A beneficial-ownership report generally used when a person crosses 5% of a covered equity class and is not eligible to report on Schedule 13G.
Definition
Schedule 13D discloses beneficial ownership of more than 5% of a covered class, including the reporting persons, source and amount of funds, purpose of the transaction, contracts or arrangements, and holdings. The current initial deadline is five business days after the acquisition that triggers reporting.
Schedule 13D is a current beneficial-ownership report, not a generic activist alert. It generally applies after a person acquires more than 5% of a covered equity class and cannot report on Schedule 13G; the filing's items and amendments establish the disclosed purpose and ownership structure.
Current Deadline and Core Items
The initial Schedule 13D deadline is five business days after the triggering acquisition. Material changes generally require an amendment within two business days. These current deadlines replaced the older ten-day framework still repeated by many summaries.
Item 3 describes the source and amount of funds; Item 4 describes purpose and possible plans; Item 5 reports beneficial ownership and transactions; Item 6 covers contracts and arrangements. Reading only the cover-page percentage misses most of the filing's analytical value.
How It Connects to Form 4
The Schedule 13D threshold is more than 5% of a covered class. Section 16's beneficial-owner threshold is more than 10% of a registered equity class. A person can therefore file Schedule 13D without being a Section 16 ten-percent owner, or can become subject to both regimes when the applicable tests are met.
Use reporting-person CIKs, issuer CIK, class title, group members, voting and dispositive power, and later amendments to connect a 13D position with Form 3 or Form 4 records. Name matching alone is not enough for complex entities.
Common Analytical Errors
Error 1: using the obsolete ten-day deadline. The current initial deadline is five business days.
Error 2: calling every 13D an activist campaign. Item 4 supplies the disclosed purpose; it may be limited or change later.
Error 3: treating beneficial ownership as one person's direct holdings. Groups, controlled entities, derivatives, and shared voting power require review.
Error 4: ignoring amendments. Later 13D/A filings can materially alter holdings, purpose, agreements, or group composition.
Schedule 13D Reading Map
| Section | Question Answered | Dataset Use |
|---|---|---|
| Cover page | Who reports and how much? | Normalize filer CIKs, class, voting power, dispositive power, and percentage. |
| Item 3 | How was the position funded? | Preserve source-of-funds language rather than inferring financing. |
| Item 4 | What purpose or plans are disclosed? | Classify stated intentions and retain the original text and amendment history. |
| Items 5–6 | What changed and what agreements exist? | Connect transactions, group members, contracts, and later ownership reports. |
Primary Sources & Filing References
- SEC: Modernization of Beneficial Ownership Reporting
Primary rule page for current Schedule 13D and 13G deadlines, amendments, derivatives, and structured data.
- SEC: File Schedule 13D or 13G
Official filing guide and links to Regulation 13D-G and schedule instructions.
Why it matters for Whale Tracking
The filing reveals ownership structure and stated plans that may include engagement with management, board changes, capital allocation proposals, transactions, or no present plan. It should be read item by item rather than treated as automatic evidence of activism or a future price move.
Technical Nuance
Material changes generally require an amendment within two business days. Group formation, derivatives, voting power, dispositive power, exemptions, and eligibility for Schedule 13G can materially affect the analysis. A 5% filing threshold is distinct from the Section 16 more-than-10% threshold.
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Real-World Example
"A useful review compares Item 4's stated purpose, Item 5's beneficial-ownership table, Item 6's agreements, filing-person CIKs, and later 13D amendments before connecting the position to any Form 4 activity."
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