Advanced Drainage Systems, Inc.
MX ˙ BMV ˙ US00790R1041
SecurityMX:WMS / Advanced Drainage Systems, Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership72,766 shares
Latest Disclosed Value $ 9,978,387
Fifth Third Bancorp reports 51.90% increase in ownership of WMS / Advanced Drainage Systems, Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 72,766 shares of Advanced Drainage Systems, Inc. (MX:WMS) valued at $9,978,387 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 47,903 shares of Advanced Drainage Systems, Inc.. This represents a change in shares of 51.90% 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)
2026-05-01 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 72,766 24,863 51.90 9,978 43.84 0.0182
2026-02-02 2025-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 47,903 10 0.02 6,938 4.44 0.0220
2025-11-07 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 47,893 75 0.16 6,643 20.94 0.0212
2025-07-15 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 47,818 -2,049 -4.11 5,492 1.37 0.0190
2025-04-15 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 49,867 206 0.41 5,418 -5.61 0.0206
2025-01-21 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 49,661 -4 -0.01 5,741 -26.46 0.0208
2024-10-17 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 49,665 -35,909 -41.96 7,805 -43.13 0.0283
2024-07-22 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 85,574 54 0.06 13,725 -6.82 0.0523
2024-04-23 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 85,520 -38,448 -31.01 14,730 -15.52 0.0576
2024-01-19 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 123,968 -109 -0.09 17,435 23.44 0.0742
2023-10-31 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 124,077 -2,776 -2.19 14,124 -2.15 0.0655
2023-07-26 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 126,853 -101 -0.08 14,433 35.01 0.0637
2023-04-24 2023-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 126,954 392 0.31 10,691 3.05 0.0498
2023-01-25 2022-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 126,562 2,899 2.34 10,374 -32.55 0.0499
2022-10-25 2022-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 123,663 -27,723 -18.31 15,380 12.80 0.0804
2022-08-04 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 151,386 -1,750 -1.14 13,635 -25.06 0.0659
2022-04-19 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 153,136 -10,341 -6.33 18,194 -18.24 0.0743
2022-02-01 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 163,477 -19,536 -10.67 22,254 12.41 0.0865
2021-10-15 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 183,013 50,000 37.59 19,797 27.68 0.0860
2021-08-06 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 133,013 -175 -0.13 15,505 12.60 0.0680
2021-05-07 2021-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 133,188 -34,711 -20.67 13,770 -1.87 0.0639
2021-02-16 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 167,899 -5,834 -3.36 14,033 29.36 0.0690
2020-11-09 2020-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 173,733 -877 -0.50 10,848 25.76 0.0599
2020-08-05 2020-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 174,610 -16,819 -8.79 8,626 53.05 0.0517
2020-05-05 2020-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 191,429 -30,539 -13.76 5,636 -34.62 0.0402
2020-02-14 2019-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 221,968 14,109 6.79 8,621 28.52 0.0480
2019-11-14 2019-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 207,859 17,101 8.96 6,708 7.24 0.0402
2019-08-07 2019-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 190,758 -35,191 -15.57 6,255 7.42 0.0382
2019-05-14 2019-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 225,949 -3,000 -1.31 5,823 4.88 0.0374
2019-02-14 2018-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 228,949 500 0.22 5,552 -21.35 0.0404
2018-11-14 2018-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 228,449 105,658 86.05 7,059 101.34 0.0449
2018-08-14 2018-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 122,791 -246,779 -66.77 3,506 -63.37 0.0238
2018-05-15 2018-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 369,570 335,570 986.97 9,572 1,080.27 0.0652
2018-02-14 2017-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 34,000 -5,000 -12.82 811 2.66 0.0055
2017-11-14 2017-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 39,000 5,000 14.71 790 15.67 0.0057
2017-08-11 2017-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 34,000 -107,500 -75.97 683 -77.96 0.0050
2017-05-12 2017-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 141,500 -142,500 -50.18 3,099 -47.03 0.0234
2017-02-13 2016-12-31 13F/A-1 ADVANCED DRAIN SYS INC DEL COM 00790R104 284,000 -1,810 -0.63 5,850 -14.93 0.0472
2017-02-09 2016-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 285,810 0 6,877 0.0569
2016-11-10 2016-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 285,810 1,180 0.41 6,877 -11.72 0.0569
2016-08-11 2016-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 284,630 255,630 881.48 7,790 1,160.52 0.0662
2016-05-13 2016-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 29,000 500 1.75 618 -9.78 0.0053
2016-02-16 2015-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 28,500 0 0.00 685 -16.97 0.0060
2015-11-13 2015-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 28,500 0 0.00 825 -1.32 0.0077
2015-08-14 2015-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 28,500 0 0.00 836 -1.99 0.0073
2015-05-14 2015-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 28,500 500 1.79 853 32.66 0.0074
2015-02-13 2014-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 28,000 27,000 2,700.00 643 2,961.90 0.0055
2014-11-17 2014-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,000 1,000 -94.67 21 -95.69 0.0002
2014-02-14 2013-12-31 13F WMS INDS COM 929297109 0 -18,751 -100.00 0 -100.00
2013-11-14 2013-09-30 13F WMS INDS COM 929297109 18,751 -493 -2.56 487 -0.81 0.0050
2013-08-14 2013-06-30 13F WMS INDS COM 929297109 19,244 19,244 491 0.0052
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.