폐기물 연결, Inc.
US ˙ NYSE ˙ CA94106B1013

SecurityWCN / Waste Connections, Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership1,700,377 shares
Latest Disclosed Value $ 276,209,378
Brown Advisory Inc reports 1.35% increase in ownership of WCN / Waste Connections, Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 1,700,377 shares of Waste Connections, Inc. (US:WCN) valued at $276,209,240 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,677,773 shares of Waste Connections, Inc.. This represents a change in shares of 1.35% during the quarter. The current value of the position is $261,773,039 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 CONNECTIONS COM 94106B101 1,700,377 22,604 1.35 276,209 -6.12 0.2024
2026-02-13 2025-12-31 13F WASTE CONNECTIONS COM 94106B101 1,677,773 413,202 32.68 294,214 32.34 0.4105
2025-11-14 2025-09-30 13F WASTE CONNECTIONS COM 94106B101 1,264,571 4,411 0.35 222,312 -5.52 0.2894
2025-08-13 2025-06-30 13F WASTE CONNECTIONS COM 94106B101 1,260,160 -230,937 -15.49 235,297 -19.15 0.3097
2025-04-30 2025-03-31 13F WASTE CONNECTIONS COM 94106B101 1,491,097 -41,632 -2.72 291,047 10.67 0.4159
2025-02-14 2024-12-31 13F WASTE CONNECTIONS COM 94106B101 1,532,729 -24,390 -1.57 262,986 -5.55 0.3336
2024-11-13 2024-09-30 13F WASTE CONNECTIONS COM 94106B101 1,557,119 -37,830 -2.37 278,444 -0.45 0.3496
2024-08-14 2024-06-30 13F WASTE CONNECTIONS COM 94106B101 1,594,949 -38,781 -2.37 279,690 -0.47 0.3656
2024-04-24 2024-03-31 13F WASTE CONNECTIONS COM 94106B101 1,633,730 -49,962 -2.97 281,018 11.81 0.3757
2024-02-08 2023-12-31 13F WASTE CONNECTIONS COM 94106B101 1,683,692 10,562 0.63 251,325 11.85 0.3533
2023-10-25 2023-09-30 13F WASTE CONNECTIONS COM 94106B101 1,673,130 12,724 0.77 224,701 -5.32 0.3688
2023-07-31 2023-06-30 13F WASTE CONNECTIONS COM 94106B101 1,660,406 -34,129 -2.01 237,322 0.71 0.3707
2023-05-08 2023-03-31 13F WASTE CONNECTIONS COM 94106B101 1,694,535 32,872 1.98 235,659 6.99 0.3989
2023-02-13 2022-12-31 13F WASTE CONNECTIONS COM 94106B101 1,661,663 9,886 0.60 220,270 -1.31 0.4092
2022-11-14 2022-09-30 13F WASTE CONNECTIONS COM 94106B101 1,651,777 -4,166 -0.25 223,204 8.74 0.4342
2022-11-14 2022-06-30 13F/A-2 WASTE CONNECTIONS COM 94106B101 1,655,943 -30,876 -1.83 205,271 -12.89 0.3860
2022-09-13 2022-06-30 13F/A-1 WASTE CONNECTIONS COM 94106B101 1,605,745 -29,965 199,048 0.3442
2022-08-02 2022-06-30 13F WASTE CONNECTIONS COM 94106B101 1,595,811 -37,978 198,442 0.3188
2022-11-14 2022-03-31 13F/A-2 WASTE CONNECTIONS COM 94106B101 1,686,819 59,915 3.68 235,648 6.29 0.3512
2022-09-13 2022-03-31 13F/A-1 WASTE CONNECTIONS COM 94106B101 1,635,710 8,806 228,509 0.3208
2022-05-09 2022-03-31 13F WASTE CONNECTIONS COM 94106B101 1,633,789 6,885 228,065 0.3099
2022-01-27 2021-12-31 13F WASTE CONNECTIONS COM 94106B101 1,626,904 -47,994 -2.87 221,698 5.11 0.2747
2021-11-12 2021-09-30 13F WASTE CONNECTIONS COM 94106B101 1,674,898 -27,309 -1.60 210,920 3.75 0.3113
2021-07-29 2021-06-30 13F WASTE CONNECTIONS COM 94106B101 1,702,207 -76,474 -4.30 203,295 5.85 0.3065
2021-05-14 2021-03-31 13F WASTE CONNECTIONS COM 94106B101 1,778,681 78,462 4.61 192,062 10.13 0.3284
2021-02-12 2020-12-31 13F WASTE CONNECTIONS COM 94106B101 1,700,219 -64,382 -3.65 174,391 -4.79 0.3095
2020-11-16 2020-09-30 13F WASTE CONNECTIONS COM 94106B101 1,764,601 -128,854 -6.81 183,166 3.14 0.3784
2020-08-14 2020-06-30 13F WASTE CONNECTIONS COM 94106B101 1,893,455 5,073 0.27 177,586 21.34 0.4137
2020-05-15 2020-03-31 13F WASTE CONNECTIONS COM 94106B101 1,888,382 -204,088 -9.75 146,349 -22.96 0.4484
2020-02-14 2019-12-31 13F WASTE CONNECTIONS COM 94106B101 2,092,470 28,021 1.36 189,974 0.02 0.4819
2019-11-14 2019-09-30 13F WASTE CONNECTIONS COM 94106B101 2,064,449 47,129 2.34 189,929 -1.44 0.5329
2019-08-12 2019-06-30 13F WASTE CONNECTIONS COM 94106B101 2,017,320 -68,773 -3.30 192,705 4.28 0.5514
2019-05-15 2019-03-31 13F WASTE CONNECTIONS COM 94106B101 2,086,093 34,153 1.66 184,787 21.32 0.5241
2019-02-13 2018-12-31 13F WASTE CONNECTIONS COM 94106B101 2,051,940 -59,653 -2.83 152,314 -9.53 0.5117
2018-11-13 2018-09-30 13F WASTE CONNECTIONS COM 94106B101 2,111,593 43,896 2.12 168,352 8.09 0.4790
2018-08-10 2018-06-30 13F WASTE CONNECTIONS COM 94106B101 2,067,697 33,296 1.64 155,749 6.84 0.4791
2018-06-28 2018-03-31 13F/A-1 WASTE CONNECTIONS COM 94106B101 2,034,401 31,988 1.60 145,784 2.65 0.4712
2018-05-14 2018-03-31 13F WASTE CONNECTIONS COM 94106B101 1,198,069 -804,344 85,853
2018-02-12 2017-12-31 13F WASTE CONNECTIONS COM 94106B101 2,002,413 28,756 1.46 142,021 2.85 0.4496
2017-11-13 2017-09-30 13F WASTE CONNECTIONS COM 94106B101 1,973,657 80,424 4.25 138,085 13.22 0.4579
2017-08-14 2017-06-30 13F WASTE CONNECTIONS COM 94106B101 1,893,233 619,235 48.61 121,963 8.51 0.3728
2017-05-15 2017-03-31 13F WASTE CONNECTIONS COM 94106B101 1,273,998 65,142 5.39 112,393 18.30 0.3833
2017-02-13 2016-12-31 13F WASTE CONNECTIONS COM 94106B101 1,208,856 69,326 6.08 95,004 11.61 0.3392
2016-11-14 2016-09-30 13F WASTE CONNECTIONS COM 94106B101 1,139,530 77,690 7.32 85,123 11.26 0.2926
2016-08-09 2016-06-30 13F WASTE CONNECTIONS COM 94106B101 1,061,840 -93,810 -8.12 76,506 2.50 0.2688
2016-05-13 2016-03-31 13F WASTE CONNECTIONS COM 941053100 1,155,650 -33,262 -2.80 74,643 11.48 0.2577
2016-02-08 2015-12-31 13F WASTE CONNECTIONS COM 941053100 1,188,912 25,349 2.18 66,959 18.46 0.2271
2015-11-13 2015-09-30 13F WASTE CONNECTIONS COM 941053100 1,163,563 16,848 1.47 56,526 4.62 0.2018
2015-08-11 2015-06-30 13F WASTE CONNECTIONS COM 941053100 1,146,715 -148,743 -11.48 54,031 -13.36 0.1759
2015-05-14 2015-03-31 13F WASTE CONNECTIONS COM 941053100 1,295,458 -4,795 -0.37 62,364 9.03 0.1985
2015-02-13 2014-12-31 13F/A-1 WASTE CONNECTIONS COM 941053100 1,300,253 -67,815 -4.96 57,198 -13.83 0.1803
2015-02-09 2014-12-31 13F WASTE CONNECTIONS COM 941053100 1,300,588 57,408
2014-11-10 2014-09-30 13F WASTE CONNECTIONS COM 941053100 1,368,068 -9,927 -0.72 66,379 -0.78 0.2133
2014-08-08 2014-06-30 13F WASTE CONNECTIONS COM 941053100 1,377,995 -8,027 -0.58 66,902 10.05 0.2104
2014-05-13 2014-03-31 13F WASTE CONNECTIONS COM 941053100 1,386,022 38,804 2.88 60,791 3.42 0.1937
2014-02-11 2013-12-31 13F WASTE CONNECTIONS COM 941053100 1,347,218 48,385 3.73 58,779 -0.34 0.1906
2013-11-08 2013-09-30 13F WASTE CONNECTIONS COM 941053100 1,298,833 103,199 8.63 58,980 19.90 0.2106
2013-08-13 2013-06-30 13F WASTE CONNECTIONS COM 941053100 1,195,634 1,195,634 49,189 0.1970
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.