X0205 3 2012-04-30 0 0001356576 SUPERNUS PHARMACEUTICALS INC SUPN 0001243094 NEW ENTERPRISE ASSOCIATES 11 LP 1954 GREENSPRING DRIVE, SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001244650 NEA PARTNERS 11 LP 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001363737 NEA 11 GP, LLC 1954 GREENSPRING DRIVE, SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001005561 BARRIS PETER J 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001277631 BASKETT FOREST 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001302106 DRANT RYAN D 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001270521 KOLLURI KRISHNA KITTU 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001005550 KRAMLICH C RICHARD 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001062466 PERRY MARK W 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001237289 SANDELL SCOTT D 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 Series A Preferred Stock 2006-02-14 Common Stock 6241250 D The shares of Series A Preferred Stock (the "Shares") will convert automatically into the number of shares of Common Stock set forth above, without the payment of any additional consideration upon the closing of the Issuer's initial public offering. The Shares do not have an expiration date. The Shares are directly held by New Enterprise Associates 11, Limited Partnership ("NEA 11") and indirectly held by NEA Partners 11, Limited Partnership ("NEA Partners 11"), the sole general partner of NEA 11, NEA 11 GP, LLC ("NEA 11 GP"), the sole general partner of NEA Partners 11, and the individual managers of NEA 11 GP (NEA Partners 11, NEA 11 GP and the individual managers of NEA 11 GP together, the "NEA 11 Indirect Reporting Persons"). The individual managers of NEA 11 GP are M. James Barrett, Peter J. Barris, Forest Baskett, Ryan D. Drant, Krishna "Kittu" Kolluri, C. Richard Kramlich, Charles W. Newhall III, Mark W. Perry and Scott D. Sandell. The NEA 11 Indirect Reporting Persons disclaim beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the NEA 11 Shares in which the NEA 11 Indirect Reporting Persons have no pecuniary interest. /s/ Louis Citron, attorney-in-fact 2012-04-30