ADVANCED DRAINAGE SYSTEMS, INC. (WMS) — Institutional Holders, Q2 2026

559 institutional investment managers reported a WMS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $10.9B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← WMS stock profile

WMS in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

196

Trimmed

210

Sold out

Biggest buyers

FIRST ADVISORSAdded · +616,696 sh+$96.8M
BAMCOAdded · +389,279 sh+$61.1M
BALYASNY ASSET MANAGEMENT L.P.New · +342,925 sh+$53.8M
MARSHALL WACE, LLPAdded · +307,573 sh+$48.3M
Qube Research & Technologies LtdAdded · +293,414 sh+$46.1M

Biggest sellers

Pictet Asset Management Holding SATrimmed · -1,076,827 sh-$169.0M
WILLIAM BLAIR INVESTMENT MANAGEMENTSold out · -655,684 sh-$102.9M
ADAGE CAPITAL PARTNERS GP, L.L.C.Trimmed · -400,000 sh-$62.8M
Alyeska Investment Group, L.P.Sold out · -258,508 sh-$40.6M
WELLINGTON MANAGEMENT GROUP LLPTrimmed · -222,743 sh-$35.0M

WMS 13F holders ranked 1–100 of 559

Institutional investors reporting a position in ADVANCED DRAINAGE SYSTEMS, INC. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 7,469,940 sh	7,469,940	$1.2B	0.02%	+0.6%
2	VANGUARD PORTFOLIO MANAGEMENT#2 · 3,705,538 sh	3,705,538	$581.6M	0.03%	+2.5%
3	VANGUARD CAPITAL MANAGEMENT#3 · 3,397,037 sh	3,397,037	$533.2M	0.01%	-0.8%
4	STATE STREET#4 · 2,693,665 sh	2,693,665	$422.8M	0.01%	+8.2%
5	FIRST ADVISORS#5 · 2,660,753 sh	2,660,753	$417.6M	0.25%	+30.2%
6	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#6 · 2,346,623 sh	2,346,623	$368.3M	0.07%	-4.2%
7	Impax Asset Management Group plc#7 · 1,845,942 sh	1,845,942	$289.7M	1.89%	-4.2%
8	BAILLIE GIFFORD#8 · 1,835,297 sh	1,835,297	$288.1M	0.26%	-10.4%
9	AMERICAN CENTURY COMPANIES#9 · 1,634,302 sh	1,634,302	$256.5M	0.11%	-1.4%
10	MORGAN STANLEY#10 · 1,393,836 sh	1,393,836	$218.8M	0.01%	+4.5%
11	GEODE CAPITAL MANAGEMENT#11 · 1,367,443 sh	1,367,443	$214.7M	0.01%	+1.7%
12	Amundi#12 · 1,354,610 sh	1,354,610	$212.7M	0.05%	+5.1%
13	NORGES BANK#13 · 1,303,735 sh	1,303,735	$204.6M	0.02%	—
14	DIMENSIONAL FUND ADVISORS#14 · 1,277,818 sh	1,277,818	$200.5M	0.04%	+7.2%
15	Pictet Asset Management Holding SA#15 · 1,127,974 sh	1,127,974	$177.0M	0.17%	-48.8%
16	KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT#16 · 1,035,255 sh	1,035,255	$162.5M	0.50%	-6.4%
17	KBC Group NV#17 · 923,696 sh	923,696	$145.0M	—	+0.7%
18	WELLINGTON MANAGEMENT GROUP LLP#18 · 840,488 sh	840,488	$131.9M	0.02%	-20.9%
19	Qube Research & Technologies Ltd#19 · 839,820 sh	839,820	$131.8M	0.12%	+53.7%
20	Invesco Ltd.#20 · 835,672 sh	835,672	$131.2M	0.01%	-14.9%
21	Impactive Capital#21 · 782,790 sh	782,790	$122.9M	8.77%	-8.6%
22	CHARLES SCHWAB INVESTMENT MANAGEMENT#22 · 696,500 sh	696,500	$109.3M	0.01%	-0.9%
23	BAMCO#23 · 680,431 sh	680,431	$106.8M	0.16%	+133.7%
24	Capital International Investors#24 · 657,285 sh	657,285	$103.2M	0.02%	+2.9%
25	GOLDMAN SACHS GROUP#25 · 641,404 sh	641,404	$100.7M	<0.01%	+42.0%
26	MIRAE ASSET GLOBAL ETFS Ltd.#26 · 634,269 sh	634,269	$99.6M	0.12%	+8.2%
27	Mirova US#27 · 619,117 sh	619,117	$97.2M	1.04%	-1.5%
28	NORTHERN#28 · 594,404 sh	594,404	$93.3M	0.01%	+0.9%
29	Liontrust Investment Partners LLP#29 · 558,705 sh	558,705	$87.7M	1.29%	-2.6%
30	SCHRODER INVESTMENT MANAGEMENT GROUP#30 · 551,815 sh	551,815	$85.2M	0.06%	+5.0%
31	AMERIPRISE FINANCIAL#31 · 528,473 sh	528,473	$83.0M	0.02%	+47.2%
32	Triodos Investment Management BV#32 · 528,311 sh	528,311	$82.9M	5.05%	-1.6%
33	Hill City Capital#33 · 480,000 sh	480,000	$75.3M	1.92%	+29.7%
34	Bank of New York Mellon#34 · 472,119 sh	472,119	$74.1M	0.01%	-9.1%
35	Schonfeld Strategic Advisors#35 · 460,060 sh	460,060	$72.2M	0.26%	-6.0%
36	VANGUARD FIDUCIARY#36 · 457,355 sh	457,355	$71.8M	0.02%	+1.7%
37	Interval Partners#37 · 452,250 sh	452,250	$71.0M	1.83%	+16.3%
38	THRIVENT FINANCIAL FOR LUTHERANS#38 · 425,647 sh	425,647	$66.8M	0.11%	+108.7%
39	Swedbank AB#39 · 410,660 sh	410,660	$64.5M	—	+148.9%
40	BROWN BROTHERS HARRIMAN#40 · 405,502 sh	405,502	$63.6M	0.28%	-11.0%
41	ACK Asset Management#41 · 390,000 sh	390,000	$61.2M	7.15%	0.0%
42	WESTWOOD GROUP#42 · 367,876 sh	367,876	$57.7M	0.44%	-33.5%
43	Jupiter Topco#43 · 361,701 sh	361,701	$56.8M	0.02%	—
44	Corient Private Wealth#44 · 349,857 sh	349,857	$54.9M	0.08%	+2.2%
45	BALYASNY ASSET MANAGEMENT L.P.#45 · 342,925 sh	342,925	$53.8M	0.07%	New
46	BANK OF AMERICA#46 · 340,259 sh	340,259	$53.4M	<0.01%	-22.6%
47	Allianz Asset Management GmbH#47 · 381,545 sh	381,545	$52.3M	0.05%	0.0%
48	STIFEL FINANCIAL#48 · 316,418 sh	316,418	$49.7M	0.04%	-0.7%
49	MARSHALL WACE, LLP#49 · 314,509 sh	314,509	$49.4M	0.04%	+4434.4%
50	FRANKLIN RESOURCES#50 · 301,831 sh	301,831	$47.4M	0.01%	+1.0%
51	PNC FINANCIAL SERVICES GROUP#51 · 277,646 sh	277,646	$43.6M	0.02%	+1.1%
52	JPMORGAN CHASE#52 · 276,016 sh	276,016	$43.2M	<0.01%	-5.7%
53	Robeco Schweiz AG#53 · 271,735 sh	271,735	$42.7M	—	-11.9%
54	UBS Group AG#54 · 270,881 sh	270,881	$42.5M	<0.01%	+24.2%
55	Capital World Investors#55 · 270,582 sh	270,582	$42.5M	<0.01%	+2.9%
56	AQR CAPITAL MANAGEMENT#56 · 266,824 sh	266,824	$41.3M	0.01%	+18.7%
57	TD ASSET MANAGEMENT#57 · 257,884 sh	257,884	$40.5M	0.04%	-5.3%
58	GENEVA CAPITAL MANAGEMENT#58 · 245,893 sh	245,893	$38.6M	0.88%	-3.9%
59	Legal & General Group Plc#59 · 243,190 sh	243,190	$38.2M	<0.01%	+3.5%
60	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#60 · 225,799 sh	225,799	$35.4M	0.02%	+82.6%
61	FIL Ltd#61 · 221,192 sh	221,192	$34.7M	0.02%	+252.5%
62	Grantham, Mayo, Van Otterloo#62 · 218,069 sh	218,069	$34.2M	0.08%	+10.2%
63	Owls Nest Partners IA#63 · 211,839 sh	211,839	$33.3M	10.79%	-19.8%
64	Russell Investments Group, Ltd.#64 · 201,716 sh	201,716	$31.7M	0.03%	-3.9%
65	abrdn plc#65 · 201,310 sh	201,310	$31.6M	0.04%	-2.1%
66	Quantinno Capital Management#66 · 197,347 sh	197,347	$31.0M	0.04%	-7.8%
67	VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.#67 · 197,030 sh	197,030	$30.9M	0.24%	-33.2%
68	BDF-GESTION#68 · 11,686 sh	11,686	$30.5M	—	-10.1%
69	PGGM Investments#69 · 190,291 sh	190,291	$29.9M	0.73%	0.0%
70	STOREBRAND ASSET MANAGEMENT AS#70 · 189,377 sh	189,377	$29.7M	0.07%	+15.8%
71	Gotham Asset Management#71 · 182,934 sh	182,934	$28.7M	0.07%	-37.9%
72	RHUMBLINE ADVISERS#72 · 182,486 sh	182,486	$28.6M	0.02%	-0.5%
73	J. Safra Sarasin Holding AG#73 · 181,952 sh	181,952	$28.4M	—	+19.3%
74	MACKENZIE FINANCIAL#74 · 175,879 sh	175,879	$27.6M	0.03%	-15.2%
75	MIROVA#75 · 173,559 sh	173,559	$27.2M	1.01%	+0.8%
76	LOOMIS SAYLES & L P#76 · 169,143 sh	169,143	$26.5M	0.03%	-6.4%
77	Clearbridge Investments#77 · 166,390 sh	166,390	$26.1M	0.02%	+1332.5%
78	SCOPUS ASSET MANAGEMENT, L.P.#78 · 166,227 sh	166,227	$26.1M	0.37%	+186.8%
79	Janney Montgomery Scott#79 · 165,501 sh	165,501	$26.0M	0.05%	+121.3%
80	PRINCIPAL FINANCIAL GROUP#80 · 162,716 sh	162,716	$25.5M	0.01%	+1.8%
81	WCM INVESTMENT MANAGEMENT#81 · 165,114 sh	165,114	$25.5M	0.05%	+44.9%
82	Epoch Investment Partners#82 · 152,667 sh	152,667	$24.0M	0.14%	-3.9%
83	ADAGE CAPITAL PARTNERS GP, L.L.C.#83 · 150,000 sh	150,000	$23.5M	0.03%	-72.7%
84	Zurcher Kantonalbank (Zurich Cantonalbank)#84 · 149,275 sh	149,275	$23.4M	0.04%	+8.9%
85	SEI INVESTMENTS#85 · 147,129 sh	147,129	$23.1M	0.02%	-18.4%
86	WELLS FARGO & COMPANY#86 · 147,054 sh	147,054	$23.1M	<0.01%	+15.6%
87	JUPITER ASSET MANAGEMENT LTD#87 · 146,197 sh	146,197	$22.9M	0.11%	0.0%
88	CRAMER ROSENTHAL MCGLYNN#88 · 143,426 sh	143,426	$22.5M	1.14%	+19.7%
89	Mitsubishi UFJ & Banking#89 · 142,271 sh	142,271	$22.3M	0.05%	-14.3%
90	Swiss National Bank#90 · 140,700 sh	140,700	$22.1M	0.01%	-3.7%
91	ROYAL BANK OF CANADA#91 · 138,901 sh	138,901	$21.8M	<0.01%	-10.1%
92	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#92 · 138,509 sh	138,509	$21.7M	0.01%	-1.0%
93	T. Rowe Price Investment Management#93 · 133,832 sh	133,832	$21.0M	0.01%	-0.8%
94	NOMURA ASSET MANAGEMENT LTD#94 · 133,536 sh	133,536	$21.0M	0.04%	+65.6%
95	MILLENNIUM MANAGEMENT#95 · 133,227 sh	133,227	$20.9M	<0.01%	-40.5%
96	Rathbones Group PLC#96 · 131,747 sh	131,747	$20.7M	0.08%	+0.7%
97	Baird Financial Group#97 · 128,123 sh	128,123	$20.1M	0.03%	+560.7%
98	MASSACHUSETTS FINANCIAL SERVICES#98 · 125,282 sh	125,282	$19.7M	<0.01%	-19.0%
99	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt#99 · 124,095 sh	124,095	$19.5M	0.01%	+11.5%
100	CITADEL ADVISORS#100 · 120,446 sh	120,446	$18.9M	<0.01%	+35.8%

Funds that sold out of WMS in Q2 2026 (80)

Held WMS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held WMS in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT655,684 sh	655,684	$89.9M
Alyeska Investment Group, L.P.258,508 sh	258,508	$35.4M
Mediolanum International Funds Ltd212,849 sh	212,849	$28.0M
AEGON ASSET MANAGEMENT UK PLC113,778 sh	113,778	$15.6M
Distillate Capital Partners106,675 sh	106,675	$14.6M
DRIEHAUS CAPITAL MANAGEMENT105,562 sh	105,562	$14.5M
PEREGRINE CAPITAL MANAGEMENT82,628 sh	82,628	$11.3M
CANADA PENSION PLAN INVESTMENT BOARD81,881 sh	81,881	$11.2M
Archon Partners59,000 sh	59,000	$8.1M
ExodusPoint Capital Management55,665 sh	55,665	$7.6M
Cercano Management50,016 sh	50,016	$6.9M
AGF MANAGEMENT LTD44,750 sh	44,750	$6.1M
TWINBEECH CAPITAL44,696 sh	44,696	$6.1M
SEGALL BRYANT & HAMILL39,088 sh	39,088	$5.8M
WINTON GROUP Ltd40,298 sh	40,298	$5.5M
Weiss Asset Management37,700 sh	37,700	$5.2M
PensionDanmark Pensionsforsikringsaktieselskab37,043 sh	37,043	$5.1M
BI Asset Management Fondsmaeglerselskab A/S34,732 sh	34,732	$4.8M
Elo Mutual Pension Insurance30,478 sh	30,478	$4.2M
Connor, Clark & Lunn Investment Management Ltd.19,769 sh	19,769	$2.7M
XTX Topco Ltd18,978 sh	18,978	$2.6M
Calamos Advisors18,973 sh	18,973	$2.6M
Mariner13,440 sh	13,440	$1.8M
Dynamic Technology Lab Private Ltd13,425 sh	13,425	$1.8M
Atom Investors12,940 sh	12,940	$1.8M
Dayah Capital12,801 sh	12,801	$1.8M
PICTON MAHONEY ASSET MANAGEMENT12,034 sh	12,034	$1.7M
Y-Intercept (Hong Kong) Ltd11,584 sh	11,584	$1.6M
Jackson Creek Investment Advisors9,608 sh	9,608	$1.3M
Northwest & Ethical Investments L.P.9,062 sh	9,062	$1.2M
ALLSTATE8,475 sh	8,475	$1.2M
D. E. Shaw7,740 sh	7,740	$1.1M
CASTLEARK MANAGEMENT7,190 sh	7,190	$986.0K
NISSAY ASSET MANAGEMENT /JAPAN7,165 sh	7,165	$982.5K
ARISTEIA CAPITAL, L.L.C.6,050 sh	6,050	$829.6K
Bridgefront Capital5,997 sh	5,997	$822.4K
Virtu Financial5,787 sh	5,787	$794.0K
DRW Securities5,364 sh	5,364	$735.6K
First Eagle Investment Management5,326 sh	5,326	$730.4K
Oak Thistle5,305 sh	5,305	$727.5K
Caprock Group4,010 sh	4,010	$549.9K
Abacus Wealth Partners3,805 sh	3,805	$521.8K
Freestone Grove Partners3,649 sh	3,649	$500.4K
State of Wyoming3,121 sh	3,121	$428.0K
NOMURA2,960 sh	2,960	$405.9K
Fieldview Capital Management2,945 sh	2,945	$403.8K
Concentric Capital Strategies2,896 sh	2,896	$397.1K
Aaron Wealth Advisors2,432 sh	2,432	$333.5K
PINEBRIDGE INVESTMENTS2,154 sh	2,154	$295.4K
Inscription Capital2,055 sh	2,055	$281.8K
LECAP ASSET MANAGEMENT LTD1,944 sh	1,944	$266.6K
Centiva Capital1,775 sh	1,775	$243.4K
CHOREO1,675 sh	1,675	$229.7K
CERTUITY1,640 sh	1,640	$224.9K
Phoenix Financial Ltd.1,554 sh	1,554	$213.0K
ACADIAN ASSET MANAGEMENT1,475 sh	1,475	$202.0K
Caitong International Asset Management , Ltd590 sh	590	$80.9K
MAI Capital Management530 sh	530	$72.7K
Ancora Advisors447 sh	447	$61.3K
Bayforest Capital Ltd321 sh	321	$44.0K
Root Financial Partners188 sh	188	$25.8K
Measured Wealth Private Client Group136 sh	136	$18.6K
Annis Gardner Whiting Capital Advisors130 sh	130	$17.8K
TWIN PEAKS WEALTH ADVISORS111 sh	111	$15.2K
Addison Advisors65 sh	65	$8.9K
Western Wealth Management43 sh	43	$6.0K
Advisory Services Network26 sh	26	$3.6K
JPL Wealth Management25 sh	25	$3.4K
Raleigh Capital Management15 sh	15	$2.1K
RMG Wealth Management12 sh	12	$1.7K
Aspect Partners12 sh	12	$1.6K
MONTAG A & ASSOCIATES7 sh	7	$925.00
Vermillion Wealth Management6 sh	6	$823.00
James T. Borello RIA5 sh	5	$686.00
Marquette Asset Management4 sh	4	$549.00
Physician Wealth Advisors4 sh	4	$549.00
Activest Wealth Management2 sh	2	$274.00
Essential Partners2 sh	2	$274.00
CURIO WEALTH1 sh	1	$137.00
Signature Equity Partners1 sh	1	$137.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.