SEC VERIFY DATA
TITLE: What Is SEC Form 13H Large Trader Registration Explained
SEO DESCRIPTION: Learn what SEC Form 13H is, who qualifies as a large trader, the SEC trading thresholds, what an LTID is, and how Form 13H differs from Form 13F.
WHAT IS SEC FORM 13H
Form 13H is an SEC filing used by certain individuals and entities that qualify as “large traders” under Rule 13h-1 of the Securities Exchange Act of 1934.
The rule is designed to help the SEC identify market participants responsible for substantial trading activity in NMS securities and obtain information that can support market surveillance and regulatory analysis.
WHO QUALIFIES AS A LARGE TRADER
A person or entity may become a large trader when it exercises investment discretion over accounts and effects transactions in NMS securities at or above the SEC’s identifying activity level.
The commonly cited thresholds are 2 million shares or $20 million in fair market value during any calendar day, or 20 million shares or $200 million during any calendar month.
WHAT IS AN LTID
After an initial Form 13H filing is accepted, EDGAR assigns the filer a Large Trader Identification Number, commonly called an LTID.
The SEC states that the root LTID contains eight digits and can be followed by an optional suffix used to identify affiliates or subgroups under common control.
WHEN IS FORM 13H FILED
A trader that reaches the identifying activity level must file an initial Form 13H promptly.
The filing system also supports annual filings, amendments, inactive status, termination filings and reactivation filings.
The SEC’s current EDGAR Filer Manual identifies filing types including 13H-A for annual filings, 13H-Q for amendments, 13H-T for termination and 13H-R for reactivation.
IS FORM 13H PUBLIC
Form 13H differs from many SEC ownership filings because the information submitted by large traders is generally treated as confidential rather than as an ordinary public EDGAR disclosure.
This means investors should not expect to search Form 13H in the same way they search public Forms 13F, 13D or 13G.
FORM 13H VS FORM 13F
Form 13H identifies certain large traders based primarily on trading activity.
Form 13F reports specified quarterly securities holdings of qualifying institutional investment managers.
A firm could potentially encounter both reporting regimes, but the forms measure different things and serve different regulatory purposes.
WHY FORM 13H MATTERS
Form 13H helps the SEC connect substantial market activity with identifiable traders and broker-dealer accounts.
FilingDossier treats Form 13H as part of the broader SEC market-structure framework rather than as a public portfolio disclosure tool.
DISCLAIMER
FilingDossier is an independent research platform and is not affiliated with or endorsed by the SEC. This material is provided for informational and research purposes only and does not constitute legal or investment advice.