NDAQNasdaq, Inc.

on November 1, 2024, Bradley J. Peterson, Executive Vice President and Chief Information Officer/Chief Technology Officer, adopted a Rule 10b5-1 trading plan for the sale of our common stock in the following amounts: (a) up to 100% of the net vested shares resulting from the vesting of 4,719 restricted stock units on April 1, 2025, (b) up to 100% of the net vested shares resulting from the vesting of 22,494 restricted stock units on July 1, 2025 and (c) up to 100% of the net vested shares upon the settlement of 28,020 performance share units on or about February 19, 2025, with each of the foregoing subject to certain conditions and which plan expires on August 1, 2025 and (ii)

on September 5, 2024, Bryan E. Smith, Executive Vice President and Chief People Officer, adopted a Rule 10b5-1 trading plan for the sale of (a) up to 9,000 shares of our common stock and (b) after an aggregate of 4,005 shares of our common stock vest on April 1, 2025 and April 3, 2025, any shares remaining after the applicable number of shares of common stock are forfeited to satisfy tax obligations, subject to certain conditions and which expires on May 30, 2025.

on August 14, 2024, Bradley J. Peterson, Executive Vice President and Chief Information Officer/Chief Technology Officer, adopted a Rule 10b5-1 trading plan for the sale of up to 11,820 shares of our common stock, subject to certain conditions and which expires on November 29, 2024 and

on August 7, 2024, Jeremy Skule, Executive Vice President and Chief Strategy Officer, adopted a Rule 10b5-1 trading plan for the sale of up to 36,149 shares of our common stock, subject to certain conditions and which expires on December 31, 2024,

on June 13, 2024, John A. Zecca, Executive Vice President and Chief Legal, Risk and Regulatory Officer, adopted a Rule 10b5-1 trading plan for the sale of up to 11,000 shares of our common stock, subject to certain conditions and which expires on June 13, 2025.

on April 26, 2024, Bradley J. Peterson, Executive Vice President and Chief Information Officer/Chief Technology Officer, adopted a Rule 10b5-1 trading plan for the sale of up to 40,000 shares of our common stock, subject to certain conditions and which expires on September 13, 2024

During the three months ended September 30, 2023, none of the Company’s directors or officers adopted, terminated or modified a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement” (as such terms are defined in Item 408 of Regulation S-K) except as follows: on August 31, 2023, Bryan E. Smith, Executive Vice President and Chief People Officer, adopted a Rule 10b5-1 trading plan for the sale of up to 12,500 shares of our common stock, subject to certain conditions. The plan's expiration date is May 10, 2024.