TEM · NASDAQ · Medical - Healthcare Information Services

Tempus AI

Links clinical testing, multimodal data, and AI applications across precision medicine.

$63.44
After-hours close−0.57 (−0.89%)
At close$64.01(−9.45%)

Breakdown13F · Form 4

Institutions 67.54%118.34M sharesInsiders 2.11%3.69M sharesOther 30.35%53.17M shares

Shares outstanding 175.20M · Float 106.50M · 60.8% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
Eric Paul Lefkofsky42.77M24.00%13GFeb 10, 2026
Bradley A. Keywell12.85M7.60%13GMay 15, 2025
Ark Investment Management LLC10.02M5.72%13FAug 14, 2026
BlackRock, Inc.8.29M4.73%13FAug 7, 2026
Baillie Gifford & Co8.19M4.67%13FAug 6, 2026

Institutions13F, as of Jun 30, 2026

541 holders · 118.34M shares · 126 new positions · 291 increased · 131 reduced · 59 closed

HolderShares% outstandingChg q/qFiled
Ark Investment Management LLC10.02M5.72%+414.9KAug 14, 2026
BlackRock, Inc.8.29M4.73%−677.3KAug 7, 2026
Baillie Gifford & Co8.19M4.67%−459.2KAug 6, 2026
SoftBank Group Corp.5.41M3.09%0Aug 14, 2026
JPMorgan Chase & Co4.99M2.85%+55.9KAug 12, 2026
Vanguard Capital Management LLC4.99M2.85%+69.9KAug 13, 2026
Vanguard Portfolio Management LLC4.91M2.81%+235.4KAug 13, 2026
Sumitomo Mitsui Trust Group, Inc.4.09M2.33%−237.3KJul 30, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Eric Paul Lefkofsky24.00%42.77M13GFeb 10, 2026
Bradley A. Keywell7.60%12.85M13GMay 15, 2025
ARK Investment Management LLC5.44%9.45M13GMar 6, 2026
Baillie Gifford & Co5.00%8.65M13GMay 7, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
Eric P. Lefkofskydirector, 10 percent owner, officer: CEO and Chairman2.25M1.28%Aug 27, 2026
Ryan Fukushimaofficer: CEO, Data609.9K0.35%Aug 25, 2026
Andrew Polovinofficer: EVP, Chief Legal Officer138.1K0.08%Aug 20, 2026
Peter J. Barrisdirector121.4K0.07%May 26, 2026
James William Rogersofficer: Chief Financial Officer106.0K0.06%Aug 20, 2026
Thomas Edward Schoenherrofficer: CEO, Diagnostics87.0K0.05%Aug 25, 2026
Theodore Leonsisdirector80.3K0.05%Aug 28, 2025
Erik Phelpsofficer: EVP, Chief Admin. Officer79.8K0.05%Feb 20, 2026
Ryan M. Bartolucciofficer: Chief Accounting Officer67.9K0.04%Aug 20, 2026
Nadja Westdirector35.0K0.02%Aug 18, 2026

2 ten-percent owners hold 46.39M shares by Form 4, outside the officers-and-directors figure above · 2 people have not refiled in the last 18 months (753.2K shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Aug 25, 2026
Eric P. Lefkofskydirector, 10 percent owner, officer: CEO and Chairman
Sale · 32 lots250,000$68.46150,000
Aug 21, 2026
Ryan Fukushimaofficer: CEO, Data
Sale14,286$70.0047,420
Aug 21, 2026
Thomas Edward Schoenherrofficer: CEO, Diagnostics
Sale2,694$70.0087,021
Aug 18, 2026
Ryan M. Bartolucciofficer: Chief Accounting Officer
Sale6,175$49.6167,866
Aug 19, 2026
Andrew Polovinofficer: EVP, Chief Legal Officer
Sale7,927$56.00138,140
Aug 18, 2026
Andrew Polovinofficer: EVP, Chief Legal Officer
Sale22,148$49.61146,067
Aug 19, 2026
James William Rogersofficer: Chief Financial Officer
Sale26,313$60.00106,024
Aug 18, 2026
James William Rogersofficer: Chief Financial Officer
Sale22,529$49.61132,337
Aug 19, 2026
Thomas Edward Schoenherrofficer: CEO, Diagnostics
Sale · 6 lots8,082$58.4089,715
Aug 18, 2026
Thomas Edward Schoenherrofficer: CEO, Diagnostics
Sale9,232$49.6197,797

CongressHouse and Senate disclosures

Not reported.