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

What Happened

• Eric P. Lefkofsky, a reported 10% owner of Tempus AI (TEM), sold a total of 200,000 shares in open‑market transactions on 2026-09-17 (reported on Form 4 filed 2026-09-18). The sales consisted of six blocks:
  • 52,558 shares @ $80.52 = $4,231,970
  • 4,942 shares @ $81.09 = $400,747
  • 123,391 shares @ $80.52 = $9,935,443
  • 11,609 shares @ $81.09 = $941,374
  • 6,855 shares @ $80.52 = $551,965
  • 645 shares @ $81.09 = $52,303
• Aggregate proceeds were approximately $16.11 million. These were sales (S) — not purchases or option exercises — and therefore do not represent a bullish purchase signal.

Key Details

• Transaction date: 2026-09-17; Form 4 filed: 2026-09-18 (appears timely).
• Prices: reported as weighted averages; ranges noted in footnotes were $80.00–$80.92 and $81.00–$81.26 for different blocks.
• Shares owned after transaction: not specified in the provided summary of the filing.
• Footnotes: F1 — trades were made pursuant to a Rule 10b5‑1 trading plan adopted March 8, 2026. F3 — the filing notes multiple entities and family trusts connected to the reporting person; F2/F4 — seller will provide detailed per‑price sale breakdown upon request.
• Transaction code: S = Sale.

Context

• As a 10% owner, Lefkofsky is a large shareholder; such sales can be routine (portfolio rebalancing, pre-set 10b5‑1 plan) and do not necessarily signal changed views on company fundamentals.
• The use of a 10b5‑1 plan means trades were pre‑scheduled under a written plan, which can reduce the likelihood the sales were based on contemporaneous nonpublic information.