Casella Waste Systems, Inc.
DE ˙ DB ˙ US1474481041
74,62 € ↑3,32 (4,66%)
2026-06-05
DEL PRIS
SecurityDE:WA3 / Casella Waste Systems, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership167,841 shares
Latest Disclosed Value $ 13,316,484
Rhumbline Advisers reports 4.02% increase in ownership of WA3 / Casella Waste Systems, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 167,841 shares of Casella Waste Systems, Inc. (DE:WA3) valued at $11,547,461 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 161,359 shares of Casella Waste Systems, Inc.. This represents a change in shares of 4.02% during the quarter. The current value of the position is $12,524,295 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)
2026-05-12 2026-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 167,841 6,482 4.02 13,316 -15.74 0.0114
2026-02-13 2025-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 161,359 68,258 73.32 15,803 78.91 0.0128
2025-11-06 2025-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 93,101 -3,501 -3.62 8,833 -20.74 0.0071
2025-08-12 2025-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 96,602 4,882 5.32 11,146 8.98 0.0095
2025-05-29 2025-03-31 13F/A-1 CASELLA WASTE SYS INC CL A COM 147448104 91,720 4,862 5.60 10,228 11.28 0.0096
2025-04-08 2025-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 91,720 4,862 10,228 0.0096
2025-05-29 2024-12-31 13F/A-1 CASELLA WASTE SYS INC CL A COM 147448104 86,858 2,454 2.91 9,190 9.44 0.0082
2025-01-30 2024-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 86,858 2,454 9,190 0.0082
2024-11-12 2024-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 84,404 461 0.55 8,397 0.83 0.0076
2024-08-01 2024-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 83,943 4,008 5.01 8,329 5.38 0.0078
2024-05-09 2024-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 79,935 82 0.10 7,903 15.81 0.0076
2024-02-08 2023-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 79,853 -727 -0.90 6,824 11.00 0.0072
2023-11-09 2023-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 80,580 7,135 9.71 6,148 -7.45 0.0071
2023-08-08 2023-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 73,445 5,491 8.08 6,643 132,760.00 0.0074
2023-05-11 2023-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 67,954 1,955 2.96 6 -99.90 0.0069
2023-02-14 2022-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 65,999 1,802 2.81 5,234 6.73 0.0070
2022-11-10 2022-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 64,197 5,285 8.97 4,904 14.53 0.0073
2022-08-11 2022-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 58,912 6,660 12.75 4,282 -6.51 0.0062
2022-05-12 2022-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 52,252 124 0.24 4,580 2.85 0.0059
2022-02-10 2021-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 52,128 -774 -1.46 4,453 10.85 0.0055
2021-11-12 2021-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 52,902 1,952 3.83 4,017 24.29 0.0054
2021-08-05 2021-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 50,950 -3,587 -6.58 3,232 -6.78 0.0042
2021-05-06 2021-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 54,537 -6,773 -11.05 3,467 -8.72 0.0047
2021-02-10 2020-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 61,310 6,015 10.88 3,798 22.99 0.0052
2020-11-12 2020-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 55,295 -15,576 -21.98 3,088 -16.40 0.0048
2020-08-13 2020-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 70,871 10,844 18.07 3,694 57.53 0.0062
2020-05-06 2020-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 60,027 -1,957 -3.16 2,345 -17.81 0.0049
2020-02-05 2019-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 61,984 2,321 3.89 2,853 11.36 0.0048
2019-10-23 2019-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 59,663 275 0.46 2,562 8.84 0.0047
2019-08-14 2019-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 59,388 -2,360 -3.82 2,354 7.19 0.0044
2019-05-01 2019-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 61,748 4,537 7.93 2,196 34.72 0.0043
2019-01-31 2018-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 57,211 17,990 45.87 1,630 33.83 0.0035
2018-11-07 2018-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 39,221 -425 -1.07 1,218 20.00 0.0024
2018-08-06 2018-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 39,646 1,596 4.19 1,015 14.04 0.0020
2018-05-02 2018-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 38,050 -1,625 -4.10 890 -2.52 0.0019
2018-02-09 2017-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 39,675 -6,967 -14.94 913 4.10 0.0019
2017-11-06 2017-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 46,642 415 0.90 877 15.55 0.0019
2017-08-02 2017-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 46,227 -2,405 -4.95 759 10.64 0.0017
2017-05-02 2017-03-31 13F CASELLA WASTE SYS INC CL A COM 147448104 48,632 1,121 2.36 686 16.27 0.0016
2017-01-27 2016-12-31 13F CASELLA WASTE SYS INC CL A COM 147448104 47,511 -6,269 -11.66 590 6.50 0.0015
2016-11-08 2016-09-30 13F CASELLA WASTE SYS INC CL A COM 147448104 53,780 510 0.96 554 32.54 0.0015
2016-08-11 2016-06-30 13F CASELLA WASTE SYS INC CL A COM 147448104 53,270 -3,842 -6.73 418 9.14 0.0012
2016-05-02 2016-03-31 13F CASELLA WASTE SYSTEMS INC A COM 147448104 57,112 4,640 8.84 383 21.97 0.0012
2016-02-03 2015-12-31 13F CASELLA WASTE SYSTEMS INC A COM 147448104 52,472 2,395 4.78 314 8.28 0.0010
2015-11-04 2015-09-30 13F CASELLA WASTE SYSTEMS INC A COM 147448104 50,077 2,780 5.88 290 9.43 0.0010
2015-08-04 2015-06-30 13F CASELLA WASTE SYSTEMS INC A COM 147448104 47,297 5,300 12.62 265 14.72 0.0008
2015-05-12 2015-03-31 13F CASELLA WASTE SYSTEMS INC A COM 147448104 41,997 6,700 18.98 231 61.54 0.0007
2015-02-06 2014-12-31 13F CASELLA WASTE SYSTEMS INC A COM 147448104 35,297 1,325 3.90 143 9.16 0.0004
2014-11-12 2014-09-30 13F CASELLA WASTE SYSTEMS INC A COM 147448104 33,972 0 0.00 131 -22.94 0.0004
2014-08-06 2014-06-30 13F CASELLA WASTE SYSTEMS INC A COM 147448104 33,972 850 2.57 170 0.59 0.0005
2014-05-06 2014-03-31 13F CASELLA WASTE SYSTEMS INC A COM 147448104 33,122 -1,890 -5.40 169 -16.75 0.0005
2014-02-03 2013-12-31 13F CASELLA WASTE SYSTEMS INC A COM 147448104 35,012 -400 -1.13 203 -0.49 0.0006
2013-11-05 2013-09-30 13F CASELLA WASTE SYSTEMS INC A COM 147448104 35,412 -357 -1.00 204 32.47 0.0006
2013-08-07 2013-06-30 13F CASELLA WASTE SYSTEMS INC A COM 147448104 35,769 35,769 154 0.0005
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.