LEFKOFSKY ERIC P sold $1.1M of TEM (indirect holdings)
LEFKOFSKY ERIC P (CEO and Chairman) sold 24,318 indirectly-held shares of Tempus AI, Inc. (TEM) at $46.89 ($1.14M total) on 2026-05-27 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
Open-market insider sales can pressure sentiment, but 10b5-1 pre-arranged plans typically limit the inference traders draw about near-term fundamentals.
Market read
Traders may monitor for follow-on insider activity, but this specific disclosure is unlikely to be a standalone catalyst.
What to watch
The filing does not provide context on total insider selling cadence, whether other insiders sold/bought, or whether the sale size is large relative to holdings beyond the post-transaction balance.
Background
The article is an SEC Form 4 insider transaction disclosure for Tempus AI, Inc.
Ticker impact
Tempus AI CEO/Chairman and 10% owner LEFKOFSKY Eric P sold $1.14M of TEM shares via an open-market transaction under a 10b5-1 plan.
Low probability of a sustained price move; any reaction is likely short-lived unless accompanied by other catalysts.
The filing is a routine insider transaction and explicitly states a pre-arranged Rule 10b5-1 plan, which typically reduces interpretive weight versus discretionary selling.
Market effects
Minimal; this is company-specific insider activity with no stated sector-wide catalyst.
None indicated.
None indicated.
Counterpoint
Because the sale is under a 10b5-1 plan, it may reflect scheduled liquidity needs rather than bearish fundamentals.
Key entities
- issuerTempus AI, Inc.
Subject of the Form 4 insider sale; CEO/Chairman and 10% owner sold shares under a 10b5-1 plan.
- insiderLEFKOFSKY ERIC P
CEO and Chairman; executed an open-market sale of 24,318 shares at $46.8900.



