Private equity firms TPG Capital, Summit Partners and Silversmith Capital Partners agreed to invest in LifeStance Health Partners, a provider of outpatient behavioral health services. Financial terms were not disclosed. "We believe this is the time, now more than ever, to create more access for patients and to grow opportunities for our clinicians and staff. Our partnership with TPG, Summit, and Silversmith will help drive the next phase of growth for LifeStance, as we look to expand our geographic and online digital health footprint, and ultimately serve more patients nationwide seeking mental health services," Michael Lester, LifeStance CEO.