Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionValeo Financial Advisors, LLC
Latest Disclosed Ownership1,674 shares
Latest Disclosed Value $ 229,533
Valeo Financial Advisors, LLC reports 8.27% decrease in ownership of WMS / Advanced Drainage Systems, Inc.

On May 8, 2026 - Valeo Financial Advisors, LLC filed a 13F-HR form disclosing ownership of 1,674 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $229,533 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 1,825 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of -8.27% 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)
2026-05-08 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 1,674 -151 -8.27 230 -13.26 0.0055
2026-02-04 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 1,825 -440 -19.43 264 -15.92 0.0059
2025-11-03 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 2,265 -3,046 -57.35 314 -48.52 0.0072
2025-09-12 2025-06-30 13F/A-1 ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 5,311 3,064 136.36 610 150.00 0.0150
2025-07-22 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 5,275 3,028 606 0.0146
2025-04-30 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 2,247 -57 -2.47 244 -8.27 0.0068
2025-01-30 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 2,304 -329 -12.50 266 -35.59 0.0074
2024-10-10 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 2,633 2,633 414 0.0118
2024-04-25 2024-03-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 0 -3,526 -100.00 0 -100.00
2024-04-19 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 0 0
2024-01-29 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 3,526 504 16.68 496 44.31 0.0200
2023-10-20 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 3,022 -997 -24.81 344 -24.95 0.0157
2023-07-14 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 4,019 790 24.47 457 68.63 0.0209
2023-04-17 2023-03-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 3,229 -3,157 -49.44 272 -48.18 0.0131
2023-02-09 2022-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 6,386 6,386 523 0.0287
2022-01-07 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 0 -2,513 -100.00 0 -100.00
2021-11-02 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 2,513 -1,496 -37.32 272 -41.76 0.0155
2021-07-22 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 4,009 2,504 166.38 467 199.36 0.0283
2021-04-12 2021-03-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 1,505 1,005 201.00 156 271.43 0.0072
2021-02-11 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 500 320 177.78 42 281.82 0.0022
2020-10-28 2020-09-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 180 180 11 0.0010
2020-07-20 2020-06-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 0 -6,057 -100.00 0 -100.00
2020-04-13 2020-03-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 6,057 5,608 1,249.00 218 1,182.35 0.0232
2020-01-24 2019-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 449 -3,950 -89.79 17 -88.03 0.0017
2019-10-15 2019-09-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 4,399 -2,987 -40.44 142 -41.32 0.0157
2019-07-10 2019-06-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 7,386 -2,714 -26.87 242 -6.92 0.0277
2019-04-12 2019-03-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 10,100 -4,969 -32.97 260 -28.77 0.0316
2019-01-30 2018-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 15,069 2,041 15.67 365 0.83 0.0512
2018-11-01 2018-09-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 13,028 2,028 18.44 362 7.10 0.0489
2018-08-14 2018-06-30 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 11,000 5,000 83.33 338 118.06 0.0474
2018-04-12 2018-03-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 6,000 -6,500 -52.00 155 -47.99 0.0249
2018-02-09 2017-12-31 13F ADVANCED DRAIN SYS INC DEL COM Stock 00790R104 12,500 12,500 298 0.0489
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.