What does CUSIP 00790R104 represent in this 13F holders report?

CUSIP 00790R104 is the security identifier for WMS - ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock used to aggregate holder disclosures.

How many institutions held WMS - ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock in Q1 2021?

264 institutional investors reported WMS - ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock for Q1 2021. Use the holders table for investor-level position and value details.

ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock (WMS)

CUSIP: 00790R104

Q1 2021 13F Holders as of 31 Mar 2021

Security type / class: Equity / Common Stock
Total 13F shares: 59,775,103
Total 13F value: $6,180,454,958
Share change: -421,801
Put/Call ratio: 119%
SEC-reported price per share: $103.39
Number of holders: 264
Value change: -$34,975,469
Number of buys: 158
Number of sells: 109
Shares outstanding: 78,022,980

Security key

00790R104

Report period

Q1 2021

Institutions

264

Top holders

WMS full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 ADVANCED DRAINAGE SYSTEMS, INC. SEC filings ADVANCED DRAINAGE SYSTEMS, INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 00790R104

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of WMS - ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Berkshire Partners LLC

Disclosed value leader

Berkshire Partners LLC

Comparable rows

0/15

Latest evidence

31 Dec 2020

13F Highest disclosed value: $620,504,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

Berkshire Partners LLC has the largest disclosed position value at $620.5M.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Berkshire Partners LLC's linked filing trail.

Disclosed position value Top 5

Berkshire Partners LLC $620.5M

BlackRock Finance, Inc. $371.9M

VANGUARD GROUP INC $354.68M

Stockbridge Partners LLC $285.12M

Impax Asset Management Group plc $240.24M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Berkshire Partners LLC	13F Company 13F	— denominator unverified	$620,504,000 7,424,071 shares	—	31 Dec 2020
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$371,895,000 4,449,575 shares	—	31 Dec 2020
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$354,680,000 4,243,602 shares	—	31 Dec 2020
Stockbridge Partners LLC	13F Company 13F	— denominator unverified	$285,115,000 3,411,281 shares	—	31 Dec 2020
Impax Asset Management Group plc	13F Company 13F	— denominator unverified	$240,238,000 2,883,648 shares	—	31 Dec 2020
Select Equity Group, L.P.	13F Company 13F	— denominator unverified	$224,619,077 2,687,474 shares	—	31 Dec 2020

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

264

59,775,103

Rows available

264

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2021 vs Q1 2021 Across Filers

Q1 2021 holders

264

Q1 2021 holders

264

Holder diff

Investor	Q1 2021 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q1 2021 value	Q1 2021 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend