Latest Period
Q1 2026
Security Snapshot
ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock (WMS) Institutional Ownership
CUSIP: 00790R104
13F Institutional Holders and Ownership History from Q3 2014 to Q1 2026
Institutions Reporting
572
Shares (Excl. Options)
69,355,561
Price
$137.13
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- Security type / class
- Equity / Common Stock
- Symbol
- WMS on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 69,355,561
- Total 13F value
- $9,505,987,315
- Portfolio coverage rank
- 0.01%
- Share change
- -1,910,288
- Value change
- -$274,775,823
- Number of holders
- 572
- Shares outstanding
- 78,022,980
- SEC-reported price per share
- $146.41
- Insider filing price
- $146.41
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- WMS - ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock is tracked under CUSIP 00790R104.
- 572 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 542 to 572 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $10,323,948,664 to $9,505,987,315.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 572 institutions filings for Q1 2026.
Security key
00790R104
Latest holder period
Q1 2026
13F holders
572
13D/G owners
3
CIK / CUSIP context first
Open Q1 2026 holders
WMS full holder history
ADVANCED DRAINAGE SYSTEMS, INC. SEC filings
ADVANCED DRAINAGE SYSTEMS, INC. company facts
ADVANCED DRAINAGE SYSTEMS, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 00790R104:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
WMS
| 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 | |||
| DELAWARE CHARTER GUARANTEE & TRUST CO | 6% | $701,834,983 | 4,629,213 | Advanced Drainage Systems Inc. Employee Stock Ownership Plan Trust | 31 Dec 2025 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.1% | $545,663,856 | 3,979,172 | Vanguard Capital Management | 31 Mar 2026 |
As of 31 Mar 2026, 572 institutional investors reported holding 69,355,561 shares of ADVANCED DRAINAGE SYSTEMS, INC. - Common Stock (WMS). This represents 89% of the company’s total 78,022,980 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
55%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9.5% | 7,422,729 | +4.4% | 0.02% | $1,017,878,779 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.6% | 3,615,687 | 0% | 0.03% | $495,819,158 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.4% | 3,423,703 | 0% | 0.01% | $469,492,392 |
| STATE STREET CORP | 3.2% | 2,489,531 | +0.81% | 0.01% | $341,389,386 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 3.1% | 2,450,123 | -4.1% | 0.07% | $335,985,368 |
| Pictet Asset Management Holding SA | 2.8% | 2,204,801 | +33% | 0.32% | $302,290,275 |
| BAILLIE GIFFORD & CO | 2.6% | 2,047,349 | -8.8% | 0.29% | $280,752,969 |
| FIRST TRUST ADVISORS LP | 2.6% | 2,044,057 | -16% | 0.2% | $280,301,449 |
| Impax Asset Management Group plc | 2.5% | 1,927,510 | -6.7% | 1.8% | $264,319,446 |
| AMERICAN CENTURY COMPANIES INC | 2.1% | 1,657,753 | +9.5% | 0.12% | $227,327,669 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7% | 1,344,795 | +5.8% | 0.01% | $184,456,288 |
| MORGAN STANLEY | 1.7% | 1,333,340 | -22% | 0.01% | $182,841,559 |
| Amundi | 1.7% | 1,288,672 | +0.71% | 0.05% | $176,734,018 |
| DIMENSIONAL FUND ADVISORS LP | 1.5% | 1,191,778 | +0.23% | 0.03% | $163,396,426 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1.4% | 1,106,423 | -7.1% | 0.45% | $151,723,861 |
| WELLINGTON MANAGEMENT GROUP LLP | 1.4% | 1,063,231 | -16% | 0.03% | $145,800,867 |
| Invesco Ltd. | 1.3% | 982,528 | -0.18% | 0.02% | $134,734,063 |
| KBC Group NV | 1.2% | 916,981 | +1.7% | 0.32% | $125,746,000 |
| Impactive Capital LP | 1.1% | 856,492 | -41% | 8.5% | $117,450,748 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.9% | 702,650 | -2.1% | 0.01% | $96,354,395 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 0.84% | 655,684 | -4.7% | 0.3% | $89,913,947 |
| Capital International Investors | 0.82% | 639,021 | -32% | 0.02% | $87,628,950 |
| Mirova US LLC | 0.81% | 628,843 | -4.9% | 0.98% | $86,233,241 |
| JANUS HENDERSON GROUP PLC | 0.76% | 592,581 | -1% | 0.04% | $81,278,314 |
| NORTHERN TRUST CORP | 0.76% | 589,186 | +1% | 0.01% | $80,795,077 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
47
Latest
Q1 2026
Rows shown
1-25 of 47
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 69,355,561 | $9,505,987,315 | -$274,775,823 | $137.13 | 572 |
| 2025 Q4 | 71,249,018 | $10,323,948,664 | -$192,101,449 | $144.83 | 542 |
| 2025 Q3 | 72,556,291 | $10,061,834,326 | +$28,663,584 | $138.70 | 494 |
| 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 |