JSPR ▼ -4.8% - Jasper Therapeutics, Inc. $JSPR - Jasper Therapeutics Announces Key Regulatory and Clinical Appointments Jasper Therapeutics shares fell 4.8% today following the company's announcement of key regulatory and clinical appointments. The market's negative reaction to leadership additions suggests investor concerns may outweigh confidence in the new hires, or the appointments failed to address broader concerns about the company's pipeline or near-term catalysts. 15-SEP-2026 04:05 PM ET