---
title: "Prepare and lodge substantial holding notices for a stake in a listed entity"
url: "https://ailawframework.com/practice/mergers-and-acquisitions-private-equity/prepare-and-lodge-substantial-holding-notices-for-a-stake-in-a-listed-en"
type: "task"
site: "AI Law Framework"
id: "A2-U20261018-3"
practice_area: "Mergers & Acquisitions / Private Equity"
tier: "green"
lawyer_review: "required"
last_reviewed: "2026-10-22"
---

# Prepare and lodge substantial holding notices for a stake in a listed entity

> From the client's trade records and the relevant interests of the client and its associates, calculate the voting power before and after each acquisition or disposal, and complete the applicable substantial holding…

Canonical page: https://ailawframework.com/practice/mergers-and-acquisitions-private-equity/prepare-and-lodge-substantial-holding-notices-for-a-stake-in-a-listed-en  
Last reviewed: 2026-10-22

Site index for agents: https://ailawframework.com/llms.txt

## Key facts

| Fact | Value |
| --- | --- |
| Practice area | [Mergers & Acquisitions / Private Equity](https://ailawframework.com/practice/mergers-and-acquisitions-private-equity.md) |
| Human involvement | Green: AI drafts, lawyer checks |
| How AI is used | From the client's trade records and the relevant interests of the client and its associates, calculate the voting power before and after each acquisition or disposal, and complete the applicable substantial holding notice on the firm's validated templates, attaching the documents that gave rise to the relevant interests. |
| What the lawyer must review | Approve the templates once at setup, then for each notice confirm the relevant interests and associates counted, the voting power calculation and which form applies on the date of lodgement, including during the changeover to the new form. |
| Written for / versions | 1 jurisdiction versions below |

## Checking plan

**Lawyer review required**

The responsible lawyer reviews the work against the instructions, sources and intended use.

- What the AI does: From the client's trade records and the relevant interests of the client and its associates, calculate the voting power before and after each acquisition or disposal, and complete the applicable substantial holding notice on the firm's validated templates, attaching the documents that gave rise to the relevant interests.
- What the lawyer does: Approve the templates once at setup, then for each notice confirm the relevant interests and associates counted, the voting power calculation and which form applies on the date of lodgement, including during the changeover to the new form.
- Who reviews: Responsible lawyer with competence in the matter
- Basis: Practical workflow informed by the linked primary sources; the traffic light and working checks are editorial guidance, not a court classification.
- Why: The level reflects what the work is, the consequence of an error, and how much of the output the lawyer must independently re-derive.

## Checks the lawyer makes

1. Confirm the instructions, the jurisdiction and the complete relevant material before starting.
2. Confirm which form applies on the lodgement date: forms 603, 604 and 605 until 4 December 2026, then the Substantial holding notice, with transitional forms allowed until 3 June 2027.
3. Recalculate voting power from the trade records, including associates.
4. Check that every document required to be attached is attached.
5. Check the output against the source documents named in it before it is relied on.

## Notes

- These are suggested working checks. Confirm the required checking with the responsible lawyer before work starts; the checking approach does not establish permission to use AI.

## Sources

- [ASIC: Substantial holding notice](https://www.asic.gov.au/regulatory-resources/forms/forms-folder/substantial-holding-notice) (checked 2026-10-18)

## Forms and precedents for this task

| Form or precedent | Kind | AI level | Summary |
| --- | --- | --- | --- |
| [Substantial holding notice checklist for a stake in a listed entity](https://ailawframework.com/precedents/mergers-and-acquisitions-private-equity/substantial-holding-notice-checklist.md) | Checklist | Yellow | A checklist for giving notice when a person begins or ceases to have a substantial holding in a listed body, or moves by 1% or more, including which form to use before and after 4 December 2026. |

Signed-in accounts can read the full text of each one.

## Jurisdiction versions

| Jurisdiction | Level |
| --- | --- |
| [United States](https://ailawframework.com/practice/mergers-and-acquisitions-private-equity/prepare-and-lodge-substantial-holding-notices-for-a-stake-in-a-listed-en/united-states.md) | Red |

*Practice guidance for planning and review. Confirm current primary sources and the requirements of the actual matter. This is general information, not legal advice.*