Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionUmb Bank N A/mo
Latest Disclosed Ownership1,126 shares
Latest Disclosed Value $ 154,408
Umb Bank N A/mo reports 4.09% decrease in ownership of WMS / Advanced Drainage Systems, Inc.

On May 11, 2026 - Umb Bank N A/mo filed a 13F-HR form disclosing ownership of 1,126 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $154,408 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,174 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of -4.09% 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)
2026-05-11 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,126 -48 -4.09 154 -9.41 0.0019
2026-02-13 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,174 111 10.44 170 15.65 0.0023
2025-11-04 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,063 -11 -1.02 147 19.51 0.0022
2025-07-11 2025-06-30 13F/A-01 ADVANCED DRAIN SYS INC DEL COM 00790R104 1,074 -491 -31.37 123 -27.65 0.0019
2025-07-10 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,565 0 170 0.0025
2025-04-14 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,565 784 100.38 170 88.89 0.0028
2025-01-16 2024-12-31 13F Advanced Drainage Systems COM 00790R104 781 88 12.70 90 -16.67 0.0014
2024-10-09 2024-09-30 13F Advanced Drainage Systems COM 00790R104 693 118 20.52 109 17.39 0.0017
2024-07-29 2024-06-30 13F Advanced Drainage Systems COM 00790R104 575 4 0.70 92 -6.12 0.0015
2024-04-26 2024-03-31 13F Advanced Drainage Systems COM 00790R104 571 17 3.07 98 27.27 0.0016
2024-01-23 2023-12-31 13F Advanced Drainage Systems COM 00790R104 554 0 0.00 78 22.22 0.0011
2023-10-18 2023-09-30 13F Advanced Drainage Systems COM 00790R104 554 0 0.00 63 0.00 0.0010
2023-07-25 2023-06-30 13F Advanced Drainage Systems COM 00790R104 554 0 0.00 63 36.96 0.0010
2023-04-11 2023-03-31 13F Advanced Drainage Systems COM 00790R104 554 0 0.00 47 0.0007
2023-01-10 2022-12-31 13F Advanced Drainage Systems COM 00790R104 554 0 0.00 0 -100.00 0.0007
2022-10-13 2022-09-30 13F Advanced Drainage Systems COM 00790R104 554 -75 -11.92 69 21.05 0.0012
2022-07-20 2022-06-30 13F Advanced Drainage Systems COM 00790R104 629 0 0.00 57 -24.00 0.0009
2022-04-22 2022-03-31 13F Advanced Drainage Systems COM 00790R104 629 0 0.00 75 -12.79 0.0010
2022-02-09 2021-12-31 13F Advanced Drainage Systems COM 00790R104 629 629 86 0.0011
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.