Waste Management, Inc.
US ˙ NYSE ˙ US94106L1098

SecurityWM / Waste Management, Inc.
InstitutionWiley Bros.-aintree Capital, Llc
Latest Disclosed Ownership92,595 shares
Latest Disclosed Value $ 21,280,143
Wiley Bros.-aintree Capital, Llc reports 10.05% increase in ownership of WM / Waste Management, Inc.

On May 15, 2026 - Wiley Bros.-aintree Capital, Llc filed a 13F-HR form disclosing ownership of 92,595 shares of Waste Management, Inc. (US:WM) valued at $21,277,405 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 84,138 shares of Waste Management, Inc.. This represents a change in shares of 10.05% during the quarter. The current value of the position is $20,185,710 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)
2026-05-15 2026-03-31 13F WASTE MGMT INC DEL COM 94106L109 92,595 8,457 10.05 21,280 15.15 0.1052
2026-02-17 2025-12-31 13F WASTE MGMT INC DEL COM 94106L109 84,138 9,883 13.31 18,481 12.82 0.0967
2025-11-14 2025-09-30 13F WASTE MGMT INC DEL COM 94106L109 74,255 19,516 35.65 16,381 30.77 0.1049
2025-08-14 2025-06-30 13F WASTE MGMT INC DEL COM 94106L109 54,739 12,639 30.02 12,526 30.47 0.0961
2025-05-15 2025-03-31 13F WASTE MGMT INC DEL COM 94106L109 42,100 1,547 3.81 9,601 17.60 0.1020
2025-02-14 2024-12-31 13F WASTE MGMT INC DEL COM 94106L109 40,553 15,703 63.19 8,164 58.28 0.0979
2024-11-14 2024-09-30 13F WASTE MGMT INC DEL COM 94106L109 24,850 13,721 123.29 5,159 118.37 0.0995
2024-07-24 2024-06-30 13F WASTE MGMT INC DEL COM 94106L109 11,129 9,057 437.11 2,363 435.60 0.1034
2024-04-11 2024-03-31 13F WASTE MGMT INC DEL COM 94106L109 2,072 2,072 442 0.0608
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.