Notice of Proposed Settlement of Class Action

Plaintiffs’ Motion for Final Approval of Settlements and Approval of Plan of Allocation

Lead Counsel’s Motion for an Award of Attorneys’ Fees and Expenses and Awards to Plaintiffs Pursuant to 15 U.S.C. §78u-4(a)(4)

Joint Declaration of Andrew J. Entwistle and Trig R. Smith in Support of (I) Plaintiffs’ Motion for Final Approval of Settlements and Approval of Plan of Allocation and (II) Lead Counsel’s Motion for an Award of Attorneys’ Fees and Expenses and Awards to Plaintiffs Pursuant to 15 U.S.C. §78u-4(a)(4)

Declaration of Layn R. Phillips in Support of Motion for Final Approval of Class Action Settlements

Declaration of Luiggy Segura Regarding: (A) Notice Dissemination; (B) Publication/Transmission of the Summary Notice; and (C) Continuation of Call Center Services and Website

Summary of Plaintiffs' Counsel Lodestar and Expenses

Declaration of Andrew J. Entwistle Filed on Behalf of Entwistle & Cappucci LLP in Support of Application for Award of Attorneys’ Fees and Expenses

Declaration of Trig R. Smith Filed on Behalf of Robbins Geller Rudman & Dowd LLP in Support of Application for Award of Attorneys’ Fees and Expenses

Declaration of Carol C. Villegas Filed on Behalf of Labaton Keller Sucharow LLP in Support of Application for Award of Attorneys’ Fees and Expenses

Declaration of Shawn Fischman in Support of Final Approval of Plaintiffs' Proposed Class Action Settlement

Declaration of Paul J. Burbach in Support of Final Approval of Plaintiffs' Proposed Class Action Settlement

Declaration of Toni Inscoe in Support of Final Approval of Plaintiffs’ Proposed Class Action Settlement

Declaration of Thomas Kirchner in Support of Final Approval of Plaintiffs’ Proposed Class Action Settlement

Recent Trends in Securities Class Action Litigation: 2024 Full-Year Review

Order Preliminarily Approving Settlement and Providing for Notice

Stipulation and Agreement between Class Plaintiffs and HPS Investment Partners, LLC and Donald Dimitrievich

Stipulation and Agreement between Class Plaintiffs and ARM Energy Holdings, LLC

Stipulation and Agreement between Class Plaintiffs and Bayou City Energy Management LLC and William Mcmullen

Stipulation and Agreement between Class Plaintiffs and Defendants Alta Mesa Resources, Inc., Harlan H. Chappelle, Stephen S. Coats, Michael E. Ellis, William D. Gutermuth, James T. Hackett, Pierre F. Lapeyre, Jr., David M. Leuschen, Donald R. Sinclair, Ronald Smith, Jeffrey H. Tepper, Thomas J. Walker, Diana J. Walters, and Riverstone Holdings LLC

Memorandum Opinion and Order

Order Granting Class Representatives' Uncontested Motion for Entry of an Order Approving Notice of Pendency of Class Action, Notice Procedures and Appointment of Notice Administrator

Order Granting Plaintiffs' Motion for Class Certification and Appointment of Class Representatives and Class Counsel

Defendant Alta Mesa Resources Inc.'s Answer and Affirmative Defenses to Third Corrected Consolidated Amended Complaint

Third Consolidated Amended Complaint for Violations of the Federal Securities Laws

Amended Answer to Plaintiff's Second Corrected Consolidated Amended Complaint

Amended Answer to Plaintiffs' Second Corrected Consolidated Amended Complaint

Defendant Arm Energy Holdings, LLC's Answer to the Second Corrected Consolidated Amended Complaint

Bayou City Energy Management, LLC and William McMullen's Answer to Plaintiffs' Second Corrected Consolidated Amended Complaint for Violations of the Federal Securities Laws

Defendants' Answer and Affirmative Defenses to Second Corrected Consolidated Amended Complaint

Memorandum Opinion and Order