SEC 13F Filing Requirements: Everything You Need to Know

Author: PavanTeja Settivari
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Date: 2 December 2025
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Categories: Shareholder Disclosures

Introduction

Transparency is a cornerstone of U.S. financial markets. To achieve this, the Securities and Exchange Commission (SEC) requires certain institutional investment managers to file Form 13F under Section 13(f) of the Securities Exchange Act of 1934. This filing provides insight into the holdings of large investment managers, promoting market integrity and investor confidence.

If you manage significant assets, understanding SEC 13F filing requirements is critical to avoid penalties and reputational risk.

What is SEC Form 13F?

Form 13F is a quarterly report that discloses the equity holdings of institutional investment managers. It was introduced in 1975 to increase public visibility into institutional ownership and trading activity. The information is made publicly available through the SEC’s EDGAR system, allowing regulators and investors to monitor market trends.

Who Must File Form 13F?

You must file Form 13F if:

  • You are an institutional investment manager (e.g., investment adviser, bank, insurance company, broker-dealer).
  • You exercise investment discretion over accounts holding Section 13(f) securities.
  • The aggregate fair market value of these securities is $100 million or more on the last trading day of any month in a calendar year.

Once you cross the $100 million threshold, you must:

  • File your initial Form 13F for the fourth quarter of that year.
  • Continue filing quarterly until at least the third quarter of the following year, even if assets fall below the threshold.

What Are Section 13(f) Securities?

These include:

  • U.S. exchange-listed equities (NYSE, NASDAQ, AMEX).
  • Shares of closed-end investment companies.
  • Certain equity options, warrants, and convertible debt securities.
  • Exchange-Traded Funds (ETFs).
    Note: Mutual funds are excluded.

The SEC publishes an official list of Section 13(f) securities quarterly.

Filing Deadlines

Form 13F must be filed within 45 days after the end of each calendar quarter.

Typical deadlines:

  • Q1: May 15
  • Q2: August 14
  • Q3: November 14
  • Q4: February 14 (following year)

Information Required

Each Form 13F filing must include:

  • Issuer name.
  • Class of security.
  • CUSIP number (or FIGI identifier).
  • Number of shares held.
  • Fair market value as of quarter-end.
  • Details on investment discretion and voting authority.

Recent Amendments

The SEC adopted updates effective January 2023, including:

  • Mandatory electronic filing of confidential treatment requests.
  • Additional identifiers (e.g., CRD number, SEC file number).
  • Option to report FIGI alongside CUSIP.
  • Dollar values rounded to the nearest dollar (not $1,000).

Further, starting July 2024, Form 13F filers must also submit Form N-PX annually, disclosing proxy votes on executive compensation matters (“say-on-pay” proposals).

Penalties for Non-Compliance

Failure to file or late filings can result in SEC enforcement actions and penalties up to $750,000. The SEC has increased scrutiny, including sweep exams and enforcement for delinquent filers.

Compliance Challenges

  • Data accuracy: Misreporting securities not on the official list.
  • Timeliness: Missing the 45-day deadline.
  • Complexity: Shared investment discretion and aggregation rules.
  • Reporting: XML based reporting

How Galaxy Helps

Funds-Axis’ Galaxy Shareholder Disclosures Module simplifies SEC 13F compliance by:

  • Automating monitoring of thresholds and holdings.
  • Generating EDGAR-ready reports.
  • Providing audit trails for regulators.

Book a Demo to see how Galaxy streamlines global disclosure compliance.

Conclusion

SEC Form 13F is more than a regulatory obligation, it’s a transparency tool that shapes market confidence. For institutional managers, automation is key to reducing risk and ensuring timely, accurate filings.

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