Updated Jul 16, 2026 · Last SEC filing 2026-06-08
WASTE MANAGEMENT INC (WM) has filed 12 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-08. 3 Form 8-K material event filings were reported by WM in the last 90 days. 1 Form 144 notices of proposed sale were filed for WM stock. InsiderAlpha tracks every WM SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000823768 |
|---|
| Form 4 filings (90d) | 12 |
|---|---|
| Form 8-K filings (90d) | 3 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-06-08 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Carrasco Rafael | SVP of Enterprise Strategy | S — Open-market sale | 2.7K | $220.47 | $585K | SEC | |
| Carrasco Rafael | SVP of Enterprise Strategy | M — Option exercise | 2.7K | $126.00 | $335K | SEC | |
| Dalby Marcel | SVP Bus Optimiz & Collection | A — Grant or award | 2.3K | $0.00 | — | SEC | |
| Hemmer Tara J. | EVP & Chief Operating Officer | A — Grant or award | 2.5K | $0.00 | — | SEC | |
| Morris John J | President | F — Tax withholding / forfeiture | 566 | $220.49 | $125K | SEC | |
| Sylvester Maryrose | Director | A — Grant or award | 861 | $220.71 | $190K | SEC | |
| Chinn Bruce E. | Director | A — Grant or award | 861 | $220.71 | $190K | SEC | |
| MAZZARELLA KATHLEEN M | Director | A — Grant or award | 1.3K | $220.71 | $290K | SEC | |
| HOLT VICTORIA M | Director | A — Grant or award | 861 | $220.71 | $190K | SEC | |
| PLUMMER WILLIAM B | Director | A — Grant or award | 861 | $220.71 | $190K | SEC | |
| MENKE SEAN E | Director | A — Grant or award | 861 | $220.71 | $190K | SEC | |
| Gluski Andres | Director | A — Grant or award | 861 | $220.71 | $190K | SEC | |
| Bene Thomas | Director | A — Grant or award | 861 | $220.71 | $190K | SEC | |
| Varkey Johnson | SVP-Chief Information Officer | F — Tax withholding / forfeiture | 192 | $233.94 | $45K | SEC | |
| Morris John J | President & COO | M — Option exercise | 5.5K | $150.12 | $823K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for WASTE MANAGEMENT INC (WM). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Carrasco Rafael | 3 | $1.25M |
| PLUMMER WILLIAM B | 1 | $190K |
| MAZZARELLA KATHLEEN M | 1 | $290K |
| Gluski Andres | 1 | $190K |
| MENKE SEAN E | 1 | $190K |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in WM insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
Open the live WM dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.