ADVANCED DRAINAGE SYSTEMS INC. (WMS) - 13D/13G Filings

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
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Time period
Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-04-29
4:40 pm
Purchase
2026-03-3113GADVANCED DRAIN SYS INC
WMS
Vanguard Capital Management3,979,172
5.100%
3,979,172increase
(New Position)
Filing
History
2026-03-26
3:12 pm
Sale
2026-03-1313GADVANCED DRAIN SYS INC
WMS
VANGUARD GROUP INC0
0.000%
-6,870,070decrease
(Position Closed)
Filing
History
2026-02-13
2:41 pm
Unchanged
2025-12-3113GADVANCED DRAIN SYS INC
WMS
Advanced Drainage Systems Inc. Employee Stock Ownership Plan Trust4,629,213
6.000%
0
(Unchanged)
Filing
History
2025-07-17
7:44 pm
Sale
2025-06-3013GADVANCED DRAIN SYS INC
WMS
BlackRock, Inc.
BLK
6,885,292
8.900%
-977,603decrease
(-12.43%)
Filing
History
2024-11-14
5:26 pm
Sale
2024-09-3013GADVANCED DRAIN SYS INC
WMS
PRINCIPAL FINANCIAL GROUP INC
PFG
5,464,241
7.050%
-1,545,071decrease
(-22.04%)
Filing
History
2024-08-07
4:07 pm
Purchase
2024-07-3113GADVANCED DRAIN SYS INC
WMS
BlackRock, Inc.
BLK
7,862,895
10.200%
876,579increase
(+12.55%)
Filing
History
2024-02-13
4:55 pm
Purchase
2023-12-2913GADVANCED DRAIN SYS INC
WMS
VANGUARD GROUP INC6,870,070
8.820%
203,872increase
(+3.06%)
Filing
History
2024-02-09
2:25 pm
Sale
2023-12-3113GADVANCED DRAIN SYS INC
WMS
PRINCIPAL FINANCIAL GROUP INC
PFG
7,009,312
9.000%
-1,763,640decrease
(-20.10%)
Filing
History
2024-01-25
1:48 pm
Purchase
2023-12-3113GADVANCED DRAIN SYS INC
WMS
BlackRock, Inc.
BLK
6,986,316
9.000%
4,014,281increase
(+135.07%)
Filing
History
2023-02-09
10:54 am
Purchase
2022-12-3013GADVANCED DRAIN SYS INC
WMS
VANGUARD GROUP INC6,666,198
8.050%
1,905,155increase
(+40.02%)
Filing
History
2023-02-07
3:23 pm
Purchase
2022-12-3113GADVANCED DRAIN SYS INC
WMS
PRINCIPAL FINANCIAL GROUP INC
PFG
8,772,952
10.800%
8,772,952increase
(New Position)
Filing
History
2022-09-09
4:46 pm
Sale
2022-09-0713DADVANCED DRAIN SYS INC
WMS
Berkshire Partners Holdings LLC3,436,377
4.100%
-754,720decrease
(-18.01%)
Filing
History
2022-08-18
4:25 pm
Sale
2022-08-1613DADVANCED DRAIN SYS INC
WMS
Berkshire Partners Holdings LLC4,191,097
5.000%
-1,000,000decrease
(-19.26%)
Filing
History
2022-06-14
5:08 pm
Sale
2022-06-0713DADVANCED DRAIN SYS INC
WMS
Berkshire Partners Holdings LLC5,191,097
6.200%
-1,302,270decrease
(-20.06%)
Filing
History
2022-02-14
10:26 am
Sale
2021-12-3113GADVANCED DRAIN SYS INC
WMS
CHLAPATY JOSEPH A3,128,081
4.300%
-3,252,000decrease
(-50.97%)
Filing
History
2022-02-14
10:20 am
Sale
2021-12-3113GADVANCED DRAIN SYS INC
WMS
ADVANCED DRAINAGE SYSTEMS INC. EMPLOYEE STOCK OWNERSHIP PLAN12,370,592
17.100%
-2,981,072decrease
(-19.42%)
Filing
History
2022-02-09
3:15 pm
Purchase
2021-12-3113GADVANCED DRAIN SYS INC
WMS
VANGUARD GROUP INC4,761,043
6.680%
517,441increase
(+12.19%)
Filing
History
2021-12-16
4:42 pm
Sale
2021-12-1413DADVANCED DRAIN SYS INC
WMS
Berkshire Partners Holdings LLC6,493,367
9.100%
-1,390,000decrease
(-17.63%)
Filing
History