Monitor for actual execution of the sale on Form 4 filings; a completed sale by the CEO at this scale could weigh on sentiment given the recent insider selling pattern. Watch for any concurrent positive catalysts (earnings, guidance) that might offset the signal.
Price Chart
Executive Summary
Eric Lefkofsky, co-founder, CEO, and Chairman of Tempus AI, filed a Form 144 to sell 250,000 Class A common shares through J.P. Morgan Securities, with an estimated aggregate market value of ~$16.5M based on the filing date. The shares to be sold are held by entities he controls (Blue Media, Gray Media, Lefkofsky Family Foundation, Vas.org Foundation) and were acquired via stock compensation, direct investment, and donation. This is a material insider sale by the top executive, representing ~0.14% of shares outstanding, and comes amid a 30-day period with $5.0M in other insider sales, signaling potential near-term selling pressure.
Key Facts
- Eric Lefkofsky (CEO/Chairman) filed to sell 250,000 Class A shares via Form 144.
- Estimated aggregate market value of the proposed sale is ~$16.5M based on filing date price.
- Shares are held by entities Lefkofsky controls: Blue Media (135K), Gray Media (57.5K), Lefkofsky Family Foundation (7.5K), Vas.org Foundation (50K).
- The filing follows $5.0M in other insider sales over the prior 30 days.
- Lefkofsky's total beneficial ownership post-sale would remain substantial at ~173.4M shares.
Financial Impact
Proposed sale of 250,000 shares valued at ~$16.5M, representing ~0.14% of total shares outstanding.
Risk Factors
- Form 144 is an intent to sell; the sale may not be executed.
- CEO selling could be misinterpreted as lack of confidence even if for personal diversification.
- Large insider sales ahead of earnings or material events could signal adverse information.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001968582-26-000880 |
| Document: 0001968582-26-000880-index.html | 0001968582-26-000880 |
| Document: 0001968582-26-000880.txt | 0001968582-26-000880 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 3, 2026 28d ago | Insider Cluster | $64.62 $62.21 | ▼ −3.73% | ▼ −2.52% | $76.41 (+18.25%) |
Sep 3, 2026 28d ago | Insider Cluster | $64.62 $62.21 | ▼ −3.73% | ▼ −2.52% | $76.41 (+18.25%) |
Sep 1, 2026 4w ago | Insider Cluster | $62.27 $61.28 | ▼ −1.59% | ▼ −1.67% | $76.41 (+22.71%) |
Aug 28, 2026 5w ago | Insider Cluster | $64.04 $64.62 | ▼ −0.91% | ▼ −0.80% | $76.41 (−19.32%) |
Aug 25, 2026 5w ago | 144 | $68.48 $61.94 | ▲ +9.55% | ▲ +9.43% | $76.41 (−11.58%) |
Aug 25, 2026 5w ago | Insider Cluster | $68.73 $62.27 | ▼ −9.40% | ▼ −8.86% | $76.41 (+11.17%) |
Aug 21, 2026 6w ago | Insider Cluster | $72.69 $64.04 | ▲ +11.90% | ▲ +12.37% | $76.41 (−5.12%) |
Aug 19, 2026 6w ago | 144 | $66.65 $70.69 | ▲ +6.06% | ▲ +4.95% | $76.41 (+14.64%) |
Aug 18, 2026 6w ago | Insider Cluster | $49.36 $68.73 | ▼ −39.24% | ▼ −39.44% | $76.41 (−54.80%) |
Aug 11, 2026 7w ago | Insider Cluster | $55.69 $49.36 | ▼ −11.37% | ▼ −10.96% | $76.41 (+37.21%) |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Try SecBot Free Coming soon: SecBot Pro with alerts, watchlists, and API access