Registered fund and ETF filings: Form 485 and N-1A data

The fund is not the same as the registrant

One legal registrant or trust can contain many fund series, and one series can have multiple share classes. The registrant CIK identifies the filing entity; SEC series and class identifiers distinguish the investment products inside it. A ticker can help with lookup, but it is not available for every class and can change.

Research should therefore start with a series or class when the question is about a particular fund or ETF, then retain the registrant and filing relationships needed for verification.

Follow the filing lifecycle, not one form type

Form N-1A is the registration form for open-end management investment companies. The public history can include initial or amended registration statements, post-effective amendments, effectiveness notices, prospectus filings, and later updates. Form types such as 485APOS and 485BPOS describe how a post-effective amendment was submitted under Rule 485; they are not product categories by themselves.

• N-1A and N-1A/A registration statements and amendments
• 485APOS amendments filed under Rule 485(a)
• 485BPOS amendments filed under Rule 485(b)
• 485BXT filings used to delay effectiveness in circumstances described by the rule
• EFFECT notices and prospectus filings such as 497 or 497K

Fields that make the filings usable

• Registrant name, CIK, and Securities Act and Investment Company Act file numbers
• Series ID, series name, class ID, class name, and ticker when reported
• Accession number, form type, filed date, accepted timestamp, and official document URLs
• Stated effective date and amendment relationships when they can be supported by the filing record
• Fund objective, strategy, fees, risks, adviser, subadviser, index, and exchange when disclosed and normalized
• As-filed values alongside normalized names and relationship evidence

Questions this dataset can answer

Connected registered-fund filings support product research that cannot be answered reliably from filing counts alone.

• Which fund series and share classes belong to a registrant or trust?
• Which prospectus or registration amendment introduced or changed a product?
• How have fees, strategy, risks, advisers, subadvisers, or index references changed across filings?
• Which official document supports a product attribute or relationship?
• How can a series or class be joined to other public adviser, filing, and holdings records?

Important interpretation limits

A 485APOS filing is not automatically a new-fund or ETF launch. It may introduce a new series, make material changes to an existing fund, or amend a broader registration statement. Filing date, stated effectiveness, exchange listing, and the start of public share sales are different events and should remain separate.

The SEC series and class file includes entities that have received identifiers but may not yet have begun selling shares, as well as records whose active status may lag a later operational change. Product status requires evidence from the relevant lifecycle, not a single field.

How AUMSearch represents registered-fund data

AUMSearch treats the series and class as first-class product identities while preserving the registrant and every supporting filing. Names, tickers, dates, advisers, and other extracted attributes remain connected to the accession and document that reported them. Changes are labeled as comparisons across filings rather than as facts supplied by the filer.