Casella Waste Systems, Inc.
US ˙ NasdaqGS ˙ US1474481041

SecurityCWST / Casella Waste Systems, Inc.
InstitutionHm Payson & Co
Latest Disclosed Ownership18,467 shares
Latest Disclosed Value $ 1,465,172
Hm Payson & Co reports 5.08% decrease in ownership of CWST / Casella Waste Systems, Inc.

On April 13, 2026 - Hm Payson & Co filed a 13F-HR form disclosing ownership of 18,467 shares of Casella Waste Systems, Inc. (US:CWST) valued at $1,465,172 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 19,455 shares of Casella Waste Systems, Inc.. This represents a change in shares of -5.08% during the quarter. The current value of the position is $1,551,597 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)
2026-04-13 2026-03-31 13F CASELLA WASTE SYS CL A 147448104 18,467 -988 -5.08 1,465 -23.10 0.0110
2026-02-12 2025-12-31 13F CASELLA WASTE SYS CL A 147448104 19,455 0 0.00 1,905 3.25
2025-10-17 2025-09-30 13F CASELLA WASTE SYS CL A 147448104 19,455 -3,745 -16.14 1,846 -31.05 0.0265
2025-10-17 2025-06-30 13F CASELLA WASTE SYS CL A 147448104 23,200 -2,800 -10.77 2,677 -7.69 0.0424
2025-04-29 2025-03-31 13F CASELLA WASTE SYS CL A 147448104 26,000 -4,000 -13.33 2,899 -8.66 0.0509
2025-02-07 2024-12-31 13F CASELLA WASTE SYS CL A 147448104 30,000 0 0.00 3,174 6.37 0.0538
2024-10-28 2024-09-30 13F CASELLA WASTE SYS CL A 147448104 30,000 -2,650 -8.12 2,985 -7.87 0.0512
2024-08-13 2024-06-30 13F CASELLA WASTE SYS CL A 147448104 32,650 -8,867 -21.36 3,240 -21.08 0.0589
2024-06-20 2024-03-31 13F CASELLA WASTE SYS CL A 147448104 41,517 0 0.00 4,105 15.67 0.0763
2024-02-13 2023-12-31 13F CASELLA WASTE SYS CL A 147448104 41,517 -2,000 -4.60 3,548 6.87 0.0735
2023-11-06 2023-09-30 13F CASELLA WASTE SYS CL A 147448104 43,517 0 0.00 3,320 -15.65 0.0778
2023-07-17 2023-06-30 13F CASELLA WASTE SYS CL A 147448104 43,517 0 0.00 3,936 9.42 0.0884
2023-04-18 2023-03-31 13F CASELLA WASTE SYS CL A 147448104 43,517 -3,000 -6.45 3,597 -2.49 0.0863
2023-02-06 2022-12-31 13F CASELLA WASTE SYS CL A 147448104 46,517 0 0.00 3,689 3.83 0.0919
2022-10-25 2022-09-30 13F CASELLA WASTE SYS CL A 147448104 46,517 0 0.00 3,553 5.09 0.0975
2022-08-15 2022-06-30 13F CASELLA WASTE SYS CL A 147448104 46,517 0 0.00 3,381 -17.07 0.0867
2022-05-12 2022-03-31 13F CASELLA WASTE SYS CL A 147448104 46,517 -8,000 -14.67 4,077 -12.45 0.0928
2022-02-15 2021-12-31 13F CASELLA WASTE SYS CL A 147448104 54,517 0 0.00 4,657 12.49 0.1012
2021-11-30 2021-09-30 13F CASELLA WASTE SYS CL A 147448104 54,517 0 0.00 4,140 19.72 0.1008
2021-08-17 2021-06-30 13F CASELLA WASTE SYS CL A 147448104 54,517 0 0.00 3,458 -0.23 0.0843
2021-06-15 2021-03-31 13F CASELLA WASTE SYS CL A 147448104 54,517 -8,478 -13.46 3,466 -11.20 0.0923
2021-03-10 2020-12-31 13F CASELLA WASTE SYS CL A 147448104 62,995 10,684 20.42 3,903 33.57 0.1079
2020-12-21 2020-09-30 13F CASELLA WASTE SYS CL A 147448104 52,311 52,311 2,922 0.0900
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.