Tara J. Hemmer, SVP and Chief Sustainability Officer at Waste Management Inc. ($WM), sold about $1.3 million in company shares through two open market transactions over the past year. Her most recent sale occurred on March 2, 2026. These sales rank her 4309th among 11,678 individual insiders, below the average sale value of $8.6 million across roughly 6.4 transactions per insider. Hemmer made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 3, 2026 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | A | Stock Option (Right to Buy) | 8405 | $0.00 | 8,405.0000 | 404,200,000 | 9999.99% | 0.00% |
| March 2, 2026 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 4818 | $241.83 | 78,917.5789 | 404,200,000 | 5.75% | 0.00% |
| Jan. 29, 2026 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | A | Common Stock | 10988 | $226.41 | 88,110.5789 | 404,200,000 | 14.25% | 0.00% |
| Jan. 30, 2026 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 690 | $219.71 | 83,735.5789 | 404,200,000 | 0.82% | 0.00% |
| Jan. 29, 2026 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | F | Common Stock | 3685 | $226.41 | 84,425.5789 | 404,200,000 | 4.18% | 0.00% |
| Nov. 25, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | G | Common Stock | 693 | $0.00 | 77,122.5789 | 404,300,000 | 0.89% | 0.00% |
| Sept. 2, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | A | Common Stock | 9130 | $0.00 | 77,815.5789 | 404,300,000 | 13.29% | 0.00% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Stock Option (Right to Buy) | 19710 | $110.81 | 0.0000 | 403,900,000 | 100.00% | 0.00% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Stock Option (Right to Buy) | 12859 | $145.67 | 0.0000 | 403,900,000 | 100.00% | 0.00% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | F | Common Stock | 15050 | $233.00 | 68,685.5789 | 403,900,000 | 17.97% | 0.00% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Stock Option (Right to Buy) | 20860 | $126.01 | 0.0000 | 403,900,000 | 100.00% | 0.01% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Common Stock | 19710 | $110.81 | 94,232.5789 | 403,900,000 | 26.45% | 0.00% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Common Stock | 20860 | $126.01 | 74,522.5789 | 403,900,000 | 38.87% | 0.01% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Common Stock | 12859 | $145.67 | 107,091.5789 | 403,900,000 | 13.65% | 0.00% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | F | Common Stock | 13441 | $233.00 | 83,735.5789 | 403,900,000 | 13.83% | 0.00% |
| May 20, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | F | Common Stock | 9915 | $234.00 | 97,176.5789 | 403,900,000 | 9.26% | 0.00% |
| March 5, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 3094 | $228.11 | 53,662.5789 | 403,400,000 | 5.45% | 0.00% |
| March 1, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | F | Common Stock | 2008 | $231.37 | 56,756.5789 | 403,400,000 | 3.42% | 0.00% |
| Feb. 25, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | A | Stock Option (Right to Buy) | 8851 | $0.00 | 8,851.0000 | 403,400,000 | 9999.99% | 0.00% |
| Feb. 4, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 4576 | $222.12 | 58,764.5789 | 403,400,000 | 7.22% | 0.00% |
| Jan. 31, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 693 | $220.41 | 63,340.5789 | 403,400,000 | 1.08% | 0.00% |
| Jan. 30, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | A | Common Stock | 14007 | $218.72 | 68,883.5789 | 403,400,000 | 25.52% | 0.00% |
| Jan. 30, 2025 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | F | Common Stock | 4850 | $218.72 | 64,033.5789 | 403,400,000 | 7.04% | 0.00% |
| Dec. 5, 2024 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | G | Common Stock | 714 | $0.00 | 54,876.5789 | 403,200,000 | 1.28% | 0.00% |
| March 1, 2024 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | A | Stock Option (Right to Buy) | 9302 | $0.00 | 9,302.0000 | 406,900,000 | 9999.99% | 0.00% |
| Feb. 22, 2024 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 1782 | $204.23 | 55,590.5789 | 406,900,000 | 3.11% | 0.00% |
| Feb. 20, 2024 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 9534 | $203.24 | 57,372.5789 | 406,900,000 | 14.25% | 0.00% |
| Feb. 13, 2024 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | F | Common Stock | 8768 | $196.85 | 67,681.5789 | 406,900,000 | 11.47% | 0.00% |
| Feb. 13, 2024 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | A | Common Stock | 23860 | $196.85 | 76,449.5789 | 406,900,000 | 45.37% | 0.01% |
| Feb. 14, 2024 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 775 | $199.25 | 66,906.5789 | 406,900,000 | 1.15% | 0.00% |
| Dec. 1, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 10009 | $172.54 | 52,589.5789 | 405,900,000 | 15.99% | 0.00% |
| Dec. 1, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Stock Option (Right to Buy) | 13500 | $98.90 | 0.0000 | 405,900,000 | 100.00% | 0.00% |
| Dec. 1, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Common Stock | 13500 | $98.90 | 62,598.5789 | 405,900,000 | 27.50% | 0.00% |
| Nov. 27, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 10048 | $171.19 | 49,098.5789 | 405,900,000 | 16.99% | 0.00% |
| Nov. 27, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Stock Option (Right to Buy) | 13505 | $98.90 | 13,500.0000 | 405,900,000 | 50.01% | 0.00% |
| Nov. 27, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | G | Common Stock | 900 | $0.00 | 59,146.5789 | 405,900,000 | 1.50% | 0.00% |
| Nov. 27, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Common Stock | 13505 | $98.90 | 60,046.5789 | 405,900,000 | 29.02% | 0.00% |
| March 7, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | A | Stock Option (Right to Buy) | 10969 | $0.00 | 10,969.0000 | 415,000,000 | 9999.99% | 0.00% |
| Feb. 17, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 7515 | $155.00 | 46,541.5789 | 415,000,000 | 13.90% | 0.00% |
| Feb. 13, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 100 | $155.00 | 54,056.5789 | 415,000,000 | 0.18% | 0.00% |
| Feb. 2, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | S | Common Stock | 1006 | $150.91 | 54,156.5789 | 415,000,000 | 1.82% | 0.00% |
| Feb. 1, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | M | Common Stock | 19104 | $152.11 | 61,722.5789 | 415,000,000 | 44.83% | 0.00% |
| Feb. 1, 2023 | WASTE MANAGEMENT INC | $WM | Hemmer Tara J. | SVP & Chief Sustainability Off | F | Common Stock | 6560 | $152.11 | 55,162.5789 | 415,000,000 | 10.63% | 0.00% |