X0306 4/A 2019-12-11 2019-12-11 0 0001669811 Donnelley Financial Solutions, Inc. DFIN 0001233415 GREENFIELD GARY G C/O DONNELLEY FINANCIAL SOLUTIONS 35 WEST WACKER DRIVE CHICAGO IL 60601 1 0 0 0 Common Stock 2019-12-11 4 P 0 5000 10.509 A 29847 D Due to a coding error, the Reporting Person's Form 4 was inadvertently filed with the incorrect transaction code. This Form 4/A is being filed to reflect the correct transaction code of open market purchase. The reported price represents a weighted average sale price. The range of prices at which common stock was purchased was $10.37 to $10.5499 per share. The Reporting Person undertakes to provide to the staff, the issuer or a security holder full information regarding the number of shares purchased at each separate price. Includes 20,339 shares held directly and 9,508 restricted stock units. Jennifer Reiners, pursuant to power of attorney 2019-12-16