Material Change Reporting

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---
schema: foundry-doc-v1
title: "Material Change Reporting"
slug: about-material-change-reporting
aliases:
  - material-change-press-release-protocol
category: reports
type: topic
content_type: topic
quality: complete
short_description: "The mechanics of material change reporting under NI 51-102 Part 7: what constitutes a material change, the two-step press release plus MCR filing process, and the standard for timely disclosure."
status: active
bcsc_class: public-disclosure-safe
language_protocol: PROSE-TOPIC
last_edited: 2026-07-03
editor: woodfine-editorial
paired_with: about-material-change-reporting.es.md
---

A material change in the business, operations, or affairs of a [[regulated-reporting-entity|reporting issuer]] triggers an
immediate disclosure obligation under Part 7 of National Instrument 51-102. The obligation
is one of the most time-sensitive in the continuous disclosure regime: when a material change
is determined to have occurred, the issuer must act the same day.

## Definition of a material change

NI 51-102 defines a material change as a change in the business, operations, or capital of
the issuer that would reasonably be expected to have a significant effect on the market price
or value of any of the securities of the issuer. The definition encompasses both completed
changes and decisions made by senior management or the board, even where public announcement
has not yet been made.

The materiality standard is objective — measured by likely market impact on a reasonable
investor — rather than subjective management assessment. Canadian securities regulators
have consistently held that the issuer should err on the side of disclosure where
materiality is genuinely uncertain.

## The two-step disclosure process

**Step 1 — [[press-releases|Press release]].** Immediately upon determination that a material change has
occurred, the issuer must issue and file a news release disclosing the nature and substance
of the change. The news release must be filed through a recognized news distribution service
to ensure broad market dissemination. The obligation to issue the press release arises when
a director or senior officer first determines that a material change has occurred — not when
the board formally ratifies the decision.

**Step 2 — Material change report (MCR).** Within 10 days of the press release, the
issuer must file a formal material change report on [[about-filing-systems|SEDAR+]] using Form 51-102F3. The report
must include: the date of the change, a full description of the change, the effects on
the issuer's business and operations, and a statement signed by a director or officer.

### Content requirements for the press release

The material change press release must include:

- A description of the material change in terms sufficient for investors to assess its
  significance
- The date of the change
- Management's assessment of the impact on the issuer's operations or financial condition,
  to the extent reasonably practicable

### Forward-looking statements in the press release

Material change press releases frequently include forward-looking statements about the
expected impact of the change. Under NI 51-102 and the applicable safe harbour provisions,
forward-looking statements must be identified as forward-looking, must identify the material
factors that could cause actual results to differ materially from the forward-looking
statement, and must include the material assumptions applied in making the statement.
Boilerplate cautionary language that does not specifically identify the material assumptions
and risk factors applicable to the particular forward-looking statement does not satisfy the
safe harbour requirements.

## Confidential material change reports

In limited circumstances, an issuer may file an MCR on a confidential basis and request
that the regulator not publish it. This is permitted where immediate disclosure would be
unduly detrimental to the interests of the issuer — for example, where disclosure would
prejudice a pending transaction that has not yet been announced. Confidential treatment is
at the regulator's discretion and is not available routinely. The issuer must re-file a
public MCR as soon as the basis for confidentiality no longer exists.

## Common triggers

Material changes most frequently arise from: significant acquisitions or dispositions,
material debt financing or restructuring, changes in credit facilities, capital raises,
changes in senior management or the board, material litigation outcomes, and regulatory
actions. Changes in financial performance below prior guidance may also constitute material
changes where the deviation is significant.

## See also

- [[about-disclosure-obligations]] — the broader framework of ongoing disclosure
  requirements within which material change reporting sits
- [[about-financial-reporting]] — the periodic financial statement filings that accompany but
  are distinct from material change reports
- [[about-annual-reporting-cycle]] — the framework governing scheduled annual disclosure
- [[about-quarterly-reporting]] — the interim reporting cycle
- [[about-filing-systems]] — the SEDAR+ filing platform