0001356576 2026-06-18 2026-06-18 0001356576 1 2026-06-18 2026-06-18 iso4217:USD pure shares S-8 S-8 EX-FILING FEES 0001356576 SUPERNUS PHARMACEUTICALS, INC. N/A false S-8 SUPERNUS PHARMACEUTICALS, INC. Equity Common Stock, $0.001 par value per Share ("Common Stock") true 4000000 44.10 176400000.00 0.0001381 24360.84 176400000.00 24360.84 0.00 24360.84 (1a) Fee calculated in accordance with Rules 457(c) and (h) under the Securities Act of 1933, as amended (the "Securities Act"). (1b) Pursuant to Rule 416(a) under the Securities Act of 1933, this Registration Statement also covers such additional shares of Common Stock, of Supernus Pharmaceuticals, Inc. (the "Registrant"), as may be issued by reason of a stock dividend, recapitalization, stock split, or combination or exchange of shares or similar transactions. (1c) Estimated pursuant to Rule 457(c) and (h) solely for the purposes of calculating the Maximum Aggregate Offering Price and the Amount of Registration Fee based upon the average of the high and low prices of the Registrant's Common Stock as reported on the NASDAQ Global Market on June 18, 2026.