Form 4: Tempus AI CEO Sells Shares Under 10b5-1 Plan

Tempus AI CEO and Chairman Eric P. Lefkofsky sold 333,500 shares of Class A Common Stock on September 25, 2025, through pre-arranged Rule 10b5-1 trading plans.

Summary

• Eric P. Lefkofsky, CEO and Chairman of Tempus AI, Inc., reported sales of Class A Common Stock.
• A total of 333,500 shares were sold on September 25, 2025.
• The sales were executed through pre-arranged Rule 10b5-1 trading plans adopted on March 4, 2025.
• Shares were sold indirectly through Gray Media, LLC (66,501 shares) and Blue Media, LLC (266,999 shares).
• Weighted average sale prices ranged from $75.09 to $77.88 per share.
• Following these transactions, Mr. Lefkofsky beneficially owns 39,114,745 shares of Class A Common Stock, including 2,037,500 directly and 37,077,245 indirectly through various entities.

Sentiment

Score: 4

Explanation: The sentiment is slightly negative due to significant insider selling by the CEO and Chairman. While the presence of a 10b5-1 plan mitigates the negative perception by indicating pre-planning rather than opportunistic selling, a large sale by a key insider can still raise questions among investors about future prospects or personal liquidity needs.

Positives

• The sales were conducted under a Rule 10b5-1 trading plan, indicating a pre-scheduled and non-discretionary transaction, which can mitigate concerns about opportunistic insider selling.

Negatives

• Significant insider selling by a key executive (CEO and Chairman) and 10% owner could be perceived negatively by investors, potentially signaling a lack of confidence or a desire to diversify holdings.
• The total value of shares sold is substantial, exceeding $25 million based on the reported prices.

Risks

• Increased selling pressure on Tempus AI's stock due to a large insider sale.
• Potential negative investor sentiment if the market interprets the sales as a lack of confidence from a key executive, despite the 10b5-1 plan.

Future Outlook

The filing does not provide any forward-looking statements or guidance regarding the company's future performance or strategic direction.

Industry Context

Insider sales, particularly by high-ranking executives, are common occurrences in publicly traded companies. While often viewed with scrutiny, sales executed under a Rule 10b5-1 plan are generally considered less indicative of a negative outlook for the company, as they are pre-scheduled and designed to avoid accusations of trading on material non-public information. Such plans allow insiders to diversify their holdings or manage liquidity needs over time.

Comparison to Industry Standards

• NA

Stakeholder Impact

• Shareholders: May interpret the significant insider selling as a potential signal, despite the 10b5-1 plan, which could lead to increased scrutiny or selling pressure on the stock.

Next Steps

• The filing does not mention any specific future actions, events, or milestones for the company or the reporting person, beyond the completion of the reported sales.

Key Dates

Recommendation

While the insider sale is substantial, it was conducted under a pre-arranged 10b5-1 plan, which suggests it's a planned diversification or liquidity event rather than a reaction to new negative information. Without additional company-specific news or financial performance data, a Form 4 alone is insufficient to warrant a 'buy' or 'sell' recommendation. Investors should 'hold' and monitor future company developments and financial reports.

Keywords

Tempus AI, TEM, Eric P. Lefkofsky, Insider Trading, Form 4, Stock Sale, 10b5-1 Plan, CEO, Chairman, Beneficial Ownership