Timothy C. Dec - 12 Aug 2026 Form 4 Insider Report for SUPERNUS PHARMACEUTICALS, INC. (SUPN)

Reporting relationship: Senior Vice-President & CFO
Issuer ticker: SUPN
Reported as of: 12 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 14 Aug 2026, 17:09:36 UTC
Prior SEC filing: 31 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Timothy C. Dec

Key filing fact

Timothy C. Dec filed Form 4 for SUPERNUS PHARMACEUTICALS, INC. (SUPN) on 14 Aug 2026.

Key facts

This page summarizes Timothy C. Dec's Form 4 filing for SUPERNUS PHARMACEUTICALS, INC. (SUPN).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 14 Aug 2026, 17:09.

Change

Previous filing in this sequence was filed on 31 Jul 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001194020 Primary reporting owner

DEC TIMOTHY C

Relationship: Senior Vice-President & CFO
Address: C/O SUPERNUS PHARMACEUTICALS, INC., 9715 KEY WEST AVENUE, ROCKVILLE
Signature: /s/ Timothy C. Dec
Signature date: 14 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SUPN transaction

Common Stock

Options Exercise

Transaction value
Shares: +1,250
Change %: +15%
Price: $0.000000^*
Shares after: 9,733
Date: 12 Aug 2026
Ownership: Direct
Footnotes: F1

SUPN transaction

Common Stock

Tax liability

Transaction value
Shares: -604
Change %: -6.2%
Price: $46.57^*
Shares after: 9,129
Date: 12 Aug 2026
Ownership: Direct
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SUPN transaction Derivative

Performance Share Unit

Options Exercise

Transaction value
Shares: -1,250
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 12 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,250
Exercise price: $0.000000
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Includes an aggregate of 251 shares acquired by the Reporting Person through the Issuer's Employee Stock Purchase Plan.

Footnote F2

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

Footnote F3

On February 19, 2025, the Reporting Person was awarded Performance Share Units, a portion of which vested upon the achievement of individual performance objectives within a defined performance period, which objectives were established on May 3, 2025.