Summary
Updated Aug 30, 2026
John M. Thaeder is Senior Vice President of ARTESIAN RESOURCES CORP (ARTNA). 3 SEC Form 4 filings on record, most recently on 28 August 2025. Most recent open-market trade: sold $33K of ARTNA on 28 August 2025. Lifetime open-market sales: $100K.
Recent Transactions
3Every recent SEC Form 4 transaction John M. Thaeder 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 John M. Thaeder 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.
- Dian C. Taylor - $446K of ARTNA 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 M. Thaeder?
John M. Thaeder is a corporate insider, tracked as Senior Vice President of ARTESIAN RESOURCES CORP (ARTNA). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did John M. Thaeder last file a Form 4?
The most recent primary Form 4 on record is dated 28 August 2025, one of 3 filings going back to 2025.
Has John M. Thaeder been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($100K) across all tracked filings.
Where can I see all of John M. Thaeder'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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