X0306 4 2018-06-11 0001612720 NextDecade Corp. NEXT 0001633312 Halcyon Capital Management LP 477 MADISON AVENUE, 8TH FLOOR NEW YORK NY 10022 true 0001713588 Halcyon Mount Bonnell Fund LP C/O HALCYON CAPITAL MANAGEMENT, LP 477 MADISON AVE., 8TH FLOOR NEW YORK NY 10022 true 0001713551 HCN LP C/O HALCYON CAPITAL MANAGEMENT, LP 477 MADISON AVENUE, 8TH FLOOR NEW YORK NY 10022 true 0001713549 HCN GP LLC C/O HALCYON CAPITAL MANAGEMENT, LP 477 MADISON AVE., 8TH FLOOR NEW YORK NY 10022 true 0001720897 Halcyon Solutions Master Fund LP C/O HALCYON CAPITAL MANAGEMENT LP 477 MADISON AVE., 8TH FLOOR NEW YORK NY 10022 true 0001720906 Halcyon Solutions GP LLC C/O HALCYON CAPITAL MANAGEMENT LP 477 MADISON AVE., 8TH FLOOR NEW YORK NY 10022 true 0001713592 Halcyon Energy, Power & Infrastructure Capital Holdings LLC C/O HALCYON CAPITAL MANAGEMENT, LP 477 MADISON AVE., 8TH FLOOR NEW YORK NY 10022 true 0001713553 First Series of HDML Fund I, LLC C/O HALCYON CAPITAL MANAGEMENT, LP 477 MADISON AVE., 8TH FLOOR NEW YORK NY 10022 true 0001713583 HDML Assets LLC C/O HALCYON CAPITAL MANAGEMENT, LP 477 MADISON AVE., 8TH FLOOR NEW YORK NY 10022 true 0001713540 Kripalani Avinash C/O HALCYON CAPITAL MANAGEMENT, LP 477 MADISON AVENUE, 8TH FLOOR NEW YORK NY 10022 true Common Stock, $ 0.0001 par value 2018-06-11 4 A 0 4002 A 11069827 I See footnotes See Exhibit 99.1 for text of footnote (1). See Exhibit 99.1 for text of footnote (2). See Exhibit 99.1 for text of footnote (3). See Exhibit 99.1 for text of footnote (4). See Exhibit 99.1 for text of footnote (5). Exhibit 99.1 (Footnotes) and Exhibit 99.2 (Joint Filer Information) are incorporated herein by reference. This Form 4 is the first of two Forms 4 being filed relating to the same event. The Form 4 has been split into two filings because there are more than ten Reporting Persons in total, and the SEC's EDGAR filing system limits a single Form 4 to a maximum of ten Reporting Persons. This Form 4 is filed by Designated Filer Halcyon Capital Management LP. Halcyon Capital Management LP By: /s/ Suzanne McDermott Name: Suzanne McDermott Title: Chief Compliance Officer 2018-06-13 By: /s/ John Freese Name: John Freese Title: Deputy General Counsel 2018-06-13