Waste Management, Inc.
DE ˙ XTRA ˙ US94106L1098
186,70 € ↑5,30 (2,92%)
2026-06-03
DEL PRIS
SecurityDE:UWS / Waste Management, Inc.
InstitutionCalamos Advisors LLC
Latest Disclosed Ownership230,863 shares
Latest Disclosed Value $ 53,050,099
Calamos Advisors LLC reports 19.05% increase in ownership of UWS / Waste Management, Inc.

On May 4, 2026 - Calamos Advisors LLC filed a 13F-HR form disclosing ownership of 230,863 shares of Waste Management, Inc. (DE:UWS) valued at $45,909,416 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 193,919 shares of Waste Management, Inc.. This represents a change in shares of 19.05% during the quarter. The current value of the position is $43,102,122 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)
2026-05-04 2026-03-31 13F WASTE MGMT INC DEL COM 94106L109 230,863 36,944 19.05 53,050 24.52 0.1871
2026-01-29 2025-12-31 13F WASTE MGMT INC DEL COM 94106L109 193,919 -85,135 -30.51 42,606 -30.86 0.1600
2025-10-20 2025-09-30 13F WASTE MGMT INC DEL COM 94106L109 279,054 43,476 18.46 61,623 14.32 0.2276
2025-08-08 2025-06-30 13F WASTE MGMT INC DEL COM 94106L109 235,578 -47,922 -16.90 53,905 -17.87 0.2122
2025-04-29 2025-03-31 13F WASTE MGMT INC DEL COM 94106L109 283,500 7,751 2.81 65,633 17.95 0.2857
2025-01-24 2024-12-31 13F WASTE MGMT INC DEL COM 94106L109 275,749 114,236 70.73 55,643 65.95 0.2327
2024-11-07 2024-09-30 13F WASTE MGMT INC DEL COM 94106L109 161,513 -2,745 -1.67 33,530 -4.31 0.1450
2024-07-25 2024-06-30 13F WASTE MGMT INC DEL COM 94106L109 164,258 -7,359 -4.29 35,043 -4.20 0.1556
2024-05-08 2024-03-31 13F WASTE MGMT INC DEL COM 94106L109 171,617 -5,191 -2.94 36,580 15.52 0.1733
2024-01-31 2023-12-31 13F WASTE MGMT INC DEL COM 94106L109 176,808 -164 -0.09 31,666 17.38 0.1536
2023-10-26 2023-09-30 13F WASTE MGMT INC DEL COM 94106L109 176,972 718 0.41 26,978 -11.74 0.1402
2023-07-28 2023-06-30 13F WASTE MGMT INC DEL COM 94106L109 176,254 2,030 1.17 30,566 7.52 0.1512
2023-05-04 2023-03-31 13F WASTE MGMT INC DEL COM 94106L109 174,224 -26,687 -13.28 28,428 -9.80 0.1388
2023-01-26 2022-12-31 13F WASTE MGMT INC DEL COM 94106L109 200,911 -39,698 -16.50 31,519 -18.24 0.1479
2022-10-24 2022-09-30 13F WASTE MGMT INC DEL COM 94106L109 240,609 2,546 1.07 38,548 5.85 0.1763
2022-08-01 2022-06-30 13F WASTE MGMT INC DEL COM 94106L109 238,063 -13,884 -5.51 36,419 -8.80 0.1571
2022-05-03 2022-03-31 13F WASTE MGMT INC DEL COM 94106L109 251,947 21,065 9.12 39,934 3.63 0.1499
2022-02-01 2021-12-31 13F WASTE MGMT INC DEL COM 94106L109 230,882 4,744 2.10 38,534 14.09 0.1441
2021-10-26 2021-09-30 13F WASTE MGMT INC DEL COM 94106L109 226,138 -22,469 -9.04 33,776 -3.03 0.1475
2021-07-22 2021-06-30 13F WASTE MGMT INC DEL COM 94106L109 248,607 106,398 74.82 34,832 89.84 0.1591
2021-04-12 2021-03-31 13F WASTE MGMT INC DEL COM 94106L109 142,209 -71,817 -33.56 18,348 -27.31 0.1001
2021-01-27 2020-12-31 13F WASTE MGMT INC DEL COM 94106L109 214,026 -32,070 -13.03 25,240 -9.37 0.1465
2020-10-26 2020-09-30 13F WASTE MGMT INC DEL COM 94106L109 246,096 36,297 17.30 27,851 25.34 0.1793
2020-07-27 2020-06-30 13F WASTE MGMT INC DEL COM 94106L109 209,799 -16,758 -7.40 22,220 5.96 0.1571
2020-04-28 2020-03-31 13F WASTE MGMT INC DEL COM 94106L109 226,557 -62,522 -21.63 20,970 -36.34 0.1645
2020-01-15 2019-12-31 13F WASTE MANAGEMENT COMMON STOCK 94106L109 289,079 29,590 11.40 32,943 10.40 0.1629
2019-10-21 2019-09-30 13F WASTE MANAGEMENT COMMON STOCK 94106L109 259,489 9,674 3.87 29,841 3.54 0.1625
2019-08-07 2019-06-30 13F WASTE MANAGEMENT COMMON STOCK 94106L109 249,815 11,199 4.69 28,821 16.24 0.1600
2019-04-12 2019-03-31 13F WASTE MANAGEMENT COMMON STOCK 94106L109 238,616 823 0.35 24,795 17.17 0.1547
2019-01-24 2018-12-31 13F WASTE MANAGEMENT COMMON STOCK 94106L109 237,793 70,983 42.55 21,161 40.39 0.1397
2018-10-22 2018-09-30 13F WASTE MANAGEMENT COMMON STOCK 94106L109 166,810 166,810 15,073 0.0829
2017-08-09 2017-06-30 13F WASTE MGT COMMON STOCK 94106L109 0 -304,947 -100.00 0 -100.00
2017-04-20 2017-03-31 13F WASTE MGT COMMON STOCK 94106L109 304,947 12,129 4.14 22,237 7.09 0.1751
2017-02-06 2016-12-31 13F WASTE MGT COMMON STOCK 94106L109 292,818 292,818 20,764 0.1650
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.