ADVANCED DRAINAGE SYSTEMS IN (WMS) Institutional Shareholders
ADVANCED DRAINAGE SYSTEMS IN (WMS) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $10.88B in WMS holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WMS tracked by InsiderSet, reporting ownership valued at approximately $1.17B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $947.49M, representing an estimated loss of -19.19% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 42% of the total disclosed WMS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in ADVANCED DRAINAGE SYSTEMS IN (WMS).
This page ranks the largest institutional WMS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
531
Total Reported Value
$10.88B
Largest Holder
Blackrock, Inc.
Largest Position
$1.17B
Insider Transactions (90d)
11
Latest Filing Quarter
Q2 2026
New Institutional Positions
36
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 7,469,940 | $1,172,481,738 | $947,487,190 | -$224,994,548 | -19.19% | |
| Vanguard Portfolio Management Llc | 0.03% | 3,705,538 | $581,621,244 | $470,010,440 | -$111,610,804 | -19.19% | |
| Vanguard Capital Management Llc | 0.01% | 3,397,037 | $533,198,928 | $430,880,173 | -$102,318,755 | -19.19% | |
| State Street Corp | 0.01% | 2,693,665 | $422,797,658 | $341,664,469 | -$81,133,189 | -19.19% | |
| First Trust Advisors Lp | 0.25% | 2,660,753 | $417,631,493 | $337,489,911 | -$80,141,582 | -19.19% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.07% | 2,450,123 | $335,985,368 | $310,773,601 | -$25,211,767 | -7.50% | |
| Impax Asset Management Group Plc | 1.89% | 1,845,942 | $289,739,056 | $234,139,283 | -$55,599,773 | -19.19% | |
| Baillie Gifford & Co | 0.26% | 1,835,297 | $288,068,217 | $232,789,071 | -$55,279,146 | -19.19% | |
| Banque Cantonale Vaudoise | 0.04% | 1,635 | $257,000,000 | $207,383 | -$256,792,617 | -99.92% | |
| American Century Companies Inc | 0.11% | 1,634,302 | $256,520,042 | $207,294,866 | -$49,225,176 | -19.19% | |
| Morgan Stanley | 0.01% | 1,393,836 | $218,777,199 | $176,794,158 | -$41,983,041 | -19.19% | |
| Geode Capital Management, Llc | 0.01% | 1,367,443 | $214,685,726 | $173,446,470 | -$41,239,256 | -19.21% | |
| Norges Bank | 0.02% | 1,303,735 | $204,634,246 | $165,365,747 | -$39,268,499 | -19.19% | |
| Dimensional Fund Advisors Lp | 0.04% | 1,277,818 | $200,546,357 | $162,078,435 | -$38,467,922 | -19.18% | |
| Pictet Asset Management Holding Sa | 0.17% | 1,127,974 | $177,036,073 | $143,072,222 | -$33,963,851 | -19.18% | |
| Kayne Anderson Rudnick Investment Management Llc | 0.50% | 1,035,255 | $162,493,762 | $131,311,744 | -$31,182,018 | -19.19% | |
| Kbc Group Nv | 0.31% | 923,696 | $144,983,000 | $117,161,601 | -$27,821,399 | -19.19% | |
| Wellington Management Group Llp | 0.02% | 840,488 | $131,922,996 | $106,607,498 | -$25,315,498 | -19.19% | |
| Qube Research & Technologies Ltd | 0.15% | 839,820 | $131,818,147 | $106,522,769 | -$25,295,378 | -19.19% | |
| Invesco Ltd. | 0.01% | 835,672 | $131,167,077 | $105,996,636 | -$25,170,441 | -19.19% | |
| Impactive Capital Lp | 8.77% | 782,790 | $122,866,718 | $99,289,084 | -$23,577,634 | -19.19% | |
| Charles Schwab Investment Management Inc | 0.01% | 696,500 | $109,322,640 | $88,344,060 | -$20,978,580 | -19.19% | |
| Bamco Inc | 0.16% | 680,431 | $106,800,450 | $86,305,868 | -$20,494,582 | -19.19% | |
| Capital International Investors | 0.02% | 657,285 | $103,167,454 | $83,370,029 | -$19,797,425 | -19.19% | |
| Goldman Sachs Group Inc | 0.01% | 641,404 | $100,674,719 | $81,355,683 | -$19,319,036 | -19.19% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.12% | 634,269 | $99,552,670 | $80,450,680 | -$19,101,990 | -19.19% | |
| Mirova Us Llc | 1.04% | 619,117 | $97,176,604 | $78,528,800 | -$18,647,804 | -19.19% | |
| Northern Trust Corp | 0.01% | 594,404 | $93,297,652 | $75,394,203 | -$17,903,449 | -19.19% | |
| Liontrust Investment Partners Llp | 1.29% | 558,705 | $87,694,337 | $70,866,142 | -$16,828,195 | -19.19% | |
| Schroder Investment Management Group | 0.06% | 551,815 | $85,244,381 | $69,992,215 | -$15,252,166 | -17.89% | |
| Ameriprise Financial Inc | 0.02% | 528,473 | $82,953,266 | $67,031,515 | -$15,921,751 | -19.19% | |
| Triodos Investment Management Bv | 5.05% | 528,311 | $82,923,695 | $67,010,967 | -$15,912,728 | -19.19% | |
| Janus Henderson Group Plc | 0.04% | 592,581 | $81,278,314 | $75,162,974 | -$6,115,340 | -7.52% | |
| Hill City Capital, Lp | 1.76% | 480,000 | $75,340,800 | $60,883,200 | -$14,457,600 | -19.19% | |
| Bank Of New York Mellon Corp | 0.01% | 472,119 | $74,103,769 | $59,883,574 | -$14,220,195 | -19.19% | |
| Schonfeld Strategic Advisors Llc | 0.38% | 460,060 | $72,211,015 | $58,354,010 | -$13,857,005 | -19.19% | |
| Vanguard Fiduciary Trust Co | 0.02% | 457,355 | $71,786,441 | $58,010,908 | -$13,775,533 | -19.19% | |
| Interval Partners, Lp | 2.28% | 452,250 | $70,985,160 | $57,363,390 | -$13,621,770 | -19.19% | |
| Thrivent Financial For Lutherans | 0.11% | 425,647 | $66,809,000 | $53,989,065 | -$12,819,935 | -19.19% | |
| Swedbank Ab | 0.06% | 410,660 | $64,457,195 | $52,088,114 | -$12,369,081 | -19.19% | |
| Brown Brothers Harriman & Co | 0.28% | 405,502 | $63,647,594 | $51,433,874 | -$12,213,720 | -19.19% | |
| Ack Asset Management Llc | 7.15% | 390,000 | $61,214,400 | $49,467,600 | -$11,746,800 | -19.19% | |
| Westwood Holdings Group Inc | 0.44% | 367,876 | $57,741,829 | $46,661,392 | -$11,080,437 | -19.19% | |
| Corient Private Wealth Llc | 0.08% | 349,857 | $54,913,570 | $44,375,862 | -$10,537,708 | -19.19% | |
| Balyasny Asset Management L.P. | 0.10% | 342,925 | $53,825,508 | $43,496,607 | -$10,328,901 | -19.19% | |
| Bank Of America Corp | 0.00% | 340,259 | $53,407,068 | $43,158,452 | -$10,248,616 | -19.19% | |
| Allianz Asset Management Gmbh | 0.05% | 325,728 | $51,126,267 | $41,315,340 | -$9,810,927 | -19.19% | |
| Stifel Financial Corp | 0.04% | 316,418 | $49,665,130 | $40,134,459 | -$9,530,671 | -19.19% | |
| Marshall Wace, Llp | 0.04% | 314,509 | $49,365,332 | $39,892,322 | -$9,473,010 | -19.19% | |
| Pnc Financial Services Group, Inc. | 0.02% | 276,468 | $43,394,429 | $35,067,201 | -$8,327,228 | -19.19% |
Frequently asked questions about WMS
Who owns the most WMS stock?
The largest holders of WMS are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ADVANCED DRAINAGE SYSTEMS IN (WMS).
Is WMS widely held by superinvestors?
Many widely followed stocks like WMS appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly WMS is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.