Tempus AI Inc. Class ATEM
13F holders, Q1 2026 (March 31)427holders −30
75new positions
100sold out
7famous investors
$45.10avg. 13F price*
At the end of Q1 2026, 427 institutions reported holding Tempus AI Inc. Class A (TEM) in their 13F filings, down 30 from Q4 2025. 75 opened new positions and 100 sold out. The largest holders were ARK Investment Management ($434.5M), BlackRock, Inc. ($405.5M) and Baillie Gifford & Co. ($391.1M). 7 famous investors held it, including Cathie Wood (3.4% of ARK Investment Management's portfolio), Ron Baron (0.1% of Baron Capital (BAMCO)'s portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Tempus AI Inc. Class A
- CUSIP
- 88023B103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 75 | $105.8M |
| Exits | 100 | $179.1M |
All 13F filers, Q4 2025 → Q1 2026: 15,644,147 shares bought and 10,286,910 shares sold, net +5,357,237 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 427 holders
| ARK Investment Management | 3.38% | Add +27.1% | 9,607,745 | $434.5M |
| BlackRock, Inc. | 0.01% | Add +19.3% | 8,968,330 | $405.5M |
| Baillie Gifford & Co. | 0.40% | Reduce -1.1% | 8,649,356 | $391.1M |
| GC Wealth Management RIA, LLC | 12.37% | Reduce -2.2% | 6,611,211 | $299.0M |
| Softbank Group Corp. | 2.14% | No change | 5,405,406 | $244.4M |
| Vanguard Capital Management LLC | 0.01% | — | 4,918,122 | $222.4M |
| Vanguard Portfolio Management LLC | 0.01% | — | 4,679,057 | $211.6M |
| JPMorgan Chase & Co. | 0.01% | Add +0.5% | 4,933,193 | $209.0M |
| Sumitomo Mitsui Trust Group, Inc. | 0.13% | Add +23.4% | 4,326,313 | $195.6M |
| Amova Asset Management Americas, Inc. | 2.77% | Add +23.4% | 4,326,313 | $195.5M |
| UBS Group AG | 0.03% | Add +118.0% | 3,234,387 | $146.3M |
| Franklin Resources Inc. | 0.03% | Add +38.7% | 2,581,644 | $116.7M |
| Morgan Stanley | 0.01% | Add +0.0% | 2,083,435 | $94.2M |
| Geode Capital Management, LLC | 0.01% | Add +3.7% | 1,940,207 | $87.8M |
| State Street Corp. | 0.00% | Add +4.5% | 1,689,761 | $76.4M |
| Alphabet Inc. | 1.75% | No change | 1,551,102 | $70.1M |
| Lingotto Investment Management LLP | 1.27% | Add +23.8% | 1,415,766 | $64.0M |
| Goldman Sachs Group Inc. | 0.01% | Add +75.9% | 1,277,756 | $57.8M |
| Voloridge Investment Management, LLC | 0.21% | Reduce -25.4% | 1,173,402 | $53.1M |
| Clear Street Group Inc. | 0.24% | Add +32.1% | 955,582 | $43.2M |
| Baron Capital (BAMCO) | 0.12% | Add +153.0% | 899,278 | $40.7M |
| Marex Group Ltd | 0.39% | Add +20.8% | 821,327 | $37.1M |
| Two Sigma Investments, LP | 0.03% | Reduce -49.8% | 799,398 | $36.1M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +5.0% | 780,392 | $35.3M |
| Legal & General Group Plc | 0.01% | Add +38.2% | 771,374 | $34.9M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.01% | Add +33.3% | 762,101 | $34.5M |
| Canada Pension Plan Investment Board | 0.02% | Add +11229.7% | 725,100 | $32.8M |
| Barclays PLC | 0.01% | Add +359.5% | 669,675 | $30.3M |
| Jane Street Group, LLC | 0.03% | Add +197.6% | 668,854 | $30.2M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 654,299 | $29.6M |
| Citadel Advisors | 0.02% | Reduce -33.4% | 601,305 | $27.2M |
| Wellington Management Group LLP | 0.00% | Add +18.8% | 513,989 | $23.2M |
| Northern Trust Corp. | 0.00% | Add +4.4% | 500,451 | $22.6M |
| Marshall Wace, LLP | 0.02% | Reduce -32.8% | 496,508 | $22.5M |
| Ilex Capital Partners (UK) LLP | 0.51% | New | 454,217 | $20.5M |
| Patient Capital Management, LLC | 0.75% | Add +15.7% | 442,199 | $20.0M |
| Bank of America Corp. | 0.00% | Reduce -63.6% | 414,780 | $18.8M |
| Invesco Ltd. | 0.00% | Add +4.8% | 389,673 | $17.6M |
| Gilder Gagnon Howe & Co. LLC | 0.21% | Reduce -33.3% | 384,548 | $17.4M |
| Trexquant Investment LP | 0.12% | Reduce -26.0% | 375,991 | $17.0M |
| Freestone Grove Partners LP | 0.12% | New | 375,937 | $17.0M |
| KADENSA CAPITAL Ltd | 2.33% | Add +1.6% | 370,886 | $16.8M |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 1.16% | Add +27.3% | 336,523 | $15.2M |
| Wells Fargo & Company | 0.00% | Add +4.7% | 328,191 | $14.8M |
| SG Americas Securities, LLC | 0.02% | Reduce -12.9% | 324,077 | $14.7M |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.5% | 299,220 | $13.5M |
| PEAK6 LLC | 0.39% | Add +127.3% | 294,726 | $13.3M |
| Casdin Capital, LLC | 1.01% | No change | 294,127 | $13.3M |
| Nuveen, LLC | 0.00% | Add +17.9% | 292,780 | $13.2M |
| First Trust Advisors LP | 0.01% | Reduce -44.3% | 290,188 | $13.1M |
| Mitsubishi UFJ Trust & Banking Corp | 0.03% | New | 260,148 | $11.8M |
| Cwm, LLC | 0.03% | Add +33.8% | 259,765 | $11.7M |
| Eagle Health Investments LP | 2.43% | New | 256,269 | $11.6M |
| Susquehanna International Group, LLP | 0.01% | Reduce -71.5% | 244,588 | $11.1M |
| LPL Financial LLC | 0.00% | Reduce -1.5% | 237,926 | $10.8M |
| Capital Fund Management S.A. | 0.09% | Reduce -43.0% | 220,261 | $10.0M |
| Vestmark Advisory Solutions, Inc. | 0.09% | Add +19.6% | 189,205 | $8.6M |
| Swiss National Bank | 0.00% | Add +0.3% | 183,500 | $8.3M |
| Captrust Financial Advisors | 0.01% | Add +3.6% | 175,065 | $7.9M |
| Raymond James Financial Inc. | 0.00% | Add +41.5% | 166,126 | $7.5M |
| Ares Management LLC | 0.49% | No change | 164,383 | $7.4M |
| Blue Water Life Science Advisors, LP | 5.67% | Add +81.0% | 156,412 | $7.1M |
| Aberdeen Group plc | 0.01% | Reduce -41.7% | 153,418 | $6.9M |
| Exchange Traded Concepts, LLC | 0.05% | Add +33.0% | 141,044 | $6.4M |
| Aristotle Atlantic Partners, LLC | 0.29% | New | 136,636 | $6.2M |
| Walleye Trading LLC | 0.13% | Add +10.1% | 135,273 | $6.1M |
| Teachers Retirement System of the State of Kentucky | 0.04% | Add +3.4% | 125,647 | $5.7M |
| Citigroup Inc. | 0.00% | Add +156.1% | 122,190 | $5.5M |
| Massachusetts Financial Services Co. | 0.00% | Reduce -69.2% | 118,432 | $5.4M |
| Kohlberg Kravis Roberts & Co. L.P. | 0.10% | No change | 117,652 | $5.3M |
| BNP Paribas Financial Markets | 0.00% | Reduce -36.7% | 109,561 | $5.0M |
| California State Teachers Retirement System | 0.01% | Add +23.1% | 107,686 | $4.9M |
| Rhumbline Advisers | 0.00% | Add +7.7% | 107,042 | $4.8M |
| Diversify Wealth Management, LLC | 0.09% | Add +86.2% | 95,877 | $4.8M |
| Vontobel Holding Ltd. | 0.02% | New | 100,499 | $4.5M |
| Mirae Asset Global Investments Co., Ltd. | 0.01% | Reduce -5.2% | 99,888 | $4.5M |
| Summit Financial, LLC | 0.05% | Add +4.3% | 94,555 | $4.3M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -58.0% | 91,467 | $4.1M |
| DLD Asset Management, LP | 1.23% | Reduce -0.2% | 90,100 | $4.1M |
| Bank Julius Baer & Co. Ltd, Zurich | 0.01% | New | 93,625 | $4.0M |
| Blair William & Co. | 0.01% | Add +8.8% | 88,321 | $4.0M |
| Toronto Dominion Bank | 0.01% | Add +37.8% | 87,464 | $4.0M |
| D. E. Shaw & Co. | 0.00% | Reduce -92.8% | 85,189 | $3.9M |
| Walleye Capital LLC | 0.03% | Reduce -50.6% | 84,322 | $3.8M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 82,792 | $3.7M |
| Van Eck Associates Corp. | 0.00% | Add +19.2% | 82,771 | $3.7M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.01% | Add +177.5% | 81,493 | $3.7M |
| State Board of Administration of Florida Retirement System | 0.01% | Add +8.6% | 80,436 | $3.6M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | No change | 80,000 | $3.6M |
| Allen Operations LLC | 0.52% | No change | 76,621 | $3.5M |
| Baker Avenue Asset Management, LP | 0.08% | Add +89.3% | 75,891 | $3.4M |
| Envestnet Asset Management Inc. | 0.00% | Add +65.5% | 75,125 | $3.4M |
| IMC-Chicago, LLC | 0.05% | New | 75,102 | $3.4M |
| Janney Montgomery Scott LLC | 0.01% | Add +256.2% | 65,043 | $2.9M |
| Brevan Howard Capital Management LP | 0.03% | Add +21.7% | 60,998 | $2.8M |
| Washington Trust Advisors, Inc. | 0.22% | New | 59,819 | $2.7M |
| Titleist Asset Management, LLC | 0.20% | Reduce -15.6% | 59,595 | $2.7M |
| Renaissance Capital LLC | 1.90% | Reduce -22.3% | 47,175 | $2.6M |
| Pictet Asset Management Holding SA | 0.00% | Add +24.7% | 60,468 | $2.6M |
| State of Wisconsin Investment Board | 0.01% | Reduce -1.4% | 57,114 | $2.6M |
"% of holder's portfolio" is TEM's weight in each manager's 13F, not the share of Tempus AI Inc. Class A the manager owns.