Tempus AI is trading at $61.21, down 4.42%, with the decline appearing primarily related to supply concerns following prominent-holder selling.
- The August 28, 2026 selloff extended after disclosures showed CEO Eric Lefkofsky sold approximately $16.3 million in shares; ARK sold 59,276 shares through its ARKK ETF.
- No new company announcement was found on August 31, 2026; broader risk-off trading, with major indexes lower, is adding pressure.