Summary
Updated Aug 30, 2026
Mark J. Bolus is Director of COMMUNITY FINANCIAL SYSTEM, INC. (CBU). 3 SEC Form 4 filings on record going back to 2024, most recently on 29 June 2026. Most recent open-market trade: sold $817K of CBU on 29 June 2026. Lifetime open-market sales: $1.10M.
Recent Transactions
5Every recent SEC Form 4 transaction Mark J. Bolus has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark J. Bolus 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.
- John F. Whipple - $277K of CBU open-market activity in the last 12 months
- Eric Stickels - $257K of CBU open-market activity in the last 12 months
- Sally A. Steele - $256K of CBU open-market activity in the last 12 months
- Brenda M. Hall - $30K of CBU open-market activity in the last 12 months
- John A. Vaccaro - $20K of CBU 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 J. Bolus?
Mark J. Bolus is a corporate insider, tracked as Director of COMMUNITY FINANCIAL SYSTEM, INC. (CBU). InsiderAlpha holds 3 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 Mark J. Bolus submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Mark J. Bolus been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($1.10M) across all tracked filings.
Where can I see all of Mark J. Bolus'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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