0001654151 2021-08-03 2021-08-03 false 0001654151 8-K 2021-08-03 Deciphera Pharmaceuticals, Inc. DE 001-38219 30-1003521 200 Smith Street Waltham MA 02451 (781) 209-6400 false false false false Common Stock, $0.01 Par Value DCPH NASDAQ false