WMS

Advanced Drainage Systems In$151.28 0.01%
MaterialsUSCUSIP 00790R104· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
401
+32 QoQ
13F Value (tracked)
$8.6B
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)34 adding · 25 trimming
Insider net (180d)$0

Price & smart-money activity

$151.28 0.01%5Y +33.0%
$67.75$97.51$127.26$157.01$186.772021202220232024202520261316101566633656729
Hover for who · click for detailEnd-of-day closing prices52w $110.89 – $175.38
Build

Ask your agent what changed in WMS

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/WMS/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for WMS.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

401 tracked 13F filers
3 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$1.0B
7.4M
+4.4%
Added · +311K sh
Q1 2026
2VANGUARD PORTFOLIO MANAGEMENT LLC
$495.8M
3.6M
New
+3.6M sh
Q1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$469.5M
3.4M
New
+3.4M sh
Q1 2026
4STATE STREET CORP
$341.4M
2.5M
+0.8%
Added · +20K sh
Q1 2026
5UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$336.0M
2.5M
−4.1%
Reduced · −105K sh
Q1 2026
6Pictet Asset Management Holding SA
$302.3M
2.2M
+33%
Added · +546K sh
Q1 2026
7BAILLIE GIFFORD & CO
$280.8M
2.0M
−8.8%
Reduced · −197K sh
Q1 2026
8FIRST TRUST ADVISORS LP
$280.3M
2.0M
−16%
Reduced · −379K sh
Q1 2026
9Impax Asset Management Group plc
$264.3M
1.9M
−6.7%
Reduced · −139K sh
Q1 2026
10AMERICAN CENTURY COMPANIES INC
$227.3M
1.7M
+9.5%
Added · +144K sh
Q1 2026
11GEODE CAPITAL MANAGEMENT, LLC
$184.5M
1.3M
+5.8%
Added · +73K sh
Q1 2026
12MORGAN STANLEY
$182.8M
1.3M
−22%
Reduced · −377K sh
Q1 2026
13Amundi
$176.7M
1.3M
+0.7%
Added · +9K sh
Q1 2026
14DIMENSIONAL FUND ADVISORS LP
$163.4M
1.2M
+0.2%
Added · +3K sh
Q1 2026
15KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC
$151.7M
1.1M
−7.1%
Reduced · −84K sh
Q1 2026
16NORGES BANK
$156.6M
1.1M
+36%
Added · +289K sh
Q4 2025
17Impactive Capital LP
$117.5M
856K
−41%
Reduced · −601K sh
Q1 2026
18CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$96.4M
703K
−2.1%
Reduced · −15K sh
Q1 2026
19WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
$89.9M
656K
−4.7%
Reduced · −32K sh
Q1 2026
20Mirova US LLC
$86.2M
629K
−4.9%
Reduced · −32K sh
Q1 2026
21JANUS HENDERSON GROUP PLC
$81.3M
593K
−1.0%
Reduced · −6K sh
Q1 2026
22NORTHERN TRUST CORP
$80.8M
589K
+1.0%
Added · +6K sh
Q1 2026
23MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
$80.3M
586K
+8.1%
Added · +44K sh
Q1 2026
24WESTWOOD HOLDINGS GROUP INC
$75.9M
553K
+29%
Added · +124K sh
Q1 2026
25ADAGE CAPITAL PARTNERS GP, L.L.C.
$75.4M
550K
+267%
Added · +400K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
3
funds
Added
31
funds
Reduced
25
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$0
0 insiders
Net
$0
0 P/S txns
Signal
Mixed
open-market
DateInsiderRoleActionSharesValue
Jun 12, 2026BARBOUR D. SCOTTSee Remarks, DirectorOther (J)511$69K
Jun 12, 2026BARBOUR D. SCOTTSee Remarks, DirectorOther (J)511$69K
May 26, 2026KING BRIAN W.Executive Vice PresidentGrant (A)950$0
May 26, 2026KING BRIAN W.Executive Vice PresidentGrant (A)2K$0
May 26, 2026MAKOWSKI TIM ASee RemarksGrant (A)847$0
May 26, 2026MAKOWSKI TIM ASee RemarksGrant (A)2K$0
May 26, 2026Coyle Patrick M. JrSee RemarksGrant (A)1K$0
May 26, 2026Coyle Patrick M. JrSee RemarksGrant (A)3K$0
May 26, 2026BARBOUR D. SCOTTSee Remarks, DirectorGrant (A)9K$0
May 26, 2026BARBOUR D. SCOTTSee Remarks, DirectorGrant (A)20K$0
May 26, 2026Cottrill Scott AEVP, CFO AND SECRETARYGrant (A)3K$0
May 26, 2026Cottrill Scott AEVP, CFO AND SECRETARYGrant (A)6K$0

Institutional ownership over time

403 funds+81 since Q3 2024
0202403Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $8.4B · 2 values withheld

Funds that own WMS also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT212 funds$258.0B
NVIDIA CORPNVDA210 funds$358.4B
ALPHABET INC-CL AGOOGL210 funds$161.3B
AMAZON.COM INCAMZN209 funds$195.6B
VISA INC-CLASS A SHARESV208 funds$57.4B
BROADCOM INCAVGO206 funds$138.1B
META PLATFORMS INC-CLASS AMETA206 funds$110.5B
APPLE INCAAPL205 funds$258.9B
ELI LILLY & COLLY200 funds$64.5B
JPMORGAN CHASE & COJPM200 funds$60.9B
MASTERCARD INC - AMA200 funds$51.7B
ALPHABET INC-CL CGOOG199 funds$113.2B

Ranked by how many of WMS's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for WMS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.