WMS

Advanced Drainage Systems In

-$854.9M

Net Activity

Institutions Holding

568

Popularity Rank

#946

Avg Weight

0.16%

Total Value

$9.5B

Ownership Trend

568 institutions currently hold WMS, with 313 net buyers and 222 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Majority Increased

Based on recent trading activity

Net Selling Institutions

222

Net Buying Institutions

313

Key Holders

Key Holders

Top 5 by Value

BI
BlackRock, Inc.
$1.0B
VP
Vanguard Portfolio Management LLC
$495.8M
VC
Vanguard Capital Management LLC
$469.5M
SS
State Street CORP
$341.4M
UA
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
$336.0M

Top 5 by Conviction

IC
Impactive Capital LP
8.52%
AA
ACK Asset Management LLC
6.68%
TI
Triodos Investment Management BV
5.57%
IA
Impax Asset Management Group plc
1.84%
HC
Hill City Capital, LP
1.81%
View all 568 holding institutions

Quarterly Activity

Recent Activity

+$4.5B

Total Buy Value

$5.2B

Total Sell Value

New buy87
Trim166
Add226
Sold out56

313

Net Buyers

222

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

1

Filings (14d)

Data as of 2026-07-16
2026-07-16

Advanced Drainage Systems (WMS) held its 2026 annual meeting on July 16. Shareholders elected nine directors, ratified Deloitte & Touche LLP as the independent auditor for fiscal 2027, and approved executive compensation in a non-binding advisory vote.

View Full Filing (SEC EDGAR)

View all Form 8-K filings

FAQ

Who are the top institutional investors holding ADVANCED DRAINAGE SYSTEMS IN (WMS)?
Major stakeholders currently include BlackRock, Inc. ($1.0B), Vanguard Portfolio Management LLC ($495.8M), Vanguard Capital Management LLC ($469.5M). Based on the latest 13F filings, there are a total of 568 tracked investment funds and institutions maintaining positions in WMS.
What is the overall institutional sentiment toward WMS recently?
Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $854.9M, driven by 313 managers accumulating shares while 222 reduced their exposure.
Which institutions have been selling or reducing their WMS positions?
In the latest period, 166 funds trimmed their holdings, and 56 managers completely exited their positions. The aggregate reported sell value was $5.2B.
Are there any notable investors adding WMS to their portfolios?
Yes, buying activity remains notable. 87 institutions opened new positions in {ticker}, and 226 existing holders added to their shares. The total reported buy value for the quarter amounted to $4.5B.

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