Summary
Updated Aug 31, 2026
Tara J. Hemmer is EVP & Chief Operating Officer of WASTE MANAGEMENT INC (WM). 7 SEC Form 4 filings on record going back to 2024, most recently on 21 May 2026. Most recent open-market trade: sold $1.17M of WM on 3 March 2026. Lifetime open-market sales: $1.32M.
Recent Transactions
8Every recent SEC Form 4 transaction Tara J. Hemmer has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Tara J. Hemmer go back to 2024: 7 primary Form 4 filings, an average of 2.3 per year. 4 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Tara J. Hemmer 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
- Sean E. Menke - $393K 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 Tara J. Hemmer?
Tara J. Hemmer is a corporate insider, tracked as EVP & Chief Operating Officer of WASTE MANAGEMENT INC (WM). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Tara J. Hemmer last file a Form 4?
The most recent primary Form 4 on record is dated 21 May 2026, one of 7 filings going back to 2024.
Has Tara J. Hemmer been buying or selling stock?
Recorded transactions: 0 open-market purchases and 2 open-market sales ($1.32M) across all tracked filings.
Where can I see all of Tara J. Hemmer'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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