Security key
88023B103
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 105,275,178
- Total 13F value
- $4,747,968,862
- Share change
- +4,299,960
- Put/Call ratio
- 76%
- SEC-reported price per share
- $45.22
- Number of holders
- 424
- Value change
- +$136,928,925
- Number of buys
- 241
- Number of sells
- 205
- Shares outstanding
- 172,987,120
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
424
Top holders
10
TEM full security history
Ownership snapshot
Full 13F holder table
Tempus AI, Inc. SEC filings
Tempus AI, Inc. company facts
Tempus AI, Inc. 13D/G history
Broader feeds
Ownership snapshot
Top reported holders of TEM - Tempus AI, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Eric Paul Lefkofsky
Disclosed value leader
Eric Paul Lefkofsky
Comparable rows
15/15
Latest evidence
19 Feb 2026
13D/G
3/4/5
13F
Lead comparable stake: 24%
13D/G row: Eric Paul Lefkofsky
Showing 1-6 of 15 holder rows.
Quick read
Eric Paul Lefkofsky leads the comparable SEC ownership view at 24%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Eric Paul Lefkofsky's linked filing trail.
Comparable ownership
Top 5
Eric Paul Lefkofsky
24%
Bradley A. Keywell
7.6%
ARK Investment Management LLC
5.4%
BAILLIE GIFFORD & CO
5%
Red Sky Ventures LLC
4.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Eric Paul Lefkofsky |
13D/G
|
24%
|
$2,923,620,275
42,767,997 shares
|
-$143,612,055 | 31 Dec 2025 |
| Bradley A. Keywell |
3/4/5
13D/G
10%+ Owner
|
7.6%
from 13D/G
|
$544,732,244
15,218,365 shares
|
— | 15 Jan 2025 |
| ARK Investment Management LLC |
13F
13D/G
Company
|
5.4%
from 13D/G
|
$508,992,782
15,436,670 shares
mixed-class rows
|
— | 31 Dec 2025 |
| BAILLIE GIFFORD & CO |
13F
13D/G
Company
|
5%
from 13D/G
|
$516,182,150
8,741,442 shares
|
— | 31 Dec 2025 |
| Red Sky Ventures LLC |
3/4/5
13D/G
10%+ Owner
|
4.7%
from 13D/G
|
$595,367,647
14,610,249 shares
|
— | 11 Dec 2024 |
| Erik Phelps |
3/4/5
EVP, Chief Admin. Officer
|
0.05%
|
$4,713,134
79,816 shares
|
-$1,155,332 | 19 Feb 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
424
Shares
105,275,178
Rows available
424
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
424
Q1 2026 holders
424
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|