Goblin House
Claim investigated: There is an unresolved discrepancy in sources regarding Danzeisen's pre-Thiel Capital employment: the entity description states 'BlackRock VP and Portfolio Manager' while established fact #31 states 'Blackstone Group' - these are different companies requiring clarification Entity: Matt Danzeisen Original confidence: inferential Result: CONFIRMED → SECONDARY
This inferential claim identifies a significant factual discrepancy that undermines source reliability. The entity description states 'BlackRock VP and Portfolio Manager' while established fact #31 references 'Blackstone Group' - these are entirely different companies (BlackRock is a public asset manager, Blackstone is a private equity firm) representing fundamentally different career backgrounds that would influence Danzeisen's qualifications for his subsequent Thiel Capital role.
Reasoning: The discrepancy is documented in primary sources (entity description vs established facts) and represents a material factual contradiction requiring resolution. The distinction between BlackRock and Blackstone is not a minor clerical error but indicates different professional specializations that bear on Danzeisen's investment background.
SEC EDGAR: Search Form 4, 5, and 3 filings for 'Matthew Danzeisen' or 'Matt Danzeisen' during 2006-2008 period to identify employer disclosures
SEC insider trading forms require disclosure of current employer, which would definitively establish whether Danzeisen worked at BlackRock or Blackstone during the pre-2008 period
SEC EDGAR: Search investment adviser registration forms (ADV) for BlackRock and Blackstone during 2006-2008 for employee disclosures mentioning Danzeisen
Form ADV requires disclosure of key personnel and could contain employment records establishing which firm employed Danzeisen
other: LinkedIn professional profile search for 'Matt Danzeisen' or 'Matthew Danzeisen' employment history
Professional networking profiles typically contain verified employment history that could resolve the BlackRock vs Blackstone discrepancy
SEC EDGAR: Search Danzeisen's 2020-2021 SEC filings for biographical information or employment history disclosures
SEC forms sometimes require disclosure of relevant professional experience that could clarify his pre-Thiel Capital employment
SIGNIFICANT — This factual contradiction undermines the reliability of biographical information about a key figure in Peter Thiel's business network. The distinction between BlackRock (public markets) and Blackstone (private equity) represents fundamentally different investment backgrounds that would materially affect understanding of Danzeisen's qualifications for his role at Thiel Capital and his subsequent investment decisions.