Citadel Securities LLC v. SEC
Petitioner: Citadel Securities LLC
Respondent: Securities and Exchange Commission
Intervenor: Investors Exchange LLC
Amicus Curiae: Andrew N. Vollmer, Healthy Markets Association, New York Stock Exchange LLC, Better Markets, Inc., NYSE Arca, Inc., XTX Markets LLC, NYSE American LLC, NYSE National, Inc. and NYSE Chicago, Inc.
Case Number: 20-1424
Filed: October 16, 2020
Court: U.S. Court of Appeals, D.C. Circuit
Nature of Suit: Other

Opinions

We have the following opinions for this case:

Date Filed Description
July 29, 2022 Summary Citadel Securities LLC v. SEC

Docket Report

This docket was last retrieved on September 21, 2022. A more recent docket listing may be available from PACER.

Date Filed Document Text
September 21, 2022 Opinion or Order MANDATE ISSUED to Securities & Exchange Commission. [20-1424] [Entered: 09/21/2022 10:12 AM]
July 29, 2022 Opinion or Order OPINION [1956972] filed (Pages: 20) for the Court by Judge Walker. [20-1424] [Entered: 07/29/2022 10:16 AM]
July 29, 2022 Opinion or Order CLERK'S ORDER [1956973] filed withholding issuance of the mandate. [20-1424] [Entered: 07/29/2022 10:17 AM]
July 29, 2022 Opinion or Order PER CURIAM JUDGMENT [1956966] filed that Citadel's petition for review be denied, for the reasons in the accompanying opinion . Before Judges: Rao, Walker and Sentelle. [20-1424] [Entered: 07/29/2022 10:12 AM]
November 9, 2021 Opinion or Order TRANSCRIPT [1921633] of oral argument [20-1424] [Entered: 11/09/2021 02:24 PM]
November 3, 2021 Opinion or Order NOTICE [1920749] to withdraw attorney Reedy Swanson who represented Investors Exchange LLC in 20-1424 filed by Investors Exchange LLC [Service Date: 11/03/2021 ] [20-1424] (Swanson, Reedy) [Entered: 11/03/2021 09:43 AM]
October 25, 2021 Opinion or Order ORAL ARGUMENT HELD before Judges Rao, Walker and Sentelle. [20-1424] [Entered: 10/25/2021 11:33 AM]
October 15, 2021 Opinion or Order FORM 72 submitted by arguing attorney, Catherine E. Stetson, on behalf of Intervenor for Respondent Investors Exchange LLC (For Internal Use Only: Form is restricted to protect counsel's personal contact information) . [20-1424] (Stetson, Catherine) [Entered: 10/15/2021 11:32 AM]
October 14, 2021 Opinion or Order FORM 72 submitted by arguing attorney, Emily True Parise, on behalf of Respondent SEC (For Internal Use Only: Form is restricted to protect counsel's personal contact information) . [20-1424] (Parise, Emily) [Entered: 10/14/2021 11:17 AM]
October 13, 2021 Opinion or Order PER CURIAM ORDER [1917915] filed allocating oral argument time as follows: Petitioner - 10 Minutes, Respondent - 5 Minutes, Intervenor for Respondent - 5 Minutes. Directing the parties to file Form 72 notice of arguing attorney by 10/18/2021. [20-1424] [Entered: 10/13/2021 02:48 PM]
September 27, 2021 Opinion or Order FORM 72 submitted by arguing attorney, Jeffrey B. Wall, on behalf of Petitioner Citadel Securities LLC (For Internal Use Only: Form is restricted to protect counsel's personal contact information) . [20-1424] (Wall, Jeffrey) [Entered: 09/27/2021 10:39 AM]
August 6, 2021 Opinion or Order CLERK'S ORDER [1909293] filed scheduling oral argument on Monday, 10/25/2021. [20-1424] [Entered: 08/06/2021 12:50 PM]
July 20, 2021 Opinion or Order LETTER [1907059] advising of arguing counsel's availability for oral argument filed by Investors Exchange LLC [Service Date: 07/20/2021 ] [20-1424] (Stetson, Catherine) [Entered: 07/20/2021 01:28 PM]
May 26, 2021 Opinion or Order PETITIONER FINAL REPLY BRIEF [1900210] filed by Citadel Securities LLC [Service Date: 05/26/2021 ] Length of Brief: 6,359 words. [20-1424] (Stancil, Mark) [Entered: 05/26/2021 02:00 PM]
May 26, 2021 Opinion or Order PETITIONER FINAL BRIEF [1900208] filed by Citadel Securities LLC [Service Date: 05/26/2021 ] Length of Brief: 12,520 words. [20-1424] (Stancil, Mark) [Entered: 05/26/2021 01:58 PM]
May 26, 2021 Opinion or Order AMICUS FOR RESPONDENT FINAL BRIEF [1900217] filed by Healthy Markets Association [Service Date: 05/26/2021 ] Length of Brief: 4,962 words. [20-1424] (Burns, Thomas) [Entered: 05/26/2021 02:45 PM]
May 26, 2021 Opinion or Order RESPONDENT FINAL BRIEF [1900218] filed by SEC [Service Date: 05/26/2021 ] Length of Brief: 12,658 words. [20-1424] (Parise, Emily) [Entered: 05/26/2021 02:46 PM]
May 26, 2021 Opinion or Order INTERVENOR FOR RESPONDENT FINAL BRIEF [1900253] filed by Investors Exchange LLC [Service Date: 05/26/2021 ] Length of Brief: 9,087 words. [20-1424] (Stetson, Catherine) [Entered: 05/26/2021 04:41 PM]
May 26, 2021 Opinion or Order AMICUS FOR PETITIONER FINAL BRIEF [1900186] filed by Mr. Andrew N. Vollmer [Service Date: 05/26/2021 ] Length of Brief: 4,899. [20-1424] (Shapiro, Alexandra) [Entered: 05/26/2021 12:49 PM]
May 24, 2021 Opinion or Order AMICUS FOR PETITIONER FINAL BRIEF [1899820] filed by New York Stock Exchange LLC, NYSE American LLC, NYSE Arca, Inc., NYSE Chicago, Inc. and NYSE National, Inc. [Service Date: 05/24/2021 ] Length of Brief: 5,416 Words. [20-1424] (Henkin, Douglas) [Entered: 05/24/2021 12:42 PM]
May 19, 2021 Opinion or Order JOINT APPENDIX [1899396] filed by Citadel Securities LLC, Investors Exchange LLC and SEC. [Volumes: 2] [Service Date: 05/19/2021 ] [20-1424] (Stancil, Mark) [Entered: 05/19/2021 02:41 PM]
May 12, 2021 Opinion or Order PETITIONER REPLY BRIEF [1898437] filed by Citadel Securities LLC [Service Date: 05/12/2021 ] Length of Brief: 6,476 Words. [20-1424] (Stancil, Mark) [Entered: 05/12/2021 07:24 PM]
May 12, 2021 Opinion or Order ENTRY OF APPEARANCE [1898430] filed by Jeffrey B. Korn and co-counsel Kristin E. Bender on behalf of Petitioner Citadel Securities LLC. [20-1424] (Bender, Kristin) [Entered: 05/12/2021 05:46 PM]
April 14, 2021 Opinion or Order NOTICE [1894576] of intention to participate as amicus curiae [Disclosure Listing: Attached] filed by XTX Markets LLC [Service Date: 04/14/2021 ] [20-1424] (Rubens, Daniel) [Entered: 04/14/2021 02:00 PM]
April 14, 2021 Opinion or Order ERRATA [1894477] filed by XTX Markets LLC to Amicus final brief [ # 1894425-2 ]. Reason for errata: to correct a citation error. [Service Date: 04/14/2021 ] [20-1424] (Rubens, Daniel) [Entered: 04/14/2021 09:59 AM]
April 13, 2021 Opinion or Order CORRECTED AMICUS FOR RESPONDENT FINAL BRIEF [1894425] filed by XTX Markets LLC [Service Date: 04/13/2021 ] Length of Brief: 6,114 words. [20-1424] (Rubens, Daniel) [Entered: 04/13/2021 07:00 PM]
April 12, 2021 Opinion or Order AMICUS FOR RESPONDENT FINAL BRIEF [1894191] filed by XTX Markets LLC [Service Date: 04/12/2021 ] Length of Brief: 6,114 Words. [20-1424] (Rubens, Daniel) [Entered: 04/12/2021 04:29 PM]
April 12, 2021 Opinion or Order INTERVENOR FOR RESPONDENT BRIEF [1894186] filed by Investors Exchange LLC [Service Date: 04/12/2021 ] Length of Brief: 9,093 words. [20-1424] (Stetson, Catherine) [Entered: 04/12/2021 04:24 PM]
April 12, 2021 Opinion or Order AMICUS FOR RESPONDENT BRIEF [1894176] filed by Better Markets, Inc. [Service Date: 04/12/2021 ] Length of Brief: 6,495 words. [20-1424] (Kelleher, Dennis) [Entered: 04/12/2021 03:46 PM]
April 12, 2021 Opinion or Order NOTICE [1894148] of intention to participate as amicus curiae [Disclosure Listing: Attached] filed by Healthy Markets Association [Service Date: 04/12/2021 ] [20-1424]--[Edited 04/14/2021 by LMF] (Burns, Thomas) [Entered: 04/12/2021 02:03 PM]
April 12, 2021 Opinion or Order AMICUS FOR RESPONDENT BRIEF [1894154] filed by Healthy Markets Association [Service Date: 04/12/2021 ] Length of Brief: 4,941 words. [20-1424] (Burns, Thomas) [Entered: 04/12/2021 02:11 PM]
April 8, 2021 Opinion or Order ENTRY OF APPEARANCE [1893736] filed by Catherine E. Stetson and co-counsel Katherine B. Wellington, Reedy C. Swanson on behalf of Intervenor for Respondent Investors Exchange LLC. [20-1424] (Stetson, Catherine) [Entered: 04/08/2021 04:20 PM]
April 5, 2021 Opinion or Order RESPONDENT BRIEF [1893193] filed by SEC [Service Date: 04/05/2021 ] Length of Brief: 12,659 words. [20-1424] (Parise, Emily) [Entered: 04/05/2021 04:30 PM]
March 19, 2021 Opinion or Order ENTRY OF APPEARANCE [1890759] filed by Emily True Parise on behalf of Respondent SEC. [20-1424] (Parise, Emily) [Entered: 03/19/2021 03:16 PM]
February 13, 2021 Opinion or Order CORRECTED AMICUS FOR PETITIONER BRIEF [1885239] filed by New York Stock Exchange LLC, NYSE American LLC, NYSE Arca, Inc., NYSE Chicago, Inc. and NYSE National, Inc. [Service Date: 02/13/2021 ] Length of Brief: 5,529 Words. [20-1424] (Henkin, Douglas) [Entered: 02/13/2021 06:03 PM]
February 12, 2021 Opinion or Order CORRECTED PETITIONER BRIEF [1885194] filed by Citadel Securities LLC [Service Date: 02/12/2021 ] Length of Brief: 13,000 Words. [20-1424] (Stancil, Mark) [Entered: 02/12/2021 04:41 PM]
February 9, 2021 Opinion or Order NOTICE [1884469] of intention to participate as amicus curiae [Disclosure Listing: Not Applicable to this Party] filed by Andrew N. Vollmer [Service Date: 02/09/2021 ] [20-1424]--[Edited 02/10/2021 by LMF] (Shapiro, Alexandra) [Entered: 02/09/2021 03:01 PM]
February 9, 2021 Opinion or Order AMICUS FOR PETITIONER BRIEF [1884470] filed by Andrew N. Vollmer [Service Date: 02/09/2021 ] Length of Brief: 4,908. [20-1424]--[Edited 02/10/2021 by LMF] (Shapiro, Alexandra) [Entered: 02/09/2021 03:03 PM]
February 9, 2021 Opinion or Order AMICUS FOR PETITIONER BRIEF [1884515] filed by New York Stock Exchange LLC, NYSE Arca, Inc., NYSE American LLC, NYSE National, Inc., and NYSE Chicago, Inc. [Service Date: 02/09/2021 ] Length of Brief: 5,389 Words. [20-1424]--[Edited 02/10/2021 by LMF] (Henkin, Douglas) [Entered: 02/09/2021 09:26 PM]
February 3, 2021 Opinion or Order LETTER [1883421] sent to counsel concerning the use of uncommon acronyms and abbreviations in briefs. Nonconforming Briefs: [ # 1883412-2 ]. [20-1424] [Entered: 02/03/2021 08:50 AM]
February 2, 2021 Opinion or Order PETITIONER BRIEF [1883412] filed by Citadel Securities LLC [Service Date: 02/02/2021 ] Length of Brief: 12,998 words. [20-1424] (Stancil, Mark) [Entered: 02/02/2021 10:12 PM]
December 15, 2020 Opinion or Order CLERK'S ORDER [1875882] filed granting motion to establish briefing schedule [ # 1873194-2 ], setting briefing schedule: PETITIONER Brief due 02/02/2021. RESPONDENT Brief due on 04/05/2021. INTERVENOR FOR RESPONDENT Brief due 04/12/2021. PETITIONER Reply Brief due 05/12/2021. DEFERRED APPENDIX due 05/19/2021. Final Briefs due 05/26/2021. [20-1424] [Entered: 12/15/2020 03:57 PM]
December 9, 2020 Opinion or Order CLERK'S ORDER [1875110] filed granting motion for leave to intervene [ # 1871054-2 ]. [20-1424] [Entered: 12/09/2020 04:18 PM]
December 4, 2020 Opinion or Order CERTIFIED INDEX TO RECORD [1874367] filed by SEC [Service Date: 12/04/2020 ] [20-1424] (Wagner, Brooke) [Entered: 12/04/2020 09:42 AM]
November 25, 2020 Opinion or Order JOINT MOTION [1873194] to establish briefing schedule filed by Citadel Securities LLC and SEC (Service Date: 11/25/2020 by CM/ECF NDA) Length Certification: 146 Words. [20-1424] (Korn, Jeffrey) [Entered: 11/25/2020 10:14 AM]
November 20, 2020 Opinion or Order CORRECTED STATEMENT OF INTENT REGARDING APPENDIX DEFERRAL [1872552] filed by Citadel Securities LLC [Service Date: 11/20/2020 ] Intent: AppxDeferred [20-1424] (Korn, Jeffrey) [Entered: 11/20/2020 04:07 PM]
November 19, 2020 Opinion or Order ENTRY OF APPEARANCE [1872170] filed by Jeffrey B. Korn and co-counsel Mark T. Stancil, Patricia O. Haynes on behalf of Petitioner Citadel Securities LLC. [20-1424] (Korn, Jeffrey) [Entered: 11/19/2020 04:38 PM]
November 19, 2020 Opinion or Order STATEMENT OF ISSUES [1872173] filed by Citadel Securities LLC [Service Date: 11/19/2020 ] [20-1424] (Korn, Jeffrey) [Entered: 11/19/2020 04:41 PM]
November 19, 2020 Opinion or Order DOCKETING STATEMENT [1872171] filed by Citadel Securities LLC [Service Date: 11/19/2020 ] [20-1424] (Korn, Jeffrey) [Entered: 11/19/2020 04:40 PM]
November 19, 2020 Opinion or Order CERTIFICATE AS TO PARTIES, RULINGS AND RELATED CASES [1872174] filed by Citadel Securities LLC [Service Date: 11/19/2020 ] [20-1424] (Korn, Jeffrey) [Entered: 11/19/2020 04:41 PM]
November 13, 2020 Opinion or Order MOTION [1871054] for leave to intervene [Disclosure Listing: Attached] filed by Investors Exchange LLC [Service Date: 11/13/2020 ] [20-1424]--[Edited 11/18/2020 by SRJ] (Stetson, Catherine) [Entered: 11/13/2020 12:03 PM]
November 4, 2020 Opinion or Order JOINT STATEMENT OF INTENT REGARDING APPENDIX DEFERRAL [1869714] filed by Citadel Securities LLC and SEC [Service Date: 11/04/2020 ] Intent: AppxDeferred [20-1424] (Korn, Jeffrey) [Entered: 11/04/2020 01:51 PM]
October 21, 2020 Opinion or Order ENTRY OF APPEARANCE [1867535] filed by Brooke Willig and co-counsel Dominick V. Freda, Michael A. Conley on behalf of Respondent SEC. [20-1424] (Wagner, Brooke) [Entered: 10/21/2020 02:54 PM]
October 20, 2020 CERTIFIED COPY [1867325] of Petition for Review sent to respondent [ # 1867322-2 ] [20-1424] [Entered: 10/20/2020 03:44 PM]
October 20, 2020 CLERK'S ORDER [1867330] filed directing party to file initial submissions: PETITIONER docketing statement due 11/19/2020. PETITIONER certificate as to parties due 11/19/2020. PETITIONER statement of issues due 11/19/2020. PETITIONER underlying decision due 11/19/2020. PETITIONER deferred appendix statement due 11/19/2020. PETITIONER procedural motions due 11/19/2020. PETITIONER dispositive motions due 12/04/2020; directing party to file initial submissions: RESPONDENT entry of appearance due 11/19/2020. RESPONDENT procedural motions due 11/19/2020. RESPONDENT certified index to record due 12/04/2020. RESPONDENT dispositive motions due 12/04/2020 [20-1424] [Entered: 10/20/2020 03:51 PM]
October 16, 2020 PETITION FOR REVIEW [1867322] of a decision by federal agency filed by Citadel Securities LLC [Service Date: 10/16/2020 ] Disclosure Statement: Attached; Certificate of Parties: Not Applicable to this Filing. [20-1424] [Entered: 10/20/2020 03:41 PM]
October 16, 2020 PETITION FOR REVIEW CASE docketed. [20-1424] [Entered: 10/20/2020 03:38 PM]

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Search for this case: Citadel Securities LLC v. SEC
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Respondent: Securities and Exchange Commission
Represented By: Dominick V. Freda
Represented By: Michael Andrew Conley
Represented By: Brooke Willig
Represented By: Emily True Parise
Represented By: Brooke Wagner
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Petitioner: Citadel Securities LLC
Represented By: Jeffrey Brian Korn
Represented By: Mark Thomas Stancil
Represented By: Kristin Bender Esquire
Represented By: Patricia O. Haynes
Represented By: Jeffrey B. Wall
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Intervenor: Investors Exchange LLC
Represented By: Catherine Emily Stetson Esquire
Represented By: Katherine Booth Wellington
Represented By: Sundeep Iyer
Represented By: Neal Kumar Katyal
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Amicus curiae: Andrew N. Vollmer
Represented By: Daniel O'Neill
Represented By: Alexandra Anastasia E. Shapiro
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Amicus curiae: Healthy Markets Association
Represented By: Thomas Burns
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Amicus curiae: New York Stock Exchange LLC
Represented By: Christina M. Carroll
Represented By: Douglas Wolfe Henkin
Represented By: Kristen Rodriguez
Represented By: Richard Marc Zuckerman Esquire
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Amicus curiae: Better Markets, Inc.
Represented By: Stephen W. Hall
Represented By: Dennis M. Kelleher
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Amicus curiae: NYSE Arca, Inc.
Represented By: Christina M. Carroll
Represented By: Douglas Wolfe Henkin
Represented By: Kristen Rodriguez
Represented By: Richard Marc Zuckerman Esquire
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Amicus curiae: XTX Markets LLC
Represented By: Alexandra Bursak
Represented By: Daniel A. Rubens
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Amicus curiae: NYSE American LLC
Represented By: Christina M. Carroll
Represented By: Douglas Wolfe Henkin
Represented By: Kristen Rodriguez
Represented By: Richard Marc Zuckerman Esquire
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Amicus curiae: NYSE National, Inc.
Represented By: Christina M. Carroll
Represented By: Douglas Wolfe Henkin
Represented By: Kristen Rodriguez
Represented By: Richard Marc Zuckerman Esquire
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Amicus curiae: NYSE Chicago, Inc.
Represented By: Christina M. Carroll
Represented By: Douglas Wolfe Henkin
Represented By: Kristen Rodriguez
Represented By: Richard Marc Zuckerman Esquire
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