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Eric Lefkofsky owns 22.47% of Tempus AI

40,538,283 shares as of the September 22, 2026 filing, worth $2.6B at the latest close.

TEM · $11.7B market cap · Founder-led
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The stake
22.47%
worth $2.6B at the latest close
Stake rank
#46
by dollar value of the stake
Last sale
27 days ago
Sep 22, 2026
Last buy
None
no purchases since 2024

Eric Lefkofsky owns 22.47% of Tempus AI, Inc.: 40,538,283 of 180,434,756 shares, worth about $2.6B at the 2026-10-16 close. The stake has moved from 19.41% in 2024 to 22.47% on 2026-09-22, across 30 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $14.9M on 2026-09-22.

How the stake is held

each class as its filings last stated it
SHARES
OF THE STAKE
CLASS A · stated Sep 22, 2026 · Form 4 ↗
35,494,494
87.6%
HELD DIRECTLY
2,098,130
5.2%
HELD INDIRECTLY · 6 VEHICLES
33,396,364
82.4%
By Blue Media, LLC
14,850,469
36.6%
By Gray Media, LLC
8,545,283
21.1%
By Lefkofsky Family 2025 GRAT
5,715,203
14.1%
By Lefkofsky Family 2026 GRAT
4,284,797
10.6%
By 346 Long LLC
406
0.0%
By Black Media, LLC
206
0.0%
CLASS B · stated Jun 17, 2024 · Form 4 ↗
5,043,789
12.4%
HELD INDIRECTLY · 3 VEHICLES
5,043,789
12.4%
By Blue Media, LLC · last stated Jun 2024
3,972,878
9.8%
By Innovation Group Investors, L.P. - 2011 Series · last stated Jun 2024
892,426
2.2%
By Black Media, LLC · last stated Jun 2024
178,485
0.4%
THE STAKE
40,538,283
22.47%