Summary
Updated Aug 31, 2026
David John Hartzell files SEC Form 4 reports at HIGHWOODS PROPERTIES, INC. (HIW). 3 SEC Form 4 filings on record going back to 2024, most recently on 18 May 2026. Most recent open-market trade: sold $138K of HIW on 17 September 2025. Lifetime open-market sales: $343K.
Recent Transactions
3Every recent SEC Form 4 transaction David John Hartzell has reported, most recent first.
Trading Pattern
InsiderAlpha's records for David John Hartzell go back to 2024: 3 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 David John Hartzell's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Christopher B. Paisley - $4.48M of EQIX open-market activity in the last 12 months
- Lucibeth Mayberry - $3.99M of CXW open-market activity in the last 12 months
- Jeffrey S. Olson - $3.92M of UE open-market activity in the last 12 months
- DAVIDSON KEMPNER CAPITAL MANAGEMENT LP - $3.79M of AOMR open-market activity in the last 12 months
- William R. Crooker - $3.67M of STAG open-market activity in the last 12 months
- Jeffrey T. Hanson - $3.64M of AHR 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 David John Hartzell?
David John Hartzell is a corporate insider of HIGHWOODS PROPERTIES, INC. (HIW). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did David John Hartzell last file a Form 4?
The most recent primary Form 4 on record is dated 18 May 2026, one of 3 filings going back to 2024.
Has David John Hartzell been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($343K) across all tracked filings.
Where can I see all of David John Hartzell'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 David John Hartzell 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