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  1. Home
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  3. Regulatory

Section 16

M
Marcus Thorne
Last Updated: January 5, 2026
Plain English Definition

Section 16 of the Securities Exchange Act of 1934 governs insider reporting and trading. It requires officers, directors, and 10% beneficial owners to report their transactions and prohibits short-swing profits from round-trip trades within six months.

The Trader's Take

The Signal

Section 16 creates the framework that makes insider trading data transparent and actionable. All Form 3, 4, and 5 filings are required under Section 16(a).

The Noise

The reporting requirements themselves don't create signals—the actual transactions do.

Actionable Insights

  • 1
    All insider transactions you see on the dashboard are required by Section 16(a).
  • 2
    Section 16(b) prevents insiders from quick trading, making their buys more meaningful.
  • 3
    Understanding Section 16 helps you know which insiders must report and when.

Regulatory Context & Context

Section 16 has three main parts: 16(a) requires reporting of transactions, 16(b) requires disgorgement of short-swing profits, and 16(c) prohibits short sales by insiders. This section applies to all companies with securities registered under Section 12 of the Exchange Act.

Common Misconceptions

Section 16 doesn't apply to all shareholders—only officers, directors, and 10% owners.

The six-month rule applies to any round-trip, not just profitable ones.

Frequently Asked Questions

Who is subject to Section 16?

Officers, directors, and any person who owns more than 10% of a class of equity securities of a publicly traded company.

What is Section 16(a)?

The reporting requirement that mandates insiders file Form 3, Form 4, and Form 5 to disclose their transactions.

On This Page

Trader's TakeRegulatory ContextCommon MisconceptionsF.A.Q.

Related Intelligence

SEC Filings
Form 4
Regulatory
Short Swing Profit Rule
Trading Terms
Beneficial Owner

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