Advanced Drainage Systems, Inc.
DE ˙ XTRA ˙ US00790R1041
113,00 € ↑0,80 (0,71%)
2026-06-05
DEL PRIS
SecurityDE:6DA / Advanced Drainage Systems, Inc.
InstitutionAssenagon Asset Management S.A.
Latest Disclosed Ownership9,032 shares
Latest Disclosed Value $ 1,238,558
Assenagon Asset Management S.A. ownership in 6DA / Advanced Drainage Systems, Inc.

On April 20, 2026 - Assenagon Asset Management S.A. filed a 13F-HR form disclosing ownership of 9,032 shares of Advanced Drainage Systems, Inc. (DE:6DA) valued at $1,070,292 USD as of March 31, 2026. The entity filed a previous 13F-HR on October 7, 2025 disclosing 0 shares of Advanced Drainage Systems, Inc.. The current value of the position is $1,020,616 USD.

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)
2026-04-20 2026-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 9,032 9,032 1,239 0.0019
2025-10-07 2025-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -100.00 0
2025-07-11 2025-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,371 1,474 77.70 387 87.86 0.0006
2025-04-15 2025-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 1,897 -94,867 -98.04 206 -98.16 0.0003
2025-01-14 2024-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 96,764 32,418 50.38 11,186 10.61 0.0180
2024-10-23 2024-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 64,346 45,993 250.60 10,113 243.59 0.0186
2024-07-18 2024-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 18,353 16,315 800.54 2,944 738.46 0.0066
2024-04-24 2024-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,038 -458 -18.35 351 0.00 0.0008
2024-01-17 2023-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,496 -210 -7.76 351 13.96 0.0009
2023-11-06 2023-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 2,706 -462 -14.58 308 -14.44 0.0010
2023-07-25 2023-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,168 -45,062 -93.43 360 -91.14 0.0012
2023-04-18 2023-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 48,230 42,923 808.80 4,061 0.0144
2023-01-12 2022-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 5,307 1,662 45.60 0 -100.00 0.0016
2022-10-27 2022-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 3,645 -1,899 -34.25 453 -9.22 0.0017
2022-07-27 2022-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 5,544 -30,261 -84.52 499 -88.27 0.0018
2022-04-25 2022-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 35,805 35,805 4,254 0.0118
2022-02-01 2021-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -18,727 -100.00 0 -100.00
2021-10-19 2021-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 18,727 18,727 2,026 0.0065
2021-07-15 2021-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -40,493 -100.00 0 -100.00
2021-04-26 2021-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 40,493 40,493 4,187 0.0170
2021-02-01 2020-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -59,749 -100.00 0 -100.00
2020-10-07 2020-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 59,749 59,749 3,731 0.0209
2020-07-21 2020-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -55,596 -100.00 0 -100.00
2020-04-17 2020-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 55,596 -11,820 -17.53 1,637 -37.47 0.0131
2020-01-17 2019-12-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 67,416 22,801 51.11 2,618 81.81 0.0165
2019-10-16 2019-09-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 44,615 44,615 1,440 0.0096
2019-08-12 2019-06-30 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 0 -28,900 -100.00 0 -100.00
2019-04-26 2019-03-31 13F ADVANCED DRAIN SYS INC DEL COM 00790R104 28,900 28,900 745 0.0070
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.