X0306 4 2017-11-15 1 0001697500 Solaris Oilfield Infrastructure, Inc. SOI 0001165408 ADAGE CAPITAL PARTNERS GP, L.L.C. 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116 0 0 1 0 0001163846 Adage Capital Partners, L.P. 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 The Reporting Persons ceased to beneficially own 10% of the Issuer's outstanding Class A Common Stock, par value $0.01. As a result, the Reporting Persons are no longer subject to Section 16 in connection with their transactions in the equity securities of the Issuer and therefore will no longer report any such transactions on Form 4 or Form 5. /s/ Robert Atchinson 2017-11-16 /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 2017-11-16 /s/ Adage Capital Partners GP, L.L.C.; By its managing member Adage Capital Advisors, L.L.C.; By its managing member Robert Atchinson 2017-11-16 /s/ Adage Capital Advisors, L.L.C.; By its managing member Robert Atchinson 2017-11-16 /s/ Phillip Gross 2017-11-16