Casella Waste Systems, Inc.
US ˙ NasdaqGS ˙ US1474481041

SecurityCWST / Casella Waste Systems, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,067,132 shares
Latest Disclosed Value $ 84,662,540
Dimensional Fund Advisors Lp reports 3.04% increase in ownership of CWST / Casella Waste Systems, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,067,132 shares of Casella Waste Systems, Inc. (US:CWST) valued at $84,666,253 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,035,661 shares of Casella Waste Systems, Inc.. This represents a change in shares of 3.04% during the quarter. The current value of the position is $89,660,431 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)
2026-05-07 2026-03-31 13F CASELLA WASTE SYS CL A 147448104 1,067,132 31,471 3.04 84,663 -16.54 0.0038
2026-02-12 2025-12-31 13F CASELLA WASTE SYS CL A 147448104 1,035,661 85,008 8.94 101,444 12.49 0.0213
2025-11-12 2025-09-30 13F CASELLA WASTE SYS CL A 147448104 950,653 81,619 9.39 90,178 -10.06 0.0194
2025-08-12 2025-06-30 13F CASELLA WASTE SYS CL A 147448104 869,034 -16,243 -1.83 100,270 1.58 0.0232
2025-05-13 2025-03-31 13F CASELLA WASTE SYS CL A 147448104 885,277 -19,321 -2.14 98,712 3.13 0.0245
2025-02-13 2024-12-31 13F CASELLA WASTE SYS CL A 147448104 904,598 30,153 3.45 95,715 10.02 0.0230
2024-11-07 2024-09-30 13F CASELLA WASTE SYS CL A 147448104 874,445 12,982 1.51 86,995 1.78 0.0211
2024-08-09 2024-06-30 13F CASELLA WASTE SYS CL A 147448104 861,463 26,189 3.14 85,476 3.50 0.0223
2024-05-10 2024-03-31 13F CASELLA WASTE SYS CL A 147448104 835,274 12,099 1.47 82,584 17.39 0.0224
2024-02-07 2023-12-31 13F CASELLA WASTE SYS CL A 147448104 823,175 -198,567 -19.43 70,350 -9.77 0.0205
2023-11-09 2023-09-30 13F CASELLA WASTE SYS CL A 147448104 1,021,742 -32,445 -3.08 77,963 -18.23 0.0256
2023-08-09 2023-06-30 13F CASELLA WASTE SYS CL A 147448104 1,054,187 13,921 1.34 95,346 10.89 0.0304
2023-05-12 2023-03-31 13F CASELLA WASTE SYS CL A 147448104 1,040,266 -110,594 -9.61 85,985 94,387.91 0.0290
2023-02-09 2022-12-31 13F CASELLA WASTE SYS CL A 147448104 1,150,860 -40,527 -3.40 91 -99.90 0.0270
2022-11-10 2022-09-30 13F CASELLA WASTE SYS CL A 147448104 1,191,387 -46,189 -3.73 91,016 1.19 0.0349
2022-08-12 2022-06-30 13F CASELLA WASTE SYS CL A 147448104 1,237,576 -14,643 -1.17 89,944 -18.05 0.0323
2022-05-13 2022-03-31 13F CASELLA WASTE SYS CLA 147448104 1,252,219 -43,524 -3.36 109,759 -0.83 0.0338
2022-02-09 2021-12-31 13F CASELLA WASTE SYS CLA 147448104 1,295,743 -74,884 -5.46 110,681 6.33 0.0335
2021-11-12 2021-09-30 13F CASELLA WASTE SYS CLA 147448104 1,370,627 -4,780 -0.35 104,089 19.31 0.0335
2021-08-12 2021-06-30 13F CASELLA WASTE SYS CLA 147448104 1,375,407 -15,894 -1.14 87,242 -1.42 0.0276
2021-05-14 2021-03-31 13F CASELLA WASTE SYS CLA 147448104 1,391,301 -71,211 -4.87 88,500 -2.32 0.0293
2021-03-08 2020-12-31 13F/A-2 CASELLA WASTE SYS CLA 147448104 1,462,512 -80,940 -5.24 90,601 5.10 0.0327
2021-02-11 2020-12-31 13F CASELLA WASTE SYS CLA 147448104 1,462,512 -80,940 90,601 32,720.2655
2020-11-12 2020-09-30 13F CASELLA WASTE SYS CLA 147448104 1,543,452 -160,719 -9.43 86,202 -2.95 0.0366
2020-08-13 2020-06-30 13F CASELLA WASTE SYS CLA 147448104 1,704,171 -80,340 -4.50 88,818 27.41 0.0390
2020-05-14 2020-03-31 13F CASELLA WASTE SYS CLA 147448104 1,784,511 -83,149 -4.45 69,711 -18.91 0.0363
2020-02-14 2019-12-31 13F CASELLA WASTE SYS CLA 147448104 1,867,660 -57,347 -2.98 85,968 4.00 0.0313
2019-11-12 2019-09-30 13F CASELLA WASTE SYS CLA 147448104 1,925,007 -86,605 -4.31 82,661 3.69 0.0321
2019-08-13 2019-06-30 13F CASELLA WASTE SYS CLA 147448104 2,011,612 -62,819 -3.03 79,719 8.07 0.0310
2019-08-12 2019-03-31 13F/A-2 CASELLA WASTE SYS CLA 147448104 2,074,431 34,822 1.71 73,766 26.95 0.0294
2019-05-10 2019-03-31 13F CASELLA WASTE SYS CLA 147448104 2,074,431 34,822 73,766
2019-02-26 2018-12-31 13F/A-1 CASELLA WASTE SYS CLA 147448104 2,039,609 -3,837 -0.19 58,108 -8.45 0.0263
2019-02-13 2018-12-31 13F CASELLA WASTE SYS CLA 147448104 2,039,609 -3,837 58,108
2018-11-13 2018-09-30 13F CASELLA WASTE SYS CLA 147448104 2,043,446 3,605 0.18 63,469 21.49 0.0242
2018-08-10 2018-06-30 13F CASELLA WASTE SYS CLA 147448104 2,039,841 -5,476 -0.27 52,242 9.25 0.0208
2018-05-11 2018-03-31 13F CASELLA WASTE SYS CLA 147448104 2,045,317 -869 -0.04 47,820 1.52 0.0199
2018-02-12 2017-12-31 13F CASELLA WASTE SYS CLA 147448104 2,046,186 12,829 0.63 47,103 23.22 0.0195
2017-11-13 2017-09-30 13F CASELLA WASTE SYS CLA 147448104 2,033,357 16,972 0.84 38,227 15.53 0.0167
2017-08-11 2017-06-30 13F CASELLA WASTE SYS CLA 147448104 2,016,385 108,350 5.68 33,089 22.91 0.0153
2017-05-12 2017-03-31 13F CASELLA WASTE SYS CLA 147448104 1,908,035 118,141 6.60 26,922 21.20 0.0129
2017-02-09 2016-12-31 13F CASELLA WASTE SYS CLA 147448104 1,789,894 157,511 9.65 22,213 32.12 0.0111
2016-11-10 2016-09-30 13F CASELLA WASTE SYS CLA 147448104 1,632,383 63,733 4.06 16,813 36.54 0.0091
2016-08-09 2016-06-30 13F CASELLA WASTE SYS CLA 147448104 1,568,650 31,090 2.02 12,314 19.53 0.0071
2016-05-13 2016-03-31 13F CASELLA WASTE SYS CLA 147448104 1,537,560 -5,467 -0.35 10,302 11.65 0.0062
2016-02-10 2015-12-31 13F CASELLA WASTE SYS CLA 147448104 1,543,027 -7,490 -0.48 9,227 2.60 0.0058
2015-11-13 2015-09-30 13F CASELLA WASTE SYS CLA 147448104 1,550,517 30,538 2.01 8,993 5.46 0.0059
2015-08-14 2015-06-30 13F CASELLA WASTE SYS CLA 147448104 1,519,979 924,404 155.21 8,527 160.37 0.0052
2015-05-14 2015-03-31 13F CASELLA WASTE SYS CLA 147448104 595,575 -31,977 -5.10 3,275 29.19 0.0021
2015-02-06 2014-12-31 13F CASELLA WASTE SYS CLA 147448104 627,552 -6,064 -0.96 2,535 3.94 0.0017
2014-11-13 2014-09-30 13F CASELLA WASTE SYS CLA 147448104 633,616 -13,157 -2.03 2,439 -24.72 0.0017
2014-08-08 2014-06-30 13F CASELLA WASTE SYS CLA 147448104 646,773 33,878 5.53 3,240 3.45 0.0023
2014-05-14 2014-03-31 13F CASELLA WASTE SYS CLA 147448104 612,895 8,906 1.47 3,132 -10.59 0.0023
2014-02-12 2013-12-31 13F CASELLA WASTE SYS CLA 147448104 603,989 54,898 10.00 3,503 10.96 0.0027
2013-11-13 2013-09-30 13F CASELLA WASTE SYS CLA 147448104 549,091 -48,734 -8.15 3,157 22.51 0.0027
2013-08-15 2013-06-30 13F CASELLA WASTE SYS CLA 147448104 597,825 597,825 2,577 0.0024
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.