Advanced Drainage SystemsWMS
13F holders, Q2 2026 (June 30)556holders −24
53new positions
78sold out
7famous investors
$157.28avg. 13F price*
At the end of Q2 2026, 556 institutions reported holding Advanced Drainage Systems Inc. (WMS) in their 13F filings, down 24 from Q1 2026. 53 opened new positions and 78 sold out. The largest holders were BlackRock, Inc. ($1.2B), Vanguard Portfolio Management LLC ($581.6M) and Vanguard Capital Management LLC ($533.2M). 7 famous investors held it, including Ron Baron (0.2% of Baron Capital (BAMCO)'s portfolio), Jeremy Grantham (0.1% of GMO's portfolio) and Joel Greenblatt (0.1% of Gotham Asset Management's portfolio).
- Company
- Advanced Drainage Systems Inc.
- CUSIP
- 00790R104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 53 | $54.3M |
| Exits | 78 | $323.6M |
All 13F filers, Q1 2026 → Q2 2026: 5,862,739 shares bought and 6,769,155 shares sold, net −906,416 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 556 holders
| BlackRock, Inc. | 0.02% | Add +0.6% | 7,469,940 | $1.2B |
| Vanguard Portfolio Management LLC | 0.03% | Add +2.5% | 3,705,538 | $581.6M |
| Vanguard Capital Management LLC | 0.01% | Reduce -0.8% | 3,397,037 | $533.2M |
| State Street Corp. | 0.01% | Add +8.2% | 2,693,665 | $422.8M |
| First Trust Advisors LP | 0.25% | Add +30.2% | 2,660,753 | $417.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.07% | Reduce -4.2% | 2,346,623 | $368.3M |
| Impax Asset Management Group plc | 1.89% | Reduce -4.2% | 1,845,942 | $289.7M |
| Baillie Gifford & Co. | 0.26% | Reduce -10.4% | 1,835,297 | $288.1M |
| American Century Companies Inc. | 0.11% | Reduce -1.4% | 1,634,302 | $256.5M |
| Morgan Stanley | 0.01% | Add +4.5% | 1,393,836 | $218.8M |
| Geode Capital Management, LLC | 0.01% | Add +1.7% | 1,367,443 | $214.7M |
| Amundi | 0.05% | Add +5.1% | 1,354,610 | $212.7M |
| Norges Bank | 0.02% | — | 1,303,735 | $204.6M |
| Dimensional Fund Advisors LP | 0.04% | Add +7.2% | 1,277,818 | $200.5M |
| Pictet Asset Management Holding SA | 0.17% | Reduce -48.8% | 1,127,974 | $177.0M |
| Kayne Anderson Rudnick Investment Management LLC | 0.50% | Reduce -6.4% | 1,035,255 | $162.5M |
| KBC Group NV | 0.31% | Add +0.7% | 923,696 | $145.0M |
| Wellington Management Group LLP | 0.02% | Reduce -20.9% | 840,488 | $131.9M |
| Qube Research & Technologies Ltd | 0.15% | Add +53.7% | 839,820 | $131.8M |
| Invesco Ltd. | 0.01% | Reduce -14.9% | 835,672 | $131.2M |
| Impactive Capital LP | 8.77% | Reduce -8.6% | 782,790 | $122.9M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -0.9% | 696,500 | $109.3M |
| Baron Capital (BAMCO) | 0.16% | Add +133.7% | 680,431 | $106.8M |
| Capital International Investors | 0.02% | Add +2.9% | 657,285 | $103.2M |
| Goldman Sachs Group Inc. | 0.01% | Add +42.0% | 641,404 | $100.7M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.12% | Add +8.2% | 634,269 | $99.6M |
| Mirova US LLC | 1.04% | Reduce -1.6% | 619,117 | $97.2M |
| Northern Trust Corp. | 0.01% | Add +0.9% | 594,404 | $93.3M |
| Liontrust Investment Partners LLP | 1.29% | Add +6.5% | 558,705 | $87.7M |
| Schroder Investment Management Group | 0.06% | Add +5.0% | 551,815 | $85.2M |
| Ameriprise Financial Inc. | 0.02% | Add +47.2% | 528,473 | $83.0M |
| Triodos Investment Management BV | 5.05% | Reduce -1.6% | 528,311 | $82.9M |
| Hill City Capital, LP | 1.76% | Add +29.7% | 480,000 | $75.3M |
| Bank of New York Mellon Corp | 0.01% | Reduce -9.1% | 472,119 | $74.1M |
| Schonfeld Strategic Advisors LLC | 0.38% | Reduce -6.0% | 460,060 | $72.2M |
| Vanguard Fiduciary Trust Co. | 0.02% | Add +1.7% | 457,355 | $71.8M |
| Interval Partners, LP | 2.28% | Add +16.3% | 452,250 | $71.0M |
| Thrivent Financial for Lutherans | 0.11% | Add +108.7% | 425,647 | $66.8M |
| Swedbank AB | 0.06% | Add +148.9% | 410,660 | $64.5M |
| Brown Brothers Harriman & Co. | 0.28% | Reduce -11.0% | 405,502 | $63.6M |
| ACK Asset Management LLC | 7.15% | No change | 390,000 | $61.2M |
| Westwood Holdings Group Inc. | 0.44% | Reduce -33.5% | 367,876 | $57.7M |
| Jupiter Topco LLC | 0.02% | — | 361,701 | $56.8M |
| Corient Private Wealth LP | 0.08% | Add +2.3% | 349,857 | $54.9M |
| Balyasny Asset Management L.P. | 0.10% | Add +11081.1% | 342,925 | $53.8M |
| Bank of America Corp. | 0.00% | Reduce -22.6% | 340,259 | $53.4M |
| Allianz Asset Management GmbH | 0.05% | Reduce -14.6% | 325,728 | $51.1M |
| Stifel Financial Corp. | 0.04% | Reduce -0.7% | 316,418 | $49.7M |
| Marshall Wace, LLP | 0.04% | Add +4434.4% | 314,509 | $49.4M |
| Franklin Resources Inc. | 0.01% | Add +1.0% | 301,831 | $47.4M |
| PNC Financial Services Group, Inc. | 0.02% | Add +1.1% | 277,646 | $43.6M |
| JPMorgan Chase & Co. | 0.00% | Reduce -5.7% | 276,016 | $43.2M |
| Robeco Schweiz AG | 0.68% | Reduce -11.9% | 271,735 | $42.7M |
| UBS Group AG | 0.01% | Add +24.2% | 270,881 | $42.5M |
| Capital World Investors | 0.01% | Add +2.9% | 270,582 | $42.5M |
| AQR Capital Management | 0.01% | Add +18.7% | 266,824 | $41.3M |
| TD Asset Management Inc | 0.04% | Reduce -5.3% | 257,884 | $40.5M |
| Geneva Capital Management LLC | 0.88% | Reduce -3.9% | 245,893 | $38.6M |
| Legal & General Group Plc | 0.01% | Add +3.5% | 243,190 | $38.2M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Add +82.6% | 225,799 | $35.4M |
| FIL Ltd | 0.02% | Add +252.5% | 221,192 | $34.7M |
| GMO | 0.08% | Add +10.2% | 218,069 | $34.2M |
| Owls Nest Partners IA, LLC | 10.79% | Reduce -19.8% | 211,839 | $33.3M |
| Russell Investments Group, Ltd. | 0.03% | Reduce -3.9% | 201,716 | $31.7M |
| Aberdeen Group plc | 0.04% | Reduce -2.1% | 201,310 | $31.6M |
| Quantinno Capital Management LP | 0.04% | Reduce -7.8% | 197,347 | $31.0M |
| Van Lanschot Kempen Investment Management N.V. | 0.24% | Reduce -33.2% | 197,030 | $30.9M |
| BDF-Gestion | 4.08% | Reduce -10.1% | 11,686 | $30.5M |
| PGGM Investments | 0.73% | No change | 190,291 | $29.9M |
| Storebrand Asset Management As | 0.07% | Add +15.8% | 189,377 | $29.7M |
| Gotham Asset Management | 0.07% | Reduce -37.9% | 182,934 | $28.7M |
| Rhumbline Advisers | 0.02% | Reduce -0.5% | 182,486 | $28.6M |
| J. Safra Sarasin Holding AG | 0.41% | Add +19.3% | 181,952 | $28.4M |
| Mackenzie Financial Corp. | 0.03% | Reduce -15.2% | 175,879 | $27.6M |
| Mirova | 1.01% | Add +0.8% | 173,559 | $27.2M |
| Loomis Sayles & Co. L P | 0.03% | Reduce -6.4% | 169,143 | $26.5M |
| Clearbridge Investments, LLC | 0.02% | Add +1332.5% | 166,390 | $26.1M |
| Scopus Asset Management, L.P. | 0.61% | Add +186.8% | 166,227 | $26.1M |
| Janney Montgomery Scott LLC | 0.05% | Add +121.3% | 165,501 | $26.0M |
| Principal Financial Group Inc. | 0.01% | Add +1.8% | 162,716 | $25.5M |
| WCM Investment Management, LLC | 0.05% | Add +44.9% | 165,114 | $25.5M |
| Epoch Investment Partners, Inc. | 0.14% | Reduce -3.9% | 152,667 | $24.0M |
| Adage Capital Partners Gp, L.L.C. | 0.03% | Reduce -72.7% | 150,000 | $23.5M |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.04% | Add +8.9% | 149,275 | $23.4M |
| Sei Investments Co. | 0.02% | Reduce -18.4% | 147,129 | $23.1M |
| Wells Fargo & Company | 0.00% | Add +15.6% | 147,054 | $23.1M |
| Jupiter Asset Management Ltd. | 0.11% | No change | 146,197 | $22.9M |
| Cramer Rosenthal McGlynn LLC | 1.14% | Add +19.7% | 143,426 | $22.5M |
| Mitsubishi UFJ Trust & Banking Corp | 0.05% | Reduce -14.3% | 142,271 | $22.3M |
| Swiss National Bank | 0.01% | Reduce -3.7% | 140,700 | $22.1M |
| Royal Bank of Canada | 0.00% | Reduce -10.1% | 138,901 | $21.8M |
| California Public Employees Retirement System | 0.01% | Reduce -1.0% | 138,509 | $21.7M |
| T. Rowe Price Investment Management, Inc. | 0.01% | Reduce -0.8% | 133,832 | $21.0M |
| Nomura Asset Management Co. Ltd. | 0.04% | Add +65.7% | 133,536 | $21.0M |
| Millennium Management | 0.01% | Reduce -40.5% | 133,227 | $20.9M |
| Rathbones Group PLC | 0.08% | Add +0.7% | 131,747 | $20.7M |
| Baird Financial Group, Inc. | 0.03% | Add +560.7% | 128,123 | $20.1M |
| Massachusetts Financial Services Co. | 0.01% | Reduce -19.0% | 125,282 | $19.7M |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 0.02% | Add +11.5% | 124,095 | $19.5M |
| Citadel Advisors | 0.01% | Add +35.8% | 120,446 | $18.9M |
"% of holder's portfolio" is WMS's weight in each manager's 13F, not the share of Advanced Drainage Systems Inc. the manager owns.