Summary
Updated Aug 31, 2026
Sean P. Leuba is SVP, GC & Secretary of Mayville Engineering Company, Inc. (MEC). 6 SEC Form 4 filings on record going back to 2024, most recently on 7 August 2026. Most recent open-market trade: sold $327K of MEC on 7 August 2026. Lifetime open-market purchases: $23K. Lifetime open-market sales: $503K.
Recent Transactions
9Every recent SEC Form 4 transaction Sean P. Leuba has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Sean P. Leuba go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $11K (2 buys totaling $23K). The largest single buy on record is $16K of MEC in 2024. Sales side: 3 recorded sales totaling $503K, so the filing history runs sell-heavy by dollar value. 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 Sean P. Leuba 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.
- Jagadeesh A. Reddy - $2.22M of MEC open-market activity in the last 12 months
- Ryan F. Raber - $770K of MEC open-market activity in the last 12 months
- Craig D. Nichols - $93K of MEC 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 Sean P. Leuba?
Sean P. Leuba is a corporate insider, tracked as SVP, GC & Secretary of Mayville Engineering Company, Inc. (MEC). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Sean P. Leuba submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Sean P. Leuba been buying or selling stock?
Recorded transactions: 2 open-market purchases ($23K) and 3 open-market sales ($503K) across all tracked filings.
Where can I see all of Sean P. Leuba'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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