Tara J. Hemmer is VP at WASTE MANAGEMENT INC (WM). They have made 12 open-market trades across 1 company since 2021, most recently 2026-05-20.
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| WM | 81,461 | $18.5M |
Shares reported on the most recent Form 4, priced at the 2026-05-21 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WM | SELL | 2026-03-02 | 2026-03-03 | $241.83 | $1.2M | -1.3% | -2.7% | -12.1% |
| WM | SELL · 10b5-1 | 2026-01-30 | 2026-02-02 | $219.71 | $152K | +4.2% | +10.1% | +2.8% |
| WM | SELL | 2025-03-05 | 2025-03-05 | $228.11 | $1.4M | -0.4% | -1.7% | +4.9% |
| WM | SELL | 2025-02-04 | 2025-02-04 | $222.12 | $2.0M | +1.8% | +1.1% | +5.0% |
| WM | SELL · 10b5-1 | 2025-01-31 | 2025-02-03 | $220.41 | $305K | +2.5% | +3.7% | +5.7% |
| WM | SELL | 2024-02-22 | 2024-02-26 | $204.23 | $728K | +0.4% | +3.6% | -0.0% |
| WM | SELL | 2024-02-20 | 2024-02-21 | $203.24 | $3.9M | +1.4% | +3.8% | +2.1% |
| WM | SELL · 10b5-1 | 2024-02-14 | 2024-02-15 | $199.25 | $309K | +3.6% | +5.8% | +4.5% |
| WM | SELL | 2023-12-01 | 2023-12-05 | $172.54 | $3.5M | +1.1% | +3.6% | +19.8% |
| WM | SELL | 2023-11-27 | 2023-11-28 | $171.19 | $3.4M | +1.7% | +5.0% | +22.3% |
| WM | SELL | 2023-02-17 | 2023-02-21 | $155.00 | $1.2M | -2.1% | -1.7% | +7.2% |
| WM | SELL · 10b5-1 | 2023-02-13 | 2023-02-15 | $155.00 | $16K | -1.2% | +1.0% | +10.6% |
| WM | SELL | 2023-02-02 | 2023-02-03 | $150.91 | $304K | +1.1% | +0.2% | +11.5% |
| WM | SELL | 2022-02-17 | 2022-02-22 | $142.15 | $3.1M | +11.2% | +9.2% | +9.9% |
| WM | SELL | 2022-02-16 | 2022-02-17 | $141.73 | $306K | +5.2% | +9.3% | +7.2% |
| WM | SELL | 2021-10-01 | 2021-10-05 | $149.07 | $3.6M | +6.2% | +7.9% | +9.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.