Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionJpmorgan Chase & Co
Latest Disclosed Ownership292,566 shares
Latest Disclosed Value $ 38,460,732
Jpmorgan Chase & Co reports 14.62% increase in ownership of WMS / Advanced Drainage Systems, Inc.

On May 13, 2026 - Jpmorgan Chase & Co filed a 13F-HR/A form disclosing ownership of 292,566 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $38,460,732 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 255,248 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of 14.62% 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)
2026-05-13 2026-03-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 292,566 37,318 14.62 38,461 4.04 0.0003
2026-02-11 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 255,248 6,052 2.43 36,968 6.95 0.0023
2025-11-26 2025-09-30 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 249,196 -3,359 -1.33 34,565 19.15 0.0021
2025-11-07 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 249,196 -3,359 34,565 0.0002
2025-08-12 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 252,555 -14,312 -5.36 29,010 0.05 0.0019
2025-05-12 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 266,867 -6,381 -2.34 28,995 -8.21 0.0021
2025-02-12 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 273,248 22,798 9.10 31,587 -19.75 0.0024
2024-12-26 2024-09-30 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 250,450 -8,722 -3.37 39,361 -5.31 0.0030
2024-11-08 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 250,450 -8,722 39,361 0.0030
2024-12-26 2024-06-30 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 259,172 20,383 8.54 41,569 1.07 0.0034
2024-08-12 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 259,172 20,383 41,569 0.0034
2024-12-26 2024-03-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 238,789 -476,389 -66.61 41,129 -59.11 0.0035
2024-05-10 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 238,789 -476,389 41,129 0.0035
2024-12-26 2023-12-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 715,178 47,702 7.15 100,583 32.38 0.0096
2024-02-12 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 715,178 47,702 100,583 0.0097
2023-11-14 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 667,476 5,708 0.86 75,979 0.91 0.0084
2023-08-11 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 661,768 3,061 0.46 75,296 35.74 0.0082
2023-05-18 2023-03-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 658,707 120,259 22.33 55,469 125,965.91 0.0068
2023-05-11 2023-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 551,188 12,740 55,469 0.0008
2023-02-13 2022-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 538,448 -846,550 -61.12 44 -99.97 0.0058
2022-11-14 2022-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,384,998 -128,825 -8.51 172,253 26.33 0.0247
2022-08-11 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,513,823 -169,073 -10.05 136,350 -31.81 0.0190
2022-05-11 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,682,896 -47,910 -2.77 199,945 -15.14 0.0241
2022-02-11 2021-12-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,730,806 553,911 47.07 235,614 85.08 0.0272
2022-02-10 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,730,806 553,911 235,614 0.0270
2021-11-12 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,176,895 -117,737 -9.09 127,304 -15.65 0.0157
2021-08-12 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,294,632 -795,401 -38.06 150,916 -30.16 0.0180
2021-05-12 2021-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,090,033 -173,958 -7.68 216,088 14.20 0.0288
2021-02-19 2020-12-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,263,991 151,471 7.17 189,224 47.18 0.0278
2021-02-11 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,263,991 151,471 189,224 4,679.6444
2020-11-12 2020-09-30 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,112,520 98,815 4.91 128,567 29.24 0.0216
2020-11-12 2020-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,112,520 128,567
2020-08-11 2020-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,013,705 -104,838 -4.95 99,477 59.49 0.0192
2020-05-12 2020-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,118,543 -78,231 -3.56 62,370 -26.90 0.0146
2020-02-11 2019-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,196,774 142,377 6.93 85,323 28.70 0.0159
2019-11-12 2019-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 2,054,397 165,861 8.78 66,296 8.78 0.0132
2019-08-07 2019-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,888,536 5,771 0.31 60,943 25.61 0.0119
2019-05-07 2019-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,882,765 -5,547 -0.29 48,519 5.96 0.0099
2019-02-11 2018-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,888,312 -54,816 -2.82 45,791 -23.73 0.0106
2018-11-13 2018-09-30 13F/A-1 ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,943,128 219,049 12.71 60,041 21.98 0.0115
2018-11-07 2018-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,943,128 219,049 60,041
2018-08-14 2018-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,724,079 373,179 27.62 49,222 40.68 0.0101
2018-05-10 2018-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,350,900 49,634 3.81 34,989 12.74 0.0075
2018-02-13 2017-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,301,266 61,165 4.93 31,036 19.75 0.0065
2017-11-09 2017-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,240,101 100,044 8.78 25,918 13.10 0.0057
2017-08-09 2017-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,140,057 -118,576 -9.42 22,915 -16.87 0.0052
2017-05-10 2017-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,258,633 386,541 44.32 27,564 53.43 0.0063
2017-02-06 2016-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 872,092 -53,421 -5.77 17,965 -19.32 0.0043
2016-11-04 2016-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 925,513 35,059 3.94 22,267 -8.64 0.0055
2016-08-08 2016-06-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 890,454 392,451 78.80 24,372 129.75 0.0061
2016-05-10 2016-03-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 498,003 -1,067,095 -68.18 10,608 -71.79 0.0027
2016-02-12 2015-12-31 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,565,098 39,212 2.57 37,609 -14.80 0.0094
2015-11-13 2015-09-30 13F ADVANCED DRAIN SYS INC DEL COMMON 00790R104 1,525,886 -93,201 -5.76 44,144 -7.04 0.0118
2015-08-14 2015-06-30 13F ADVANCED DRAINAGE SYSTEMS IN COMMON 00790R104 1,619,087 1,526,078 1,640.79 47,487 1,605.10 0.0112
2015-05-15 2015-03-31 13F ADVANCED DRAINAGE SYSTEMS IN COMMON 00790R104 93,009 50,155 117.04 2,785 182.74 0.0006
2015-02-13 2014-12-31 13F ADVANCED DRAINAGE SYSTEMS IN COMMON 00790R104 42,854 42,854 -94.49 985 -95.12 0.0002
2014-02-26 2013-12-31 13F/A-1 WMS INDUSTRIES COMMON 929297109 0 -777,310 -100.00 0 -100.00
2013-10-31 2013-09-30 13F WMS INDUSTRIES COMMON 929297109 777,310 126,100 19.36 20,171 21.43 0.0060
2013-08-13 2013-06-30 13F WMS INDUSTRIES COMMON 929297109 651,210 651,210 16,611 0.0053
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.