13F tracker
Hedge fund 13F tracker
What the best-known hedge funds reported owning at the end of last quarter, what they just started buying, and what they added to — pulled from SEC EDGAR for 15 funds. Plus how to read a 13F without fooling yourself.
Latest filings at a glance
Largest holding, largest brand-new position and largest increased position (by reported value) in each fund's most recent 13F-HR (including any 13F-HR/A amendments) vs. its prior filing. Funds that no longer file are shown but left out of the new/add columns.
| Fund | Quarter | 13F value | Top holding | Biggest new | Biggest add |
|---|---|---|---|---|---|
| Berkshire HathawayWarren Buffett / Greg Abel | Jun 30, 2026filed Aug 14, 2026 | $299.25B | APPLE INC22.0% of fund | D R HORTON INC$581K | ALPHABET INC+45% shares |
| Pershing SquareBill Ackman | Jun 30, 2026filed Aug 14, 2026via PERSHING SQUARE INC. | $19.47B | UBER TECHNOLOGIES INC12.7% of fund | VISA INC$1.12B | UBER TECHNOLOGIES INC+15% shares |
| Scion Asset ManagementMichael Burry | Sep 30, 2025filed Nov 3, 2025Last filing: Nov 3, 2025, no longer files 13Fs | $1.38B | PALANTIR TECHNOLOGIES INC (Put)66.0% of fund | — | — |
| Bridgewater AssociatesRay Dalio (founder) | Jun 30, 2026filed Aug 14, 2026 | $24.38B | STATE STR SPDR S&P 500 ETF T16.3% of fund | EVERSOURCE ENERGY$86.4M | STATE STR SPDR S&P 500 ETF T+22% shares |
| Renaissance TechnologiesJim Simons (founder) | Jun 30, 2026filed Aug 13, 2026 | $72.62B | NVIDIA CORPORATION2.0% of fund | CROWDSTRIKE HLDGS INC$571.6M | NVIDIA CORPORATION+181% shares |
| AppaloosaDavid Tepper | Jun 30, 2026filed Aug 14, 2026 | $7.73B | AMAZON COM INC15.4% of fund | APPLE INC (Put)$241.6M | AMAZON COM INC+16% shares |
| Duquesne Family OfficeStanley Druckenmiller | Jun 30, 2026filed Aug 14, 2026 | $5.21B | Natera Inc16.6% of fund | Insmed Inc (Call)$143.9M | Taiwan Semiconductor Manufac+19% shares |
| Third PointDan Loeb | Jun 30, 2026filed Aug 14, 2026 | $4.68B | WARNER BROS DISCOVERY INC11.4% of fund | WARNER BROS DISCOVERY INC$533.2M | ALPHABET INC+486% shares |
| Tiger Global ManagementChase Coleman | Jun 30, 2026filed Aug 14, 2026 | $23.98B | TAIWAN SEMICONDUCTOR MANUFAC9.7% of fund | CEREBRAS SYSTEMS INC$662.8M | CORPAY INC+23% shares |
| Coatue ManagementPhilippe Laffont | Jun 30, 2026filed Aug 14, 2026 | $48.63B | TAIWAN SEMICONDUCTOR MANUFAC8.8% of fund | SPACE EXPLORATION TECHN CORP$3.17B | MICRON TECHNOLOGY INC+1794% shares |
| Greenlight Capital (DME Capital)David Einhorn | Jun 30, 2026filed Aug 14, 2026 | $3.91B | GREEN BRICK PARTNERS INC19.4% of fund | FORTUNE BRANDS INNOVATIONS I$123.1M | CORE NATURAL RESOURCES INC+23% shares |
| Baupost GroupSeth Klarman | Jun 30, 2026filed Aug 13, 2026 | $5.42B | AMAZON COM INC16.5% of fund | CME GROUP INC$136.7M | AMAZON COM INC+20% shares |
| Soros Fund ManagementGeorge Soros (founder) | Jun 30, 2026filed Aug 14, 2026 | $8.14B | AMAZON COM INC3.5% of fund | SUPER MICRO COMPUTER INC$111.5M | APPLE INC+6% shares |
| Icahn CapitalCarl Icahn | Jun 30, 2026filed Aug 14, 2026 | $8.26B | Icahn Enterprises LP54.0% of fund | — | Icahn Enterprises LP+13% shares |
| Lone Pine CapitalStephen Mandel (founder) | Jun 30, 2026filed Aug 14, 2026 | $16.36B | NEBIUS GROUP N.V.7.2% of fund | NEBIUS GROUP N.V.$1.18B | MEDLINE INC+78% shares |
Source: SEC EDGAR Form 13F-HR. Values as reported by the filer; option lines reflect the underlying, not premium. Full holdings on each fund page.
What a 13F is (and isn't)
Any institutional investment manager with discretion over at least $100 million in “13(f) securities” has to file Form 13F-HR with the SEC each quarter, within 45 days of quarter-end. The filing lists each long position — issuer, CUSIP, share count and market value — and flags listed options as puts or calls.
It's the closest thing retail traders get to looking at a whale's hand. But it's last month's hand: by the time it's public, the fund may have folded the position, doubled it, or hedged it with something the 13F never shows.
How to read one without tilting
- Check the period, not the filing date. A filing in mid-November describes September 30.
- Weight beats count. A new position that's 0.1% of the fund is a probe; 10% is conviction.
- Read puts and calls carefully. They're reported at the value of the underlying shares, and puts are often portfolio insurance.
- Look at changes, not just holdings. New and increased positions vs. the prior quarter are where the decisions show up.
- Remember what's missing. No shorts, no cash, no cost basis — you're seeing one side of the book.
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FAQ
What is a 13F filing?
Form 13F-HR is a quarterly report that institutional investment managers with at least $100 million in qualifying US securities must file with the SEC. It lists their long positions in 13(f) securities — mostly US-listed stocks and ETFs, plus listed options reported as puts or calls on the underlying — as of the last day of the quarter.
How delayed is 13F data?
Managers have up to 45 days after quarter-end to file, so a filing can describe a portfolio that is already six weeks or more out of date. Positions may have been sold, hedged or added to since. Treat a 13F as a historical snapshot, not a live feed.
What doesn't a 13F show?
Short positions, cash, most bonds, non-US-listed securities, many derivatives, and cost basis are not reported. Funds can also request confidential treatment for some positions. A long stock line may be part of a hedged or pairs trade you can't see.
Why do 13F put and call values look so large?
For options, the reported value generally reflects the underlying shares the contracts control, not the premium paid. A large 'put' line is often a hedge rather than a directional bet, and its size says little about what the fund actually risked.
Where does TiltRadar get the data?
Directly from SEC EDGAR. We pull each tracked fund's latest 13F-HR and the prior one, compare them, and refresh daily. If EDGAR is unreachable we fall back to our last saved snapshot and say so on the page.
Should I copy a hedge fund's 13F?
Copying a 13F means buying positions up to months after the fund did, without knowing its hedges, sizing rules or exit plan. Use 13Fs for ideas and context, not as trade signals. Nothing here is investment advice.
Not investment advice. Educational, general-audience content only. Options involve substantial risk and are not suitable for all investors. Read our full disclaimer.