Key Takeaways
- Quarterly holdings report for institutional investors.
- Required for managers with $100M+ in securities.
- Discloses stock, options, and equity holdings.
- Files due within 45 days after quarter-end.
What is Form 13F (SEC)?
Form 13F is a quarterly filing required by the U.S. Securities and Exchange Commission (SEC) under Section 13(f) of the Securities Exchange Act of 1934. It mandates institutional investment managers who exercise discretion over at least $100 million in certain securities to disclose their holdings, providing transparency into large investors' portfolios.
This report primarily covers U.S. publicly traded equities and related instruments, offering insight into the market activity of major players such as mutual funds, hedge funds, and banks. You can analyze these filings to better understand institutional trends and exposure to assets like SPY.
Key Characteristics
Form 13F filings are standardized disclosures designed to deliver clarity on institutional holdings. Key features include:
- Filing Threshold: Required from managers with discretion over $100 million or more in Section 13(f) securities.
- Filing Frequency: Reports must be submitted quarterly within 45 days after the quarter ends.
- Disclosure Content: Includes issuer name, security class (such as A shares), CUSIP identifier, number of shares or principal amount, and fair market value.
- Security Types: Covers exchange-traded stocks, equity options including call options, warrants, and closed-end fund shares.
- Public Accessibility: Filings are made available through the SEC’s EDGAR system, enhancing market transparency.
How It Works
Institutional managers meeting the $100 million threshold must file Form 13F electronically each quarter, reporting holdings as of the last trading day. The SEC’s official list of Section 13(f) securities defines the eligible asset universe for disclosure.
The report details each security's issuer, class, quantity, and valuation, allowing investors to track shifts in institutional ownership. Since filings occur with a 45-day lag, real-time trading strategies based solely on 13F data require caution. For example, funds heavily invested in ETFs like IVV and VOO reveal their equity exposure through these reports.
Examples and Use Cases
Form 13F disclosures provide practical insights for investors and analysts. Consider these scenarios:
- Airlines: Institutional holdings in companies like Delta can indicate confidence or caution in the sector.
- ETF Monitoring: Tracking major holders of ETFs such as SPY helps gauge large-scale market sentiment.
- Options Exposure: Reporting of call options can reveal bullish bets by hedge funds despite underlying stock positions.
Important Considerations
While Form 13F enhances transparency, there are limitations to keep in mind. The 45-day reporting delay means holdings may have changed by the time data becomes available. Additionally, the form excludes short positions and many derivatives, so holdings represent only a partial view of institutional risk.
Investors should use Form 13F as one tool among many, combining insights with current market data and other resources. Understanding the nuances of reported securities like fair market value and how different asset classes are reported helps in making informed decisions.
Final Words
Form 13F filings provide crucial transparency into large institutional holdings and investment trends each quarter. If you meet the $100 million threshold, ensure timely and accurate submissions to stay compliant and maintain market credibility.
Frequently Asked Questions
Form 13F is a quarterly report required by the SEC for institutional investment managers who exercise investment discretion over at least $100 million in certain securities, primarily U.S. publicly traded equities. It discloses their holdings to provide transparency into large investors' strategies.
Institutional investment managers, such as hedge funds, mutual funds, banks, insurance companies, and broker-dealers, must file if they manage $100 million or more in Section 13(f) securities on the last trading day of any month in a calendar year.
Form 13F must be filed within 45 days after the end of each calendar quarter, for example, the Q4 filing is due by February 14. Filings are submitted electronically through the SEC’s EDGAR system.
Form 13F reports holdings as of the quarter-end, including issuer name and security class, CUSIP number, number of shares or principal amount, and the fair market value. It also specifies options and other relevant security details.
Only discretionary holdings in Section 13(f) securities must be reported. Holdings below certain de minimis thresholds may be omitted, but managers are encouraged to disclose as much as possible for transparency.
Yes, once a manager meets the $100 million threshold and files Form 13F for that year, they must continue filing all four quarterly reports for the entire calendar year, even if assets drop below $100 million afterward.
Investors and analysts study Form 13F filings to gain insights into the investment strategies and top holdings of large institutional investors, helping them identify market trends and potential investment opportunities.


