SEC EDGARSEP 191 min read$TEM

LEFKOFSKY ERIC P sold $16.1M of TEM (indirect holdings)

LEFKOFSKY ERIC P (CEO and Chairman) sold 200,000 indirectly-held shares of Tempus AI, Inc. (TEM) at an average of $80.57 ($80.52–$81.09, $16.11M total) across 6 trades on 2026-09-17 under a Rule 10b5-1 trading plan.

Original reporting

SEC EDGAR · LEFKOFSKY ERIC P

Published Sep 19, 2026, 1:15 AM UTC

Analysis

AlphAI AI DeskAI-generated

Added to AlphAI Sep 19, 2026, 1:35 AM UTC. Informational, not investment advice.

How this was made

AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.

About AlphAI AI Desk Scoring methodology Report an issue

AlphAI market briefInsider activity

Primary signal

$TEM

Bearish

medium confidence

Mentioned

$TEM

Relevance

6/10

AlphAI data visualization · based on SEC EDGAR

Decision brief

The 30-second read

$TEMBearishLow

Why it matters

The disclosed sale may trigger short‑term selling pressure but likely has limited long‑term effect.

Market read

Insider sell of $16M is a notable event for traders monitoring Tempus AI and the broader health‑tech sector.

What to watch

The 10b5‑1 plan may have been set months ago; the sale does not reflect current sentiment.

Relevance 6/10Novelty 7/10Timing: post‑market filing on Sep 18 2026

Background

Form 4 filings disclose insider transactions; a 10b5‑1 plan allows pre‑scheduled sales.

Company-level read

Ticker impact

AI estimates · verify against primary disclosures

$TEMBearishMedium confidence

Context

CEO Eric Lefkofsky sold 200,000 shares for $16.1M via a 10b5-1 plan, reducing his stake to 809,631 shares.

Expected impact

Modest short‑term decline as the market digests the $16M sell‑off.

Evidence & confidence

A $16M sale by the CEO is sizable for a mid‑cap biotech, indicating possible concerns about valuation or upcoming developments.

Market effects

Sector

Healthcare AI sector may see heightened scrutiny after a top executive's sizable sell‑off.

Regional

Limited to U.S. investors; no broader regional effect.

Global

Minimal global impact beyond Tempus AI shareholders.

Counterpoint

What could challenge this read

The sale could be a routine liquidity event under a pre‑arranged plan, not a signal of trouble.

Key entities

Company
Tempus AI, Inc.
AI‑driven healthcare data platform listed on Nasdaq under ticker TEM.
Executive
Eric Lefkofsky
CEO and Chairman of Tempus AI, 10% owner.

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