SUPN insider sale: 5,369 shares reported

SUPN reports a sale of 5,369 shares of Common Stock.

Rhea-AI Filing Summary

SUPN reports a sale of 5,369 shares of Common Stock. The entry lists Morgan Stanley Smith Barney LLC as the broker and describes the shares as restricted stock vesting under a registered plan with a transaction date of 02/22/2025.

FAQ

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

What does the Form 144 for SUPN show?

The Form 144 entry shows a sale of 5,369 common shares. It lists Morgan Stanley Smith Barney LLC as the broker and identifies the shares as restricted stock vesting under a registered plan with date 02/22/2025.

Who is the broker listed on the SUPN Form 144?

The broker is listed as Morgan Stanley Smith Barney LLC. The record gives the broker address as 1 New York Plaza, 8th Floor, New York, NY 10004, tied to the reported sale of 5,369 shares on 02/22/2025.

Are the sold SUPN shares from an award or open‑market purchase?

The shares are described as restricted stock vesting under a registered plan, indicating they arose from a compensation award that vested. The entry ties the vesting/sale event to the 02/22/2025 date in the record.

Does the Form 144 state how proceeds are used?

The excerpt does not provide any use‑of‑proceeds detail. The entry focuses on the security type, 5,369 shares, broker identity, and the 02/22/2025 vesting/sale description without stating proceeds allocation.

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

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Accepted by SEC EDGAR 03/12/2026 - 04:06 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001438462
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	SUPERNUS PHARMACEUTICALS, INC.
SEC File Number	001-35518
Address of Issuer	9715 Key West Avenue Rockville MARYLAND 20850
Phone	301-838-2500
Name of Person for Whose Account the Securities are To Be Sold	FREDERICK M HUDSON
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	5369	271752.47	57581712	03/12/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/22/2025	Restricted stock vesting under a registered plan	Issuer			5369	02/22/2025	Not Applicable

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	03/12/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Frederick Hudson
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)