Waste Management, Inc.
US ˙ NYSE ˙ US94106L1098

SecurityWM / Waste Management, Inc.
InstitutionAtlantic Trust, LLC
Latest Disclosed Ownership14,373 shares
Latest Disclosed Value $ 3,302,772
Atlantic Trust, LLC reports 0.55% increase in ownership of WM / Waste Management, Inc.

On May 6, 2026 - Atlantic Trust, LLC filed a 13F-HR form disclosing ownership of 14,373 shares of Waste Management, Inc. (US:WM) valued at $3,302,772 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 14,295 shares of Waste Management, Inc.. This represents a change in shares of 0.55% during the quarter. The current value of the position is $3,133,314 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-06 2026-03-31 13F WASTE MGMT INC DEL COM 94106L109 14,373 78 0.55 3,303 5.16 0.5384
2026-02-09 2025-12-31 13F WASTE MGMT INC DEL COM 94106L109 14,295 -712 -4.74 3,141 -5.22 0.4944
2025-11-10 2025-09-30 13F WASTE MGMT INC DEL COM 94106L109 15,007 -143 -0.94 3,314 -4.41 0.5662
2025-08-08 2025-06-30 13F WASTE MGMT INC DEL COM 94106L109 15,150 -49 -0.32 3,467 -1.48 0.6558
2025-05-09 2025-03-31 13F Waste Management Com 94106L109 15,199 231 1.54 3,519 16.49 0.7832
2025-02-10 2024-12-31 13F WASTE MGMT INC DEL COM 94106L109 14,968 -4,753 -24.10 3,020 -26.23 0.6528
2024-11-13 2024-09-30 13F WASTE MGMT INC DEL COM 94106L109 19,721 187 0.96 4,094 -1.75 0.9800
2024-08-09 2024-06-30 13F WASTE MGMT INC DEL COM 94106L109 19,534 177 0.91 4,167 1.02 1.0363
2024-05-10 2024-03-31 13F WASTE MGMT INC DEL COM 94106L109 19,357 677 3.62 4,126 23.32 1.0790
2024-02-06 2023-12-31 13F WASTE MGMT INC DEL COM 94106L109 18,680 1,545 9.02 3,346 28.06 0.9148
2023-11-13 2023-09-30 13F WASTE MGMT INC DEL COM 94106L109 17,135 7,908 85.70 2,612 73.21 0.8591
2023-08-08 2023-06-30 13F Waste Management Com 94106L109 9,227 -4,980 -35.05 1,509 -34.94 0.4845
2023-05-10 2023-03-31 13F Waste Management COM 94106L109 14,207 -55 -0.39 2,318 115,800.00 0.7396
2023-02-01 2022-12-31 13F WASTE MGMT INC DEL COM 94106L109 14,262 8,619 152.74 2 -99.78 0.7457
2022-11-14 2022-09-30 13F WASTE MGMT INC DEL COM 94106L109 5,643 133 2.41 904 7.24 0.3146
2022-08-11 2022-06-30 13F Waste Management COM 94106L109 5,510 0 0.00 843 -3.44 0.6411
2022-05-16 2022-03-31 13F Waste Management COM 94106L109 5,510 -80 -1.43 873 -6.33 0.5661
2022-02-09 2021-12-31 13F Waste Management Com 94106L109 5,590 0 0.00 932 11.62 0.5498
2021-11-02 2021-09-30 13F Waste Management Com 94106L109 5,590 2,040 57.46 835 68.01 0.5288
2021-08-12 2021-06-30 13F Waste Management Com 94106L109 3,550 0 0.00 497 8.52 0.3242
2021-04-30 2021-03-31 13F Waste Management Com 94106L109 3,550 -14,430 -80.26 458 -78.40 0.3391
2021-02-16 2020-12-31 13F Waste Management Com 94106L109 17,980 129 0.72 2,120 4.95 1.2605
2020-10-23 2020-09-30 13F Waste Management Com 94106L109 17,851 1,256 7.57 2,020 14.90 1.6044
2020-08-17 2020-06-30 13F Waste Management Com 94106L109 16,595 -2,858 -14.69 1,758 -2.39 1.4811
2020-05-12 2020-03-31 13F Waste Management Com 94106L109 19,453 2,337 13.65 1,801 -7.69 1.6290
2020-02-03 2019-12-31 13F Waste Management Com 94106L109 17,116 13,496 372.82 1,951 368.99 1.4293
2019-11-07 2019-09-30 13F Waste Management Com 94106L109 3,620 -118 -3.16 416 -3.48 0.3243
2019-07-31 2019-06-30 13F Waste Management Com 94106L109 3,738 0 0.00 431 10.80 0.3441
2019-05-13 2019-03-31 13F Waste Management Com 94106L109 3,738 -52 -1.37 389 15.43 0.3246
2019-02-13 2018-12-31 13F/A-1 Waste Management Com 94106L109 3,790 -10 -0.26 337 -1.75 0.3133
2019-02-13 2018-12-31 13F Waste Management Com 94106L109 3,790 337
2018-11-15 2018-09-30 13F Waste Management COM 94106L109 3,800 -20 -0.52 343 10.29 0.2631
2018-08-20 2018-06-30 13F Waste Management Com 94106L109 3,820 270 7.61 311 4.01 0.2778
2018-05-15 2018-03-31 13F Waste Management COM 94106L109 3,550 -270 -7.07 299 -9.39 0.2566
2018-02-14 2017-12-31 13F Waste Management Com 94106L109 3,820 0 0.00 330 10.37 0.2256
2017-11-17 2017-09-30 13F Waste Management Com 94106L109 3,820 0 0.00 299 73.84 0.2224
2017-08-21 2017-06-30 13F Waste Management Com 94106L109 3,820 270 7.61 172 -33.59 0.1357
2017-06-19 2017-03-31 13F Waste Management Inc Del COM 94106L109 3,550 0 0.00 259 2.78 0.2144
2017-06-14 2016-12-31 13F Waste Management Inc Del COM 94106L109 3,550 3,550 252 0.2264
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.