Advanced Drain Sys Inc Del

CUSIP 00790R104COMWMSQ1 2026

13D / 13G Filings

Schedule 13D/13G on record

Beneficial Filers

Distinct reporting persons

Largest Stake

24.5%

Max % of class reported

Institutional Holders

565

13F filers (latest quarter)

31 filings · latest Feb 13, 2026

#	Filed	Reporting Person	Form	% of Class	Shares	Filing
1	Feb 13, 2026	Advanced Drainage Systems Inc. Employee Stock Ownership Plan Trust	13G	6.0%	77.76M	SEC
2	Jul 17, 2025	Blackrock, Inc.	13G/A	8.9%	6.89M	SEC
3	Nov 14, 2024	Principal Financial Group Inc	13G/A	7.0%	5.46M	SEC
4	Aug 7, 2024	Blackrock Inc.	13G/A	10.2%	7.86M	SEC
5	Feb 13, 2024	Vanguard Group Inc	13G/A	8.8%	6.87M	SEC
6	Feb 9, 2024	Principal Financial Group Inc	13G/A	9.0%	7.01M	SEC
7	Jan 25, 2024	Blackrock Inc.	13G	9.0%	6.99M	SEC
8	Feb 9, 2023	Vanguard Group Inc	13G/A	8.1%	6.67M	SEC
9	Feb 7, 2023	Principal Financial Group Inc	13G	10.8%	8.77M	SEC
10	Sep 9, 2022	Berkshire Partners Holdings LLC	13D/A	2.4%	1.97M	SEC

See the full Schedule 13D/13G history for Advanced Drain Sys Inc Del.

Largest reported positions · latest quarter

#	Fund	Shares	Value
1	Blackrock, Inc.	7.42M	$1.02B
2	State Street Corp	2.49M	$341.39M
3	Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas LLC	2.45M	$335.99M
4	Pictet Asset Management Holding SA	2.20M	$302.29M
5	Baillie Gifford & Co	2.05M	$280.75M
6	First Trust Advisors LP	2.04M	$280.30M
7	Impax Asset Management Group PLC	1.93M	$264.32M
8	American Century Companies Inc	1.66M	$227.33M
9	Geode Capital Management, LLC	1.34M	$184.46M
10	Morgan Stanley	1.33M	$182.84M