Welcome to our dedicated page for Tempus AI SEC filings (Ticker: TEM), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
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Tempus AI (TEM) Form 4: CEO/Chairman Eric P. Lefkofsky reported the sale of 166,250 Class A shares on 28-Jul-2025 under a Rule 10b5-1 trading plan adopted 4-Mar-2025.
- Gray Media, LLC – 33,250 shares sold at weighted averages of $62.16-$65.23; post-sale position: 9,274,033 shares.
- Blue Media, LLC – 133,000 shares sold at the same price ranges; post-sale position: 18,135,469 shares.
After these transactions, Lefkofsky remains the beneficial owner of ~39.8 million shares (2.04 M direct, 27.4 M via Gray/Blue Media and 10 M through a 2025 GRAT plus smaller entities), preserving an overwhelming majority of his stake.
No derivative transactions were reported. The filing notes that detailed price breakdowns are available upon request and that some direct shares were recently transferred to Blue Media.
Takeaway: While any insider sale by the founder can draw attention, the divested amount equals ≈0.4 % of his disclosed holdings, suggesting portfolio rebalancing rather than a meaningful reduction in commitment.
Eric P. Lefkofsky, CEO, Chairman, and 10% owner of Tempus AI, executed significant stock sales through controlled entities on June 17-18, 2025, under a pre-established Rule 10b5-1 trading plan.
Key transaction details:
- Through Gray Media LLC: Sold 50,000 shares at prices ranging $67.31-$71.21, reducing holdings to 9,307,283 shares
- Through Blue Media LLC: Disposed of 400,000 shares at prices ranging $67.22-$71.16, reducing holdings to 15,427,132 shares
Post-transaction beneficial ownership includes 4,878,837 shares held directly, and indirect holdings through various entities including 10,000,000 shares in Lefkofsky Family 2025 GRAT. All transactions were executed pursuant to a Rule 10b5-1 trading plan adopted on June 14, 2024, demonstrating planned, compliant insider selling activity.
Erik Phelps, EVP & Chief Admin & Legal Officer of Tempus AI, executed significant stock sales on June 16, 2025, through a pre-planned Rule 10b5-1 trading arrangement established on September 6, 2024.
The transactions involved a total disposition of 51,317 shares of Class A Common Stock in multiple trades:
- 29,333 shares at average price of $72.01
- 11,186 shares at average price of $72.74
- 8,898 shares at average price of $73.76
- 1,900 shares at average price of $74.41
Following these transactions, Phelps retains direct beneficial ownership of 97,779 shares. The sales were executed at progressively higher price points ranging from $71.28 to $74.55, suggesting favorable market conditions during the trading window.