Who owns Tempus AI (TEM)
Which tracked institutional funds hold TEM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TEM company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on TEM is one-sided between 2026-Q1 and 2026-Q2: 177 added or opened and 58 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
TEM’s largest tracked holder by dollar value, ARK Investment Management LLC, sizes it at 3.8% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 3.8pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in TEM divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 458 tracked filers holding TEM, 272 increased or opened the position and 201 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in TEM between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 34
- Capital Impact Advisors, LLC$45M
- Contrarius Group Holdings Ltd$32M
- Y-Intercept (Hong Kong) Ltd$9M
- ExodusPoint Capital Management, LP$9M
- Graham Capital Management, L.P.$8M
- HSBC HOLDINGS PLC$6M
Full exits 31
- Ilex Capital Partners (UK) LLP$21M
- SG Americas Securities, LLC$15M
- PEAK6 LLC$13M
- Casdin Capital, LLC$13M
- CWM, LLC$12M
- CAPITAL FUND MANAGEMENT S.A.$10M
Largest adds
- BlackRock, Inc.$273M
- GOLDMAN SACHS GROUP INC$160M
- ARK Investment Management LLC$146M
- CITADEL ADVISORS LLC$118M
- MORGAN STANLEY$117M
- BANK OF AMERICA CORP /DE/$92M
Largest trims
- GC Wealth Management RIA, LLC$159M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$35M
- TWO SIGMA INVESTMENTS, LP$32M
- Freestone Grove Partners LP$16M
- Mitsubishi UFJ Trust & Banking Corp$11M
- MARSHALL WACE, LLP$10M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| ARK Investment Management LLC added | 10,022,634 | $581M | 9.5% | 2026-Q2 |
| BlackRock, Inc. added | 8,291,053 | $480M | 7.8% | 2026-Q2 |
| BAILLIE GIFFORD & CO trimmed | 8,190,133 | $474M | 7.7% | 2026-Q2 |
| SOFTBANK GROUP CORP. | 5,405,406 | $313M | 5.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 4,989,062 | $291M | 4.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 4,988,038 | $289M | 4.7% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 4,914,410 | $285M | 4.6% | 2026-Q2 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 4,089,029 | $237M | 3.9% | 2026-Q2 |
| Amova Asset Management Americas, Inc. trimmed | 4,089,029 | $237M | 3.9% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 3,761,666 | $218M | 3.6% | 2026-Q2 |
| MORGAN STANLEY added | 3,652,136 | $212M | 3.5% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 3,352,768 | $194M | 3.2% | 2026-Q2 |
| UBS Group AG trimmed | 2,546,634 | $148M | 2.4% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 2,512,401 | $146M | 2.4% | 2026-Q2 |
| GC Wealth Management RIA, LLC trimmed | 2,411,368 | $140M | 2.3% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,092,519 | $121M | 2.0% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 1,917,772 | $111M | 1.8% | 2026-Q2 |
| STATE STREET CORP added | 1,887,599 | $109M | 1.8% | 2026-Q2 |
| Alphabet Inc. | 1,551,102 | $90M | 1.5% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 1,428,847 | $83M | 1.4% | 2026-Q2 |
| Lingotto Investment Management LLP | 1,415,766 | $82M | 1.3% | 2026-Q2 |
| Clear Street Group Inc. added | 1,345,069 | $78M | 1.3% | 2026-Q2 |
| Legal & General Group Plc added | 1,145,900 | $66M | 1.1% | 2026-Q2 |
| NORGES BANK added | 975,302 | $56M | 0.9% | 2026-Q2 |
| BAMCO INC /NY/ added | 904,259 | $52M | 0.9% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 880,556 | $51M | 0.8% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 858,529 | $50M | 0.8% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 852,916 | $49M | 0.8% | 2026-Q2 |
| Capital Impact Advisors, LLC new | 770,707 | $45M | 0.7% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD trimmed | 723,100 | $42M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 676,391 | $39M | 0.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 556,925 | $32M | 0.5% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 555,498 | $32M | 0.5% | 2026-Q2 |
| Contrarius Group Holdings Ltd added | 554,750 | $32M | 0.5% | 2026-Q2 |
| Marex Group Ltd trimmed | 481,854 | $28M | 0.5% | 2026-Q2 |
| Patient Capital Management, LLC trimmed | 400,698 | $23M | 0.4% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 390,241 | $23M | 0.4% | 2026-Q2 |
| Bank of New York Mellon Corp added | 378,634 | $22M | 0.4% | 2026-Q2 |
| BARCLAYS PLC trimmed | 351,025 | $20M | 0.3% | 2026-Q2 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd added | 350,997 | $20M | 0.3% | 2026-Q2 |
| GILDER GAGNON HOWE & CO LLC trimmed | 345,929 | $20M | 0.3% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 320,724 | $19M | 0.3% | 2026-Q2 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 309,450 | $18M | 0.3% | 2026-Q2 |
| LPL Financial LLC added | 300,000 | $17M | 0.3% | 2026-Q2 |
| Aberdeen Group plc added | 295,630 | $17M | 0.3% | 2026-Q2 |
| Trexquant Investment LP trimmed | 295,452 | $17M | 0.3% | 2026-Q2 |
| Nuveen, LLC trimmed | 285,265 | $17M | 0.3% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS added | 283,009 | $16M | 0.3% | 2026-Q2 |
| Jump Financial, LLC added | 257,123 | $15M | 0.2% | 2026-Q2 |
| Eagle Health Investments LP | 256,269 | $15M | 0.2% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 239,932 | $14M | 0.2% | 2026-Q2 |
| CITIGROUP INC added | 232,453 | $13M | 0.2% | 2026-Q2 |
| DNB Asset Management AS added | 230,312 | $13M | 0.2% | 2026-Q2 |
| EXCHANGE TRADED CONCEPTS, LLC added | 228,408 | $13M | 0.2% | 2026-Q2 |
| KADENSA CAPITAL Ltd trimmed | 217,591 | $13M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 210,000 | $12M | 0.2% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 207,373 | $12M | 0.2% | 2026-Q2 |
| Invesco Ltd. trimmed | 200,920 | $12M | 0.2% | 2026-Q2 |
| Vestmark Advisory Solutions, Inc. added | 190,122 | $11M | 0.2% | 2026-Q2 |
| ARES MANAGEMENT LLC | 164,383 | $10M | 0.2% | 2026-Q2 |
| Y-Intercept (Hong Kong) Ltd added | 156,081 | $9M | 0.1% | 2026-Q2 |
| ExodusPoint Capital Management, LP added | 147,225 | $9M | 0.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 146,140 | $8M | 0.1% | 2026-Q2 |
| Krane Funds Advisors LLC added | 143,881 | $8M | 0.1% | 2026-Q2 |
| Graham Capital Management, L.P. new | 139,000 | $8M | 0.1% | 2026-Q2 |
| Aristotle Atlantic Partners, LLC trimmed | 135,308 | $8M | 0.1% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 133,016 | $8M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 120,442 | $7M | 0.1% | 2026-Q2 |
| Bank Julius Baer & Co. Ltd, Zurich added | 117,716 | $7M | 0.1% | 2026-Q2 |
| Kohlberg Kravis Roberts & Co. L.P. | 117,652 | $7M | 0.1% | 2026-Q2 |
| HSBC HOLDINGS PLC added | 108,931 | $6M | 0.1% | 2026-Q2 |
| CI INVESTMENTS INC. added | 108,629 | $6M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 107,956 | $6M | 0.1% | 2026-Q2 |
| Entropy Technologies, LP added | 107,778 | $6M | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 106,592 | $6M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 106,401 | $6M | 0.1% | 2026-Q2 |
| Blue Water Life Science Advisors, LP trimmed | 105,412 | $6M | 0.1% | 2026-Q2 |
| Avidity Partners Management LP added | 105,000 | $6M | 0.1% | 2026-Q2 |
| Private Advisor Group, LLC added | 102,342 | $6M | 0.1% | 2026-Q2 |
| Summit Financial, LLC added | 100,793 | $6M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 99,982 | $6M | 0.1% | 2026-Q2 |
| Temasek Holdings (Private) Ltd added | 99,316 | $6M | 0.1% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 94,962 | $6M | 0.1% | 2026-Q2 |
| IMC-Chicago, LLC added | 92,439 | $5M | 0.1% | 2026-Q2 |
| Baker Avenue Asset Management, LP added | 89,222 | $5M | 0.1% | 2026-Q2 |
| Washington Trust Advisors, Inc. added | 89,166 | $5M | 0.1% | 2026-Q2 |
| TORONTO DOMINION BANK | 87,464 | $5M | 0.1% | 2026-Q2 |
| BLAIR WILLIAM & CO/IL trimmed | 86,638 | $5M | 0.1% | 2026-Q2 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM added | 83,550 | $5M | 0.1% | 2026-Q2 |
| Mirae Asset Global Investments Co., Ltd. trimmed | 78,797 | $5M | 0.1% | 2026-Q2 |
| ALLEN OPERATIONS LLC | 76,621 | $4M | 0.1% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP trimmed | 73,499 | $4M | 0.1% | 2026-Q2 |
| WORLDQUANT MILLENNIUM ADVISORS LLC added | 71,736 | $4M | 0.1% | 2026-Q2 |
| FMR LLC added | 71,312 | $4M | 0.1% | 2026-Q2 |
| Cetera Investment Advisers added | 70,977 | $4M | 0.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 69,744 | $4M | 0.1% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 68,699 | $4M | 0.1% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 63,864 | $4M | 0.1% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) trimmed | 61,367 | $4M | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 60,615 | $4M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.