Summary
Updated Aug 31, 2026
Yoshiaki Fujimori is Director of Blaize Holdings, Inc. (BZAI). 4 SEC Form 4 filings on record, most recently on 5 December 2025. Most recent open-market trade: sold $310K of BSX on 29 July 2025. Lifetime open-market sales: $310K.
Recent Transactions
4Every recent SEC Form 4 transaction Yoshiaki Fujimori has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Yoshiaki Fujimori go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Yoshiaki Fujimori files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Michael F. Mahoney - $24.04M of BSX open-market activity in the last 12 months
- Joseph Michael Fitzgerald - $15.17M of BSX open-market activity in the last 12 months
- Ellen M. Zane - $2.57M of BSX open-market activity in the last 12 months
- Arthur C. Butcher - $1.76M of BSX open-market activity in the last 12 months
- Harminder Sehmi - $491K of BZAI open-market activity in the last 12 months
- Edward J. Ludwig - $430K of BSX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Yoshiaki Fujimori?
Yoshiaki Fujimori is a corporate insider, tracked as Director of Blaize Holdings, Inc. (BZAI). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Yoshiaki Fujimori last file a Form 4?
The most recent primary Form 4 on record is dated 5 December 2025, one of 4 filings going back to 2025.
Has Yoshiaki Fujimori been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($310K) across all tracked filings.
Where can I see all of Yoshiaki Fujimori's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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