Case: Anthropic PBC v. United States Department of War

Anthropic PBC v. U.S. Department of War

PETITION FOR REVIEW [2162687] of a decision by federal agency filed by Anthropic PBC [Service Date: 03/09/2026] Disclosure Statement: Attached. [26-1049] [Entered: 03/09/2026 12:27 PM]

CERTIFIED COPY [2162688] of Petition for Review sent to respondent [2162687-2]. [26-1049] [Entered: 03/09/2026 12:28 PM]

CLERK'S ORDER [2162695] filed directing the parties to file initial submissions: PETITIONER docketing statement due 04/08/2026. PETITIONER certificate as to parties due 04/08/2026. PETITIONER statement of issues due 04/08/2026. PETITIONER underlying decision due 04/08/2026. PETITIONER deferred appendix statement due 04/08/2026. PETITIONER procedural motions due 04/08/2026. PETITIONER dispositive motions due 04/23/2026. RESPONDENT entry of appearance due 04/08/2026. RESPONDENT procedural motions due 04/08/2026. RESPONDENT certified index to record due 04/23/2026. RESPONDENT dispositive motions due 04/23/2026 [26-1049] [Entered: 03/09/2026 12:43 PM]

PETITION FOR REVIEW CASE docketed. [26-1049] [Entered: 03/09/2026 12:26 PM]

ENTRY OF APPEARANCE [2163025] filed by Sharon Swingle and co-counsel Sean R. Janda; Brian J. Springer on behalf of Respondents Peter B. Hegseth and United States Department of War. [26-1049] (Janda, Sean) [Entered: 03/10/2026 06:02 PM]

EMERGENCY MOTION [2163176] to stay underlying order pending appeal filed by Anthropic PBC (Service Date: 03/11/2026 by CM/ECF NDA) Length Certification: 5,188 Words. [26-1049] (Dunbar, Kelly) [Entered: 03/11/2026 11:15 PM]

1 Petitioner's Emergency Motion for Stay Pending Review

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2 Addendum

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3 Checklist for Emergency Motions

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MOTION [2163178] to participate as amicus curiae [Disclosure Listing: Attached] filed by Foundation for American Innovation, Fifty Years, Fathom, ChinaTalk, Martin Chorzempa, Alex Imas, Pangram, Institute for Progress, Dean Ball, Dwarkesh Patel, Roots of Progress, Saif Khan [Service Date: 03/12/2026 ] [26-1049] (Hwang, Tim) [Entered: 03/12/2026 12:38 AM]

1 Motion to Participate as Amicus Curiae Filed

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2 Proposed Amicus Brief

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AMICUS FOR PETITIONER BRIEF [2163215] lodged by Dean Ball, ChinaTalk, Martin Chorzempa, Fathom, Fifty Years, Foundation for American Innovation, Alex Imas, Institute for Progress, Saif Khan, Pangram, Dwarkesh Patel and Roots of Progress [Service Date: 03/12/2026 ] Length of Brief: 3,541 words. [26-1049] [Entered: 03/12/2026 10:31 AM]

MOTION [2163273] to participate as amicus curiae [Disclosure Listing: Not Applicable to this Party] filed by Former Service Secretaries and Retired Senior Military Officers [Service Date: 03/12/2026 ] [26-1049] (Harrington, Sarah) [Entered: 03/12/2026 01:38 PM]

AMICUS FOR PETITIONER BRIEF [2163300] lodged by Former Service Secretaries and Retired Senior Military Officers [Service Date: 03/12/2026 ] Length of Brief: 3,755 words. [26-1049] [Entered: 03/12/2026 02:41 PM]

CONSENT NOTICE [2163366] of intention to participate as amicus curiae [Disclosure Listing: Attached] filed by Employees of Open AI and Google in Their Personal Capacities [Service Date: 03/12/2026 ] [26-1049] (Lev, Ori) [Entered: 03/12/2026 07:18 PM]

AMICUS FOR PETITIONER BRIEF [2163373] filed by Foundation for Individual Rights and Expression, Electronic Frontier Foundation, Cato Institute, Chamber of Progress, and First Amendment Lawyers Association [Service Date: 03/12/2026 ] Length of Brief: 5,151 words. [26-1049] (Shah, Sopen) [Entered: 03/12/2026 09:38 PM]

CONSENT AMICUS FOR PETITIONER BRIEF [2163420] filed by Employees of OpenAI and Google in Their Personal Capacities [Service Date: 03/13/2026 ] Length of Brief: 3,282. [26-1049] (Lev, Ori) [Entered: 03/13/2026 09:28 AM]

PER CURIAM ORDER [2163428] filed ORDERED that respondents file a response to the emergency motion for a stay [2163176-2] by March 19, 2026. Petitioner’s reply is due by March 23, 2026. Before Judges: Wilkins, Katsas and Rao. [26-1049] [Entered: 03/13/2026 09:42 AM]

CONSENT NOTICE [2163584] of intention to participate as amicus curiae [Disclosure Listing: Not Applicable to this Party] filed by Professor Alan Z. Rozenshtein [Service Date: 03/13/2026 ] [26-1049] (Theodore, Elisabeth)

AMICUS FOR PETITIONER BRIEF [2163588] filed by Professor Alan Z. Rozenshtein [Service Date: 03/13/2026 ] Length of Brief: 4,383 Words. [26-1049] (Theodore, Elisabeth)

AMICUS FOR PETITIONER BRIEF [2163623] filed by Freedom Economy Business Association [Service Date: 03/13/2026 ] Length of Brief: 2,449. [26-1049] (Harris, George)

1 Amicus for Appellant/Petitioner Brief Filed

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2 Notice of Intent to Support Petitioner

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3 Entry of Appearance - George Harris

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ENTRY OF APPEARANCE [2163740] filed by Mr. George C. Harris for Freedom Economy Business Association, Candide Group, Howard Fischer, Thomas Haslett, Investor Advocates for Social Justice, Mission Driven Finance, The Nathan Cummings Foundation, Inc., Omidyar Network LLC and Pluralize Capital. [26-1049] [Entered: 03/16/2026 10:44 AM]

MOTION [2163901] to participate as amicus curiae [Disclosure Listing: Attached] filed by Former Senior National Security Government Officials [Service Date: 03/16/2026 ] [26-1049] (Loeb, Alexis) [Entered: 03/16/2026 05:52 PM]

1 Motion to Participate as Amicus Curiae Filed

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2 Proposed Amici Brief

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MOTION [2163907] to participate as amicus curiae [Disclosure Listing: Attached] filed by American Civil Liberties Union and Center for Democracy & Technology [Service Date: 03/16/2026 ] [26-1049] (Gorski, Ashley) [Entered: 03/16/2026 07:03 PM]

1 Motion to Participate as Amicus Curiae Filed

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2 Proposed Amicus Brief

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3 Entry of Appearance

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AMICUS FOR PETITIONER BRIEF [2163908] lodged by Former Senior National Security Government Officials [Service Date: 03/16/2026 ] Length of Brief: 6,132 Words. [26-1049] [Edited 03/17/2026 by EKC--MODIFIED EVENT FROM FILED TO LODGED] (Loeb, Alexis) [Entered: 03/16/2026 07:10 PM]

AMENDED AMICUS FOR PETITIONER BRIEF [2163912] filed by Freedom Economy Business Association [Service Date: 03/16/2026 ] Length of Brief: 2,449. [26-1049]--[Edited 03/17/2026 by EKC] (Harris, George) [Entered: 03/16/2026 07:32 PM]

1 Amicus for Appellant/Petitioner Supplemental Brief Filed

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2 Amended Corporate Disclosure Statement of Amici FEBA et al

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MOTION [2163913] to participate as amicus curiae [Disclosure Listing: Not Applicable to this Party] filed by Catholic Theologians and Ethicists [Service Date: 03/16/2026 ] [26-1049] (Klubes, Benjamin) [Entered: 03/16/2026 07:45 PM]

AMICUS FOR PETITIONER BRIEF [2163914] lodged by Catholic Theologians and Ethicists [Service Date: 03/16/2026 ] Length of Brief: 2,580 words. [26-1049] [Edited 03/17/2026 by EKC--MODIFIED EVENT FROM FILED TO LODGED] (Klubes, Benjamin) [Entered: 03/16/2026 07:50 PM]

MOTION [2163923] to participate as amicus curiae [Disclosure Listing: Attached] filed by TechNet, Software & Information Industry Association, Computer & Communications Industry Association, Information Technology Industry Council [Service Date: 03/16/2026 ] [26-1049] (Wolff, Daniel) [Entered: 03/16/2026 11:02 PM]

AMICUS FOR PETITIONER BRIEF [2163924] lodged by TechNet, Software & Information Industry Association, Computer & Communications Industry Association, Information Technology Industry Council [Service Date: 03/16/2026 ] Length of Brief: 2459 words. [26-1049] [Edited 03/17/2026 by EKC--MODIFIED EVENT FROM FILED TO LODGED] (Wolff, Daniel) [Entered: 03/16/2026 11:05 PM]

ENTRY OF APPEARANCE [2164097] filed by Ashley Gorski for American Civil Liberties Union and Center for Democracy and Technology and Patrick Toomey for American Civil Liberties Union and Center for Democracy and Technology. [26-1049] [Entered: 03/17/2026 03:15 PM]

AMICUS FOR PETITIONER BRIEF [2164098] lodged by American Civil Liberties Union and Center for Democracy and Technology [Service Date: 03/16/2026 ] Length of Brief: 6,486 words. [26-1049] [Entered: 03/17/2026 03:18 PM]

NOTICE [2164108] of intention to participate as amicus curiae [Disclosure Listing: Attached] filed by ACT | The App Association [Service Date: 03/17/2026 ] [26-1049] (Scarpelli, Brian) [Entered: 03/17/2026 03:25 PM]

MOTION [2164113] to participate as amicus curiae [Disclosure Listing: Attached] filed by ACT | The App Association [Service Date: 03/17/2026 ] [26-1049] (Scarpelli, Brian) [Entered: 03/17/2026 03:36 PM]

1 Motion to Participate as Amicus Curiae Filed

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2 ACT Amicus Curiae

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CORRECTED AMICUS FOR PETITIONER BRIEF [2164145] filed by Former Senior National Security Government Officials [Service Date: 03/17/2026 ] Length of Brief: 6,132 Words. [26-1049] (Loeb, Alexis) [Entered: 03/17/2026 05:55 PM]

MOTION [2164155] to participate as amicus curiae [Disclosure Listing: Attached] filed by 149 Former Judges and Democracy Defenders Fund [Service Date: 03/17/2026 ] [26-1049] (Brill, Sophia)

1 Motion to Participate as Amicus Curiae Filed

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2 Proposed Amicus Brief of 149 Former Judges and Democracy Defenders Fund

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AMICUS FOR PETITIONER BRIEF [2164156] filed by 149 Former Judges and Democracy Defenders Fund [Service Date: 03/17/2026 ] Length of Brief: 4,224 words. [26-1049] (Brill, Sophia)