LEFKOFSKY ERIC P 4

What Happened
Eric P. Lefkofsky, a 10% owner of Tempus AI (TEM), disposed of 22,335 shares on 2026-05-19 in an open-market sell-to-cover transaction. The weighted-average price was $44.07, generating approximately $984,303. According to the filing, this sale was required to satisfy statutory tax withholding on vested restricted stock units and was not a discretionary sale by the reporting person.

Key Details

• Transaction date: 2026-05-19; Form 4 filed 2026-05-21 (timely filing).
• Sale amount: 22,335 shares at a weighted-average price of $44.07; total proceeds ≈ $984,303.
• Price range: shares sold in multiple trades at prices between $43.65 and $44.46 (weighted average reported).
• Reason: Mandatory "sell to cover" to satisfy tax withholding obligations on vested RSUs (footnote). Not a voluntary trade.
• Shares owned after transaction: not specified in the provided filing excerpt.
• Reporting status: Lefkofsky is a 10% owner; filing notes related entities and trustee roles (see footnote on controlled entities and family foundations).

Context
Sell-to-cover transactions are common when restricted stock units vest and the company’s plan requires withholding tax be satisfied by selling shares. Such sales are routine and do not necessarily signal the insider’s view on the company’s prospects.