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WMS · Advanced Drainage Systems, Inc. · Shareholders & Ownership

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$130.92 +0.92 (+0.71%)
Market Cap
$9.90B
Shares
75.41M
Volume · Oct 22 850.13K Avg daily vol (3M) 727.27K

Every disclosed holder of WMS in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns WMS

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 69,555,872 92.24%
Insiders (Forms 3, 4, 5) 904,281 1.20%
13D/G-only blocks 0 0.00%
Remaining 4,945,189 6.56%
Registered funds (N-PORT, not summed) 28,233,419 37.44%

Shares outstanding: 75,405,342, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of WMS

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
7,469,940
1.1
iShares Core S&P Mid-Cap ETF
Fund S000004307 · Registered fund · Jun 30, 2026
iShares Trust, not summed
2,452,492
1.2
iShares Russell Mid-Cap ETF
Fund S000004338 · Registered fund · Jun 30, 2026
iShares Trust, not summed
301,420
1.3
iShares S&P Mid-Cap 400 Growth ETF
Fund S000004308 · Registered fund · Jun 30, 2026
iShares Trust, not summed
240,394
1.4
iShares Russell 1000 Value ETF
Fund S000004345 · Registered fund · Jun 30, 2026
iShares Trust, not summed
161,062
1.5
iShares S&P Mid-Cap 400 Value ETF
Fund S000004309 · Registered fund · Jun 30, 2026
iShares Trust, not summed
158,532
2
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,705,538
3
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,397,037
4
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,693,665
4.1
State Street(R) SPDR(R) S&P(R) Homebuilders ETF
Fund S000010019 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
373,270
4.2
State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF
Fund S000006986 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
362,763
4.3
State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF
Fund S000006987 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
62,086
4.4
State Street(R) SPDR(R) S & P 400(TM) Mid Cap Value ETF
Fund S000006988 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
48,454
4.5
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
25,086
5
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,660,753
5.1
First Trust Water ETF
Fund S000017178 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
392,822
5.2
FT Vest SMID Rising Dividend Achievers Target Income ETF
Fund S000081275 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded Fund IV, not summed
34,810
5.3
First Trust Long/Short Equity ETF
Fund S000045700 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded Fund III, not summed
26,136
5.4
First Trust Industrials/Producer Durables AlphaDEX Fund
Fund S000017701 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
21,178
5.5
First Trust Mid Cap Core AlphaDEX Fund
Fund S000017338 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
13,126
6
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,431,878
7
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F CIK 861177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,346,623
7.1
UBS U.S. Allocation Fund
Fund S000002487 · Registered fund · May 31, 2026
UBS INVESTMENT TRUST, not summed
4,806
7.2
UBS Engage For Impact Fund
Fund S000063381 · Registered fund · Mar 31, 2026
UBS FUNDS, not summed
4,102
7.3
UBS GLOBAL ALLOCATION FUND
Fund S000002979 · Registered fund · Jun 30, 2026
UBS FUNDS, not summed
1,612
8
Impax Asset Management Group plc
13F CIK 1749768 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,845,942
9
BAILLIE GIFFORD & CO
13F CIK 1088875 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,835,297
10
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,755,643
11
First Trust RBA American Industrial Renaissance ETF
Fund S000044209 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
1,677,118
12
AMERICAN CENTURY COMPANIES INC
13F CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,634,302
12.1
Ultra Fund
Fund S000006195 · Registered fund · Jul 31, 2026
American Century Mutual Funds, Inc., not summed
977,000
13
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,393,836
13.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
75
14
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,367,443
15
Amundi
13F CIK 1330387 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,354,610
15.1
KBI GLOBAL INVESTORS AQUARIUS FUND
Fund S000063187 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE III, not summed
7,370
16
NORGES BANK
13F CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
1,303,735
17
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,277,818
17.1
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
197,747
17.2
Dimensional U.S. Small Cap ETF
Fund S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
188,989
17.3
Dimensional U.S. Core Equity 2 ETF
Fund S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
156,423
17.4
U.S. CORE EQUITY 1 PORTFOLIO
Fund S000000979 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
119,804
17.5
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
119,635
18
Pictet Asset Management Holding SA
13F CIK 1993888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,127,974
19
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC
13F CIK 1021223 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,035,255
20
VANGUARD SMALL-CAP GROWTH INDEX FUND
Fund S000002846 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,012,102
21
KBC Group NV
13F CIK 1411133 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
923,696
22
SMALLCAP World Fund Inc
Fund S000009599 · Registered fund · Jun 30, 2026
SMALLCAP World Fund Inc, not summed
884,282
23
WELLINGTON MANAGEMENT GROUP LLP
13F CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
840,488
24
Qube Research & Technologies Ltd
13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
839,820
25
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
835,672
25.1
Invesco Water Resources ETF
Fund S000003048 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
410,998
25.2
Invesco S&P Global Water Index ETF
Fund S000060819 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
253,753
25.3
Invesco MSCI Sustainable Future ETF
Fund S000013122 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
13,813
25.4
Invesco S&P Midcap 400 QVM Multi-Factor ETF
Fund S000072319 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
10,401
25.5
Invesco RAFI US 1000 ETF
Fund S000011995 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
10,311
26
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
821,587
27
Impactive Capital LP
13F CIK 1786767 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
782,790
28
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
696,500
28.1
Schwab U.S. Mid-Cap ETF
Fund S000026635 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
193,569
28.2
Schwab U.S. Large-Cap Growth ETF
Fund S000026633 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
151,961
28.3
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
100,554
28.4
Schwab U.S. Large-Cap ETF
Fund S000026632 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
75,318
28.5
Schwab Select Large Cap Growth Fund
Fund S000025589 · Registered fund · Jun 30, 2026
LAUDUS TRUST, not summed
45,455
29
BAMCO INC /NY/
13F CIK 1017918 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
680,431
29.1
Baron Real Estate Fund
Fund S000027257 · Registered fund · Jun 30, 2026
BARON SELECT FUNDS, not summed
343,700
29.2
BARON DISCOVERY FUND
Fund S000042178 · Registered fund · Jun 30, 2026
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND), not summed
225,000
29.3
Baron SMID Cap ETF
Fund S000096483 · Registered fund · Jun 30, 2026
Baron ETF Trust, not summed
3,871
30
Capital International Investors
13F CIK 1562230 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
657,285
31
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
641,404
31.1
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
2,871
31.2
Goldman Sachs MarketBeta U.S. 1000 Equity ETF
Fund S000075322 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust II, not summed
2,276
31.3
Goldman Sachs U.S. Equity Dividend and Premium Fund
Fund S000009324 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
1,800
31.4
Goldman Sachs MarketBeta(R) Russell 1000 Value Equity ETF
Fund S000083006 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
853
31.5
Goldman Sachs JUST U.S. Large Cap Equity ETF
Fund S000061377 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
744
32
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
13F CIK 1705339 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
634,269
32.1
Global X U.S. Infrastructure Development ETF
Fund S000056509 · Registered fund · May 31, 2026
GLOBAL X FUNDS, not summed
570,452
32.2
Global X Clean Water ETF
Fund S000071326 · Registered fund · May 31, 2026
GLOBAL X FUNDS, not summed
6,880
33
Mirova US LLC
13F CIK 1802900 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
619,117
34
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
594,404
34.1
Mid Cap Index Fund
Fund S000001273 · Registered fund · Jun 30, 2026
Northern Funds, not summed
46,586
34.2
Multi-Manager Global Listed Infrastructure Fund
Fund S000037667 · Registered fund · Jun 30, 2026
Northern Funds, not summed
2,635
34.3
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
2,212
35
Liontrust Investment Partners LLP
13F CIK 1544204 · Registered fund · Jun 30, 2026
carried, not yet filed for the newest quarter
558,705
36
SCHRODER INVESTMENT MANAGEMENT GROUP
13F CIK 1086619 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
551,815
37
State Street SPDR S&P MidCap 400SM ETF Trust
Fund · Registered fund · Jun 30, 2026
SPDR S&P MIDCAP 400 ETF TRUST, not summed
551,392
37.1
Nuveen S&P 500 Dynamic Overwrite Fund
Fund · Registered fund · Jun 30, 2026
Nuveen S&P 500 Dynamic Overwrite Fund, not summed
3,858
38
AMERIPRISE FINANCIAL INC
13F CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
528,473
38.1
Columbia Mid Cap Index Fund
Fund S000010826 · Registered fund · May 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
51,187
38.2
Multi-Manager Value Strategies Fund
Fund S000036208 · Registered fund · May 31, 2026
Columbia Funds Series Trust II, not summed
34,519
38.3
Columbia Research Enhanced Core ETF
Fund S000066076 · Registered fund · Jul 31, 2026
Columbia ETF Trust I, not summed
30,641
38.4
Columbia Research Enhanced Value ETF
Fund S000066077 · Registered fund · Jul 31, 2026
Columbia ETF Trust I, not summed
2,573
38.5
Columbia Research Enhanced Mid Cap ETF
Fund S000095312 · Registered fund · Jun 30, 2026
Columbia ETF Trust I, not summed
58
39
Triodos Investment Management BV
13F CIK 1748729 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
528,311
40
Eaton Vance Atlanta Capital SMID-Cap Fund
Fund S000005198 · Registered fund · Jun 30, 2026
Eaton Vance Growth Trust, not summed
491,850
41
Hill City Capital, LP
13F CIK 1837343 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
480,000
42
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
472,119
42.1
BNY Mellon US Mid Cap Core Equity ETF
Fund S000067261 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
10,536
43
Schonfeld Strategic Advisors LLC
13F CIK 1665241 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
460,060
44
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
457,355
45
Interval Partners, LP
13F CIK 1590228 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
452,250
46
First Trust SMID Cap Rising Dividend Achievers ETF
Fund S000059604 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
441,638
47
Thrivent Financial for Lutherans
13F CIK 314984 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
425,647
47.1
THRIVENT SMALL CAP STOCK FUND
Fund S000001358 · Registered fund · Jul 31, 2026
Thrivent Mutual Funds, not summed
146,306
47.2
Thrivent Small-Mid Cap Equity ETF
Fund S000075337 · Registered fund · Jun 30, 2026
Thrivent ETF Trust, not summed
66,350
47.3
THRIVENT SMALL CAP STOCK PORTFOLIO
Fund S000001445 · Registered fund · Jun 30, 2026
Thrivent Series Fund, Inc., not summed
48,598
47.4
THRIVENT AGGRESSIVE ALLOCATION FUND
Fund S000000700 · Registered fund · Jul 31, 2026
Thrivent Mutual Funds, not summed
23,525
47.5
THRIVENT MODERATELY AGGRESSIVE ALLOCATION PORTFOLIO
Fund S000001427 · Registered fund · Jun 30, 2026
Thrivent Series Fund, Inc., not summed
21,542
48
Swedbank AB
13F CIK 946431 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
410,660
49
BROWN BROTHERS HARRIMAN & CO
13F CIK 14661 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
405,502
50
VANGUARD DIVIDEND APPRECIATION INDEX FUND
Fund S000011322 · Registered fund · Jul 31, 2026
VANGUARD SPECIALIZED FUNDS, not summed
405,477

74 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

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Key facts CIK 1604028 CUSIP 00790R104 13F (30d) 89 filings 87 filers Visit website Investor relations