ADVANCED DRAIN SYS INC DEL WMS
COM · Common Stock · CUSIP 00790R104 · ISIN US00790R1041
Drainage product company based in Hillard, Ohio, US
- SectorMaterials
- IndustryPlastics Foam Products
- HeadquartersHilliard, OH
- Websiteads-pipe.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($93.5m this quarter). Holder counts are more reliable. Shares outstanding: 75.4m as of 2026-07-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $157.18. Options: 7 managers hold calls ($20.8m notional), 9 hold puts ($43.1m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 384 |
| Q4 2022 | 370 |
| Q1 2023 | 354 |
| Q2 2023 | 384 |
| Q3 2023 | 415 |
| Q4 2023 | 427 |
| Q1 2024 | 494 |
| Q2 2024 | 502 |
| Q3 2024 | 491 |
| Q4 2024 | 468 |
| Q1 2025 | 464 |
| Q2 2025 | 486 |
| Q3 2025 | 500 |
| Q4 2025 | 547 |
| Q1 2026 | 579 |
| Q2 2026 | 552 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 225 | 259 |
| Q4 2024 | 233 | 233 |
| Q1 2025 | 251 | 202 |
| Q2 2025 | 255 | 218 |
| Q3 2025 | 242 | 235 |
| Q4 2025 | 238 | 251 |
| Q1 2026 | 315 | 222 |
| Q2 2026 | 249 | 283 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $29.8m | $12.6m | 0.42 |
| Q4 2025 | $31.8m | $10.4m | 0.33 |
| Q1 2026 | $17.3m | $13.3m | 0.77 |
| Q2 2026 | $20.8m | $43.1m | 2.07 |
Biggest buyers
| FIRST TRUST ADVISORS LP | Added | +616.7k |
| BAMCO INC /NY/ | Added | +389.3k |
| Balyasny Asset Management L.P. | Added | +339.9k |
| MARSHALL WACE, LLP | Added | +307.6k |
| Qube Research & Technologies Ltd | Added | +293.4k |
| Swedbank AB | Added | +245.7k |
| Thrivent Financial for Lutherans | Added | +221.7k |
| STATE STREET CORP | Added | +204.1k |
| GOLDMAN SACHS GROUP INC | Added | +189.6k |
| AMERIPRISE FINANCIAL INC | Added | +169.5k |
Biggest sellers
| Pictet Asset Management Holding SA | Reduced | -1.1m |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Sold out | -655.7k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | -400.0k |
| Alyeska Investment Group, L.P. | Sold out | -258.5k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -222.7k |
| Mediolanum International Funds Ltd | Sold out | -212.8k |
| BAILLIE GIFFORD & CO | Reduced | -212.1k |
| WESTWOOD HOLDINGS GROUP INC | Reduced | -185.3k |
| Invesco Ltd. | Reduced | -146.9k |
| Rathbones Group PLC | Reduced | -129.8k |
Biggest calls
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $12.6m80.0k shares |
| JANE STREET GROUP, LLC | Added | $2.9m18.6k shares |
| GROUP ONE TRADING LLC | New | $2.5m15.8k shares |
| CITADEL ADVISORS LLC | Reduced | $1.5m9.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $847.6k5.4k shares |
| IMC-Chicago, LLC | Reduced | $502.3k3.2k shares |
| Walleye Capital LLC | New | $15.7k100 shares |
Biggest puts
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $17.3m110.0k shares |
| Walleye Trading LLC | Added | $13.4m85.2k shares |
| JPMORGAN CHASE & CO | New | $5.6m36.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.0m12.8k shares |
| CITADEL ADVISORS LLC | Added | $1.8m11.6k shares |
| GROUP ONE TRADING LLC | Added | $1.3m8.3k shares |
| IMC-Chicago, LLC | Added | $1.3m8.2k shares |
| JANE STREET GROUP, LLC | Reduced | $423.8k2.7k shares |
| Walleye Capital LLC | Added | $94.2k600 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-07-17 | 8.9% |
| DELAWARE CHARTER GUARANTEE & TRUST CO 13G · institution new · filed 2026-02-13 | 6.0% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 1 | $308.0k | — |
| Q2 2025 | 0 | — | 1 | $519.6k | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 4 | $14.8m | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 7.5m $1.2bn | Added +47.2k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.03% of their portfolio | 3.7m $581.6m | Added +89.9k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 3.4m $533.2m | Reduced -26.7k |
| STATE STREET CORP 0.01% of their portfolio | 2.7m $422.8m | Added +204.1k |
| FIRST TRUST ADVISORS LP 0.25% of their portfolio | 2.7m $417.6m | Added +616.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.07% of their portfolio | 2.3m $368.3m | Reduced -103.5k |
| Impax Asset Management Group plc 1.89% of their portfolio | 1.8m $289.7m | Reduced -81.6k |
| BAILLIE GIFFORD & CO 0.26% of their portfolio | 1.8m $288.1m | Reduced -212.1k |
| AMERICAN CENTURY COMPANIES INC 0.11% of their portfolio | 1.6m $256.5m | Reduced -23.5k |
| MORGAN STANLEY 0.01% of their portfolio | 1.4m $218.8m | Added +60.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.4m $214.7m | Added +22.6k |
| Amundi 0.05% of their portfolio | 1.4m $212.7m | Added +65.9k |
| NORGES BANK 0.02% of their portfolio | 1.3m $204.6m | Not comparable |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 1.3m $200.5m | Added +86.0k |
| Pictet Asset Management Holding SA 0.17% of their portfolio | 1.1m $177.0m | Reduced -1.1m |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.50% of their portfolio | 1.0m $162.5m | Reduced -71.2k |
| KBC Group NV 0.31% of their portfolio | 923.7k $145.0m | Added +6.7k |
| WELLINGTON MANAGEMENT GROUP LLP 0.02% of their portfolio | 840.5k $131.9m | Reduced -222.7k |
| Qube Research & Technologies Ltd 0.15% of their portfolio | 839.8k $131.8m | Added +293.4k |
| Invesco Ltd. 0.01% of their portfolio | 835.7k $131.2m | Reduced -146.9k |
| Impactive Capital LP 8.77% of their portfolio | 782.8k $122.9m | Reduced -73.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 696.5k $109.3m | Reduced -6.2k |
| BAMCO INC /NY/ 0.16% of their portfolio | 680.4k $106.8m | Added +389.3k |
| Capital International Investors 0.02% of their portfolio | 657.3k $103.2m | Added +18.3k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 641.4k $100.7m | Added +189.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.12% of their portfolio | 634.3k $99.6m | Added +48.3k |
| Mirova US LLC 1.04% of their portfolio | 619.1k $97.2m | Reduced -9.7k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 594.4k $93.3m | Added +5.2k |
| Liontrust Investment Partners LLP 1.29% of their portfolio | 558.7k $87.7m | Added +33.9k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.06% of their portfolio | 551.8k $85.2m | Added +26.0k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 528.5k $83.0m | Added +169.5k |
| Triodos Investment Management BV 5.05% of their portfolio | 528.3k $82.9m | Reduced -8.4k |
| Hill City Capital, LP 1.76% of their portfolio | 480.0k $75.3m | Added +110.0k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 472.1k $74.1m | Reduced -47.1k |
| Schonfeld Strategic Advisors LLC 0.38% of their portfolio | 460.1k $72.2m | Reduced -29.2k |
| VANGUARD FIDUCIARY TRUST CO 0.02% of their portfolio | 457.4k $71.8m | Added +7.7k |
| Interval Partners, LP 2.28% of their portfolio | 452.2k $71.0m | Added +63.4k |
| Thrivent Financial for Lutherans 0.11% of their portfolio | 425.6k $66.8m | Added +221.7k |
| Swedbank AB 0.06% of their portfolio | 410.7k $64.5m | Added +245.7k |
| BROWN BROTHERS HARRIMAN & CO 0.28% of their portfolio | 405.5k $63.6m | Reduced -50.1k |
| ACK Asset Management LLC 7.15% of their portfolio | 390.0k $61.2m | Unchanged |
| Allianz Asset Management GmbH 0.05% of their portfolio | 381.5k $52.3m | Added +144 |
| WESTWOOD HOLDINGS GROUP INC 0.44% of their portfolio | 367.9k $57.7m | Reduced -185.3k |
| Jupiter Topco LLC 0.02% of their portfolio | 361.7k $56.8m | First filing |
| Corient Private Wealth LP 0.08% of their portfolio | 349.9k $54.9m | Added +7.7k |
| Balyasny Asset Management L.P. 0.10% of their portfolio | 342.9k $53.8m | Added +339.9k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 340.3k $53.4m | Reduced -99.3k |
| STIFEL FINANCIAL CORP 0.04% of their portfolio | 316.4k $49.7m | Reduced -2.3k |
| MARSHALL WACE, LLP 0.04% of their portfolio | 314.5k $49.4m | Added +307.6k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 301.8k $47.4m | Added +3.1k |
| PNC Financial Services Group, Inc. 0.02% of their portfolio | 277.6k $43.6m | Added +3.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 276.0k $43.2m | Reduced -16.6k |
| Robeco Schweiz AG 0.68% of their portfolio | 271.7k $42.7m | Reduced -36.7k |
| UBS Group AG 0.01% of their portfolio | 270.9k $42.5m | Added +52.8k |
| Capital World Investors 0.01% of their portfolio | 270.6k $42.5m | Added +7.7k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 266.8k $41.3m | Added +42.0k |
| TD Asset Management Inc 0.04% of their portfolio | 257.9k $40.5m | Reduced -14.4k |
| GENEVA CAPITAL MANAGEMENT LLC 0.88% of their portfolio | 245.9k $38.6m | Reduced -10.0k |
| Legal & General Group Plc 0.01% of their portfolio | 243.2k $38.2m | Added +8.2k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 225.8k $35.4m | Added +102.2k |
| FIL Ltd 0.02% of their portfolio | 221.2k $34.7m | Added +158.4k |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.08% of their portfolio | 218.1k $34.2m | Added +20.2k |
| Owls Nest Partners IA, LLC 10.79% of their portfolio | 211.8k $33.3m | Reduced -52.3k |
| Russell Investments Group, Ltd. 0.03% of their portfolio | 201.7k $31.7m | Reduced -8.1k |
| Aberdeen Group plc 0.04% of their portfolio | 201.3k $31.6m | Reduced -4.4k |
| Quantinno Capital Management LP 0.04% of their portfolio | 197.3k $31.0m | Reduced -16.6k |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 0.24% of their portfolio | 197.0k $30.9m | Reduced -97.9k |
| PGGM Investments 0.73% of their portfolio | 190.3k $29.9m | Unchanged |
| STOREBRAND ASSET MANAGEMENT AS 0.07% of their portfolio | 189.4k $29.7m | Added +25.9k |
| Gotham Asset Management, LLC 0.07% of their portfolio | 182.9k $28.7m | Reduced -111.8k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 182.5k $28.6m | Reduced -833 |
| J. Safra Sarasin Holding AG 0.41% of their portfolio | 182.0k $28.4m | Added +29.5k |
| MACKENZIE FINANCIAL CORP 0.03% of their portfolio | 175.9k $27.6m | Reduced -31.5k |
| MIROVA 1.01% of their portfolio | 173.6k $27.2m | Added +1.4k |
| LOOMIS SAYLES & CO L P 0.03% of their portfolio | 169.1k $26.5m | Reduced -11.5k |
| Clearbridge Investments, LLC 0.02% of their portfolio | 166.4k $26.1m | Added +154.8k |
| SCOPUS ASSET MANAGEMENT, L.P. 0.61% of their portfolio | 166.2k $26.1m | Added +108.3k |
| Janney Montgomery Scott LLC 0.05% of their portfolio | 165.5k $26.0m | Added +90.7k |
| WCM INVESTMENT MANAGEMENT, LLC 0.05% of their portfolio | 165.1k $25.5m | Added +51.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 162.7k $25.5m | Added +2.8k |
| Epoch Investment Partners, Inc. 0.14% of their portfolio | 152.7k $24.0m | Reduced -6.1k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.03% of their portfolio | 150.0k $23.5m | Reduced -400.0k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.04% of their portfolio | 149.3k $23.4m | Added +12.1k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 147.1k $23.1m | Reduced -33.3k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 147.1k $23.1m | Added +19.8k |
| JUPITER ASSET MANAGEMENT LTD 0.11% of their portfolio | 146.2k $22.9m | Unchanged |
| CRAMER ROSENTHAL MCGLYNN LLC 1.14% of their portfolio | 143.4k $22.5m | Added +23.6k |
| Mitsubishi UFJ Trust & Banking Corp 0.05% of their portfolio | 142.3k $22.3m | Reduced -23.7k |
| Swiss National Bank 0.01% of their portfolio | 140.7k $22.1m | Reduced -5.4k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 138.9k $21.8m | Reduced -15.5k |
| California Public Employees Retirement System 0.01% of their portfolio | 138.5k $21.7m | Reduced -1.4k |
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 133.8k $21.0m | Reduced -1.1k |
| NOMURA ASSET MANAGEMENT CO LTD 0.04% of their portfolio | 133.5k $21.0m | Added +52.9k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 133.2k $20.9m | Reduced -90.7k |
| Rathbones Group PLC 0.08% of their portfolio | 131.7k $20.7m | Reduced -129.8k |
| Baird Financial Group, Inc. 0.03% of their portfolio | 128.1k $20.1m | Added +108.7k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 125.3k $19.7m | Reduced -29.4k |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.02% of their portfolio | 124.1k $19.5m | Added +12.8k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 120.4k $18.9m | Added +31.7k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.12% of their portfolio | 119.2k $18.7m | Added +116.2k |