Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionCommonwealth Equity Services, Llc
Latest Disclosed Ownership4,126 shares
Latest Disclosed Value $ 597,570
Commonwealth Equity Services, Llc reports 56.19% decrease in ownership of WMS / Advanced Drainage Systems, Inc.

On February 12, 2026 - Commonwealth Equity Services, Llc filed a 13F-HR form disclosing ownership of 4,126 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $597,570 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 22, 2025 disclosing 9,418 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of -56.19% 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)
2026-02-12 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 4,126 -5,292 -56.19 598 59,600.00 0.0008
2025-10-22 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 9,418 1,036 12.36 1 0.0017
2025-08-06 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 8,382 74 0.89 1 0.0013
2025-05-09 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 8,308 -504 -5.72 1 -100.00 0.0013
2025-02-10 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 8,812 -3,981 -31.12 1 -50.00 0.0015
2024-10-18 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 12,793 -2,229 -14.84 2 0.00 0.0030
2024-07-31 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 15,022 3,107 26.08 2 0.00 0.0038
2024-04-29 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 11,915 1,360 12.88 2 100.00 0.0034
2024-02-06 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 10,555 672 6.80 1 0.00 0.0027
2023-10-23 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 9,883 -926 -8.57 1 0.00 0.0023
2023-08-10 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 10,809 -13 -0.12 1 0.0025
2023-05-11 2023-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 10,822 2,866 36.02 1 0.0019
2023-02-07 2022-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 7,956 -905 -10.21 1 -100.00 0.0016
2022-11-14 2022-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 8,861 5,817 191.10 1,102 302.19 0.0028
2022-07-19 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,044 -385 -11.23 274 -32.68 0.0007
2022-05-04 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,429 329 10.61 407 -3.55 0.0009
2022-01-31 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,100 708 29.60 422 63.57 0.0010
2021-10-29 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,392 -1,273 -34.73 258 -39.58 0.0006
2021-08-11 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,665 3,665 427 0.0011
2021-02-11 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -19,320 -100.00 0 -100.00
2020-11-05 2020-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 19,320 6,235 47.65 1,206 86.69 0.0041
2020-08-12 2020-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 13,085 5,361 69.41 646 184.58 0.0024
2020-05-11 2020-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 7,724 1,724 28.73 227 -2.58 0.0011
2020-02-05 2019-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 6,000 -3,036 -33.60 233 -19.93 0.0009
2019-10-30 2019-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 9,036 -3,822 -29.72 291 -30.88 0.0012
2019-07-19 2019-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 12,858 550 4.47 421 32.81 0.0019
2019-05-13 2019-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 12,308 35 0.29 317 6.73 0.0015
2019-02-11 2018-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 12,273 35 0.29 297 -21.43 0.0016
2018-11-06 2018-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 12,238 -3,788 -23.64 378 -17.47 0.0018
2018-07-31 2018-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 16,026 192 1.21 458 11.71 0.0024
2018-05-14 2018-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 15,834 15,834 410 0.0022
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.