Comments on FINRA Rulemaking

Notice of Filing of a Proposed Rule Change to Amend Rule 6191 to Implement an Anonymous, Grouped Masking Methodology for Over-the-Counter Activity in Connection with Website Data Publication of Appendix B Data Pursuant to the Regulation NMS Plan to Implement a Tick Size Pilot Program

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Date Received
Date Letter Type Commenter Name
Public Comment Stephen Berger, Managing Director, Government and Regulatory Policy, Citadel Securities
Public Comment Christopher W. Bok, Financial Information Forum
Public Comment Alisa McCoy

Last Reviewed or Updated: Dec. 18, 2025

File Number
SR-FINRA-2017-006
Release Number
34-80193
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