| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 8.9% | $790,844,639 | 6,885,292 | BlackRock, Inc. | 30 Jun 2025 |
As of 30 Sep 2025, 490 institutional investors reported holding 71,646,095 shares of ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock (WMS). This represents 93% of the company’s total 77,362,831 outstanding shares.
The largest institutional shareholders of ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock (WMS) together control 61% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 9.7% | 7,480,781 | -0.38% | 0.02% | $1,037,584,325 |
| BlackRock, Inc. | 9.1% | 7,042,895 | -0.4% | 0.02% | $976,849,466 |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 3.6% | 2,811,834 | -9.7% | 0.08% | $390,001,376 |
| STATE STREET CORP | 3.3% | 2,551,901 | +3.1% | 0.01% | $353,948,669 |
| Impax Asset Management Group plc | 3.2% | 2,500,076 | -18% | 2% | $345,787,561 |
| FIRST TRUST ADVISORS LP | 3.1% | 2,416,942 | +11% | 0.25% | $335,229,749 |
| BAILLIE GIFFORD & CO | 3.1% | 2,395,071 | -3.1% | 0.25% | $332,196,348 |
| Pictet Asset Management Holding SA | 2.7% | 2,071,398 | -20% | 0.28% | $287,297,920 |
| MORGAN STANLEY | 2.6% | 2,001,013 | +20% | 0.02% | $277,540,963 |
| Impactive Capital LP | 2.2% | 1,663,999 | 0% | 11% | $230,796,661 |
| AMERICAN CENTURY COMPANIES INC | 1.9% | 1,472,176 | +6.5% | 0.1% | $204,190,811 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1.6% | 1,258,264 | -1.6% | 0.43% | $174,521,308 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.6% | 1,256,384 | +2.8% | 0.01% | $174,294,196 |
| WELLINGTON MANAGEMENT GROUP LLP | 1.5% | 1,188,906 | +234% | 0.03% | $164,901,262 |
| DIMENSIONAL FUND ADVISORS LP | 1.5% | 1,138,378 | +1.4% | 0.03% | $157,889,410 |
| Invesco Ltd. | 1.3% | 998,451 | -1.1% | 0.02% | $138,485,155 |
| Interval Partners, LP | 1.3% | 968,534 | +98% | 2.9% | $134,335,666 |
| Capital International Investors | 1.2% | 933,851 | +35% | 0.02% | $129,525,134 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.1% | 820,203 | -12% | 0.29% | $113,762,087 |
| Amundi | 0.91% | 707,383 | -39% | 0.03% | $98,339,298 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.9% | 698,269 | +4.8% | 0.02% | $96,849,910 |
| Mirova US LLC | 0.88% | 681,397 | -3.8% | 0.95% | $94,509,764 |
| Schonfeld Strategic Advisors LLC | 0.83% | 642,208 | +51% | 0.62% | $89,074,242 |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 0.81% | 630,399 | +17% | 0.07% | $86,995,062 |
| Liontrust Investment Partners LLP | 0.81% | 626,997 | -5.1% | 1.3% | $86,964,484 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 463,309 | $67,379,329 | +$4,277,771 | $144.83 | 38 |
| 2025 Q3 | 71,646,095 | $9,935,589,901 | +$19,051,387 | $138.70 | 490 |
| 2025 Q2 | 72,460,777 | $8,316,490,878 | +$392,812,531 | $114.86 | 476 |
| 2025 Q1 | 69,081,341 | $7,503,859,325 | +$191,875,639 | $108.65 | 454 |
| 2024 Q4 | 67,148,975 | $7,761,268,621 | +$140,140,987 | $115.60 | 455 |
| 2024 Q3 | 65,637,961 | $10,319,094,768 | +$255,926,895 | $157.16 | 479 |
| 2024 Q2 | 63,681,059 | $10,213,797,161 | +$61,619,081 | $160.39 | 493 |
| 2024 Q1 | 62,709,180 | $10,796,152,755 | -$181,227,161 | $172.24 | 484 |
| 2023 Q4 | 64,452,876 | $9,062,774,942 | -$241,927,026 | $140.64 | 421 |
| 2023 Q3 | 66,242,536 | $7,540,127,752 | -$286,685,155 | $113.83 | 409 |
| 2023 Q2 | 67,574,827 | $7,687,729,460 | +$25,285,129 | $113.78 | 375 |
| 2023 Q1 | 68,213,656 | $5,739,727,508 | +$156,321,415 | $84.21 | 349 |
| 2022 Q4 | 66,490,595 | $5,450,310,105 | -$98,788,117 | $81.97 | 359 |
| 2022 Q3 | 66,918,396 | $8,321,557,813 | +$114,841,568 | $124.37 | 369 |
| 2022 Q2 | 65,826,410 | $5,929,653,744 | -$56,907,493 | $90.07 | 316 |
| 2022 Q1 | 66,733,370 | $7,927,291,712 | +$207,617,452 | $118.81 | 307 |
| 2021 Q4 | 64,853,461 | $8,825,623,917 | -$18,186,640 | $136.13 | 307 |
| 2021 Q3 | 63,980,055 | $6,919,923,898 | +$432,295,355 | $108.17 | 282 |
| 2021 Q2 | 59,810,505 | $6,970,612,971 | +$16,497,404 | $116.57 | 274 |
| 2021 Q1 | 59,775,103 | $6,180,454,958 | -$34,975,469 | $103.39 | 264 |
| 2020 Q4 | 59,916,220 | $5,008,204,788 | +$10,023,389 | $83.58 | 226 |
| 2020 Q3 | 59,953,021 | $3,739,569,310 | +$55,071,696 | $62.44 | 202 |
| 2020 Q2 | 59,324,615 | $2,930,471,076 | +$87,582,563 | $49.40 | 171 |
| 2020 Q1 | 57,779,714 | $1,700,448,500 | -$3,304,048 | $29.44 | 157 |
| 2019 Q4 | 57,869,420 | $2,247,317,285 | +$91,378,327 | $38.84 | 161 |
| 2019 Q3 | 55,070,810 | $1,776,782,132 | +$319,826,724 | $32.27 | 150 |
| 2019 Q2 | 45,239,781 | $1,482,420,598 | +$22,217,529 | $32.79 | 134 |
| 2019 Q1 | 46,434,718 | $1,192,127,556 | +$9,912,501 | $25.77 | 135 |
| 2018 Q4 | 46,361,953 | $1,121,588,707 | -$12,566,898 | $24.25 | 142 |
| 2018 Q3 | 46,588,839 | $1,439,233,572 | +$56,481,198 | $30.90 | 142 |
| 2018 Q2 | 44,453,935 | $1,269,201,535 | +$72,940,995 | $28.55 | 117 |
| 2018 Q1 | 44,466,449 | $1,151,650,313 | -$2,484,799 | $25.90 | 118 |
| 2017 Q4 | 44,743,497 | $1,067,422,796 | +$6,632,305 | $23.85 | 105 |
| 2017 Q3 | 45,061,371 | $913,124,163 | +$28,166,376 | $20.25 | 98 |
| 2017 Q2 | 43,693,451 | $875,417,706 | -$17,283,783 | $20.10 | 97 |
| 2017 Q1 | 44,372,107 | $971,455,341 | +$16,615,511 | $21.90 | 106 |
| 2016 Q4 | 45,697,609 | $941,356,898 | -$17,232,454 | $20.60 | 102 |
| 2016 Q3 | 38,685,925 | $930,423,417 | -$16,773,758 | $24.06 | 98 |
| 2016 Q2 | 38,985,735 | $1,063,640,864 | +$56,884,773 | $27.37 | 101 |
| 2016 Q1 | 37,461,032 | $797,871,000 | +$13,588,638 | $21.30 | 97 |
| 2015 Q4 | 44,317,249 | $1,064,931,569 | -$19,706,315 | $24.03 | 88 |
| 2015 Q3 | 36,886,248 | $1,067,098,433 | +$75,826,244 | $28.93 | 93 |
| 2015 Q2 | 34,055,127 | $998,823,959 | +$59,176,435 | $29.33 | 105 |
| 2015 Q1 | 31,965,052 | $955,779,100 | +$99,576,475 | $29.94 | 97 |
| 2014 Q4 | 37,481,537 | $861,767,363 | +$290,388,053 | $22.98 | 93 |
| 2014 Q3 | 13,653,744 | $285,994,000 | +$285,994,000 | $20.95 | 54 |