Tempus AI, Inc. (TEM) Ownership
TEM ownership summary
as of October 18, 2026- Institutions
- 59.8% of shares outstanding
- Insiders
- 36.77% of shares outstanding
- Shares outstanding
- 175.4M
- Float
- 116.3M shares available to trade
- Short interest
- 24.87% 25.1M shares short
- Days to cover
- 3.69 short interest down 10.5% vs prior month
- Institutions 59.79%
- Insiders 36.77%
- Other investors 3.44%
TEM top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | ARK Investment Management LLC | 5.52% | 10.0M | $648.7M | +414,889 (+4.3%) | June 30, 2026 |
| 2 | BlackRock Inc | 4.57% | 8.3M | $536.6M | −677,277 (−7.6%) | June 30, 2026 |
| 3 | Baillie Gifford & Co Limited. | 4.51% | 8.2M | $530.1M | −459,223 (−5.3%) | June 30, 2026 |
| 4 | SoftBank Group Corp | 2.98% | 5.4M | $349.8M | — | June 30, 2026 |
| 5 | JPMorgan Chase & Co | 2.75% | 5.0M | $322.9M | +55,869 (+1.1%) | June 30, 2026 |
| 6 | Vanguard Capital Management, LLC | 2.75% | 5.0M | $322.8M | +69,916 (+1.4%) | June 30, 2026 |
| 7 | Vanguard Portfolio Management, LLC | 2.71% | 4.9M | $318.1M | +235,353 (+5.0%) | June 30, 2026 |
| 8 | Amova Asset Management Americas, Inc | 2.25% | 4.1M | $264.6M | −237,284 (−5.5%) | June 30, 2026 |
| 9 | Sumitomo Mitsui Trust Group Inc | 2.25% | 4.1M | $264.6M | −237,284 (−5.5%) | June 30, 2026 |
| 10 | The Goldman Sachs Group Inc | 2.07% | 3.8M | $243.5M | +2.5M (+194.4%) | June 30, 2026 |
| 11 | Morgan Stanley - Brokerage Accounts | 2.01% | 3.7M | $236.4M | +1.6M (+75.3%) | June 30, 2026 |
| 12 | Franklin Templeton Inc | 1.85% | 3.4M | $217.0M | +771,124 (+29.9%) | June 30, 2026 |
| 13 | UBS Group AG | 1.40% | 2.5M | $164.8M | −687,753 (−21.3%) | June 30, 2026 |
| 14 | Citadel Advisors Llc | 1.38% | 2.5M | $162.6M | +1.9M (+317.8%) | June 30, 2026 |
| 15 | Catalytic Wealth RIA LLC | 1.33% | 2.4M | $156.1M | −4.2M (−63.5%) | June 30, 2026 |
| 16 | Geode Capital Management, LLC | 1.15% | 2.1M | $135.4M | +152,312 (+7.9%) | June 30, 2026 |
| 17 | Bank of America Corp | 1.06% | 1.9M | $124.1M | +1.5M (+362.4%) | June 30, 2026 |
| 18 | State Street Corp | 1.04% | 1.9M | $122.2M | +197,838 (+11.7%) | June 30, 2026 |
| 19 | Alphabet Inc | 0.85% | 1.6M | $100.4M | — | June 30, 2026 |
| 20 | Jane Street Group LLC | 0.79% | 1.4M | $92.5M | +759,993 (+113.6%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 10.1M shares and 6 cut 6.5M.
TEM top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | ARK Innovation ETF | 3.15% | 5.7M | $369.6M | −584,907 (−9.3%) | September 30, 2026 |
| 2 | Scottish Mortgage Ord | 2.31% | 4.2M | $271.3M | — | July 31, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 1.99% | 3.6M | $233.6M | −4,885 (−0.1%) | August 31, 2026 |
| 4 | Vanguard Small Cap Index | 1.44% | 2.6M | $168.9M | +2,652 (+0.1%) | August 31, 2026 |
| 5 | ARK Genomic Revolution ETF | 1.33% | 2.4M | $156.7M | +5,920 (+0.2%) | September 30, 2026 |
| 6 | Franklin Technology A Acc USD | 1.26% | 2.3M | $147.7M | — | August 31, 2026 |
| 7 | Vanguard US Growth Investor | 1.21% | 2.2M | $142.7M | — | June 30, 2026 |
| 8 | Amova ARK Disruptive Innovation A USD | 1.18% | 2.1M | $138.6M | −149,515 (−6.5%) | August 31, 2026 |
| 9 | JPM US Technology A dist USD | 0.91% | 1.7M | $107.5M | +97,426 (+6.2%) | August 31, 2026 |
| 10 | Vanguard MStar Small Cap Growth Indx Inv | 0.83% | 1.5M | $97.0M | −11,805 (−0.8%) | August 31, 2026 |
| 11 | Amova ARK Pstv Chg Innovt P JPY Acc | 0.81% | 1.5M | $95.5M | −69,831 (−4.5%) | August 31, 2026 |
| 12 | iShares Biotechnology ETF | 0.46% | 840K | $54.4M | −6,360 (−0.8%) | September 30, 2026 |
| 13 | JPMorgan U.S. Tech Leaders ETF | 0.40% | 727K | $47.1M | — | September 30, 2026 |
| 14 | L&G Artificial Intelligence ETF | 0.37% | 674K | $43.6M | −1,665 (−0.2%) | September 30, 2026 |
| 15 | Baillie Gifford American B Inc | 0.36% | 658K | $42.6M | +2,971 (+0.5%) | August 31, 2026 |
| 16 | iShares Russell Mid-Cap Growth ETF | 0.33% | 605K | $39.2M | −648 (−0.1%) | September 30, 2026 |
| 17 | Baron Discovery Institutional | 0.33% | 604K | $39.1M | −35,900 (−5.6%) | September 30, 2026 |
| 18 | Schiehallion Fund Ord | 0.30% | 545K | $35.3M | — | July 31, 2026 |
| 19 | Contrarius Global Equity Institutional | 0.28% | 516K | $33.4M | +516,182 (0.0%) | June 30, 2026 |
| 20 | Fidelity Extended Market Index | 0.28% | 508K | $32.9M | −4,690 (−0.9%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
TEM insider transactions
latest 20| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-26 | Eric P Lefkofsky | Sell | $46.38 | 166,250 | $7.7M |
| 2026-02-20 | Andrew Polovin | Sell | $60.31 | 10,949 | $660,334 |
| 2026-02-19 | Andrew Polovin | Sell | $59.05 | 8,143 | $480,844 |
| 2026-02-19 | Eric P Lefkofsky | Sell | $59.05 | 13,587 | $802,312 |
| 2026-02-19 | Eric P Lefkofsky | Sell | $58.87 | 166,250 | $9.8M |
| 2026-02-19 | Erik Phelps | Sell | $59.43 | 9,464 | $562,446 |
| 2026-02-19 | James William Rogers | Sell | $59.05 | 10,084 | $595,460 |
| 2026-02-19 | Ryan Fukushima | Sell | $59.05 | 9,592 | $566,408 |
| 2026-02-19 | Ryan M Bartolucci | Sell | $59.05 | 2,902 | $171,363 |
| 2026-02-02 | David R Epstein | Sell | $59.41 | 370 | $21,982 |
| 2026-01-28 | Eric P Lefkofsky | Sell | $65.56 | 166,250 | $10.9M |
| 2026-01-16 | Nancy Pelosi | Buy | $70.33 | — | — |
| 2026-01-05 | Ryan Fukushima | Sell | $64.26 | 5,000 | $321,300 |
| 2025-12-18 | Eric P Lefkofsky | Sell | $63.99 | 166,250 | $10.6M |
| 2025-12-16 | Erik Phelps | Sell | $67.42 | 1,302 | $87,781 |
| 2025-12-11 | James William Rogers | Sell | $73.20 | 19,966 | $1.5M |
| 2025-12-01 | Jennifer A Doudna | Sell | $75.55 | 676 | $51,072 |
| 2025-12-01 | Ryan Fukushima | Sell | $75.72 | 5,000 | $378,600 |
| 2025-12-01 | David R Epstein | Sell | $75.55 | 250 | $18,888 |
| 2025-11-24 | Eric P Lefkofsky | Sell | $74.10 | 166,250 | $12.3M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
TEM shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns TEM
Institutional investors own 59.8% of Tempus AI's shares and insiders 36.77%. The largest holder is ARK Investment Management LLC with 5.52% of the shares (10.0M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 6 reduced their stake in the latest filings. Short interest is 24.87% of the float, or 3.69 days of average trading volume. The share count rose 177.3% since 2020.
Related: TEM analyst forecast, TEM key metrics. See the TEM stock overview for the latest quote and news.
TEM ownership FAQ
Who owns the most Tempus AI stock?
The largest shareholders of Tempus AI are ARK Investment Management LLC (5.52%), BlackRock Inc (4.57%), Baillie Gifford & Co Limited. (4.51%), SoftBank Group Corp (2.98%), JPMorgan Chase & Co (2.75%).
What percentage of Tempus AI is owned by institutions?
Institutions hold 59.8% of Tempus AI's shares outstanding; insiders hold 36.77%.
Which funds own Tempus AI?
The largest fund holders of Tempus AI are ARK Innovation ETF (3.15%), Scottish Mortgage Ord (2.31%), Vanguard MStar Total Stk Mkt Idx Invest (1.99%), Vanguard Small Cap Index (1.44%), ARK Genomic Revolution ETF (1.33%).
What is Tempus AI's short interest?
25.1M shares of Tempus AI were sold short, 24.87% of the float; at the average daily volume it would take 3.69 days to cover.
Are insiders buying or selling Tempus AI?
Of the latest 20 reported insider transactions in Tempus AI (since November 24, 2025), 1 were purchases and 19 were sales.
How many shares of Tempus AI are outstanding?
Tempus AI has 175.4M shares outstanding, of which 116.3M are in the public float.