Tempus AI (TEM) 10% Owner Eric Lefkofsky Sells Shares

What Happened Eric P. Lefkofsky, a 10% owner of Tempus AI (TEM), disposed of 132,591 shares on 2026-08-18 in an open market/private sale. The weighted-average sale price was $49.61, with reported proceeds of $6,577,840. According to the filing, this transaction represents shares sold to satisfy statutory tax withholding obligations tied to the vesting of restricted stock units, not a discretionary sell motivated by trading intent.

Key Details

• Transaction date: 2026-08-18; Form filed: 2026-08-20 (filed within the typical two-business-day window).
• Shares sold: 132,591; weighted-average price: $49.61; price range reported: $49.35–$49.99.
• Gross proceeds: $6,577,840.
• Shares owned after transaction: not specified in the provided filing.
• Footnotes of note:
  • F1: Sale was a mandated "sell to cover" to meet statutory tax withholding from RSU vesting (not a discretionary sale).
  • F2: Reported price is weighted average; multiple trades occurred across the $49.35–$49.99 range.
  • F3: Lefkofsky has multiple managerial/trust roles and control relationships (details of related entities provided in filing).

Context A "sell-to-cover" is a routine tax-withholding mechanism when restricted stock units vest; it does not necessarily reflect the insider’s view of the company’s prospects. As a 10% owner, Lefkofsky is a significant holder; transactions by large holders can affect share counts but this filing indicates a tax-driven sale rather than an opportunistic liquidity trade.