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SEC Filings Reference

A comprehensive explanation of SEC filings, their purposes, and filing requirements.

Insider Transaction Forms (Section 16)

Required filings for company insiders reporting their trading activity

Form 3Low Signal

Initial Statement of Beneficial Ownership

10 days

The initial disclosure filed when a person becomes an 'insider' of a public company. Reports all equity securities beneficially owned at the time of becoming a director, officer, or 10% owner.

Who must file

  • • Directors
  • • Officers (CEO, CFO, COO, etc.)
  • • 10%+ beneficial owners

What it contains

  • • Reporting person's identity
  • • All securities owned
  • • Nature of ownership
Form 4High Signal

Statement of Changes in Beneficial Ownership

2 business days

The primary disclosure form for insider transactions. Reports any change in beneficial ownership of company securities including purchases, sales, grants, and option exercises.

Most Important for Tracking Insider Activity

Form 4 filings provide real-time visibility into insider trading. A cluster of insider purchases often signals management confidence.

Form 4/AMedium Signal

Amendment to Form 4

As soon as discovered

A correction or amendment to a previously filed Form 4. Filed when there are errors in price, share count, or missing transactions. Form 4/A supersedes the original filing.

Form 5Low Signal

Annual Statement of Beneficial Ownership

45 days after FY end

An annual report of transactions that were not required to be reported on Form 4, or transactions that should have been reported but were missed. Often contains stale information.

Transaction Codes (Form 4)

Codes used to identify the type of insider transaction

CodeDescription
POpen market or private purchase
SOpen market or private sale
AGrant or award
MExercise or conversion of derivative
GGift
FPayment of exercise price or tax with securities
DSale or transfer to issuer
CConversion of derivative security
WAcquisition or disposition by will or inheritance
JOther acquisition or disposition
KEquity swap or similar instrument
UDisposition due to tender of shares

P (Purchase) and S (Sale) are the most significant codes for analyzing insider sentiment. A (Award) and M (Exercise) typically represent compensation-related transactions.

Corporate Disclosure Forms

Regular financial reporting requirements for public companies

Form 10-K

Annual Report

60-90 days

Comprehensive annual report providing a complete overview of a company's business and financial condition. Includes audited financial statements, MD&A, risk factors, and executive compensation details.

Form 10-Q

Quarterly Report

40-45 days

Quarterly update on a company's financial condition with unaudited financial statements. Filed for Q1, Q2, and Q3 (Q4 is covered by the 10-K).

Form 8-K

Current Report

4 business days

Report of significant events that shareholders should know about between regular quarterly and annual reports. Covers material agreements, acquisitions, executive changes, and more.

Ownership & Proxy Forms

Disclosures for significant shareholders and shareholder meetings

Schedule 13DHigh Signal

Beneficial Ownership Report

10 days

Required when a person or group acquires more than 5% of a company's voting securities with intent to influence control. Must disclose identity, funding source, and purpose of the transaction.

Schedule 13GMedium Signal

Beneficial Ownership Report (Short Form)

45 days (QIIs)

Simplified version of Schedule 13D for passive investors with no intent to influence control. Available to qualified institutional investors and passive investors under 20%.

Form 13FMedium Signal

Quarterly Holdings Report

45 days

Quarterly disclosure of equity holdings by institutional investment managers with over $100M in qualifying assets. Reveals positions of hedge funds, mutual funds, and other institutions.

Filing Deadlines Quick Reference

Summary of filing deadlines for common SEC forms

FormFiling Deadline
Form 310 days of becoming insider
Form 42 business days of transaction
Form 545 days after fiscal year end
Form 8-K4 business days of event
Form 10-Q40-45 days after quarter end
Form 10-K60-90 days after fiscal year end
Schedule 13D10 days of crossing 5%
Schedule 13G45 days after year end (QIIs)
Form 13F45 days after quarter end

Filer Categories

Different filing deadlines based on company size

CategoryPublic Float10-K10-Q
Large Accelerated≥ $700M60 days40 days
Accelerated$75M - $700M75 days40 days
Non-Accelerated< $75M90 days45 days
Smaller Reporting< $250M90 days45 days

Public float is the market value of a company's outstanding shares held by non-affiliates. Larger companies have shorter filing deadlines.

Additional Resources