X0306 4 2020-09-17 0 0001651561 Tabula Rasa HealthCare, Inc. TRHC 0001685833 Knowlton Calvin H 228 STRAWBRIDGE DRIVE SUITE 100 MOORESTOWN NJ 08057 1 1 0 0 Chief Executive Officer Common Stock 2020-09-17 4 S 0 1964 41.29 D 742687 I Held by spouse. Common Stock 2020-09-17 4 S 0 6036 42.34 D 736651 I Held by spouse. Common Stock 836669 D Common Stock 20000 I Held by trust for children. Common Stock 20000 I Held by trust for children. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Dr. Orsula V. Knowlton on March 24, 2020. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $40.79 to $41.75, inclusive. The reporting person undertakes to provide to Tabula Rasa HealthCare, Inc., any security holder of Tabula Rasa HealthCare, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) and (3) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $41.92 to $42.88, inclusive. /s/ Brian W. Adams, by Power of Attorney 2020-09-18