X0407 4 2023-06-08 0 0001654151 Deciphera Pharmaceuticals, Inc. DCPH 0001794351 Friedman Franklin Stuart C/O DECIPHERA PHARMACEUTICALS, INC. 200 SMITH STREET WALTHAM MA 02451 1 0 0 0 0 Common Stock 2023-06-08 4 P 0 10000 13.8828 A 10000 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.87 to $13.89, inclusive. The reporting person undertakes to provide to Deciphera Pharmaceuticals, Inc., any security holder of Deciphera Pharmaceuticals, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. /s/ Jeffrey Held, as Attorney-in-Fact 2023-06-12