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WMS · Advanced Drainage Systems, Inc. · Holdings

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$127.27 +0.41 (+0.32%) At close · Oct 2
Market Cap
$10.04B
Shares
75.41M
Volume · Oct 2 538.16K Avg daily vol (3M) 693.96K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 558
Total Value: $10,969,866,793
Total Shares: 69,908,066
Showing 1–100 of 569 holdings by value · page 1 of 6

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 557 13F filers
Top Holder
10.7%
Sep 2023 → Jun 2026 · range 10.2% – 12.0%
of institutional value
Top 5
28.5%
Sep 2023 → Jun 2026 · range 27.9% – 36.3%
of institutional value
Top 10
41.5%
Sep 2023 → Jun 2026 · range 41.5% – 49.0%
of institutional value
HHI
275
Sep 2023 → Jun 2026 · range 274 – 394
Broadly held
Showing 100 of 569
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1604028 CUSIP 00790R104 13F (30d) 24 filings 18 filers Visit website Investor relations