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

Executive Summary

• Trading Significance: Low
• Key Takeaway: A key insider, Eric Lefkofsky, has filed a notice of intent to sell $10.7 million worth of Class A Common Stock via entities he controls.
• Market Impact: The transaction is not material, representing less than 0.1% of the company's market capitalization and shares outstanding.

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	Director, Officer, 10% Stockholder

Transaction Details

Field	Value
Form Type	144
Transaction Date	2025-12-18 (Approximate Sale Date)
Transaction Code	S (Proposed Sale)
Security Type	Class A Common Stock
Shares Involved	166,250
Price Per Share	~$64.61 (calculated)
Total Value	$10,741,413
Shares Owned After	Not specified
Ownership Type	Indirect

Financial Impact Assessment

Transaction Materiality

Metric	Value
Transaction Value	$10,741,413
% of Market Cap	0.088%
Shares Transacted	166,250
% of Shares Outstanding	0.096%
Shares Outstanding (per filing)	172,863,470
Materiality Assessment	Low

Impact Evaluation

• Market Cap Context: For a large-cap company with a market capitalization of $12.18 billion, a $10.7 million sale is considered routine and not financially significant.
• Ownership Concentration: While the insider is a 10% stockholder, this specific sale is a very small portion of the total shares outstanding.
• Transaction Significance: The sale represents a negligible percentage of both market capitalization (0.088%) and public float (0.096%), categorizing its direct impact as low. The primary relevance is its continuation of a pattern of sales by the insider.

Market Impact Analysis

Stock Impact Prediction

• Direction: Neutral
• Reasoning: The transaction is a Form 144 filing (notice of intent), not a completed sale. The size is immaterial relative to the company's market cap and daily trading volume. The sale is also part of a pre-disclosed 10b5-1 trading plan, which reduces its signaling effect.

Volume & Sentiment

• Expected Volume Impact: Minimal. The number of shares is unlikely to significantly impact trading volume.
• Sentiment Indicator: Neutral. Pre-planned sales by founders for portfolio diversification are common and typically do not negatively affect market sentiment, especially when the sale size is small relative to the company's valuation.

Additional Context

Transaction Notes

• Special Circumstances: The filing indicates the sales are pursuant to a 10b5-1 trading plan adopted on March 4, 2025. The sale is being conducted by Blue Media, LLC (133,000 shares) and Gray Media, LLC (33,250 shares), for which Mr. Lefkofsky is the sole manager.
• Recent History: The filing discloses that entities controlled by the insider have sold over $70 million worth of stock in the preceding three months, indicating a consistent pattern of liquidation under the trading plan.