342		02/19/2022	02/19/2031	Common Stock	11,342	$ 0	11,342	D
Director Stock Option (right to buy)	$ 20.91	11/02/2026		J⁽²⁾		10,545		02/22/2023	02/22/2032	Common Stock	10,545	$ 0	10,545	D
Director Stock Option (right to buy)	$ 25.07	11/02/2026		J⁽²⁾		9,691		02/23/2024	02/23/2033	Common Stock	9,691	$ 0	9,691	D
Director Stock Option (right to buy)	$ 18.15	11/02/2026		J⁽²⁾		12,708		02/22/2025	02/22/2034	Common Stock	12,708	$ 0	12,708	D
Director Stock Option (right to buy)	$ 21.77	11/02/2026		J⁽²⁾		11,236		02/19/2026	02/19/2035	Common Stock	11,236	$ 0	11,236	D
Director Stock Option (right to buy)	$ 32.6	11/02/2026		J⁽²⁾		7,665		02/18/2027	02/18/2036	Common Stock	7,665	$ 0	7,665	D

Explanation of Responses:

1. Pursuant to the Agreement and Plan of Merger, dated as of August 1, 2026, by and among Indivior Pharmaceuticals, Inc. ("Indivior"), Artemis Merger Sub Inc. and Supernus Pharmaceuticals, Inc. ("Supernus Pharmaceuticals"), at the effective time of the merger on 11/2/26, Artemis Merger Sub Inc. merged with and into Supernus Pharmaceuticals, with Supernus Pharmaceuticals surviving as a wholly-owned subsidiary of Indivior. At the effective time, each outstanding share of Supernus Pharmaceuticals common stock was cancelled and automatically converted into the right to receive 1.5401 shares of Indivior common stock. In connection with the merger, Indivior changed its name to "Supernus, Inc." The reporting person's shares of Supernus Pharmaceuticals common stock were disposed of, and the shares of Supernus, Inc. common stock received in exchange were acquired, pursuant to the merger. The reporting person received no cash consideration other than cash in lieu of a fractional share.

2. Pursuant to the Agreement and Plan of Merger, dated as of August 1, 2026, by and among Indivior Pharmaceuticals, Inc. ("Indivior"), Artemis Merger Sub Inc. and Supernus Pharmaceuticals, Inc. ("Supernus Pharmaceuticals"), at the effective time of the merger on 11/2/2026, each outstanding Supernus Pharmaceuticals equity award was assumed by Indivior (renamed Supernus, Inc.) and automatically converted into a corresponding Supernus, Inc. equity award covering the number of Supernus, Inc. shares equal to the number of Supernus Pharmaceuticals shares subject to the award multiplied by the 1.5401 exchange ratio (rounded down), with the per-share exercise price divided by the exchange ratio and rounded up to the nearest whole cent. Each converted award is subject to substantially the same terms and conditions, including vesting, that applied immediately prior to the effective time, except that performance stock unit awards were converted into time-vesting restricted stock units.

3. These restricted stock units are settled in common stock upon vesting, which occurs on February 18, 2027.

	/s/ Timothy C. Dec, as attorney-in-fact	11/04/2026
	** Signature of Reporting Person	Date
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