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.
