Reporting owner · CIK 0001114357

Lefkofsky Eric P

Visual SEC Form 4 history across 1 companies, 106 transactions and 11 filings.

CHAIRCEO and ChairmanTempus AI, Inc.
Open-market mix
Latest filingAug 28, 2026, 12:28 AM
Filings11Form 4 records
Buying$00 purchases
Selling$385.4M101 sales
Net value−$385.4MBuys minus sells
Companies11 securities
Most recentAug 25, 2026sale

Open-market buy performance

90-day forward return on this insider's open-market purchases

90d forward
Forward return is not available yet

We compute this from each buy's stock performance 90 days after the transaction. The price history is still being populated for this insider's their open-market buys, so the average and median will appear here once the daily price refresh has covered the relevant trading days.

Monthly open-market activity

Reported purchase and sale transaction counts

Buys Sells
35180-18-3521Jan 2527Feb 2516Mar 254May 2633Aug 26

Net value flow

Buys minus sells

Jan 25
−$75.3M
Feb 25
−$237.6M
Mar 25
−$41.1M
May 26
−$7.8M
Aug 26
−$23.7M

Transaction texture

Ownership and ticket size

Average P/S size$3.8M
Median P/S size$1.1M
Direct45
Indirect61
Aug 25, 2026sale

Filing-only signals

Deterministic matches in this insider's history

Cluster Sellingpattern94Direct Ownershipfiling-context45Large Holdings Increaseholdings2Large Holdings Reductionholdings2Large Salesize53Repeat Sellerpattern9810b5-1 Detectedfiling-context52

Latest Form 4 facts

Quick context from source filings

Latest transaction

sale at Tempus AI, Inc. on Aug 25, 2026 valued at $48,065.

Review SEC filing
Latest buy

No open-market insider purchase is available.

Associated companies

Visual map of known reporting history

TEMTempus AI, Inc.106 transactions · latest Aug 28, 2026, 12:28 AM
TickerInsiderRoleTypeSharesValueCodeSignals90d returnFiledTrans date
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-12.88k-$19.9MS
Cluster Selling Repeat Seller 10b5-1 Detected
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-11.36k-$9.29MS
Cluster Selling Repeat Seller 10b5-1 Detected
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-1578-$3.87MS
Cluster Selling Repeat Seller 10b5-1 Detected
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-1515-$3.39MS
Cluster Selling Repeat Seller 10b5-1 Detected
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-1284-$1.83MS
Cluster Selling Repeat Seller 10b5-1 Detected
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-1101-$646kS
Cluster Selling Repeat Seller 10b5-1 Detected
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-11.83k-$12.9MS
Cluster Selling Repeat Seller 10b5-1 Detected
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-130.1k-$210MS
Cluster Selling Large Sale Repeat Seller+1
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-152.7k-$364MS
Cluster Selling Large Sale Repeat Seller+1
—08/2808/25
TEMLEFKOFSKY ERIC P
CHAIR
sale10b5-124.1k-$164MS
Cluster Selling Large Sale Repeat Seller+1
—08/2808/25

Lefkofsky Eric P Insider Activity FAQ

SEC Form 4 context

Who is Lefkofsky Eric P?

Lefkofsky Eric P is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001114357.

Which companies has Lefkofsky Eric P reported transactions for?

Tempus AI, Inc.

When was Lefkofsky Eric P's latest insider buy?

No open-market insider purchase is available for this period.

When was Lefkofsky Eric P's latest insider sale?

sale at Tempus AI, Inc. on Aug 25, 2026 valued at $48,065.

Where can I see the original SEC filings?

Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.

Are performance metrics included?

This version does not calculate win rates, forward returns, benchmark-adjusted returns, or high-conviction scores.