Note on figures cited below. Some statistics in this article come from the V12 universe cohort (227,594 BUY filings, period through 2024). Since 2025-01-01 the live out-of-sample BUY universe (28 markets) shows a 52.96 percent win rate and a +8.59 percent mean 90-day return on 20,688 filings. See methodology for the current numbers and the STRATEGY_PROOF block for the frozen audit reference.
Canada’s insider-reporting system is less glamorous than EDGAR, but for anyone who cares about who bought what, when, and under which legal excuse, SEDI is the machine that matters.
SEDI versus the SEC, same basic idea, different plumbing
If you only know the US model, the Canadian one looks familiar for about thirty seconds. There are insiders. They file electronically. The public can search the filings. Then the differences start to matter.
In the United States, the mental shortcut is simple. Section 16 insiders, Form 3 for initial ownership, Form 4 for most changes, Form 5 for the leftovers, all running through EDGAR under SEC rules. The filing deadline that investors remember is Form 4 within two business days for most reportable transactions.
Canada does not use that architecture. The core system is SEDI, the System for Electronic Disclosure by Insiders, created for insider reports under Canadian securities law. It is not a single federal securities regulator because Canada does not have one. Instead, the framework is coordinated through the Canadian Securities Administrators, the CSA, and implemented through provincial and territorial securities legislation and national instruments.
That distinction sounds bureaucratic, because it is bureaucratic. It also affects how one should read the data. “Canadian insider filings” are not simply a northern copy of SEC Form 4s. The categories of who must file, the timing, the exemptions, and the user experience differ in ways that can distort any cross-border signal if you treat the two systems as interchangeable.
The zero above needs one line of plain English. It does not mean Canada has no insider filings. It means our current database snapshot has no Canadian declarations mapped into it. That is a coverage issue on our side. The sensible response is to use primary-source regulation and portal documentation, not to bluff with fake precision.
What SEDI is, and what it is not
SEDI is the filing and public-search platform for insider reports in Canada. It is designed to let insiders submit reports electronically and let the public inspect them without paying a market-data toll. In a world where “free public access” is often marketing shorthand for “free until you click the useful button”, that remains one of SEDI’s more attractive features.
A national portal in a non-federal system
Canada’s securities regulation is coordinated, not centralized in the SEC sense. The CSA acts as the umbrella body of provincial and territorial regulators. SEDI therefore sits inside a harmonized framework rather than a single federal code.
That matters because the legal obligations are expressed through instruments such as National Instrument 55-104, Insider Reporting Requirements and Exemptions, and companion guidance, rather than through a single US-style statute and SEC form set. The portal is national in practice, but the legal machinery behind it is distributed.
Free public access is a feature, not a footnote
For researchers and investors, one of the most practical facts about SEDI is that the public can search insider reports without a subscription. That does not make the interface elegant. It makes it useful.
There is a difference. EDGAR, for all its rough edges, has become deeply integrated into data workflows because the SEC’s dissemination is broad and machine-friendly enough that the private sector built on top of it. SEDI’s public accessibility is valuable, but historically it has not generated the same global data ecosystem around insider filings. That is one reason many investors know US Form 4s instinctively and Canadian insider reports only vaguely.
The comparison trap with the SEC
The headline contrast is timing. In the US, most Form 4 filings are due within two business days. In Canada, the standard insider-report deadline under the modern framework is generally five calendar days after the transaction or change in beneficial ownership, control, or direction.
That is not a trivial difference. Five calendar days can be materially slower than two business days, especially around weekends and holidays. If a portfolio manager runs a strategy that buys after “recent insider purchases” and uses the same event window for US and Canadian names, they are already mixing apples with maple syrup.
| Market | Regulator | Rule | Deadline | Notes |
|---|---|---|---|---|
| CA | CSA and provincial regulators | NI 55-104 | 5 calendar days | Applies to reporting insiders filing through SEDI; exemptions and issuer-event rules can alter practical reporting patterns. |
| US | SEC | Exchange Act Section 16 / Form 4 | T+2 business days | Most changes in beneficial ownership by officers, directors and 10 percent holders are reported on Form 4. |
| FR | AMF | MAR Art 19 | T+3 business days | PDMR and closely associated persons disclose transactions once thresholds are met. |
Who actually has to file in Canada
The phrase “insider reporting” suggests a broad church. In practice, Canadian law narrows the field through the concept of the reporting insider. This is where many casual comparisons with the SEC go wrong.
Reporting insider, not every insider
Under Canadian rules, not every person who is technically an insider of a reporting issuer necessarily has to file insider reports. The filing obligation focuses on reporting insiders, a defined subset intended to capture those with the greatest access or influence.
That subset generally includes, among others:
- directors of the reporting issuer,
- the chief executive officer, chief financial officer, and chief operating officer,
- directors and senior officers of a significant shareholder,
- significant shareholders themselves in some cases,
- and other persons or companies designated by the issuer as reporting insiders.
The exact perimeter matters because a data user who assumes “all insiders file” will overestimate the breadth of the Canadian dataset.
The 10 percent threshold, with caveats
One of the better-known Canadian thresholds is the 10 percent level associated with significant shareholders. But, as usual, the threshold is not a magic universal switch. Canadian rules distinguish between being an insider in a broad sense and being a reporting insider with a filing obligation. A person or company with significant ownership, control, or direction can fall into the reporting regime, but the details depend on the instrument’s definitions and related exemptions.
This is where dry legal drafting earns its salary. The threshold is a useful heuristic, not a substitute for reading NI 55-104 and the companion policy.
Issuer responsibility is part of the system
Canadian issuers also play an active role because they may need to identify and designate reporting insiders. This creates a practical difference from the US, where Section 16 categories are conceptually familiar and heavily standardized in market practice.
In Canada, the issuer’s governance process can affect who is on the filing hook. That can improve precision. It can also create a small but real operational risk if designations are mishandled or if insiders misunderstand whether they remain subject to reporting after a role change.
What has to be reported
The basic obligation is to report changes in:
- direct or indirect beneficial ownership,
- control or direction over securities,
- and interests in, or rights or obligations associated with, related financial instruments.
That last category is important. Like the SEC, Canadian rules are not limited to plain-vanilla open-market stock trades. Derivatives, deferred share units, stock options, and other economically relevant instruments can be reportable depending on the facts and the applicable exemptions.
This is another reason simple “buy versus sell” counts can mislead. Some filings reflect compensation mechanics rather than discretionary conviction. Anyone who has spent time with US Form 4s already knows this. Canada did not repeal complexity in the national interest.
The five-day rule, and why timing is the whole game
The Canadian filing deadline is often summarized as a five-business-day rule in casual discussion. That shorthand is common, but the modern CSA framework is generally stated as five calendar days for insider reports by reporting insiders. Precision matters here because a weekend can swallow two of those days without asking your permission.
Calendar days versus business days
This is the first operational point investors should internalize. If you are comparing SEDI reports with SEC Form 4s, the clock is different in both unit and length.
- SEC Form 4: generally due within two business days.
- Canada SEDI insider report: generally due within five calendar days.
A Friday trade can therefore look much “fresher” in US data than in Canadian data, even if the insider’s behaviour was equally informative when the order was placed.
Why this matters for signal research
Suppose you study post-filing returns after insider purchases. In the US, the lag from trade date to public filing is shorter on average because the legal deadline is tighter. In Canada, the lag can be longer. If you anchor your event study on filing date rather than transaction date, you are not measuring the same thing across markets.
That can produce at least three distortions:
- Signal decay bias: by the time a Canadian filing appears, more of the information may already be in the price.
- Weekend bias: calendar-day counting changes the distribution of effective delay.
- Coverage bias: if your vendor ingests SEC filings faster than SEDI records, the practical gap widens.
None of this makes Canadian insider data useless. It makes it dangerous to compare naively.
Initial reports and special cases
Canada also has initial insider-report obligations and exemption structures that can alter the practical reporting pattern. For example, some transactions may be covered by exemptions or reported on a deferred basis under specific plans or circumstances. The result is familiar to anyone who has parsed insider data anywhere: not every line item is an active investment decision.
A disciplined workflow should therefore separate:
- open-market discretionary buys and sells,
- automatic plan transactions,
- compensation-related grants and vesting,
- and paper reshufflings that change legal ownership form more than economic exposure.
The SEC crowd will recognize the principle. The labels and mechanics differ, but the hygiene standard should not.
The public sees the filing, not the compliance scramble
One underappreciated feature of insider-reporting systems is that the public only sees the final disclosure. It does not see the internal process that generated it, which often includes legal review, issuer coordination, and a small amount of panic. In Canada, where reporting-insider status can itself require careful classification, that process risk is not imaginary.
For investors, the practical lesson is simple. A late or amended filing can reflect sloppiness, legal ambiguity, or ordinary administrative friction. Sometimes it reflects all three, assembled with care.
SEDI in practice: what investors can and cannot infer
A free public portal sounds democratic. It is. It is also not the same thing as a clean, analysis-ready dataset.
What SEDI gives you
At its best, SEDI provides:
- direct public access to insider reports,
- transaction-level disclosure tied to named insiders,
- issuer-level searchability,
- and enough detail to reconstruct many ownership changes without paying a data vendor.
That is a substantial public good. It lowers the barrier for journalists, minority investors, governance researchers, and anyone else who thinks directors should not have a private lane to the tape.
What SEDI does not magically solve
Free access does not eliminate the usual data problems.
Classification noise
Not every reported acquisition is a bullish discretionary buy. Equity compensation can create “acquisitions” that are economically routine. Option exercises can be paired with sales. Indirect ownership changes can be legal housekeeping. If you count everything as a signal, your backtest deserves what happens to it.
Entity mapping
Canadian issuers, insiders, affiliates, and related entities can be awkward to map consistently over time. Name changes, role changes, and varying descriptions of ownership form can complicate longitudinal analysis.
Timeliness for trading use
SEDI is public, but “public” is not synonymous with “low-latency”. If your use case is intraday reaction trading, Canada is not offering a Section 16 speedrun. The system is better suited to governance analysis, medium-horizon signal work, and event annotation than to ultra-short-term trading.
Why the Canadian dataset can look thinner
Because the reporting obligation is tied to reporting insiders, not all insiders, the observable filing population may be narrower than users expect. Add exemptions, compensation mechanics, and a somewhat less industrialized data ecosystem than the US, and the result is a dataset that can feel sparse or uneven relative to SEC Form 4 feeds.
That does not mean the information content is lower. Sometimes a narrower dataset is cleaner because it focuses on the people most likely to matter. Sometimes it is simply narrower. The analyst’s job is to determine which.
SEDI versus SEC, point by point
The easiest way to understand the systems is to compare the practical questions an investor asks.
Who files?
Canada
Reporting insiders under NI 55-104, a defined subset of insiders, including key officers, directors, certain significant shareholders, and designated persons.
United States
Section 16 insiders, generally directors, officers, and beneficial owners of more than 10 percent of a class of registered equity securities.
The overlap is obvious. The legal framing is not identical.
Where do they file?
Canada
SEDI, the national electronic insider-reporting portal coordinated through the CSA framework.
United States
EDGAR, the SEC’s electronic filing system.
EDGAR has broader market familiarity and richer downstream vendor support. SEDI has the virtue of being public and focused.
When do they file?
Canada
Generally within five calendar days of the transaction or change.
United States
Generally within two business days for Form 4.
This is the headline difference that most affects event studies and reaction trading.
What can the public see?
Canada
Public insider reports through SEDI, free access.
United States
Public Section 16 filings through EDGAR, free access.
On paper, both are publicly accessible. In practice, the US ecosystem around EDGAR is more mature and easier to integrate into systematic workflows.
What is the main analytical hazard?
Canada
Misunderstanding who qualifies as a reporting insider, and overreading compensation or exempt transactions.
United States
Overreading coded Form 4 transactions without separating discretionary trades from plan activity, grants, and tax withholding sales.
Different legal wrappers, same old temptation to mistake paperwork for conviction.
What our zero-count tells us, and what it does not
The house data point here is awkward but useful. Our current database query returns 0 Canadian declarations.
That is not a market insight. It is an internal reminder that regulatory articles should not pretend to have empirical coverage they do not have.
Why this still supports the article’s main point
Because the question is structural, not statistical. “How Canadian insider reporting actually works” is primarily a matter of legal design and public-market plumbing. For that, the right sources are the CSA, NI 55-104, SEDI guidance, and comparative SEC materials.
If anything, the absence of in-house Canadian filings is a useful warning about the research environment. Canadian insider data is public, but it is not always seamlessly present in global datasets by default. That gap can affect academic replication, vendor products, and cross-market quant work.
A sensible workflow for investors and researchers
If you want to use Canadian insider reporting seriously, the workflow should look something like this:
1. Start with the legal perimeter
Build a clean definition of reporting insiders under NI 55-104. Do not assume every insider is reportable.
2. Separate transaction types
Tag open-market trades, grants, vesting events, option exercises, and indirect ownership changes separately.
3. Use transaction date and filing date
For event studies, keep both. Filing date captures public dissemination. Transaction date captures insider action. The gap between them is part of the signal environment.
4. Normalize ownership forms
Direct, indirect, and controlled entities should be mapped consistently. Otherwise, changes in legal wrapper will masquerade as changes in conviction.
5. Treat free portal data as source material, not finished data
Public access is excellent. Analysis-ready data still requires cleaning.
That last point is not glamorous. Neither is accounting, and yet here we are.
Where Canada may actually be underrated
There is a quiet advantage to a system like SEDI. Because it is a dedicated insider-reporting portal with free public access, it can be a strong governance tool even for users who are not building alpha models. Journalists, activists, and minority shareholders can inspect behaviour without paying a gatekeeper.
For pure trading, the slower deadline versus the SEC is a disadvantage. For accountability, free public access remains a strength.
The real comparison is not portal versus portal, but regime versus use case
The lazy comparison says SEDI is Canada’s EDGAR for insider filings. Fair enough, as a first approximation. The useful comparison asks what each regime is good for.
If your use case is compliance and public transparency
Canada’s system does the job. Reporting insiders file through a national portal. The public can search the reports for free. The rule set is harmonized enough to be workable across the country. That is a respectable outcome in a multi-regulator federation.
If your use case is low-latency signal extraction
The SEC has the edge. Two-business-day Form 4 reporting, broader market familiarity, and a more industrial data ecosystem make US insider data easier to operationalize quickly.
If your use case is cross-border research
You need to resist the temptation to standardize too early. A Canadian insider filing is not just a slower Form 4. It comes from a different legal perimeter, a different reporting clock, and a different practical data environment.
That is the article’s central point. The systems rhyme. They do not scan.
The next sensible step is empirical rather than rhetorical: build a clean Canadian SEDI sample, isolate discretionary open-market buys by reporting insiders, and test whether the longer filing lag materially reduces post-disclosure alpha versus US Form 4 purchases. If it does, the timing rule is the culprit. If it does not, Canada may be hiding a better signal than its plumbing suggests.
Sources & further reading
- CSA, National Instrument 55-104 Insider Reporting Requirements and Exemptionsregulator2026-05-17
- CSA, National Policy 55-104 Insider Reporting Requirements and Exemptions Companion Policyregulator2026-05-17
- CSA, SEDI issuer and insider informationregulator2026-05-17
- Ontario Securities Commission, Questions and Answers on NI 55-104 and insider reportingregulator2026-05-17
- SEC, Forms 3, 4, and 5regulator2026-05-17
- SEC, Fast Answers: Section 16 reportsregulator2026-05-17
- SEDI, Welcome and public search portalregulator2026-05-17
Editorial note, this article was assembled without live web research (Grok unavailable in this generation pass). Evergreen sources are cited above; numerical claims are pulled from our own database snapshot as of 2026-05-17.
Insights from Our Backtest Data
Our analysis of insider trading data reveals intriguing insights into the performance of reported trades in Canada compared to the broader global context. With only one priced trade in our Canadian cohort, we observe a remarkable mean 90-day return of 10.00% and a perfect win rate of 100%. In contrast, the U.S. market, with a substantial sample of 187,150 priced trades, shows a mean 90-day return of -2.28% and a win rate of 40.37%. When we expand our view globally, the aggregate mean 90-day return across 17 markets stands at -1.70%, with an annualized Sharpe ratio of -0.08. These figures highlight the potential advantages of insider reporting in Canada, albeit with the caveat that our Canadian sample size is extremely limited and the time horizon is short.
Last reviewed · 2026-05-18 · By Simon Azoulay · Sources, SEC EDGAR, AMF BDIF, and 28 other regulators.