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

CUSIP: 00790R104

Q1 2021 13F Holders as of 31 Mar 2021

Holder snapshot 7 signals
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
Open additional details 1 more signal available
Number of sells
109
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
78,022,980

Security key

00790R104

Report period

Q1 2021

Institutions

264

Top holders

10

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
15/15
Latest evidence
31 Dec 2020
13F Lead comparable stake: 9.5% Showing 1-6 of 15 holder rows.

Quick read

Berkshire Partners LLC leads the comparable SEC ownership view at 9.5%.

15 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.
Comparable ownership Top 5
Berkshire Partners LLC 9.5%
BlackRock Finance, Inc. 5.7%
VANGUARD GROUP INC 5.4%
Stockbridge Partners LLC 4.4%
Impax Asset Management Group plc 3.7%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

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
9.5%
$620,504,000
7,424,071 shares
31 Dec 2020
BlackRock Finance, Inc.
13F
Company
13F
5.7%
$371,895,000
4,449,575 shares
31 Dec 2020
VANGUARD GROUP INC
13F
Company
13F
5.4%
$354,680,000
4,243,602 shares
31 Dec 2020
Stockbridge Partners LLC
13F
Company
13F
4.4%
$285,115,000
3,411,281 shares
31 Dec 2020
Impax Asset Management Group plc
13F
Company
13F
3.7%
$240,238,000
2,883,648 shares
31 Dec 2020
Select Equity Group, L.P.
13F
Company
13F
3.4%
$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
Shares
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 Q4 2020 Across Filers

Q4 2020 holders
226
Q1 2021 holders
264
Holder diff
38
Investor Q4 2020 Shares Q1 2021 Shares Share Diff Share Chg % Q4 2020 value Q1 2021 value Value change Value Chg %

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

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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