Summary
Updated Aug 31, 2026
Marcel Dalby is SVP Bus Optimiz & Collection of WASTE MANAGEMENT INC (WM). 1 SEC Form 4 filing on record, dated 21 May 2026.
Recent Transactions
1Every recent SEC Form 4 transaction Marcel Dalby 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 Marcel Dalby 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.
- James C. Fish Jr. - $8.47M of WM open-market activity in the last 12 months
- Michael J. Watson - $4.32M of WM open-market activity in the last 12 months
- John J. Morris - $3.13M of WM open-market activity in the last 12 months
- Donald J. Smith - $3.00M of WM open-market activity in the last 12 months
- Rafael Carrasco - $2.76M of WM open-market activity in the last 12 months
- Tara J. Hemmer - $1.32M of WM 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 Marcel Dalby?
Marcel Dalby is a corporate insider, tracked as SVP Bus Optimiz & Collection of WASTE MANAGEMENT INC (WM). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Marcel Dalby last file a Form 4?
The only primary Form 4 on record is dated 21 May 2026.
Where can I see all of Marcel Dalby'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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