Summary
Updated Aug 31, 2026
Chester J. Szablak Jr. is EVP - Principal Subsidiary of ENTERPRISE BANCORP INC /MA/ (EBTC). 2 SEC Form 4 filings on record, most recently on 1 July 2025.
Recent Transactions
3Every recent SEC Form 4 transaction Chester J. Szablak Jr. has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Chester J. Szablak Jr. go back to 2025: 2 primary Form 4 filings, 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 Sector
No other insider has filed at Chester J. Szablak Jr.'s companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Tullier Kelly Mahon - $20.90M of V open-market activity in the last 12 months
- Ab Investor - $20.72M of NDAQ open-market activity in the last 12 months
- Anchorage Lending CA, LLC - $20.19M of ABTC open-market activity in the last 12 months
- John M. Pasquesi - $19.97M of ACGL open-market activity in the last 12 months
- Christopher J. Meade - $19.94M of BLK open-market activity in the last 12 months
- James Matthew Darden - $19.92M of GL 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 Chester J. Szablak Jr.?
Chester J. Szablak Jr. is a corporate insider, tracked as EVP - Principal Subsidiary of ENTERPRISE BANCORP INC /MA/ (EBTC). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Chester J. Szablak Jr. last file a Form 4?
The most recent primary Form 4 on record is dated 1 July 2025, one of 2 filings going back to 2025.
Where can I see all of Chester J. Szablak Jr.'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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