X0206 3 2014-02-12 0 0001367920 CONCERT PHARMACEUTICALS, INC. N/A 0001163846 Adage Capital Partners, L.P. 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116 0 0 1 0 0001165408 ADAGE CAPITAL PARTNERS GP LLC 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116 0 0 1 0 0001403403 Adage Capital Advisors, L.L.C. 200 CLARENDON STREET 52ND FLOOR BOSTON MA 02116 0 0 1 0 0001403404 Atchinson Robert 200 CLARENDON STREET 52ND FLOOR BOSTON MA 02116 0 0 1 0 0001403413 Gross Phillip 200 CLARENDON STREET 52ND FLOOR BOSTON MA 02116 0 0 1 0 Common stock, par value $0.001 per share 14572 I See FN Series C Convertible Preferred Stock Common Stock 495575 I See FN The securities to which this filing relates are held directly by Adage Capital Partners, L.P., a Delaware limited partnership (the "Fund"). Adage Capital Partners GP, L.L.C., a Delaware limited liability company ("ACPGP"), serves as the general partner of the Fund and as such has discretion over the portfolio securities beneficially owned by the Fund. Adage Capital Advisors, L.L.C., a Delaware limited liability company ("ACA"), is the managing member of ACPGP and directs ACPGP's operations. Robert Atchinson and Phillip Gross are the managing members of ACPGP and ACA and general partners of ACP. ACPGP, ACA, Robert Atchinson and Phillip Gross disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein. The Series C Convertible Preferred Stock is convertible at any time without payment of further consideration and has no expiration date. The Series C Convertible Preferred Stock will automatically convert upon the closing of the Issuer's initial public offering. /s/ Robert Atchinson 2014-02-12 /s/ Adage Capital Partners, L.P.; By its general partner Adage Capital Partners GP, L.L.C.; By its managing member Adage Capital Advisors, L.L.C.; By its managing member Robert Atchinson 2014-02-12 /s/ Adage Capital Partners GP, L.L.C.; By its managing member Adage Capital Advisors, L.L.C.; By its managing member Robert Atchinson 2014-02-12 /s/ Adage Capital Advisors, L.L.C.; By its managing member Robert Atchinson 2014-02-12 /s/ Phillip Gross 2014-02-12