What Is an SEC Joint Ownership Filing? Two Different Rules

"SEC joint ownership filing" is not the name of one specific SEC form. It usually refers to one of two separate rules: a joint Schedule 13D or 13G filed by more than one beneficial owner of the same stock, or a joint Form 3, 4 or 5 filed by more than one insider reporting the same transaction. Both let several parties file one filing instead of several, but they apply to different kinds of ownership and different rules.

This guide explains both kinds of joint filing, what has to go into the joint filing agreement either one requires, and how to pull the individual filers back out of a joint filing as structured data.

Two different "joint" filings on EDGAR

Why a Schedule 13D or 13G is filed jointly

Section 13(d) of the Exchange Act requires every person who beneficially owns more than 5% of a registered class of equity securities to file a Schedule 13D or, for qualifying passive holders, the shorter Schedule 13G. "Beneficial ownership" under Rule 13d-3 often reaches more than one legal person at once. A fund, its general partner and the individual who controls the general partner can all be treated as beneficial owners of the same shares, because each one could be said to have voting or investment power over them.

Rule 13d-1(k) lets those persons file a single statement instead of three nearly identical ones. The statement must identify every person it is filed on behalf of, and a written agreement to file jointly must be attached as an exhibit. Later amendments to the position can also be filed jointly by the same group.

What the joint filing agreement actually says

A Rule 13d-1(k) joint filing agreement is usually short, and nearly every one makes the same three points:

1. The named parties agree that the Schedule 13D or 13G (and any amendments) may be filed on behalf of each of them.
2. Each party is responsible for the accuracy of the information it supplies about itself.
3. No party is responsible for another party's information, unless it knows or has reason to believe that information is inaccurate.

That third point matters when you read a joint filing: the reporting persons table can mix fully controlled entities with people who only share a filing obligation, and the agreement tells you each one only vouches for its own numbers.

Why a Form 3, 4 or 5 is filed jointly

Section 16 of the Exchange Act requires officers, directors and 10% owners to report their transactions and holdings in the company's stock, starting with an initial Form 3 when they first take on that status. The same transaction can belong to more than one reporting person at once, most often an officer or director and an entity they control, such as a trust, a family limited partnership or a holding company. Rather than file identical Form 4s for the same trade, the Form 4 instructions let the filers designate one of them to file on behalf of all, listing the other reporting persons and their relationship to the issuer inside the same form.

A joint Form 4 still needs a signature, or an authorized signature, for every reporting person it covers, and many filers attach the same kind of joint filing agreement used for Schedule 13D and 13G to establish that authorization in writing.

How to find joint filings on EDGAR

EDGAR's full text search will return joint filing agreements if you search for the phrase "joint filing" or "Rule 13d-1(k)" and filter by form type SC 13D or SC 13G. That works well for one filing at a time, but counting how many reporting persons sit on a given filing, or finding every joint filing where a particular fund appears as one of several filers, means parsing the reporting persons table out of each filing by hand.

Reading joint filings as structured data

SecFeed parses every reporting person or owner on a filing into its own row, so a joint filing with three filers returns three structured entries instead of one blob of text.

curl "https://secfeedapi.com/v1/form-13d-13g?flat.maxPercentOfClass__gte=10&fields=flat" \
  -H "Authorization: Bearer YOUR_API_KEY"

A joint Schedule 13D comes back with every reporting person listed under reportingPersons, each with its own voting and dispositive power:

{
  "flat": {
    "issuerName": "EXAMPLE ISSUER INC",
    "cusips": ["000000000"],
    "reportingPersons": [
      {"name": "EXAMPLE HOLDINGS LLC", "aggregateOwned": 750000000, "percentOfClass": 8.52},
      {"name": "EXAMPLE GP PARTNERS LLC", "aggregateOwned": 750000000, "percentOfClass": 8.52}
    ],
    "maxPercentOfClass": 8.52
  }
}

A joint Form 4 is similar, with each insider listed under owners inside the Insider Trading API:

from secfeed import Client

sf = Client("YOUR_API_KEY")
trades = sf.insider_trading(ticker="EXAMPLE")
for t in trades:
    if len(t["owners"]) > 1:
        print(t["accession"], [o["name"] for o in t["owners"]])

Both fields exist on every filing, joint or not. A filing with only one reporting person or owner simply has an array of length one.

Frequently asked questions

Is "joint ownership filing" an actual SEC form?

No. It is not a form name, it is a description of two separate rules that let multiple people file one statement instead of several: a joint Schedule 13D or 13G under Rule 13d-1(k), or a jointly filed Form 3, 4 or 5 for a transaction more than one insider must report.

Who is legally responsible for the information in a joint filing?

Each named filer is responsible for the accuracy of the information it supplies about itself. A filer is not responsible for another filer's information unless it knows or has reason to believe that information is inaccurate. The written joint filing agreement, attached as an exhibit, states this directly.

Can a joint Schedule 13D later be amended separately by just one filer?

The schedule can be amended jointly by the same group it was originally filed by, or a person can stop being covered by a joint filing and begin filing its own amendments once it is no longer part of the same group for beneficial ownership purposes.

Why would an officer and a trust they control file one Form 4 instead of two?

Because the same transaction, such as a sale out of a family trust the officer controls, can create a reporting obligation for both the officer individually and the trust. Filing jointly avoids reporting the identical trade twice under two separate forms.

Does a joint filing mean the filers are acting as a group under Section 13(d)?

Not necessarily. Filing jointly under Rule 13d-1(k) is a filing convenience. Whether the filers are a "group" for purposes of aggregating their ownership is a separate legal question that depends on whether they have agreed to act together with respect to the issuer's securities.