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Tempus AI Insider Eric Lefkofsky Files Form 144 to Sell $19.5M in Stock

High SignificanceSeptember 22, 2026 at 5:33:09 PM EDT

Tempus AI, Inc.

$TEM144CIK: 0001717115

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Filing Summary

# Form 144 Notice of Proposed Sale: Tempus AI, Inc. (TEM)
**Insider:** Eric Lefkofsky (Officer, Director, 10% Stockholder)
**Date:** 2026-09-22

- **Proposed Sale:** 250,000 shares Class A Common Stock
- **Market Value:** ~$19,507,500.00 (~$78.03/share)
- **Broker:** J.P. Morgan Securities LLC
- **Rule 10b5-1 Plan Adopted:** 2026-03-08
- **Shares Outstanding:** 175,390,967 (~0.14% of outstanding)

Comprehensive Analysis

Executive Summary

On September 22, 2026, Eric Lefkofsky, Director, Officer, and 10% Stockholder of Tempus AI, Inc. (CIK: 0001717115), filed a Form 144 indicating the proposed sale of 250,000 shares of Class A Common Stock through broker J.P. Morgan Securities LLC. The estimated aggregate market value of the proposed transaction is $19,507,500, implying a share price of approximately $78.03.

Transaction & Plan Details

  • Rule 10b5-1 Plan: The proposed sale is executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on March 8, 2026.
  • Origin of Shares: The 250,000 shares to be sold encompass four tranches:
    • 135,000 shares acquired via Stock Compensation from the Issuer on January 22, 2025.
    • 57,500 shares acquired via Direct Investment from the Issuer on September 14, 2017.
    • 7,500 shares acquired via Direct Investment from the Issuer on March 5, 2020.
    • 50,000 shares acquired via Donation on December 4, 2025 (originally acquired by Blue Media LLC on September 24, 2015).
  • Beneficial Entities: Per remarks, sales correspond to affiliated entities where Mr. Lefkofsky is an authorized signatory: Blue Media, LLC (135,000 shares), Gray Media, LLC (57,500 shares), Lefkofsky Family Foundation (7,500 shares), and Vas.org Foundation (50,000 shares).

Market Impact & Historical Selling Pattern

The proposed disposition represents roughly 0.14% of the 175,390,967 Class A Common shares outstanding. The filing indicates a programmatic monthly selling schedule over the past three months (June, July, August, and September 2026) across Blue Media, Gray Media, Lefkofsky Family Foundation, and Vas.org Foundation, with aggregate gross proceeds exceeding $48M during that span under the established 10b5-1 trading plan.

Topics:#TempusAI#TEM#Form144#InsiderSelling#SEC

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