Summary
Updated Aug 31, 2026
Mark Blaufuss is Director of Blue Bird Corp (BLBD). 1 SEC Form 4 filing on record, dated 2 April 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Mark Blaufuss has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mark Blaufuss go back to 2026: 1 primary Form 4 filing, an average of 1.0 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 Mark Blaufuss 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.
- Phil Horlock - $1.56M of BLBD open-market activity in the last 12 months
- Razvan Radulescu - $625K of BLBD open-market activity in the last 12 months
- Jeffrey Scott Sanfrey - $304K of BLBD open-market activity in the last 12 months
- Daniel Mark Thau - $62K of BLBD 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 Mark Blaufuss?
Mark Blaufuss is a corporate insider, tracked as Director of Blue Bird Corp (BLBD). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Mark Blaufuss last file a Form 4?
The only primary Form 4 on record is dated 2 April 2026.
Where can I see all of Mark Blaufuss'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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