SEC Filing Evidence for Billionaire Stock Ownership
13 Reviewed Ownership Relationships Required Six Different Evidence Patterns; No Single Filing Type Meant the Same Thing
By Lee BaileyPublished September 11, 2026Ownership evidence through September 6, 2026SEC methodology reviewed September 11, 2026Version 1.013 reviewed relationships · 6 source patterns
Key findings
No single SEC filing type meant the same thing across the 13 reviewed ownership relationships
The reviewed 13-relationship dataset needed six distinct source patterns. Form 4 was the most common source family, but four Form-4-only relationships remained explicitly partial. Initial ownership, transaction reporting, class-level beneficial ownership, issuer proxy context and later filing-history continuity answer different questions.
13reviewed person-company relationships
The same 13 relationships used in the published public-equity positions study.
6distinct source patterns
From one-source Form 3 rows to multi-source combinations.
4relationships using more than one source family
Meta, Alphabet, Berkshire Hathaway and Canadian National Railway.
Source-family counts overlap. A filing family's presence is evidence context, not universal authority for every ownership claim.
How often each source family appeared
These are relationship counts, not filing counts and not a quality score. A relationship can appear in more than one bar, so the bars intentionally sum to more than 13.
Relationships using each source family
Overlapping counts across the reviewed 13-relationship sample.
Form 47
Schedule 13D/G4
Form 33
Proxy beneficial-ownership table2
SEC filing-history metadata1
Form 5 is relevant to Section 16 reporting, but it did not appear in the reviewed source set and is therefore not an observed bar.
Source family
Relationships
What the source is for
Boundary in this study
Form 3
3
Section 16 initial statement of beneficial ownership when a reporting person becomes an insider.
Useful for the initial ownership position disclosed at the insider event date. It is not, by itself, an ongoing current-position or transaction-history certification.
Form 4
7
Section 16 statement of changes in beneficial ownership, generally reporting insider transactions and security-specific post-transaction balances.
A Form 4 can support the transaction and reported balance it actually contains. One filing does not prove that every security, holder relationship, historical conversion, or later position has been reconstructed.
Schedule 13D/G
4
Beneficial-ownership reporting under Exchange Act Sections 13(d) and 13(g) for covered holders of more than five percent of a registered equity class, subject to the applicable filing basis and rules.
The denominator is a security class, and voting/dispositive power, group treatment, disclaimers, and filing eligibility matter. A Schedule 13 percentage is not automatically a companywide economic-ownership percentage.
Proxy beneficial-ownership table
2
Issuer disclosure of security ownership of certain beneficial owners and management under Item 403 and related proxy rules.
Issuer tables can add class, voting-power, and denominator context, but their dates and person-specific 60-day acquisition rules must remain attached to the observation.
SEC filing-history metadata
1
SEC submissions metadata can show whether later filings exist in a reviewed filing family.
Filing-history metadata can support a continuity review but cannot re-observe an exact share count that no later filing states.
The six evidence patterns across all 13 relationships
Each row keeps the same person/company pair, observation date, evidence scope, and underlying SEC sources as the public-equity positions study. This page classifies how those sources support the ownership claim; it does not broaden the claim or silently add new filings.
The reviewed Meta position combines a later Form 4 security position with the issuer proxy's beneficial-ownership and total-voting-power context. Neither source is silently substituted for the other.
The reviewed Alphabet position combines a Form 4 security position with the issuer proxy's Class B ownership and total-voting-power context while preserving the separate Class A, B, and C security identities.
Tesla's reviewed Schedule 13G supplies class-level beneficial-ownership evidence and explicit disclaimer/control treatment for restricted shares; the study preserves those exclusions rather than treating every disclosed share as an included economic holding.
Berkshire's reviewed position uses a Form 4 for security-level holdings and a same-day Schedule 13D amendment for class-ownership and total-voting-power context.
The exact Canadian National Railway share count comes from the 2024 Schedule 13G/A. SEC submissions history was reviewed later only for continuity; it does not re-observe the exact share count in 2026.
The Form 4 supports the reported Yum China transaction/balance for the disclosed security. The observation is deliberately labeled partial rather than treating one incremental filing as a whole-position history.
The Form 3 is an initial beneficial-ownership statement and supports the reviewed Amer Sports starting position at the insider event date. It does not certify later continuity.
The Form 4 supports the reported Proto Labs transaction/balance for the disclosed security. The row remains partial because the release does not reconstruct a complete historical position chain.
The Form 4 supports the reported Hyatt Class A transaction/balance. It is not promoted into a claim that every Pritzker-related Hyatt ownership form has been reconstructed.
The Form 3 supports the reviewed Alibaba initial beneficial-ownership position at the insider event date. It is not an assertion of later unchanged ownership.
The Form 3 supports the reviewed Alibaba initial beneficial-ownership position at the insider event date. It is not an assertion of later unchanged ownership.
The Form 4 supports the reported Smithfield transaction/balance for the disclosed security. The release does not infer a complete pre- or post-filing ownership history.
The reviewed cohort used 6 distinct source patterns across 13 person-company relationships.
Form 3 supported three initial beneficial-ownership observations at their insider event dates.
Form 4 was the most common source family, but four Form-4-only relationships remained partial incremental observations.
Schedule 13 evidence carried class-level beneficial-ownership semantics that must stay attached to security class, voting/dispositive power, group and disclaimer context.
Issuer proxy tables supplied additional beneficial-ownership and voting-power context for the Meta and Alphabet rows.
Unsupported inferences
The selected 13 relationships are not representative of all billionaires, issuers or SEC filings.
A source family is not inherently “stronger” than another; support depends on the claim, security, ownership form, dates, footnotes and denominator.
An observed Form 4 does not prove a complete transaction history or current whole-position reconstruction.
A Schedule 13 class percentage is not automatically a companywide economic-ownership percentage.
Filing-history metadata can support a continuity review without re-observing an exact share count.
This study does not calculate market value, net worth or transaction-level ownership change.
Keep each profile/company pair, position date and evidence scope unchanged from that reviewed dataset.
Classify the SEC source families used for each row: Form 3, Form 4, Schedule 13D/G, issuer proxy beneficial-ownership tables and SEC filing-history metadata.
Count a relationship once per source family used. Family counts therefore overlap; they do not partition the 13-row sample.
Use current SEC materials to describe the reporting purpose and boundaries of each source family, without letting general form descriptions override the actual reviewed filing.
Do not infer an absent filing family, reconstruct an unreviewed transaction history, or score evidence quality.
Research snapshot: September 6, 2026. SEC methodology guidance reviewed: September 11, 2026.
Limitations
The 13 relationships are the exact reviewed publication cohort, not a statistically representative sample of billionaires, issuers, or SEC ownership filings.
Source-family counts overlap. A relationship using Form 4 plus a proxy statement is counted in both source families but remains one relationship.
A source family's official reporting purpose does not automatically authorize every possible ownership claim from every filing. The actual filing text, security identity, ownership form, footnotes, dates, and issuer-specific denominator rules still control.
The study classifies the reviewed evidence; it does not perform a new EDGAR completeness search and does not infer that an unlisted source family was absent from the issuer's full filing history.
No transaction-level ownership-change series is reconstructed. Historical legal-security identity, split/conversion handling, ownership-form continuity, and transaction semantics remain separate publication gates.
Form 5 is relevant to Section 16 reporting but did not appear in the reviewed source set, so it is discussed as context rather than counted as an observed source family.
The SEC's February 2013 investor bulletin is educational material rather than a legal interpretation or statement of SEC policy; current filing-specific conclusions continue to rely on the reviewed filings and current SEC rules/guidance.
Official SEC methodology sources
These sources explain the reporting frameworks. The relationship-level claims above still come from the specific SEC filings linked in the evidence table.
When citing a source-family count, say that counts overlap and refer to the reviewed 13-relationship sample. Do not relabel the chart as a ranking of SEC filing quality.
Lee Bailey. “SEC Filing Evidence for Billionaire Stock Ownership: 13 Reviewed Ownership Relationships Required Six Different Evidence Patterns; No Single Filing Type Meant the Same Thing.” Grizzly Bulls, September 11, 2026. Version 1.0. Data snapshot September 6, 2026. https://grizzlybulls.com/research/sec-ownership-evidence
Form 3, Form 4, Schedule 13 and proxy ownership tables answer different questions. Grizzly Bulls does not treat the mere existence of one filing family as proof of complete current ownership.