Timothy C. Dec - 25 Feb 2026 Form 4 Insider Report for SUPERNUS PHARMACEUTICALS, INC. (SUPN)

Reporting relationship: Senior Vice-President & CFO
Issuer ticker: SUPN
Reported as of: 25 Feb 2026
Net transaction value: -$64,833
SEC form: 4
Accepted by SEC: 26 Feb 2026, 16:19:19 UTC
Prior SEC filing: 25 Feb 2026
Next SEC filing: 03 Mar 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 26 Feb 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: 26 Feb 2026, 16:19.

Change

Previous filing in this sequence was filed on 25 Feb 2026.
Current net transaction value: -$64,833.

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: 26 Feb 2026

Reported non-derivative transactions

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

SUPN transaction

Common Stock

Award

Transaction value: $0
Shares: +2,500
Change %: +64%
Price: $0.000000
Shares after: 6,394
Date: 25 Feb 2026
Ownership: Direct

SUPN transaction

Common Stock

Tax liability

Transaction value: $64,833
Shares: -1,279
Change %: -20%
Price: $50.69
Shares after: 5,115
Date: 25 Feb 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

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

SUPN transaction Derivative

Restricted Stock Unit

Disposed to Issuer

Transaction value: $0
Shares: -2,500
Change %: -50%
Price: $0.000000
Shares after: 2,500
Date: 25 Feb 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,500
Exercise price
Footnotes: F2, 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

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

Footnote F2

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

Footnote F3

These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 23, 2024.