Sensei Biotherapeutics Observes Sharp Decline in Short Interest Sensei Biotherapeutics, Inc. has reported a significant 14.1% drop in short interest as of late February, now totaling 146,700 shares. This marks improved sentiment for the company, which is focused on immuno-oncology therapeutics. Institutional investors have also increased their stakes, with one firm raising its holdings by 355.8% in the third quarter.1