Summary
Updated Aug 31, 2026
David B. Dillon is Director of UNION PACIFIC CORP (UNP). 7 SEC Form 4 filings on record going back to 2024, most recently on 2 April 2026.
Recent Transactions
2Every recent SEC Form 4 transaction David B. Dillon 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 David B. Dillon 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.
- Kenyatta G. Rocker - $7.44M of UNP open-market activity in the last 12 months
- Zoe L. Dickson - $6.62M of MMM open-market activity in the last 12 months
- Mark W. Murphy - $3.17M of MMM open-market activity in the last 12 months
- John Patrick Banovetz - $1.34M of MMM open-market activity in the last 12 months
- Kevin H. Rhodes - $1.31M of MMM open-market activity in the last 12 months
- Eric J. Gehringer - $1.26M of UNP 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 B. Dillon?
David B. Dillon is a corporate insider, tracked as Director of UNION PACIFIC CORP (UNP). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did David B. Dillon last file a Form 4?
The most recent primary Form 4 on record is dated 2 April 2026, one of 7 filings going back to 2024.
Where can I see all of David B. Dillon'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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