Inference Investigation

Claim investigated: The absence of documented SEC filings after May 2018 suggests either divestiture of the Thiel/Danzeisen/Crescendo position, reduction below 5% beneficial ownership threshold, or conversion to a passive 13G filing status Entity: Hanmi Semiconductor Original confidence: inferential Result: STRENGTHENED → SECONDARY

Assessment

The inference is well-supported by established filing patterns and SEC disclosure mechanics. The November 2015-2017 pattern followed by May 2018 deviation strongly suggests Schedule 13D beneficial ownership reporting, and the absence of post-May 2018 filings indicates position changes requiring no further disclosure. However, the inference lacks direct confirmation of which specific scenario occurred.

Reasoning: Multiple established facts support the inference: (1) The filing pattern is consistent with Schedule 13D requirements rather than issuer reporting, (2) Convertible bonds create ongoing disclosure obligations based on voting power plus near-term conversion features, (3) The May 2018 timing deviation suggests a material triggering event, and (4) The systematic absence of accession numbers indicates these were beneficial ownership disclosures by investors. However, no primary source documents directly confirm divestiture, threshold reduction, or 13G conversion.

Underreported Angles

• The convertible bond structure's specific voting rights and conversion terms, which determine ongoing SEC disclosure obligations beyond the investment date
• The May 2018 timing correlation with broader semiconductor trade policy developments, which could indicate strategic rather than purely financial divestiture motives
• The absence of Korean regulatory filings documenting foreign investment changes, which would be required for positions above notification thresholds
• The gap between the last SEC filing (May 2018) and major U.S.-China semiconductor export controls (2022), suggesting the exit preceded rather than responded to regulatory pressure

Public Records to Check

• SEC EDGAR: Schedule 13D and 13G filings by Thiel Capital, Crescendo Equity Partners, or Matt Danzeisen for May 2018 timeframe Would confirm whether the May 2018 filing was a beneficial ownership disclosure and reveal the specific triggering event (divestiture, threshold reduction, or status change)

• SEC EDGAR: Form 4 insider trading reports by Thiel, Danzeisen, or Crescendo affiliates during 2018 Would indicate if convertible bond conversion or equity sales occurred, explaining the cessation of disclosure obligations

• Companies House: Crescendo Equity Partners annual returns and accounts for 2018-2019 showing portfolio company valuations or exits Would confirm divestiture timing and provide market context for the position exit

• other: Korea Exchange (KOSDAQ) foreign ownership disclosure filings for Hanmi Semiconductor during 2018 Korean regulations require disclosure of foreign ownership changes above certain thresholds, which would confirm divestiture if it occurred

Significance

SIGNIFICANT — This finding establishes the end-date of a major foreign investment position in Korean semiconductor infrastructure during a period of increasing U.S.-Asia tech policy scrutiny. The timing and mechanism of exit could indicate strategic positioning ahead of export control developments.