Summary
Updated Aug 31, 2026
John A. Koutsos is Director of ENTERPRISE BANCORP INC /MA/ (EBTC). 1 SEC Form 4 filing on record, dated 1 July 2025.
Recent Transactions
1Every recent SEC Form 4 transaction John A. Koutsos has reported, most recent first.
Trading Pattern
InsiderAlpha's records for John A. Koutsos go back to 2025: 1 primary Form 4 filing, an average of 0.5 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 Sector
No other insider has filed at John A. Koutsos's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Mark Robyn Jones Descendants Trust 2014 - $26.01M of GSHD open-market activity in the last 12 months
- J. Richard Kushel - $25.08M of BLK open-market activity in the last 12 months
- Heath Tarbert - $24.09M of CRCL open-market activity in the last 12 months
- Mark Lowry Maurer - $23.95M of SNEX open-market activity in the last 12 months
- Paul B. Prager - $23.43M of WULF open-market activity in the last 12 months
- David M. Rubenstein - $23.34M of CG 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 John A. Koutsos?
John A. Koutsos is a corporate insider, tracked as Director of ENTERPRISE BANCORP INC /MA/ (EBTC). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did John A. Koutsos last file a Form 4?
The only primary Form 4 on record is dated 1 July 2025.
Where can I see all of John A. Koutsos'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.
Learn More
Follow John A. Koutsos and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial