X0306 4 2021-09-14 0001136174 Ontrak, Inc. OTRK 0000904534 PEIZER TERREN S 2120 COLORADO AVENUE, #230 SANTA MONICA CA 90404 1 1 1 Executive Chairman 0001797168 Acuitas Group Holdings, LLC 2120 COLORADO AVENUE, #230 SANTA MONICA CA 90404 1 Common Stock 2021-09-14 4 S 0 15000 10.942 D 9262722 I By Acuitas Common Stock 2021-09-15 4 S 0 15000 10.5651 D 9247722 I By Acuitas Common Stock 2021-09-16 4 S 0 15000 10.5743 D 9232722 I By Acuitas This Form 4 is jointly filed by Terren S. Peizer ("Mr. Peizer") and Acuitas Group Holdings, LLC ("Acuitas"). Mr. Peizer is the Chairman and sole member of Acuitas and, in such capacity, exercises voting and investment power over any securities held for the accounts of Acuitas. Represents sales effected pursuant to a Rule 10b5-1 trading plan entered into by Acuitas on August 13, 2021. The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $10.6142 to $11.2901, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $10.42 to $10.75, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported is a volume weighted average price. The shares were sold in multiple transactions at prices ranging from $10.43 to $10.77, inclusive. The Reporting Persons undertake to provide the issuer, any security holder of the issuer, and the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Terren S. Peizer 2021-09-16 /s/ Terren S. Peizer - Chairman, Acuitas Group 2021-09-16