Casella Waste Systems, Inc.
DE ˙ DB ˙ US1474481041
74,62 € ↑3,32 (4,66%)
2026-06-05
DEL PRIS
SecurityDE:WA3 / Casella Waste Systems, Inc.
InstitutionFred Alger Management, Llc
Latest Disclosed Ownership526,659 shares
Latest Disclosed Value $ 41,785,125
Fred Alger Management, Llc reports 17.45% increase in ownership of WA3 / Casella Waste Systems, Inc.

On May 15, 2026 - Fred Alger Management, Llc filed a 13F-HR form disclosing ownership of 526,659 shares of Casella Waste Systems, Inc. (DE:WA3) valued at $36,234,139 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 448,415 shares of Casella Waste Systems, Inc.. This represents a change in shares of 17.45% during the quarter. The current value of the position is $39,299,295 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)
2026-05-15 2026-03-31 13F Casella Waste Systems, Inc. Equity 147448104 526,659 78,244 17.45 41,785 -4.85 0.1168
2026-02-17 2025-12-31 13F Casella Waste Systems, Inc. Equity 147448104 448,415 -113,435 -20.19 43,918 -17.62 0.1723
2025-11-14 2025-09-30 13F Casella Waste Systems, Inc. Equity 147448104 561,850 -114,178 -16.89 53,308 -31.66 0.2075
2025-08-14 2025-06-30 13F Casella Waste Systems, Inc. Equity 147448104 676,028 -117,557 -14.81 78,000 -11.86 0.3491
2025-05-16 2025-03-31 13F Casella Waste Systems, Inc. Equity 147448104 793,585 -19,818 -2.44 88,493 2.82 0.5040
2025-02-14 2024-12-31 13F Casella Waste Systems, Inc. Equity 147448104 813,403 -255,149 -23.88 86,066 -19.04 0.4101
2024-11-14 2024-09-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,068,552 -52,161 -4.65 106,310 -4.39 0.5153
2024-08-14 2024-06-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,120,713 -104,941 -8.56 111,197 -8.24 0.5406
2024-05-15 2024-03-31 13F CASELLA WASTE SYSTEMS Common 147448104 1,225,654 43,293 3.66 121,180 19.93 0.6009
2024-02-14 2023-12-31 13F CASELLA WASTE SYSTEMS Common 147448104 1,182,361 -193,728 -14.08 101,045 -3.76 0.5452
2023-11-14 2023-09-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,376,089 4,844 0.35 104,996 -15.35 0.5566
2023-11-14 2023-09-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,376,089 104,996
2023-08-14 2023-06-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,371,245 -218,624 -13.75 124,029 -5.62 0.6335
2023-05-16 2023-03-31 13F/A-1 CASELLA WASTE SYSTEMS Common 147448104 1,589,869 -704,950 -30.72 131,419 -27.79 0.7029
2023-05-15 2023-03-31 13F CASELLA WASTE SYSTEMS Common 147448104 1,589,869 -704,950 131,419 0.6517
2023-02-14 2022-12-31 13F CASELLA WASTE SYSTEMS Common 147448104 2,294,819 -17,066 -0.74 182,002 3.06 0.9865
2022-11-15 2022-09-30 13F CASELLA WASTE SYSTEMS Common 147448104 2,311,885 -62,065 -2.61 176,605 2.36 0.8948
2022-08-15 2022-06-30 13F CASELLA WASTE SYSTEMS Common 147448104 2,373,950 -292,161 -10.96 172,539 -26.17 0.8057
2022-05-16 2022-03-31 13F CASELLA WASTE SYSTEMS Common 147448104 2,666,111 256,730 10.66 233,684 13.54 0.7466
2022-02-14 2021-12-31 13F CASELLA WASTE SYSTEMS Common 147448104 2,409,381 42,311 1.79 205,810 14.49 0.5156
2021-11-15 2021-09-30 13F CASELLA WASTE SYSTEMS Common 147448104 2,367,070 1,115,909 89.19 179,755 126.50 0.4286
2021-08-16 2021-06-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,251,161 -241,152 -16.16 79,361 -16.34 0.1873
2021-05-17 2021-03-31 13F CASELLA WASTE SYSTEMS Common 147448104 1,492,313 -383,497 -20.44 94,866 -18.36 0.2482
2021-02-16 2020-12-31 13F CASELLA WASTE SYSTEMS Common 147448104 1,875,810 34,183 1.86 116,206 12.98 0.3023
2020-11-13 2020-09-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,841,627 79,292 4.50 102,855 11.98 0.2986
2020-08-14 2020-06-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,762,335 -123,138 -6.53 91,853 24.72 0.3026
2020-05-19 2020-03-31 13F/A-1 CASELLA WASTE SYSTEMS Common 147448104 1,885,473 14,429 0.77 73,647 -14.49 0.3236
2020-05-15 2020-03-31 13F CASELLA WASTE SYSTEMS Common 147448104 1,885,473 14,429 73,647 324,028.7749
2020-02-14 2019-12-31 13F CASELLA WASTE SYSTEMS Common 147448104 1,871,044 29,616 1.61 86,124 8.92 0.3170
2019-11-14 2019-09-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,841,428 451,457 32.48 79,071 43.54 0.3103
2019-08-14 2019-06-30 13F CASELLA WASTE SYSTEMS Common 147448104 1,389,971 116,653 9.16 55,085 21.66 0.2116
2019-05-14 2019-03-31 13F CASELLA WASTE SYSTEMS Common 147448104 1,273,318 1,273,318 45,279 0.1803
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.