Five ways people misread insider filings

Insider filings are one of the few genuinely public windows into what the people closest to a company are doing with their own money. The SEC requires officers, directors and holders of more than 10 per cent of a class of a company's securities to report their transactions, and those reports are free to read.

The errors are rarely in the data. They are in the reading. People take a headline, skip the code that says what the transaction was, skip the date that says when it happened, and act on something quite different from what they think they saw.

Copying the trade without the context around it

An insider buying shares is one fact about one person. You do not know their time frame, their tax position, what else they hold, or whether this is a routine purchase they make every year at the same time. The filing does not explain motive.

They may be happy to hold for a decade through a drawdown that would end your position in a week. Copying the trade copies the entry and nothing else, and the entry is the least important part of anyone's decision.

The useful move is to treat the filing as a prompt to look, not a conclusion. It tells you where to spend your attention, and what you do next depends on things the insider knows nothing about. Our explainer on what insider buying means goes through how much weight the signal can reasonably carry.

Skipping the transaction code

This is the most common error, and it turns routine compensation into news.

Every transaction on a Form 4 carries a code, defined in the SEC's own instructions, and a handful cover most of what you will see. P is an open market or private purchase. S is a sale. A is a grant, award or other acquisition from the company. M is the exercise or conversion of a derivative security such as an option. F is the payment of an exercise price or tax liability by delivering or withholding securities. G is a bona fide gift, which the SEC's 2022 amendments require to be reported on Form 4 rather than deferred.

The difference matters. A code A grant means a committee awarded someone shares, which says nothing about their view of the price. A code M followed by a code S on the same day is an option exercise and sale, which is a compensation event rather than a change of heart. Only a code P is the thing most people picture when they read the word "buying": someone choosing to spend their own money at the market price. Screens that group all acquisitions together will show you a wave of insider buying that is mostly paperwork, which is why what stocks insiders are buying is only a sensible question once the codes are filtered.

Reading the dollar figure without the holding behind it

A large purchase by someone who owns very little is a different event from the same purchase by someone with a substantial holding, and the dollar figure alone cannot tell you which one you are looking at.

Form 4 reports the number of securities beneficially owned following each reported transaction, so the proportional change is right there on the filing. A purchase that lifts a holding by a meaningful share of what the person already owned is a different statement from one that rounds their position up slightly. The same applies to sales, where trimming a fraction of a large holding and a near complete exit can look identical in dollars.

Cluster matters too. Several officers and directors filing purchases in the same window, independently, is a more interesting pattern than one large figure.

Forgetting the delay, then chasing the move

Insider data is always history. The SEC requires a Form 4 to be filed before the end of the second business day following the day the transaction was executed, and certain exempt or previously unreported transactions can land on a Form 5 instead, which is generally due no later than 45 days after the company's fiscal year end. Congressional disclosures run slower again. Under the STOCK Act, the House Committee on Ethics requires covered transactions over US$1,000 to be reported within 30 days of the member being made aware of them, and no later than 45 days after the transaction.

By the time a filing reaches your screen the market has had at least a couple of days with it, and often much longer. That does not make the information useless. It does mean the price you can trade at is not the price the insider paid.

Chasing is what happens next. Something appears in a feed, the price has already moved, and the trade gets taken anyway at a worse level with more distance to any sensible exit. That is a different trade with different risk, taken for emotional reasons. If a setup only made sense at the price it was at two days ago, the honest answer is that you missed it.

Treating every sale as a warning

Buying and selling are not symmetrical. There are few good reasons to buy more of your own company and many ordinary reasons to sell: a house, a divorce, a tax bill, diversifying a net worth that is dangerously concentrated in one employer.

The timing is often not the insider's choice either. Since the SEC's 2022 amendments to Rule 10b5-1, Form 4 carries a checkbox indicating that a transaction was made under a trading plan intended to satisfy Rule 10b5-1(c). Directors and officers using those plans face a cooling off period of the later of 90 days after adopting or modifying the plan or two business days after the company discloses its quarterly results, capped at 120 days. A sale flagged that way was scheduled well before it executed, by someone with no say in the timing. Reading it as a reaction to this week's news is reading it backwards.

Sales are worth noticing when the pattern breaks: an insider who has never sold, selling outside a plan, in size, against their own history. That is a question, not an answer.

How InsiderPulse handles this

InsiderPulse shows the transaction code, the transaction date and the filing date together, so the difference between a purchase, a grant and a tax withholding is visible rather than buried. Insiders To Follow and the class boards show filings alongside options activity, dark pool and volume data and news. Insider filings are one of several inputs to the 0 to 100 score, explained in how the score works. Ask Pulsey cites its sources so you can open the underlying filing and read it yourself, which is always the point.

InsiderPulse is a data tool. Nothing on this page is financial advice.