Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionJupiter Asset Management Ltd
Latest Disclosed Ownership146,197 shares
Latest Disclosed Value $ 20,047,995
Jupiter Asset Management Ltd ownership in WMS / Advanced Drainage Systems, Inc.

On May 12, 2026 - Jupiter Asset Management Ltd filed a 13F-HR form disclosing ownership of 146,197 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $20,047,995 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 146,197 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of 0.00% 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)
2026-05-12 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM* 00790R104 146,197 0 0.00 20,048 -5.32 0.0845
2026-02-10 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 146,197 -25,436 -14.82 21,174 -11.06 0.1695
2025-11-10 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 171,633 0 0.00 23,805 20.76 0.2044
2025-08-08 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 171,633 -3,300 -1.89 19,714 3.72 0.1645
2025-05-09 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 174,933 -4,652 -2.59 19,006 -8.45 0.1822
2025-02-10 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 179,585 32,810 22.35 20,760 -10.00 0.2025
2024-11-12 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 146,775 -16,830 -10.29 23,067 -12.09 0.2021
2024-08-08 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 163,605 0 0.00 26,241 -6.88 0.2479
2024-05-10 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 163,605 -17,564 -9.69 28,179 10.60 0.2690
2024-02-09 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 181,169 -173 -0.10 25,480 23.43 0.2525
2023-11-09 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 181,342 -34,298 -15.91 20,642 -15.78 0.2284
2023-08-10 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 215,640 -1,785 -0.82 24,512 33.93 0.2679
2023-05-10 2023-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 217,425 85,484 64.79 18,303 69.32 0.2529
2023-02-10 2022-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 131,941 -2,040 -1.52 10,810 -35.13 0.1581
2022-11-10 2022-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 133,981 -67,278 -33.43 16,663 -8.11 0.2576
2022-08-10 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 201,259 -2,614 -1.28 18,133 -25.14 0.2551
2022-05-11 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 203,873 38,325 23.15 24,222 8.79 0.2874
2022-02-11 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 165,548 165,548 22,265 0.2443
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.