Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-04-29 4:40 pm Purchase | 2026-03-31 | 13G | ADVANCED DRAIN SYS INC WMS | Vanguard Capital Management | 3,979,172 5.100% | 3,979,172![]() (New Position) | Filing History |
| 2026-03-26 3:12 pm Sale | 2026-03-13 | 13G | ADVANCED DRAIN SYS INC WMS | VANGUARD GROUP INC | 0 0.000% | -6,870,070![]() (Position Closed) | Filing History |
| 2026-02-13 2:41 pm Unchanged | 2025-12-31 | 13G | ADVANCED DRAIN SYS INC WMS | Advanced Drainage Systems Inc. Employee Stock Ownership Plan Trust | 4,629,213 6.000% | 0 (Unchanged) | Filing History |
| 2025-07-17 7:44 pm Sale | 2025-06-30 | 13G | ADVANCED DRAIN SYS INC WMS | BlackRock, Inc. BLK | 6,885,292 8.900% | -977,603![]() (-12.43%) | Filing History |
| 2024-11-14 5:26 pm Sale | 2024-09-30 | 13G | ADVANCED DRAIN SYS INC WMS | PRINCIPAL FINANCIAL GROUP INC PFG | 5,464,241 7.050% | -1,545,071![]() (-22.04%) | Filing History |
| 2024-08-07 4:07 pm Purchase | 2024-07-31 | 13G | ADVANCED DRAIN SYS INC WMS | BlackRock, Inc. BLK | 7,862,895 10.200% | 876,579![]() (+12.55%) | Filing History |
| 2024-02-13 4:55 pm Purchase | 2023-12-29 | 13G | ADVANCED DRAIN SYS INC WMS | VANGUARD GROUP INC | 6,870,070 8.820% | 203,872![]() (+3.06%) | Filing History |
| 2024-02-09 2:25 pm Sale | 2023-12-31 | 13G | ADVANCED DRAIN SYS INC WMS | PRINCIPAL FINANCIAL GROUP INC PFG | 7,009,312 9.000% | -1,763,640![]() (-20.10%) | Filing History |
| 2024-01-25 1:48 pm Purchase | 2023-12-31 | 13G | ADVANCED DRAIN SYS INC WMS | BlackRock, Inc. BLK | 6,986,316 9.000% | 4,014,281![]() (+135.07%) | Filing History |
| 2023-02-09 10:54 am Purchase | 2022-12-30 | 13G | ADVANCED DRAIN SYS INC WMS | VANGUARD GROUP INC | 6,666,198 8.050% | 1,905,155![]() (+40.02%) | Filing History |
| 2023-02-07 3:23 pm Purchase | 2022-12-31 | 13G | ADVANCED DRAIN SYS INC WMS | PRINCIPAL FINANCIAL GROUP INC PFG | 8,772,952 10.800% | 8,772,952![]() (New Position) | Filing History |
| 2022-09-09 4:46 pm Sale | 2022-09-07 | 13D | ADVANCED DRAIN SYS INC WMS | Berkshire Partners Holdings LLC | 3,436,377 4.100% | -754,720![]() (-18.01%) | Filing History |
| 2022-08-18 4:25 pm Sale | 2022-08-16 | 13D | ADVANCED DRAIN SYS INC WMS | Berkshire Partners Holdings LLC | 4,191,097 5.000% | -1,000,000![]() (-19.26%) | Filing History |
| 2022-06-14 5:08 pm Sale | 2022-06-07 | 13D | ADVANCED DRAIN SYS INC WMS | Berkshire Partners Holdings LLC | 5,191,097 6.200% | -1,302,270![]() (-20.06%) | Filing History |
| 2022-02-14 10:26 am Sale | 2021-12-31 | 13G | ADVANCED DRAIN SYS INC WMS | CHLAPATY JOSEPH A | 3,128,081 4.300% | -3,252,000![]() (-50.97%) | Filing History |
| 2022-02-14 10:20 am Sale | 2021-12-31 | 13G | ADVANCED DRAIN SYS INC WMS | ADVANCED DRAINAGE SYSTEMS INC. EMPLOYEE STOCK OWNERSHIP PLAN | 12,370,592 17.100% | -2,981,072![]() (-19.42%) | Filing History |
| 2022-02-09 3:15 pm Purchase | 2021-12-31 | 13G | ADVANCED DRAIN SYS INC WMS | VANGUARD GROUP INC | 4,761,043 6.680% | 517,441![]() (+12.19%) | Filing History |
| 2021-12-16 4:42 pm Sale | 2021-12-14 | 13D | ADVANCED DRAIN SYS INC WMS | Berkshire Partners Holdings LLC | 6,493,367 9.100% | -1,390,000![]() (-17.63%) | Filing History |

