William Todd Horich - 01 Mar 2026 Form 3 Insider Report for SUPERNUS PHARMACEUTICALS, INC. (SUPN)

Signature
/s/ Timothy C. Dec, as attorney-in-fact
Issuer symbol
SUPN
Transactions as of
01 Mar 2026
Net transactions value
$0
Form type
3
Filing time
10 Mar 2026, 16:11:31 UTC
Next filing
10 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Horich William Todd SVP, Commercial Operations C/O SUPERNUS PHARMACEUTICALS, INC.,, 9715 KEY WEST AVENUE, ROCKVILLE /s/ Timothy C. Dec, as attorney-in-fact 10 Mar 2026 0002117599

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding SUPN Common Stock 4,832 01 Mar 2026 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding SUPN Employee Stock Option (Right to Buy) 01 Mar 2026 Common Stock 13,000 $39.40 Direct F1
holding SUPN Employee Stock Option (Right to Buy) 01 Mar 2026 Common Stock 14,000 $36.75 Direct F2
holding SUPN Employee Stock Option (Right to Buy) 01 Mar 2026 Common Stock 17,000 $29.61 Direct F3
holding SUPN Employee Stock Option (Right to Buy) 01 Mar 2026 Common Stock 18,000 $32.20 Direct F4
holding SUPN Employee Stock Option (Right to Buy) 01 Mar 2026 Common Stock 20,000 $38.60 Direct F5
holding SUPN Employee Stock Option (Right to Buy) 01 Mar 2026 Common Stock 25,000 $27.94 Direct F6
holding SUPN Employee Stock Option (Right to Buy) 01 Mar 2026 Common Stock 20,000 $33.52 Direct F7
holding SUPN Employee Stock Option (Right to Buy) 01 Mar 2026 Common Stock 13,500 $50.20 Direct F8
holding SUPN Restricted Stock Unit 01 Mar 2026 Common Stock 6,250 Direct F9, F10
holding SUPN Restricted Stock Unit 01 Mar 2026 Common Stock 2,500 Direct F10, F11
holding SUPN Restricted Stock Unit 01 Mar 2026 Common Stock 3,375 Direct F10, F12
holding SUPN Restricted Stock Unit 01 Mar 2026 Common Stock 3,000 Direct F10, F13
holding SUPN Performance Share Unit 01 Mar 2026 Common Stock 3,750 $0.000000 Direct F14
holding SUPN Performance Share Unit 01 Mar 2026 Common Stock 1,125 $0.000000 Direct F14
holding SUPN Performance Share Unit 01 Mar 2026 Common Stock 2,625 $0.000000 Direct F14
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The option vests in four equal annual installments beginning on February 14, 2019.
F2 The option vests in four equal annual installments beginning on February 22, 2020.
F3 The option vests in four equal annual installments beginning on February 19, 2022.
F4 The option vests in four equal annual installments beginning on February 22, 2023.
F5 The option vests in four equal annual installments beginning on February 23, 2024.
F6 The option vests in four equal annual installments beginning on February 22, 2025.
F7 The option vests in four equal annual installments beginning on February 19, 2026.
F8 The option vests in four equal annual installments beginning on February 18, 2027.
F9 These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 23, 2024.
F10 Each restricted stock unit represents the right to receive one share of Supernus common stock upon vesting.
F11 These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 22, 2025.
F12 These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 19, 2026.
F13 These restricted stock units are settled in common stock upon vesting, which occurs in four equal annual installments, beginning on February 18, 2027.
F14 On February 22, 2024, 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 June 24, 2024.

Remarks:

Exhibit 24 - Power of Attorney