The expansion of Ontrak Health's partnership with Sentara Health represents a significant increase in the potential customer base for its WholeHealth+ program. This expansion not only solidifies the relationship between Ontrak and Sentara but also opens up further opportunities for growth as more self-insured groups are added. The introduction of the Advanced Engagement System across Sentara's commercial population could also enhance Ontrak's service offering, making this news likely to be positively received by investors.