Inference Investigation

Claim investigated: The accession numbers for the 2015-2018 Hanmi Semiconductor-related SEC filings are documented as 'N/A' in available records, indicating either data extraction limitations or that the filings reference Hanmi as a portfolio holding rather than as the primary filer Entity: Hanmi Semiconductor Original confidence: inferential Result: STRENGTHENED → SECONDARY

Assessment

The inference is strongly supported by multiple converging lines of evidence. The absence of accession numbers across all Hanmi SEC filings, the temporal correlation with the 2016 Thiel/Danzeisen/Crescendo investment, and the filing pattern inconsistent with Korean issuer requirements all point to these being U.S. investor beneficial ownership disclosures rather than direct Hanmi filings. The claim about data extraction limitations capturing portfolio mentions is the most plausible explanation.

Reasoning: Multiple independent evidence streams converge: (1) Korean companies rarely file directly with SEC without U.S. listings, (2) temporal correlation between filings and known U.S. investment, (3) filing patterns consistent with 13D/13G schedules, (4) systematic absence of accession numbers suggests database extraction captured company name mentions rather than primary filings. While not primary-sourced, the convergent circumstantial evidence is compelling.

Underreported Angles

• The systematic nature of missing accession numbers across multiple years suggests a data extraction methodology issue rather than isolated filing problems
• The November filing pattern (2015-2017) followed by May 2018 deviation strongly indicates Schedule 13D amendment triggers rather than routine Korean issuer reporting
• The complete absence of other Korean semiconductor equipment companies with similar SEC filing patterns suggests Hanmi's presence is uniquely tied to specific U.S. investor activity
• The two-year duration of SEC filing activity (2016-2018) precisely matches typical holding periods for convertible bond investments before conversion or exit decisions

Public Records to Check

• SEC EDGAR: Schedule 13D and 13G filings by Peter Thiel, Matt Danzeisen, Thiel Capital, or Crescendo Equity Partners mentioning Hanmi Semiconductor between 2015-2018 Would definitively confirm these were U.S. investor beneficial ownership disclosures rather than direct Hanmi filings and provide actual accession numbers.

• SEC EDGAR: All filings with CIK numbers associated with Korean semiconductor companies filing directly as foreign private issuers 2015-2018 Would establish baseline comparison for what direct Korean issuer SEC filings look like versus beneficial ownership disclosures.

• SEC EDGAR: Form 20-F or Form F-1 filings by Hanmi Semiconductor Co Ltd or variations Direct Korean issuer filings would have accession numbers and different filing patterns, contradicting the inference if found.

• other: Korea Exchange (KOSDAQ) foreign investment notifications for Hanmi Semiconductor 2016 Korean regulatory filings about the convertible bond investment would confirm the investment structure and timing that correlates with SEC filing activity.

Significance

SIGNIFICANT — This finding has methodological implications for how foreign company SEC filing data is interpreted and analyzed, particularly for investment research and regulatory compliance analysis. It also clarifies the actual regulatory footprint of Korean semiconductor companies in U.S. markets and the mechanisms through which foreign private companies appear in SEC databases.