Donnelley Financial Solutions Inc

Director or Officer Adoption or Termination of Trading Agreements

On December 13, 2023, Daniel Leib, the Company’s President and Chief Executive Officer, adopted a trading plan with respect to the sale of 30,000 shares of common stock granted to Mr. Leib as equity incentive compensation (the “Leib Plan”). The Leib Plan is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. Pursuant to the Leib Plan, if the market price of the Company’s common stock is within a specified price range during a trading window between May 16, 2024 and June 28, 2024, up to 30,000 shares of common stock will be sold at market prices.

On December 27, 2023, Craig Clay, the Company’s President of Global Capital Markets, adopted a trading plan with respect to the sale of shares of common stock granted to Mr. Clay as equity incentive compensation (the “Clay Plan”). The Clay Plan is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. The plan provides for the sale of all shares expected to vest during the duration of the plan, excluding any shares withheld by the Company to satisfy income tax withholdings and remittance obligations, if the market price of the Company's common stock exceeds a specified threshold. The Clay Plan expires on December 31, 2024.