Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionEnvestnet Asset Management Inc
Latest Disclosed Ownership85,712 shares
Latest Disclosed Value $ 11,753,702
Envestnet Asset Management Inc reports 36.19% increase in ownership of WMS / Advanced Drainage Systems, Inc.

On May 4, 2026 - Envestnet Asset Management Inc filed a 13F-HR form disclosing ownership of 85,712 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $11,753,702 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 62,935 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of 36.19% 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)
2026-05-04 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 85,712 22,777 36.19 11,754 28.97 0.0031
2026-02-10 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 62,935 -39,116 -38.33 9,113 -35.62 0.0027
2025-11-05 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 102,051 -4,654 -4.36 14,154 15.49 0.0041
2025-08-01 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 106,705 36,000 50.92 12,256 59.54 0.0036
2025-04-29 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 70,705 7,165 11.28 7,682 4.59 0.0025
2025-02-13 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 63,540 308 0.49 7,345 -26.08 0.0024
2024-11-07 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 63,232 -460 -0.72 9,938 -2.72 0.0032
2024-08-08 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 63,692 851 1.35 10,216 -5.62 0.0036
2024-05-13 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 62,841 14,492 29.97 10,824 59.19 0.0040
2024-02-13 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 48,349 4,782 10.98 6,800 37.10 0.0028
2023-11-13 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 43,567 5,382 14.09 4,959 14.16 0.0023
2023-08-04 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 38,185 -6,033 -13.64 4,345 16.68 0.0019
2023-05-11 2023-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 44,218 -1,519 -3.32 3,724 -0.69 0.0018
2023-02-07 2022-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 45,737 3,021 7.07 3,749 -29.44 0.0019
2022-11-10 2022-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 42,716 1,020 2.45 5,313 41.45 0.0030
2022-08-03 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 41,696 998 2.45 3,756 -22.32 0.0021
2022-05-04 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 40,698 3,423 9.18 4,835 -4.71 0.0024
2022-02-04 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 37,275 3,252 9.56 5,074 37.88 0.0025
2021-10-07 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 34,023 8,780 34.78 3,680 25.04 0.0020
2021-08-04 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 25,243 13,458 114.20 2,943 141.63 0.0017
2021-05-04 2021-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 11,785 -813 -6.45 1,218 15.67 0.0008
2021-02-02 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 12,598 1,565 14.18 1,053 52.83 0.0008
2020-10-09 2020-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 11,033 -615 -5.28 689 19.83 0.0006
2020-07-08 2020-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 11,648 -623 -5.08 575 59.28 0.0006
2020-04-23 2020-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 12,271 12,271 -26.02 361 -16.05 0.0004
2014-02-12 2013-12-31 13F WMS Industries COM 929297109 0 -16,588 -100.00 0 -100.00
2013-11-12 2013-09-30 13F WMS Industries COM 929297109 16,588 129 0.78 430 2.38 0.0052
2013-08-09 2013-06-30 13F WMS Industries COM 929297109 16,459 16,459 420 0.0054
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.