SEC Filing Analysis: Tempus AI, Inc. (TEM)

Executive Summary

• Trading Significance: Low
• Key Takeaway: Founder and key insider Eric Lefkofsky has filed a notice of a proposed sale of 166,250 shares valued at approximately $11.7 million, executed via entities he manages under a pre-scheduled 10b5-1 trading plan.
• Market Impact: The transaction's impact is expected to be minimal due to its small size relative to the company's market capitalization and the pre-planned nature of the sale.

Company Information

Field	Value
Company	Tempus AI, Inc.
Ticker Symbol	TEM
CIK	0001717115
Industry	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.

Insider Information

Field	Value
Name	Eric Lefkofsky
CIK	0001114357
Title/Position	Officer
Relationship	Officer, Director, 10% Stockholder

Transaction Details

Field	Value
Form Type	144
Transaction Date	2025-11-20 (Approximate)
Transaction Code	S (Proposed Sale)
Security Type	Class A Common
Shares Involved	166,250
Price Per Share	$70.40 (implied)
Total Value	$11,703,285
Shares Owned After	Not specified
Ownership Type	Indirect

Financial Impact Assessment

Transaction Materiality

Metric	Value
Transaction Value	$11,703,285
% of Market Cap	0.096%
Shares Transacted	166,250
% of Shares Outstanding	0.096%
Post-Transaction Ownership	Not specified
Materiality Assessment	Low

Impact Evaluation

• Market Cap Context: The $11.7 million sale is a minor event for a company with a market capitalization of $12.18 billion. The transaction value constitutes less than 0.1% of the company's total market value.
• Ownership Concentration: While the insider is a significant 10% stockholder, this specific sale is a very small fraction of the company's total shares outstanding (0.096%).
• Transaction Significance: The sale is rated as low significance. Both its value relative to market cap and the number of shares relative to the total outstanding fall below the 0.1% threshold for moderate significance.

Market Impact Analysis

Stock Impact Prediction

• Direction: Neutral
• Reasoning: The sale is pre-planned under a 10b5-1 plan, which mitigates concerns about it being based on new, non-public information. Furthermore, the size of the sale is immaterial compared to the company's overall market capitalization and daily trading volume.

Volume & Sentiment

• Expected Volume Impact: Negligible. The number of shares is unlikely to significantly affect trading volume.
• Sentiment Indicator: Neutral. Sales under 10b5-1 plans by founders are common for diversification and liquidity purposes and are generally not viewed as a bearish signal by the market, especially when the size is small.

Additional Context

Transaction Notes

• Special Circumstances: The filing explicitly notes the sale is part of a 10b5-1 trading plan adopted on March 4, 2025. The sale is being conducted by Blue Media, LLC and Gray Media, LLC, for which Mr. Lefkofsky is the sole manager.