Follow the world's best investors.
What they did after the 13F, who owns each stock and the 13F season live.
The portfolios of 47 well-known investors and 703 concentrated managers: what they held, what changed and how old the data is.
- Free
- No credit card
- With Google or email
- 4 SEC sources13F, Form 4, 13D/13G and 8-K
- Data as of Nov 5, 2026Updated every day
- Insiders every 5 minWhile the SEC accepts filings
148 of 703 concentrated managers have filed. The deadline is November 16 (11 days left).
Of the 46 well-known investors, 2 have filed their Q3 2026 13F so far (Michael Burry, who no longer files, is not counted). They usually file in the last few days before the deadline.
Tell me when they fileLatest to file: Lindsell Train (Nick Train, Nov 2) and Markel Group (Oct 30).
See who has filed →- Lindsell Train (Nick Train) filed its Q3 2026 13F: trimmed Thermo Fisher Scientific (9.8% → 12.4%)13F · Nov 2
- Markel Group filed its Q3 2026 13F13F · Oct 30
- Berkshire Hathaway added to Alphabet: from 6.3% to 12.6% of its portfolio6.3% → 12.6%
- Advanced Micro Devices went from 54 to 79 concentrated managers' portfolios54 → 79 portfolios · Q2 2026
Reported to the SEC (13F and 13D). Portfolios as of Sep 30, 2026 and Jun 30, 2026 · data as of Nov 5, 2026. See more moves →
What you can see for free, no account needed
Every figure comes from an official SEC document and links to it. Search EDGAR ↗
- The portfolios of 47 well-known investorsWhat they hold and what changed each quarter13F
- Which stocks insiders are buyingOpen-market purchases, last 30 daysForm 4
- Who reported more than 5% of a companyLarge stakes and how they change13D · 13G
- Where managers overlapStocks held in several portfolios at once13F
- Managers you did not know703 concentrated portfolios, compared with the S&P 50013F
- Every stock, who holds itHolders and the company's material events13F · 8-K
Tables download as CSV. A 13F is a quarter-end snapshot filed up to 45 days later; a Form 4, within two business days of the trade.
Who holds the same stocks you do?
Add your stocks and see which great investors hold them. With a free account you save your list and we watch your stocks.
- Type your US tickers.
- See which well-known investors and concentrated managers reported them in their latest 13F.
- If you like, save your list with a free account and we watch your stocks.
Most searched
- What managers added and droppedThe latest quarter in a few lines, with real figures.
- Stocks most managers addedQ2 2026: AMD · INTC · MU
- Stocks most managers droppedQ2 2026: INTU · MSFT · NFLX
- Where well-known investors agreeQ2 2026: STX · UBER · HD
- What stocks insiders are buyingOpen-market purchases from SEC Form 4, last 30 days.
- Sectors in 13F portfoliosWhere concentrated managers hold their portfolios, sector by sector.
What your free account adds
Follow investors, managers and stocks. On days when one of them files a 13F, or someone reports a stake above 5% in a stock you follow, you get a single email with everything: what they opened, added to, trimmed and sold. One a day at most.
- We watch your stocks: add your portfolio and see who reports a stake above 5% (by email too, if you turn it on) and what insiders buy
- Email updates (new): one summary on days when the ones you follow file, one a day at most. Off by default: you turn it on, in one click
- Follow investors and stocks: every time you come back, see what changed since your last visit
- The full profile: holders, financials and history since 2013
- Compare managers and see where they overlap
See an example email
- Lindsell Train (Nick Train) filed its Q3 2026 13F: trimmed Thermo Fisher Scientific (9.8% → 12.4%)13F · Nov 2
- Markel Group filed its Q3 2026 13F13F · Oct 30
What GestorLens looks like inside
Real screenshots of the site.
We measured whether copying them works. Blindly, it does not.
To understand, not to copy: we measured 129,534 cases and copying them blindly did not beat the index.
129,534 cases since 2013: averaging the quarters, the stock in these portfolios returned 3.7 points less than the S&P 500 over the following twelve months, and only 40% of cases beat it. That is why there are no buy lists here: just data to understand what each investor does.
Price only, no dividends, costs or taxes. The gap versus the index is not statistically significant. Past results.
How to get the most out of it
Three ways to start, depending on what you are after. Each with its steps and its limits.
- If you have 2 minutesYour portfolio X-rayType your stocks and see which professional managers own them. No account needed.
- If you follow someoneThe 13F season, liveWho has filed their 13F this quarter and what changed, day by day.
- If you are looking at a stockA stock checklistFrom consensus to the full profile, in an order that skips nothing.
FAQ
What you will not find here
- PricesPrices or quote charts. We show what is reported to the SEC.
- RecommendationsRecommendations. No page tells you what to buy or sell.
- Today's dataToday's data. A 13F is a quarter-end snapshot filed up to 45 days later. Every page says how old it is.
- NewslettersNewsletters. We only write if you turn on updates: one email a day at most.
Is it free?
Yes. Sign in with your Google account or with email and password, no credit card.
What is the account for?
To follow investors and stocks, see what changed since your last visit and, if you want, get it by email; open the full profile (holders, financials, history), compare managers and build your portfolio. Without an account you see portfolios and summaries.
Will you email me?
Only if you ask. If you turn on updates, you get at most one email a day with what's new in what you follow, and only on days when there is something. We do not send newsletters or promotions. Turn them off in one click, from your account or from the email itself. On Telegram we post when a well-known investor files.
Who makes it?
Cristian Díaz, independently. There is no investment firm or advisers behind it.
How current is the data?
The update runs every day; Form 4s, every few minutes. 13Fs show portfolios at quarter-end and are filed up to 45 days later, so positions may have changed.
Is this investment advice?
No. It is information and analysis of public data for your own research.
Why are there no prices?
Because the site shows what is reported to the SEC. Where a reference is needed we use the quarter-end price implied by the 13F itself, and we say so.
Which managers are included?
Every 13F filer at the SEC, and we count “concentrated managers” separately: portfolios of 5 to 100 stocks, concentrated and low-turnover, excluding operating companies, banks, foundations and private equity. The rules and the list are in the methodology.
Will it be paid?
What you see today is free, and what is free today stays free for anyone who already has an account. A PRO version with additional tools is in preparation, with no date or price yet.
November 16 is the Q3 deadline. Choose who to follow today.
Create your account, build your list and turn on updates: the day they file, you get an email.