Windows, blackouts, and why a blog cannot clear a trade.

What “insider stock” usually means here

In this series, insider stock means employer equity held by someone who may possess material nonpublic information, or who is listed in an insider trading policy. That can include C-suite, finance, legal, and other employees the company designates. The label is the company’s, not yours to self-assign from a blog.

Trading windows and blackouts

Many public companies open a window after earnings and close it before the next quiet period. Blackouts can also hit around financings, M&A, or other events. Pre-clearance desks exist because a personal view that “the information is already out” is not a defense.

Private-company insiders have a different problem: no public window, and often no liquid market. The constraint is still information and contract, not a Twitter take.

10b5-1 plans, in general terms

A Rule 10b5-1 plan is a written trading arrangement adopted when the person is not aware of material nonpublic information, with cooling-off periods and other conditions that have tightened in recent years. Companies and brokers have templates. The SEC has rules. Your general counsel has opinions.

A 10b5-1 plan can be a way some insiders schedule sales in advance. It can also be adopted badly, modified at the wrong time, or used as theater. This site does not draft one, time one, or tell you to use one.

Form 4 is a public fact

Section 16 officers and directors generally report transactions on Form 4. People screenshot those filings and invent a story. The filing is a disclosure. It is not a signal that you should copy the trade.

If you need to transact, start with the insider policy, pre-clearance, and counsel. Then talk with a tax professional about consequences. Education stops at the vocabulary.