WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Position in WMS — Advanced Drainage Systems, Inc.
CIK 1644956
CHICAGO, IL
Position in WMS
as of Mar 31, 2026
· filed May 8, 2026
Position Value
$89,913,946
-$9,735,901 QoQ
Shares Held
655,684
-4.7% QoQ
Ownership
0.870%
of shares outstanding
% of Portfolio
0.30%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2022
16 quarters on record
Voting authority
Sole 99%
Shared 0%
None 1%
Common Shares in WMS Over Time
Shares Held
Position Value (USD)
All Filings in WMS
Export CSV
16 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $89,913,946 | 655,684 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $99,649,847 | 688,047 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $113,762,156 | 820,203 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $107,232,721 | 933,595 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $110,090,155 | 1,013,255 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $120,235,444 | 1,040,099 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $179,709,159 | 1,143,479 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $229,372,295 | 1,430,091 | Shares | Sole | 2024-08-08 | |
| 2024-03-31 | $235,189,069 | 1,365,473 | Shares | Sole | 2024-05-08 | |
| 2023-12-31 | $195,217,461 | 1,388,065 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $164,521,458 | 1,445,326 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $145,161,548 | 1,275,809 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $129,382,096 | 1,536,422 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $99,082,385 | 1,208,764 | Shares | Sole | 2023-02-09 | |
| 2022-09-30 | $159,336,501 | 1,281,149 | Shares | Sole | 2022-11-09 | |
| 2022-06-30 | $79,003,459 | 877,134 | Shares | Sole | 2022-08-10 | |
| No filing history on record for this holder in this stock. | ||||||