LEFKOFSKY ERIC P sold $4.6M of TEM (indirect holdings)
LEFKOFSKY ERIC P (CEO and Chairman) sold 97,279 indirectly-held shares of Tempus AI, Inc. (TEM) at $46.89 ($4.56M total) on 2026-05-27 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The disclosure may influence short-term sentiment and technical positioning, but the presence of a 10b5-1 plan generally lowers the probability that the sale reflects new negative information.
Market read
A $4.56M insider sale is disclosed; traders may watch for any follow-through in sentiment/volume, but the 10b5-1 plan reduces fundamental read-through.
What to watch
Consider whether the insider’s remaining stake size or prior sale cadence indicates a pattern; this brief only provides one transaction datapoint.
Background
This is an SEC Form 4 insider transaction disclosure for Tempus AI, Inc. (TEM).
Ticker impact
Tempus AI CEO/Chairman and 10% owner LEFKOFSKY sold $4.56M of TEM shares in an open-market transaction under a 10b5-1 plan.
Low-to-moderate near-term downside pressure possible, but not a strong directional catalyst.
The filing is a disclosed insider sale (not a buy) with a stated 10b5-1 pre-arranged plan, which typically reduces interpretive weight versus discretionary selling.
Market effects
Minimal; single-company insider transaction without sector-wide catalyst.
Minimal; US-listed micro/SMID cap flow only.
Minimal; no cross-border deal/regulatory element.
Counterpoint
Because the sale was executed under a pre-arranged 10b5-1 plan, it may be routine liquidity rather than a bearish signal.
Key entities
- issuerTempus AI, Inc.
Subject of the insider sale disclosure; CEO/Chairman/10% owner sold shares under a 10b5-1 plan.
- insiderLEFKOFSKY ERIC P
CEO and Chairman; executed an open-market sale of 97,279 TEM shares at $46.8900.



