FAQ

Q: What is a 13F?

Form 13F is a quarterly filing that institutional investors managing over $100 million must submit to the SEC. It lists all their equity holdings—stocks, equity options, convertible debt, and closed-end funds—so you can see what “smart money” owns each quarter.

Q: Who must file a 13F?

Any institutional manager with at least $100 million in U.S.-listed assets (including hedge funds, mutual funds, and “whales” like Berkshire Hathaway, Icahn Enterprises, etc.) must file. Individual activists also fall under this rule.

Q: When are 13F filings due?

Filers have 45 days after quarter-end (March 31, June 30, September 30, December 31) to submit. If the 45th day is on a weekend or holiday, filings roll to the next business day. Most institutions file just before the deadline.

Q: What securities appear on 13F filings?

• Exchange-traded equities
• Certain equity options (CALL/PUT)
• Convertible debt (PRN = principal amount)
• Shares of closed-end funds

Open-end mutual funds and ETFs file N-PORT, not 13F, so they’re not listed here.

Q: What do PRN, CALL, and PUT mean?

• PRN: Principal amount on a convertible bond
• CALL: A call option position
• PUT: A put option position

Q: Why can’t I find my favorite mutual fund or ETF?

Mutual funds and most ETFs submit N-PORT filings, not Form 13F. 13Radar focuses on 13F data.

Q: How up-to-date is the data on 13Radar?

We poll the SEC every few minutes. New filings are parsed and live on 13Radar usually within 2 minutes of SEC release.

Q: Where does 13Radar get its data?

13Radar aggregates data exclusively from SEC's EDGAR system, with a primary focus on SEC regulatory filings such as Form 13F. Stock prices, market capitalization, price changes, CUSIP identifiers, and corporate actions (e.g., stock splits) are sourced from Financial Modeling Prep.

Q: How accurate is the data?

Every data point is cross-checked against the original SEC filing and passes through multiple layers of quality control. While no system can completely eliminate the possibility of errors or delays, our verification process is designed to deliver the highest level of data integrity available.
Q: Are share counts adjusted for stock splits?

Yes. We retroactively adjust historical share counts based on stock split records to ensure consistency over time. As a result, all guru and institutional holdings tables include the note: Note: Shares and Shares Change are split-adjusted.

Q: Why do some 13F filings show incorrect dollar values?

Prior to January 3, 2023, the SEC required all 13F value fields (in the infotable) to be reported in thousands of dollars. While the new XML schema allows for exact dollar values, many filers still submit using the old format. To ensure consistency, we automatically detect whether a filing uses thousands or full-dollar values by comparing reported values with market prices and share counts. When discrepancies are found, we apply automatic corrections. In rare cases where automated detection fails, our team manually reviews and adjusts the data.

Q: I spotted an error—what should I do?

Our import pipeline is fully automated, so mistakes can slip through. Always cross-check with the original SEC filing link (provided on every position). If you see an error, email support@13radar.com and we’ll investigate.

Q: How far back does 13Radar’s database go?

Our coverage stretches back to Q1 2013. All features are free during the public beta.

1. Guru List

Q: What is the Guru List?

The Guru List lets you track the portfolios and latest moves of the world’s top investors. You can see what legendary managers are buying, selling, or holding, and compare their strategies quarter by quarter.

Q: How can I use the Guru List?

Search for a specific investor or browse the full list. Each profile shows their current holdings, recent trades, and historical performance trends—giving you a clear window into how the smartest money allocates capital.

Q: How do I track a specific investor's holdings?

• Use the search box at the top of any page.
• Type the manager’s name or ticker.
• Click their profile to see quarter-by-quarter holdings and transaction history.

2. Stock Screener - Stock Ownership Center

Q: What is the Stock Ownership Center?

It's a unique way to analyze stocks through the lens of institutional ownership. Instead of just looking at fundamentals, you can see which funds and gurus are building or trimming positions in real time.

Q: Why is this useful?

Institutional flows often signal conviction. By tracking ownership changes, you can spot early trends, confirm your own research, or avoid stocks where big money is heading for the exits.

3. Guru Consensus Pick

Q: What does the Guru Consensus Pick show?

This feature highlights the most agreed‑upon stocks and ETFs among top institutional investors. It surfaces the assets that appear most frequently across guru portfolios.

Q: How can I use consensus data?

Consensus helps you identify high‑conviction ideas—stocks that many elite investors independently agree on. It’s a quick way to filter noise and focus on names with broad institutional backing.

4. Guru Ownership Rankings

Q: What are Guru Ownership Rankings?

These rankings spotlight the stocks and ETFs with the highest concentration of ownership among elite investors, measured by both percentage of portfolio and total dollar value.

Q: Why does ownership concentration matter?

When multiple top investors allocate significant capital to the same asset, it signals strong conviction. Ownership rankings let you see which stocks dominate guru portfolios and may represent long‑term conviction plays.

Q: How do I try Premium features?

All features are currently free to every user during our Public Beta—no credit card required. Once the beta period ends, we will introduce a paid plan. 

Q:  What happens when the Public Beta ends? 

During the beta, you won't be charged, and you'll have full access to all features. After the beta concludes, our team will release the official subscription plans. At that time, you'll be able to review the details, choose whether to continue with a paid plan, or discontinue without any obligation.