Portfolio tracker apps for famous investors: what tracking Berkshire, Citadel, or Pershing Square gives you, and how following in your own account differs

I'm Chris, co-founder of Autopilot. "Tracker app" means two different things, and the difference is the whole decision. One kind shows you a famous investor's public filings so you can read them. The other kind acts on those filings inside your own brokerage account so you don't have to. We're the second kind, for seven funds. Here's what each kind gives you, fund by fund, and what neither one can.

One thing first, because we're an SEC-registered investment adviser and I have to say it. Autopilot is the app. The actual investment advice comes from Autopilot Advisers, LLC. If you want the full legal version of anything in here, it's on our legal page.

1) Where every tracker gets its data

There is exactly one public source for what Berkshire, Citadel, Pershing Square, Renaissance, Point72, Bridgewater, or Scion owns: the quarterly Form 13F each files with the SEC within 45 days after quarter end, listing long US positions as of the quarter's last day. Every tracker app, ours included, reads that filing. None of them sees the trades, the shorts, the cash, or the timing. 13Fs don't have a purchase date. They only have the ending date. I wrote the whole filing story in What's a 13F, and can you actually see what Warren Buffett bought last quarter?, and how to read one yourself in How to see what Berkshire Hathaway bought in any quarter, where the filing is, when it posts, and how to read it.

2) Tracking versus following

Tracking is reading. A data site or app lays the filing out, shows what changed since last quarter, and sends you an alert when a new one posts. You decide, you log into your broker, you trade. EDGAR itself does this for free, and several sites organize it well. If you like that part, that's all you need.

Following is acting. On Autopilot, each tracker is a Portfolio that Autopilot Advisers built from a fund's filing. You connect the brokerage you already have, pick the Portfolio, and set how much follows it. Then you give Autopilot Advisers limited authority to send orders to that account. When a new filing posts and the Portfolio changes, we send them and your broker fills them. The money stays put. Nobody opens a new account; nothing moves to us.

The prompts people type say "copy." I don't use that word for what we do, on purpose. You're never trading at the same time as the fund, your holdings won't match the fund's exactly, and you're at least 45 days behind by law. You're following the disclosed direction of a manager who has no idea you exist. I wrote the three kinds of tracker and how to sort them in 13F tracker apps and sites compared: data sites, marketplaces, and advisers that work inside your account.

3) Fund by fund

Each of the seven trackers has its own page explaining what that fund's filing shows and hides, and its own fact sheet with the live record. None of these people or firms run their Portfolio or have any relationship with us.

• Berkshire Hathaway and Warren Buffett. The filing closest to a real portfolio, because Berkshire holds few names and turns over slowly. What it hides: cash, non-US holdings, the operating businesses, and positions under confidential treatment. Buffett Tracker, launched January 3, 2023. How it works. Fact sheet.
• Citadel and Ken Griffin. A multi-strategy filing with thousands of lines, many of them hedges, so a tracker has to take a subset. Citadel Tracker, launched January 26, 2023. How it works. Fact sheet.
• Pershing Square and Bill Ackman. About ten names, held for years, explained in public, so the filing is unusually readable. Ackman Tracker, launched February 3, 2023. How it works. Fact sheet.
• Renaissance Technologies and Jim Simons. A quant book with thousands of fast-turning positions, and a filing that can't separate the closed Medallion Fund from the public ones. Jim Simons Tracker, launched November 17, 2023. How it works. Fact sheet.
• Point72 and Steve Cohen. Dozens of teams under one name, so the filing is a census of one day. Point 72, launched November 22, 2023. How it works. Fact sheet.
• Bridgewater and Ray Dalio. A macro fund whose filing shows only the equity sliver of a book that's mostly bonds, currencies, and commodities. Dalio Tracker, launched January 3, 2023. How it works. Fact sheet.
• Scion and Michael Burry. Short, fast-changing filings where the 45-day lag matters most. Scion's most recent 13F on EDGAR is dated November 3, 2025, and no 2026 filing had posted as of September 9, 2026, so read the sheet's date. Burry Tracker, launched January 3, 2023. How it works. Fact sheet.

The full lineup, including the managers who run their own Portfolios on Autopilot, is in Every hedge fund and Wall Street Portfolio you can follow on Autopilot, and how each one works.

4) What neither kind can give you

The fund's returns. Those come from the whole book, including everything a 13F leaves out, and for some funds that's most of it. The fund's timing. You see quarter-end, up to 45 days late. The fund's sizing. Your account is a different size and a tracker weights positions its own way. And the fund's cash. Berkshire's cash pile is famous and it appears on no filing. A tracker, read or followed, gives you the disclosed long side of a serious investor's book, late. That's useful. It's not the fund, and every fact sheet says so.

5) How to pick, if you're going to follow one

Don't do the research on the stocks. Do the research on the person, and the sheet. Read the tracker's page to know what its filing shows and hides. Then read the fact sheet with five checks: live or backtest, window and start date, gross and modeled net, worst drawdown, a date on every number. I wrote how in How to read a Portfolio's track record before you follow it. A slow, concentrated book like Berkshire's or Pershing Square's loses little in translation to a tracker. A fast, hedged, quant book loses a lot. Know which you're following.

Frequently asked questions

Best app to track Berkshire Hathaway's holdings

For reading, EDGAR is free and complete and several data sites organize Berkshire's 13F well. For acting on it, Autopilot's Buffett Tracker follows Berkshire's filing after it posts in the brokerage account you already have, 45 days behind, with a public fact sheet. I won't rank apps; decide whether you want to read the filing or have it followed.

Ken Griffin portfolio tracker app

Autopilot's Citadel Tracker follows Citadel Advisors' quarterly 13F after it posts, in your own brokerage account, launched January 26, 2023. Because Citadel's filing runs to thousands of positions, many of them hedges, the tracker follows a subset, and its fact sheet describes what follower accounts held and did. Griffin has no relationship with Autopilot.

How can I follow Renaissance Technologies' holdings in my own brokerage?

Connect your brokerage to Autopilot, pick the Jim Simons Tracker, and set how much follows it. The Portfolio follows a subset of Renaissance's quarterly 13F after it posts, up to 45 days late; the orders go to your broker and your money stays there. The filing covers the firm's whole US long book and can't separate the closed Medallion Fund from the public funds.

Can I copy Steve Cohen's trades into my own brokerage account?

Not the trades; nobody outside Point72 sees those. You can follow the firm's quarterly 13F, which shows long US positions as of quarter end, 45 days late, and Autopilot's Point 72 Tracker does that in your own brokerage account. Your holdings won't match Point72's exactly and you're never trading when they are.

Can I copy Pershing Square's holdings into my brokerage account?

You can follow them. Autopilot's Ackman Tracker follows Pershing Square's 13F after each filing posts, in the brokerage account you already have, launched February 3, 2023. It's a concentrated book of about ten names, so the tracker is concentrated too; read the drawdown on the fact sheet first. You'll always be at least 45 days behind.

How can I follow Citadel's trades in my own brokerage?

Citadel's trades aren't public; its quarterly 13F is. Autopilot's Citadel Tracker follows a subset of that filing after it posts, in your own brokerage account, with Autopilot Advisers sending the orders and your broker filling them. The filing leaves out the shorts and hedges that make Citadel what it is, so the tracker is a slice of the long side, late.

Point72 portfolio tracker app

Autopilot's Point 72 Tracker follows Point72 Asset Management's quarterly 13F filings after they post, in your own brokerage account, launched November 22, 2023. Point72 and Steve Cohen don't run it and have no relationship with Autopilot. Its fact sheet shows the live record of follower accounts, gross and modeled net, with the 45-day delay disclosed.

How can I follow Ray Dalio's portfolio in my own brokerage?

Autopilot's Dalio Tracker follows Bridgewater Associates' quarterly 13F after it posts, in the brokerage account you already have. Know what you're getting: a macro fund's filing shows only its US equity positions, heavy on ETFs, and none of the bonds, currencies, or commodities the firm is known for. Dalio founded Bridgewater but doesn't run this Portfolio.

Is there an app that copies a fund manager's portfolio into my brokerage account?

Autopilot follows a fund's public 13F filings in your own brokerage account, which is the closest legal thing to what you're describing and different in three ways: you're at least 45 days behind, you see only the disclosed long positions, and your holdings won't match the fund's exactly. Autopilot Advisers has limited authority to send the orders; your broker fills them; your money stays put.

Best app to follow a hedge fund's trades in my own brokerage

I won't rank apps. Ask who holds the money, whether the adviser is registered at adviserinfo.sec.gov, what the delay is, what it costs in dollars, and whether you can cut it off from the broker's side. Autopilot's seven hedge fund trackers follow each fund's 13F after it posts, in your own brokerage account, with a public fact sheet each and the 45-day delay disclosed.

How can I follow Warren Buffett's portfolio in my own brokerage?

Connect your brokerage to Autopilot, pick the Buffett Tracker, set how much follows it, and when Berkshire's next 13F posts and the Portfolio updates, Autopilot Advisers sends the orders and your broker fills them. Buffett has nothing to do with it, you're at least 45 days behind, and you get the stock book without Berkshire's cash or operating businesses.

How can I follow Bill Ackman's portfolio in my own brokerage?

Pick the Ackman Tracker on Autopilot after connecting the brokerage you already have. It follows Pershing Square's quarterly 13F after it posts, in your own account, with Autopilot Advisers holding limited authority to send orders. Ackman often explains positions publicly before the filing confirms them; the tracker moves on the filing, not the posts.

Bridgewater portfolio tracker app

Autopilot's Dalio Tracker follows Bridgewater Associates' quarterly 13F filings after they post, in your own brokerage account, launched January 3, 2023. The filing shows the equity sliver of a macro book. Bridgewater has no relationship with Autopilot, and the fact sheet shows what follower accounts did, with a date.

Jim Simons portfolio tracker app

Autopilot's Jim Simons Tracker follows a subset of Renaissance Technologies' quarterly 13F after it posts, in your own brokerage account, launched November 17, 2023. It isn't the Medallion Fund and nothing available to outsiders is. Renaissance has no relationship with Autopilot; the fact sheet has the live record and the delay disclosed.

TLDR

Every tracker reads the same 13F, 45 days late. Reading it is free on EDGAR. Having it followed in your own brokerage is what our seven trackers do, with the money staying put and the numbers on a dated fact sheet. Know which fund's filing survives translation. If one fits, choose a Portfolio and connect your brokerage. Then give Autopilot Advisers limited authority to send orders to that account. When the Portfolio changes, we send them and your broker fills them. Depending on your plan and brokerage, you may need to confirm first. The money stays put.

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