Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionUs Bancorp \de\
Latest Disclosed Ownership3,158 shares
Latest Disclosed Value $ 433,056
Us Bancorp \de\ reports 3.64% increase in ownership of WMS / Advanced Drainage Systems, Inc.

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 3,158 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $433,056 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 3,047 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of 3.64% 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)
2026-05-14 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,158 111 3.64 433 -1.81 0.0002
2026-01-30 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,047 96 3.25 441 7.82 0.0005
2025-11-12 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,951 -7 -0.24 409 20.65 0.0005
2025-07-24 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,958 941 46.65 340 54.79 0.0004
2025-05-08 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,017 109 5.71 219 -0.45 0.0003
2025-02-05 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,908 -395 -17.15 221 -39.06 0.0003
2024-10-28 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,303 -90 -3.76 362 -5.74 0.0005
2024-08-07 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,393 -82 -3.31 384 -10.09 0.0005
2024-05-08 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,475 262 11.84 426 36.98 0.0006
2024-02-09 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,213 -331 -13.01 311 7.61 0.0005
2023-11-03 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,544 877 52.61 290 52.91 0.0005
2023-08-10 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,667 -2,418 -59.19 190 -44.90 0.0003
2023-05-09 2023-03-31 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 4,085 -839 -17.04 344 -14.89 0.0006
2023-02-13 2022-12-31 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 4,924 -4,957 -50.17 404 -67.21 0.0007
2022-10-27 2022-09-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 9,881 -159 -1.58 1,229 35.95 0.0025
2022-08-01 2022-06-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 10,040 -64 -0.63 904 -24.73 0.0018
2022-05-11 2022-03-31 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 10,104 1,432 16.51 1,201 1.78 0.0020
2022-02-11 2021-12-31 13F ADVANCED DRAINAGE SYSTEMS COMMON STOCK 00790R104 8,672 3,649 72.65 1,180 117.31 0.0019
2021-11-10 2021-09-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 5,023 444 9.70 543 1.69 0.0010
2021-08-05 2021-06-30 13F ADVANCED DRAINAGE SYSTEMS COMMON STOCK 00790R104 4,579 807 21.39 534 36.92 0.0010
2021-04-28 2021-03-31 13F ADVANCED DRAINAGE SYSTEMS COMMON STOCK 00790R104 3,772 2,792 284.90 390 375.61 0.0008
2021-02-04 2020-12-31 13F ADVANCED DRAINAGE SYSTEMS COMMON STOCK 00790R104 980 218 28.61 82 74.47 0.0002
2020-11-10 2020-09-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 762 598 364.63 47 487.50 0.0001
2020-08-07 2020-06-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 164 110 203.70 8 300.00 0.0000
2020-05-13 2020-03-31 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 54 0 0.00 2 0.00 0.0000
2020-02-04 2019-12-31 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 54 0 0.00 2 0.00 0.0000
2019-11-08 2019-09-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 54 54 2 0.0000
2016-02-10 2015-12-31 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 0 -2,696 -100.00 0 -100.00
2015-11-16 2015-09-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 2,696 552 25.75 78 23.81 0.0003
2015-08-10 2015-06-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON STOCK 00790R104 2,144 2,144 -72.11 63 -68.50 0.0002
2014-02-13 2013-12-31 13F WMS INDS COMMON STOCK 929297109 0 -7,688 -100.00 0 -100.00
2013-11-07 2013-09-30 13F WMS INDS COMMON STOCK 929297109 7,688 -622 -7.48 200 -6.10 0.0009
2013-08-09 2013-06-30 13F WMS INDS COMMON STOCK 929297109 8,310 8,310 213 0.0010
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.