Klein, et al. v. Meta Platforms, Inc.
Plaintiff: MAXIMILIAN KLEIN, SARAH GRABERT and RACHEL BANKS KUPCHO
Defendant: META PLATFORMS, INC., FKA: Facebook, Inc.
Intervenor: SNAP INC. and MICROSOFT CORPORATION
Case Number: 25-6858
Filed: October 29, 2025
Court: U.S. Court of Appeals, Ninth Circuit
Nature of Suit: Antitrust
Docket Report

This docket was last retrieved on April 22, 2026. A more recent docket listing may be available from PACER.

Date Filed Document Text
April 22, 2026 Filing 34 EXCERPTS OF RECORD volume 2 submitted UNDER SEAL for filing by Appellee Meta Platforms, Inc..--[Court entered filing, originally filed with motion at DE 30] [Entered: 04/22/2026 03:13 PM]
April 22, 2026 Filing 33 ANSWERING BRIEF submitted UNDER SEAL for filing by Appellee Meta Platforms, Inc..--[Court entered filing, originally filed with motion at DE 30] [Entered: 04/22/2026 03:11 PM]
April 22, 2026 Filing 32 EXCERPTS OF RECORD submitted for filing by Appellee Meta Platforms, Inc.. [Entered: 04/22/2026 02:59 PM]
April 22, 2026 Filing 31 ANSWERING BRIEF submitted for filing by Appellee Meta Platforms, Inc.. [Entered: 04/22/2026 02:56 PM]
April 22, 2026 Filing 30 MOTION to File Document Under Seal and Sealed Document Submitted for Filing filed by Appellee Meta Platforms, Inc.. [Entered: 04/22/2026 02:54 PM]
March 24, 2026 Filing 29 CLERK ACTION: Redacted Opening Brief submitted at DE 12 by Appellant Maximilian Klein, Appellant Rachel Banks Kupcho, Appellant Sarah Grabert is filed. No paper copies are required. [Entered: 03/24/2026 05:54 PM]
March 24, 2026 Filing 28 CLERK ACTION: Opening Brief and Excerpts of Record submitted at DE 13, DE 15, DE 16 by Appellant Maximilian Klein, Appellant Rachel Banks Kupcho, Appellant Sarah Grabert are filed. The Opening Brief and Volume 4 & 5 are filed UNDER SEAL. No paper copies are required. [Entered: 03/24/2026 05:54 PM]
March 24, 2026 Opinion or Order Filing 27 ORDER FILED. Appellants filed a notice (Docket Entry No. 14) of intent to file publicly the opening brief and Volumes 4 and 5 of the excerpts of record. See 9th Cir. R. 27-13(f). The unopposed motions (Docket Entry Nos. 19, 22, 23, 24, 26) to intervene and to maintain portions of the opening brief and Volumes 4 and 5 of the excerpts of record under seal are granted. The clerk will file publicly the motions to seal and the supporting declarations (Docket Entry Nos. 22.1, 22.2, 22.3, 23.1, 23.2, 26.1, 26.2), the redacted opening brief (Docket Entry No. 12), and Volumes 1 through 3 of the excerpts of record (Docket Entry No. 13). The clerk will maintain the opening brief and Volumes 4 and 5 of the excerpts of record under seal at Docket Entry Nos. 15 and 16. The existing briefing schedule remains in effect. [Entered: 03/24/2026 03:37 PM]
March 18, 2026 Filing 25 ADDED Intervenor - Pending Microsoft Corporation, Counsel for Intervenor - Pending Amy Ray [Entered: 03/18/2026 08:06 AM]
March 12, 2026 Filing 26 MOTION to Maintain Document Under Seal filed by Intervenor - Pending Microsoft Corporation.--[Court entered filing, originally filed at DE 24] [Entered: 03/18/2026 08:07 AM]
March 12, 2026 Filing 24 MOTION to Intervene filed by Microsoft Corporation.--[COURT UPDATE: Corrected PDF attached as of 3/18/2026, REPLACING original attachment] [Entered: 03/12/2026 08:05 PM] [Edited: 03/18/2026 08:02 AM]
March 12, 2026 Filing 23 MOTION to Maintain Document Under Seal filed by Intervenor - Pending Snap Inc.. [Entered: 03/12/2026 04:29 PM]
March 12, 2026 Filing 22 MOTION to Maintain Document Under Seal filed by Appellee Meta Platforms, Inc..--[Court entered filing to correct DE 21] [Entered: 03/12/2026 02:42 PM]
March 12, 2026 Filing 21 DEFECTIVE --- MOTION to File Document Under Seal and Sealed Document Submitted for Filing filed by Appellee Meta Platforms, Inc..--[Wrong filing type, correct entry is DE 22] [Entered: 03/12/2026 02:19 PM] [Edited: 03/12/2026 02:43 PM]
March 12, 2026 Filing 20 ADDED Intervenor - Pending Snap Inc., Counsel for Intervenor - Pending David A. O'Neil [Entered: 03/12/2026 01:17 PM]
March 12, 2026 Filing 19 MOTION to Intervene filed by Snap Inc.. [Entered: 03/12/2026 12:20 PM]
February 24, 2026 Opinion or Order Filing 18 ORDER FILED. Streamlined Request for Extension of Time to File Brief (DE 17) granted. Amended briefing schedule: Answering Brief Due (Appellee) 4/22/2026. Optional Reply Brief due 21 days after service of Answering Brief. All briefs shall be served and filed pursuant to FRAP 31 and 9th Cir. R. 31-2.1. [Entered: 02/24/2026 04:07 PM]
February 24, 2026 Filing 17 Streamlined Request for Extension of Time to File Brief filed by Appellee Meta Platforms, Inc.. [Entered: 02/24/2026 03:21 PM]
February 19, 2026 Filing 16 EXCERPTS OF RECORD volumes 4 & 5 submitted UNDER SEAL for filing by Appellant Maximilian Klein, Appellant Sarah Grabert, Appellant Rachel Banks Kupcho.--[Court entered filing, originally filed with notice at DE 14] [Entered: 02/20/2026 09:47 AM]
February 19, 2026 Filing 15 OPENING BRIEF submitted UNDER SEAL for filing by Appellant Maximilian Klein, Appellant Sarah Grabert, Appellant Rachel Banks Kupcho.--[Court entered filing, originally filed with notice at DE 14] [Entered: 02/20/2026 09:44 AM]
February 19, 2026 Filing 14 NOTICE of Intent to Unseal and Document Submitted Provisionally Under Seal filed by Appellant Maximilian Klein, Appellant Sarah Grabert, Appellant Rachel Banks Kupcho.--[Court Update: Unlocked notice] [Entered: 02/19/2026 06:43 PM] [Edited: 02/20/2026 09:42 AM]
February 19, 2026 Filing 13 EXCERPTS OF RECORD submitted for filing by Appellant Maximilian Klein, Appellant Sarah Grabert, Appellant Rachel Banks Kupcho. [Entered: 02/19/2026 06:38 PM]
February 19, 2026 Filing 12 OPENING BRIEF submitted for filing by Appellant Maximilian Klein, Appellant Sarah Grabert, Appellant Rachel Banks Kupcho. [Entered: 02/19/2026 06:35 PM]
December 22, 2025 Opinion or Order Filing 11 ORDER FILED. Streamlined Request for Extension of Time to File Brief (DE 10) granted. Amended briefing schedule: Opening Brief Due (Appellant) 2/19/2026, Answering Brief Due (Appellee) 3/23/2026. Optional Reply Brief due 21 days after service of Answering Brief. All briefs shall be served and filed pursuant to FRAP 31 and 9th Cir. R. 31-2.1. [Entered: 12/22/2025 08:17 AM]
December 22, 2025 Filing 10 Streamlined Request for Extension of Time to File Brief filed by Appellant Maximilian Klein, Appellant Sarah Grabert, Appellant Rachel Banks Kupcho. [Entered: 12/22/2025 04:51 AM]
November 12, 2025 Filing 9 ADDED Counsel for Appellee Aaron Martin Panner [Entered: 11/12/2025 09:30 AM]
November 12, 2025 Filing 8 DISCLOSURE STATEMENT pursuant to FRAP 26.1 and CR 26.1-1 filed by Appellee Meta Platforms, Inc.. [Entered: 11/12/2025 08:53 AM]
November 11, 2025 Filing 7 NOTICE OF APPEARANCE by Aaron Martin Panner for Appellee Meta Platforms, Inc.. [Entered: 11/11/2025 06:39 AM]
November 3, 2025 Filing 6 MEDIATION QUESTIONNAIRE filed by Appellant Maximilian Klein, Appellant Sarah Grabert, Appellant Rachel Banks Kupcho. To submit pertinent confidential information directly to the Circuit Mediators, please email #[email protected] and include the case name and number in the subject line. Confidential submissions may include any information relevant to mediation of the case and settlement potential, including, but not limited to, settlement history, ongoing or potential settlement discussions, non-litigated party related issues, other pending actions, and timing considerations that may impact mediation efforts. [Entered: 11/03/2025 01:15 PM]
November 3, 2025 Filing 5 DISCLOSURE STATEMENT pursuant to FRAP 26.1 and CR 26.1-1 filed by Appellant Maximilian Klein, Appellant Sarah Grabert, Appellant Rachel Banks Kupcho. [Entered: 11/03/2025 01:13 PM]
October 30, 2025 Filing 4 ADDED Counsel for Appellant Sanford Ian Weisburst [Entered: 10/30/2025 08:00 AM]
October 30, 2025 Filing 3 NOTICE OF APPEARANCE by Sanford Ian Weisburst for Appellant Maximilian Klein, Appellant Rachel Banks Kupcho, Appellant Sarah Grabert. [Entered: 10/30/2025 06:22 AM]
October 29, 2025 Filing 2 SCHEDULE NOTICE. Mediation Questionnaire due (Appellant) 11/3/2025, Appeal Transcript Order Due (Appellant) 11/10/2025, Appeal Transcript Due (Appellant) 12/10/2025, Appeal Opening Brief Due (Appellant) 1/20/2026, Appeal Answering Brief Due (Appellee) 2/20/2026. For appeal no. 25-6858, 3:20-cv-08570-JD. All briefs shall be served and filed pursuant to FRAP 31 and 9th Cir. R. 31-2.1. Failure of the petitioner(s)/appellant(s) to comply with this briefing schedule will result in automatic dismissal of the appeal. See 9th Cir. R. 42-1. [Entered: 10/29/2025 03:06 PM]
October 29, 2025 Filing 1 CASE OPENED. A copy of your notice of appeal / petition filed in 3:20-cv-08570-JD has been received in the Clerk's office of the United States Court of Appeals for the Ninth Circuit. The U.S. Court of Appeals docket number 25-6858 has been assigned to this case. All communications with the court must indicate this Court of Appeals docket number. Please carefully review the docket to ensure the name(s) and contact information are correct. It is your responsibility to alert the court if your contact information changes. Resources Available For more information about case processing and to assist you in preparing your brief, please review the Case Opening Information (for #attorneys and #pro se litigants) and review the #Appellate Practice Guide. Attorneys should consider contacting the court's #Appellate Mentoring Program for help with the brief and argument. [Entered: 10/29/2025 03:02 PM]

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Search for this case: Klein, et al. v. Meta Platforms, Inc.
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Plaintiff: MAXIMILIAN KLEIN
Represented By: Mr. Sanford Ian Weisburst
Represented By: Mr. Brantley Pepperman
Represented By: W. Joseph Bruckner
Represented By: Steve Berman
Represented By: Shana E. Scarlett
Represented By: Adam Wolfson
Represented By: Mr. Kevin Teruya
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Plaintiff: SARAH GRABERT
Represented By: Mr. Sanford Ian Weisburst
Represented By: Mr. Brantley Pepperman
Represented By: W. Joseph Bruckner
Represented By: Steve Berman
Represented By: Shana E. Scarlett
Represented By: Adam Wolfson
Represented By: Mr. Kevin Teruya
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Plaintiff: RACHEL BANKS KUPCHO
Represented By: Mr. Sanford Ian Weisburst
Represented By: Mr. Brantley Pepperman
Represented By: W. Joseph Bruckner
Represented By: Steve Berman
Represented By: Shana E. Scarlett
Represented By: Adam Wolfson
Represented By: Mr. Kevin Teruya
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Defendant: META PLATFORMS, INC., FKA: Facebook, Inc.
Represented By: David Gringer
Represented By: Ms. Sonal Naresh Mehta
Represented By: Aaron Martin Panner
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Intervenor: SNAP INC.
Represented By: David A. O'Neil
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Intervenor: MICROSOFT CORPORATION
Represented By: Amy Ray
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