Comments on IEX Rulemaking

Self-Regulatory Organizations; Investors Exchange LLC; Notice of Filing of a Proposed Rule Change to Adopt Rules to Govern the Trading of Options on the Exchange for a New Facility Called IEX Options

Comments have been received from individuals and entities using a variety of Letter Types:

Comment
A: 514
B: 6

Filter comments

Date Received
Date Letter Type Commenter Name
Public Comment KLI Limited
Public Comment Mehmet S. Kinak, Vice President & Global Head of Equity Trading, T. Rowe Price Associates, Inc.; Jonathan D. Siegel, Vice President & Managing Legal Counsel, Legislative & Regulatory Affairs, T. Rowe Price; and Tamara P. Wiggs, Vice President & Head of Trading, T. Rowe Price Investment Management, Inc
Public Comment Jaime Llano, Managing Director - Head of Multi-Asset Trading, Teacher Retirement System of Texas; Sam Masoudi, Chief Investment Officer, Wyoming Retirement System; Zachary Davis, Head of US Equity Trading, Janus Henderson Investors; Michael C. Viteri, Chief Investment Officer, Arizona State Retirement System; Anthony W. Godonis, Principal, Director of Trading, Copeland Capital Management, LLC; Adam HJ Conn, Director, Head of Trading, Baillie Gifford Overseas LTD; Myriam Deslandes, Vice-President, Strategy, Execution and Portfolio Solutions, La Caisse; and Kevin Duggan, Senior Managing Director, Global Trading and Beta, Ontario Teachers' Pension Plan
Public Comment John J. Lothian, Executive Chairman & CEO, John J. Lothian & Company, Inc. and Publisher, John Lothian News
Public Comment Mark R. Warner, United States Senator
Public Comment John Ramsay, Chief Market Policy Officer, Investors Exchange LLC
Public Comment James Cosentino, Head of Trading, Chicago, Maven Securities
Meeting with SEC Officials Memorandum from the Division of Trading and Markets regarding an August 14, 2025 meeting with representatives of Citadel Securities
Public Comment Stephen John Berger, Managing Director, Global Head of Government & Regulatory Policy, Citadel Securities
Public Comment Jonathan Stager
Public Comment Adam Nunes, Head of Risk, Hudson River Trading LLC
Public Comment Brian P. Donnelly, Founder, Volant Trading
Public Comment Roger Marshall, M.D., United States Senator
Meeting with SEC Officials Memorandum from the Division of Trading and Markets regarding a July 30, 2025 meeting with representatives of MEMX LLC
Public Comment Jonatan
Public Comment Jacob Legorreta
Public Comment Anonymous
Public Comment Josh Dobos
Public Comment Robert Turnbull
Public Comment Greg Linder
Public Comment Jefferson Nunn
Public Comment Nate Sharpinen
Public Comment Travis M. Spaniel
Public Comment Jason Danielson
Public Comment Joseph Michael Gugino
Public Comment Vincent Ashley
Public Comment Anonymous
Public Comment Bryce Morrison
Public Comment Chester O'Malley
Public Comment Chris Robinson

Last Reviewed or Updated: Dec. 18, 2025

File Number
SR-IEX-2025-02
Release Number
34-102190
Related Materials
How to submit comments