Advanced Drainage Systems
482 hedge funds and large institutions have $8.34B invested in Advanced Drainage Systems in 2025 Q2 according to their latest regulatory filings, with 73 funds opening new positions, 186 increasing their positions, 167 reducing their positions, and 51 closing their positions.
152% more call options, than puts
Call options by funds: $16M | Put options by funds: $6.33M
67% more funds holding in top 10
Funds holding in top 10: 3 → 5 (+2)
43% more first-time investments, than exits
New positions opened: 73 | Existing positions closed: 51
11% more repeat investments, than reductions
Existing positions increased: 186 | Existing positions reduced: 167
10% more capital invested
Capital invested by funds: $7.59B → $8.34B (+$745M)
5% more funds holding
Funds holding: 461 → 482 (+21)
3.46% more ownership
Funds ownership: 90.08% → 93.54% (+3.5%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
IC
Impactive Capital
New York City,
New York
|
+$186M |
| 2 |
Kayne Anderson Rudnick Investment Management
Los Angeles,
California
|
+$130M |
| 3 |
Capital International Investors
Los Angeles,
California
|
+$63.1M |
| 4 |
IP
Interval Partners
New York
|
+$54.8M |
| 5 |
SSA
Schonfeld Strategic Advisors
New York
|
+$40M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Invesco
Atlanta,
Georgia
|
-$81.2M |
| 2 |
Pictet Asset Management
Carouge,
Switzerland
|
-$64.9M |
| 3 |
Swedbank
Stockholm,
Sweden
|
-$48M |
| 4 |
Alyeska Investment Group
Chicago,
Illinois
|
-$45.9M |
| 5 |
BlackRock
New York
|
-$26.1M |
WMS Hedge Fund Activity: Q2 2025 in Review
482 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Advanced Drainage Systems (WMS) for Q2 2025, worth a combined $8.34B — up 9.8% from $7.59B a quarter earlier.
Buyers outnumbered sellers: 73 funds opened new WMS positions and 51 closed out — a net gain of 22 holders — while 186 added to existing stakes and 167 trimmed.
The largest buyer was Impactive Capital, opening a new position worth an estimated $186M. The largest seller was Invesco, cutting an estimated $81.2M.
- 482 institutional investors held Advanced Drainage Systems (WMS) as of Q2 2025, up from 461 in Q1 2025.
- Funds reported $8.34B of Advanced Drainage Systems stock for Q2 2025, up 9.8% quarter-over-quarter.
- 73 funds opened new Advanced Drainage Systems positions in Q2 2025 and 51 closed out, a net change of +22 holders.
- The largest Advanced Drainage Systems buyer in Q2 2025 was Impactive Capital, an estimated $186M added.
- The largest Advanced Drainage Systems seller in Q2 2025 was Invesco, an estimated $81.2M sold.
Based on aggregated 13F filings for Q2 2025.