X0306 4 2020-03-04 0 0001520697 Acadia Healthcare Company, Inc. ACHC 0001337573 Howard Christopher L 6100 TOWER CIRCLE, SUITE 1000 FRANKLIN TN 37067 0 1 0 0 EVP, GC and Secretary Common Stock 2020-03-04 4 A 0 6799 0.00 A 77881 D Common Stock 100975 I See Footnote Shares received upon vesting of performance vesting restricted stock units awarded on March 2, 2018. Mr. Howard expressly disclaims beneficial ownership of the reported securities, except to the extent of his pecuniary interest therein. Includes 40,975 shares held by the Christopher L. Howard Family 2017 Grantor Retained Annuity Trust, 40,975 shares held by the Angie Parrott Howard Family 2017 Grantor Retained Annuity Trust and 19,025 shares held by the reporting person's spouse. /s/ Christopher L. Howard 2020-03-05