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

What Happened

• Eric P. Lefkofsky, a reported 10% owner of Tempus AI (TEM), disposed of 250,000 shares on July 28, 2026 in multiple open-market/private sale transactions. The reported weighted average prices were $41.34, $42.36 and $42.95 across the blocks, producing aggregate proceeds of approximately $10,514,913.
• These sales were made pursuant to a Rule 10b5-1 trading plan adopted by Lefkofsky on March 8, 2026. This is a sale of existing shares (not a purchase or option exercise), which is generally considered routine when covered by a pre-established 10b5-1 plan.

Key Details

• Transaction date: July 28, 2026; Form 4 filed July 30, 2026 (timely filing).
• Shares sold: 250,000 total across multiple trades.
• Reported weighted-average prices: $41.34, $42.36, $42.95; underlying trade prices ranged approximately $40.79–$43.13 per footnotes.
• Total proceeds: ≈ $10,514,913.
• Shares owned after transaction: not specified in the details provided here (the filing includes footnotes about ownership adjustments related to entity contributions/distributions).
• Notable footnotes:
  • F1: Sales were made under a 10b5-1 trading plan (adopted March 8, 2026).
  • F2/F4/F5: Reported prices are weighted averages; the filer will provide a per-price breakdown on request.
  • F3/F6/F7: Reporting person has complex ownership via entities (LLCs, family trusts, GRATs); some footnotes describe contributions/distributions affecting post-transaction holdings.
• Transaction code: S = Sale.

Context

• As a 10% owner (not necessarily an executive salary-based trade), Lefkofsky’s sales under a 10b5-1 plan are typically pre-planned and do not by themselves signal a change in company fundamentals. Retail investors should view this as a substantial insider disposition in size and proceeds, but refrain from inferring motive from the filing alone.