고급 배수 시스템, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionHsbc Holdings Plc
Latest Disclosed Ownership37,093 shares
Latest Disclosed Value $ 5,052,645
Hsbc Holdings Plc reports 61.58% increase in ownership of WMS / Advanced Drainage Systems, Inc.

On April 30, 2026 - Hsbc Holdings Plc filed a 13F-HR form disclosing ownership of 37,093 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $5,052,645 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 20, 2026 disclosing 22,956 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of 61.58% during the quarter.

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)
2026-04-30 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 37,093 14,137 61.58 5,053 51.99 0.0004
2026-03-20 2025-12-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COM 00790R104 22,956 -32,590 -58.67 3,325 -56.83 0.0002
2026-03-06 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 22,956 -32,590 -58.67 3,325 -56.83 0.0002
2025-11-13 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 55,546 -31,119 -35.91 7,701 -22.56 0.0006
2025-08-13 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 86,665 -4,366 -4.80 9,943 0.60 0.0060
2025-05-14 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 91,031 18,997 26.37 9,884 18.70 0.0061
2025-02-14 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 72,034 -8,006 -10.00 8,327 -33.85 0.0048
2024-11-14 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 80,040 39,983 99.82 12,588 95.62 0.0073
2024-08-12 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 40,057 -29,392 -42.32 6,436 -46.26 0.0039
2024-05-15 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 69,449 -50,410 -42.06 11,974 -29.21 0.0081
2024-02-12 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 119,859 3,800 3.27 16,915 27.86 0.0147
2023-11-13 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 116,059 61,900 114.29 13,230 114.55 0.0138
2023-08-11 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 54,159 1,633 3.11 6,167 39.41 0.0063
2023-05-15 2023-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 52,526 -75,836 -59.08 4,423 -57.76 0.0053
2023-02-14 2022-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 128,362 94,894 283.54 10,470 150.24 0.0120
2022-11-14 2022-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 33,468 21,188 172.54 4,184 276.60 0.0068
2022-08-11 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 12,280 6,342 106.80 1,111 53.88 0.0016
2022-05-16 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 5,938 90 1.54 722 -9.18 0.0009
2022-02-11 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 5,848 -43 -0.73 795 24.41 0.0007
2021-11-12 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 5,891 -1,453 -19.78 639 -25.18 0.0006
2021-08-13 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 7,344 7,344 854 0.0009
2021-05-14 2021-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -6,766 -100.00 0 -100.00
2021-02-25 2020-12-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COM 00790R104 6,766 -7,605 -52.92 568 -37.24 0.0008
2021-02-12 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 6,766 -7,605 568 134.8641
2020-11-12 2020-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 14,371 -18,353 -56.08 905 -44.03 0.0014
2020-08-14 2020-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 32,724 -413 -1.25 1,617 67.74 0.0031
2020-05-15 2020-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 33,137 -8,489 -20.39 964 -40.75 0.0022
2020-02-14 2019-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 41,626 10,160 32.29 1,627 60.14 0.0028
2019-11-14 2019-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 31,466 21,739 223.49 1,016 218.50 0.0019
2019-08-13 2019-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 9,727 -140 -1.42 319 25.10 0.0006
2019-05-15 2019-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 9,867 9,867 1.44 255 -20.06 0.0005
2019-02-13 2018-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -6,542 -100.00 0 -100.00
2018-11-13 2018-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 6,542 -1,344 -17.04 203 -9.78 0.0003
2018-08-10 2018-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 7,886 -98 -1.23 225 8.70 0.0004
2018-05-11 2018-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 7,984 7,984 207 0.0003
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.