Supernus SVP logs equity grants and withholdings

SUPERNUS PHARMACEUTICALS SVP and Chief Medical Officer Jonathan Rubin reported multiple equity compensation events.

Rhea-AI Filing Summary

SUPERNUS PHARMACEUTICALS SVP and Chief Medical Officer Jonathan Rubin reported multiple equity compensation events. On February 24, 2026, restricted stock units were disposed back to the company as they vested, and corresponding shares of common stock were acquired. Some of these new shares were withheld by the company to cover tax obligations. The RSUs each convert into one share of common stock and vest in four equal annual installments beginning on February 19, 2026, February 22, 2023, and February 22, 2025, depending on the grant.

Insider Trade Summary

9 transactions reported

Mixed 9 txns

Insider Rubin Jonathan

Role SVP, Chief Medical Officer

Type	Security	Shares	Price	Value
Disposition	Restricted Stock Unit	1,125	$0.00	$0.00
Disposition	Restricted Stock Unit	750	$0.00	$0.00
Disposition	Restricted Stock Unit	1,250	$0.00	$0.00
Grant/Award	Common Stock	1,125	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	603	$51.35	$31K
Grant/Award	Common Stock	750	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	369	$50.86	$19K
Grant/Award	Common Stock	1,250	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	671	$0.00	$0.00

Holdings After Transaction: Restricted Stock Unit — 5,875 contracts (Direct); Common Stock — 12,766 shares (Direct)

Footnotes (5)

1. F1. Represents the number of shares of common stock withheld by the Company to satisfy tax withholding requirements in connection with the RSU vesting.
2. F2. Each restricted stock unit represents the right to receive one share of Supernus common stock upon vesting.
3. F3. These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 19, 2026.
4. F4. These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 22, 2023.
5. F5. These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 22, 2025.

FAQ

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

What insider transactions did SUPN executive Jonathan Rubin report on this Form 4?

Jonathan Rubin reported RSU vesting, share awards, and tax-share withholdings. Restricted stock units were disposed back to Supernus as they vested, while common shares were granted and some withheld to satisfy tax obligations tied to those vestings.

Did SUPN’s Jonathan Rubin sell any shares on the open market in this filing?

The filing does not show open-market sales. Shares labeled with code F were delivered to the company to cover tax liabilities related to vesting awards, rather than discretionary selling into the market by the executive.

How do the restricted stock units reported by SUPN’s CMO vest over time?

Each restricted stock unit converts into one share of Supernus common stock upon vesting. The units vest in four equal annual installments, beginning on February 19, 2026, February 22, 2023, or February 22, 2025, depending on the specific grant.

What does the tax withholding in Jonathan Rubin’s SUPN Form 4 represent?

The tax withholding represents shares of common stock that Supernus kept instead of delivering to Rubin. These shares were withheld specifically to satisfy tax withholding requirements triggered when restricted stock units vested into common stock.

What is the difference between RSU dispositions and stock acquisitions in this SUPN Form 4?

RSU dispositions reflect units being canceled or delivered back to the company as they convert, while stock acquisitions reflect common shares granted to Rubin. Some of those acquired shares are then withheld by Supernus to pay taxes due at vesting.

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

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Accepted by SEC EDGAR 02/25/2026 - 04:51 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Rubin Jonathan

(Last) (First) (Middle)

C/O SUPERNUS PHARMACEUTICALS, INC.,

9715 KEY WEST AVENUE

(Street)

ROCKVILLE MD 20850

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SUPERNUS PHARMACEUTICALS, INC. [ SUPN ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Medical Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/24/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/24/2026		A		1,125	A	$0	12,409	D
Common Stock	02/24/2026		F		603(1)	D	$51.35	11,806	D
Common Stock	02/24/2026		A		750	A	$0	12,556	D
Common Stock	02/24/2026		F		369(1)	D	$50.86	12,187	D
Common Stock	02/24/2026		A		1,250	A	$0	13,437	D
Common Stock	02/24/2026		F		671(1)	D	$0	12,766	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit	(2)	02/24/2026		D			1,125	(3)	(3)	Common Stock	1,125	$0	3,375	D
Restricted Stock Unit	(2)	02/24/2026		D			750	(4)	(4)	Common Stock	750	$0	0	D
Restricted Stock Unit	(2)	02/24/2026		D			1,250	(5)	(5)	Common Stock	1,250	$0	2,500	D

Explanation of Responses:

1. Represents the number of shares of common stock withheld by the Company to satisfy tax withholding requirements in connection with the RSU vesting.

2. Each restricted stock unit represents the right to receive one share of Supernus common stock upon vesting.

3. These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 19, 2026.

4. These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 22, 2023.

5. These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 22, 2025.

Remarks:

	/s/ Timothy C. Dec, as attorney-in-fact	02/25/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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