Advanced Drainage Systems
463 hedge funds and large institutions have $7.59B invested in Advanced Drainage Systems in 2025 Q1 according to their latest regulatory filings, with 57 funds opening new positions, 199 increasing their positions, 148 reducing their positions, and 56 closing their positions.
62% more capital inflows, than outflows
Capital inflows: $768M | Capital outflows: $473M
34% more repeat investments, than reductions
Existing positions increased: 199 | Existing positions reduced: 148
24% more call options, than puts
Call options by funds: $34.8M | Put options by funds: $28.1M
3.21% more ownership
Funds ownership: 86.87% → 90.08% (+3.2%)
2% more first-time investments, than exits
New positions opened: 57 | Existing positions closed: 56
0% less funds holding
Funds holding: 465 → 463 (-2)
25% less funds holding in top 10
Funds holding in top 10: 4 → 3 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS AM
Chicago,
Illinois
|
+$122M |
| 2 |
Impax Asset Management Group
London,
United Kingdom
|
+$43.6M |
| 3 |
First Trust Advisors
Wheaton,
Illinois
|
+$38.2M |
| 4 |
Amundi
Paris,
France
|
+$38.1M |
| 5 |
BAMCO Inc
New York
|
+$35.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Swedbank
Stockholm,
Sweden
|
-$57.8M |
| 2 |
Close Asset Management
London,
United Kingdom
|
-$43.7M |
| 3 |
Voloridge Investment Management
Jupiter,
Florida
|
-$25.4M |
| 4 |
Alyeska Investment Group
Chicago,
Illinois
|
-$21.6M |
| 5 |
Baillie Gifford & Co
Edinburgh,
United Kingdom
|
-$20.6M |
WMS Hedge Fund Activity: Q1 2025 in Review
463 of the 7,485 institutional investors tracked by Wall St. Rank reported a position in Advanced Drainage Systems (WMS) for Q1 2025, worth a combined $7.59B — down 2.5% from $7.79B a quarter earlier.
Buyers outnumbered sellers: 57 funds opened new WMS positions and 56 closed out — a net gain of 1 holder — while 199 added to existing stakes and 148 trimmed.
The largest buyer was UBS AM, adding an estimated $122M. The largest seller was Swedbank, cutting an estimated $57.8M.
- 463 institutional investors held Advanced Drainage Systems (WMS) as of Q1 2025, down from 465 in Q4 2024.
- Funds reported $7.59B of Advanced Drainage Systems stock for Q1 2025, down 2.5% quarter-over-quarter.
- 57 funds opened new Advanced Drainage Systems positions in Q1 2025 and 56 closed out, a net change of +1 holder.
- The largest Advanced Drainage Systems buyer in Q1 2025 was UBS AM, an estimated $122M added.
- The largest Advanced Drainage Systems seller in Q1 2025 was Swedbank, an estimated $57.8M sold.
Based on aggregated 13F filings for Q1 2025.