Heartflow (HTFL) Stock Surges on Insider Buying as Analysts See Upside: News, Forecasts, and Key Risks for December 18, 2025
Heartflow shares rose about 8.6% to a session high near $29.54 on December 18, 2025, after Director Jeffrey C. Lightcap disclosed buying 40,000 shares for roughly $1.05 million at $26.34 each. The Form 4 filing listed his total holdings at over 6.7 million shares. Heartflow’s market cap stood at approximately $2.24 billion.
