---
title: "Schedule 13D vs 13G: How 5% Shareholders Disclose Their Stakes"
description: "Cross 5% of a public company and you must file a Schedule 13D (active intent) or 13G (passive stake). What each form discloses, the post-2024 filing deadlines, when a 13G must convert to a 13D, and how both relate to Form 4."
canonical: https://insideralpha.ai/learn/schedule-13d-vs-13g
date_published: 2026-08-03
date_updated: 2026-09-23
publisher: InsiderAlpha (https://insideralpha.ai)
---

Canonical URL: https://insideralpha.ai/learn/schedule-13d-vs-13g
Published 2026-08-03. Updated 2026-09-23.

# Schedule 13D vs 13G: how 5% shareholders disclose their stakes

Any investor whose beneficial ownership of a U.S. public company's registered equity crosses **5%** must tell the market, and the choice of form says something about the holder. A **Schedule 13D** says "I may seek to influence this company"; a **Schedule 13G** says "I'm just holding." There are two forms because the rules treat active and passive holders differently.

## Where the 5% threshold comes from

The obligation is Section 13(d) of the Securities Exchange Act of 1934 and the rules under it (Regulation 13D-G). It bites on **beneficial ownership**, not on shares held outright: a person beneficially owns a security if they have or share the power to vote it or the power to dispose of it, and options or other rights exercisable within 60 days count toward the total. Two consequences catch people out. A holder can cross 5% without buying anything, because the company retired stock and shrank the denominator. And members of a **group** acting together are aggregated and treated as one beneficial owner, which is how a coordinated stake becomes reportable even though no single member crossed the line.

The SEC's staff maintains a long [set of interpretations on Sections 13(d) and 13(g)](https://www.sec.gov/rules-regulations/staff-guidance/corporation-finance-interpretations/exchange-act-sections-13d-13g-regulation-13d-g-beneficial-ownership-reporting) for the edge cases, and it is the first place to look when a situation does not fit the summary above.

## Schedule 13D: the activist filing

A 13D is required when the holder has, or may develop, intent to influence control - board seats, strategy, a sale of the company. Since the deadline reforms adopted in [Release 33-11253, "Modernization of Beneficial Ownership Reporting"](https://www.sec.gov/rule-release/33-11253) ([announced October 2023](https://www.sec.gov/newsroom/press-releases/2023-219), compliance from February 2024) it must be filed within **five business days** of crossing 5%, down from the ten calendar days that had stood since 1968, and amended within **two business days** of a material change rather than merely "promptly."

The form has seven numbered items. Some carry much more than others:

- **Item 1 and 2** - the security and the issuer; the identity, citizenship and criminal or regulatory history of every reporting person.
- **Item 3** - source and amount of funds. Borrowed money and margin arrangements have to be described here.
- **Item 4, "Purpose of Transaction"** - the item most readers go to first. This is where a campaign is announced, and where a filer states whether they may seek board representation, a sale, a recapitalization or a change in the board.
- **Item 5** - the exact ownership figures, including sole and shared voting and dispositive power, and every transaction in the last 60 days.
- **Item 6** - contracts and understandings with anyone else, which is where swaps, voting agreements and standstills surface.
- **Item 7** - exhibits, including the joint filing agreement that reveals the members of a group.

A 13D from a known activist fund is often news on the day it appears, and the amendments that follow are the campaign's public timeline.

## Schedule 13G: the passive filing

A 13G is the lighter form for three categories of holder: **qualified institutional investors** (banks, brokers, registered investment companies and advisers holding in the ordinary course of business), **passive investors** holding below 20% with no control intent, and **exempt investors** (holders who crossed 5% without making a purchase that triggers 13D, for example by holding since before the company registered). It asks for identity, the size of the stake, and a certification about intent. There is no Item 4.

## The deadlines, by filer type

Release 33-11253 replaced a single annual amendment cycle with quarter-driven and month-driven ones. The current pattern:

| Filer | Initial filing | Amendments |
| --- | --- | --- |
| Schedule 13D (any holder with control intent) | 5 business days after crossing 5% | 2 business days after a material change |
| 13G - qualified institutional investor | 45 days after the end of the calendar quarter in which it exceeded 5%; 5 business days after the end of the month in which it exceeded 10% | 45 days after the end of a quarter with a material change; then 5 business days after any month-end at which the stake moves by more than 5 percentage points |
| 13G - passive investor | 5 business days after crossing 5% | 45 days after the end of a quarter with a material change; 2 business days on exceeding 10%, and on each later 5 percentage point move |
| 13G - exempt investor | 45 days after the end of the calendar quarter in which it exceeded 5% | 45 days after the end of a quarter with a material change |

For a Schedule 13D, Rule 13d-2(a) deems an acquisition or disposal of **1% or more** of the class to be a material change, so the two-business-day amendment clock is concrete rather than a judgment call. The 13G "material change" test is broader and less mechanical.

## 13D vs 13G at a glance

|  | Schedule 13D | Schedule 13G |
| --- | --- | --- |
| Who files | Any >5% holder with (possible) control intent | Qualified institutions, passive investors under 20%, exempt holders |
| Stated intent | May seek to influence the company | Holding only |
| Initial deadline | 5 business days after crossing 5% | 5 business days (passive) or up to 45 days after quarter-end (institutions and exempt holders) |
| Amendments | 2 business days after a material change | 45 days after a quarter with a material change, with faster triggers past 10% |
| Discloses funding source | Yes, Item 3 | No |
| Purpose of transaction | Stated in Item 4 | No Item 4; a certification about intent instead |

## When a 13G must become a 13D

The passive label is conditional. A 13G filer that develops intent to influence control - at *any* ownership level - or a passive investor whose stake reaches **20%** must convert to a Schedule 13D within five business days. That conversion is worth noticing: a holder that described itself as passive now says it may try to influence the company. Until the 13D is filed and for ten calendar days afterward, the former 13G filer also loses the right to vote or direct the voting of the shares above 5%, so a conversion shortly before a shareholder meeting can cost the holder its vote.

## Finding them on EDGAR

Both schedules are public as soon as they are accepted. On [EDGAR](https://www.sec.gov/search-filings) the form types are `SC 13D` and `SC 13G`, with `SC 13D/A` and `SC 13G/A` for amendments; searching by the *filer* rather than the issuer gives you a fund's whole book of stakes in one list. Since December 2024 both schedules are filed in a structured, machine-readable format, so the ownership percentages and the voting and dispositive power figures can be read without parsing prose.

## How 13D/G relates to Form 4

Schedules 13D and 13G report *stakes*; [Form 4](https://www.sec.gov/about/forms/form4.pdf) reports *trades*. They also trigger at different thresholds: 5% for the schedules, versus [10%](https://insideralpha.ai/learn/what-is-a-10-percent-owner) for [Section 16](https://insideralpha.ai/learn/section-16-explained) insider status. Once a holder crosses 10%, every later buy and sell goes on a Form 4 within two business days, which is faster and more detailed than quarterly 13G amendments. That makes the Form 4 trail the most frequent public record of a large holder adding shares: the schedules tell you a stake or a campaign exists, and the [Form 4s](https://insideralpha.ai/learn/sec-form-4) show each purchase within days.

Most confusion about "insider" data starts at the gap between these two regimes. A fund at 7% files a 13G, then may say nothing for a quarter. The same fund at 11% is a Section 16 insider and must report every trade within two business days. The information you get about the same investor changes character completely at the 10% line, and that discontinuity - not any change in the investor's behavior - explains why some large holders look silent and others look hyperactive.

## Reading the two forms together

- **New 13D from an activist** - a campaign is starting; check Item 4 for what they say they want, Item 6 for who else is involved, and whether company insiders have been buying too.
- **13G-to-13D conversion** - intent changed; the holder that called itself passive may now push for changes.
- **13G quietly growing via amendments** - accumulation without stated intent; watch for the 10% line, after which the [Form 4 record](https://insideralpha.ai/filings) takes over and reports arrive within two business days of each trade instead of quarterly.
- **A 13D amendment with no ownership change** - the 1% rule was not what triggered it, so read Item 4 and Item 6: something about the campaign changed, not the position.

[Browse the most active filers →](https://insideralpha.ai/insiders) · [What is a 10% owner? →](https://insideralpha.ai/learn/what-is-a-10-percent-owner)

*This article is informational and is not investment advice.*