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Advanced Drainage Systems

538 hedge funds and large institutions have $10.3B invested in Advanced Drainage Systems in 2025 Q4 according to their latest regulatory filings, with 88 funds opening new positions, 160 increasing their positions, 212 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding

Funds holding:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more capital invested

Capital invested by funds: $ → $

2.07% less ownership

Funds ownership: 93.39%91.33% (-2.1%)

25% less repeat investments, than reductions

Existing positions increased: 160 | Existing positions reduced: 212

33% less funds holding in top 10

Funds holding in top 10: 96 (-3)

Holders
538
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
6
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$31.8M
Puts
$30.1M
Net Calls
Net Calls Change

Top Sellers

1 -$108M
2 -$62.7M
3 -$59.8M
4
Morgan Stanley
Morgan Stanley
New York
-$42.1M
5
UBS AM
UBS AM
Illinois
-$37.1M
Name Holding Trade Value Shares
Change
Change in
Stake
P
201
&Partners
Tennessee
$2.51M
SOMRS
202
State of Michigan Retirement System
Michigan
$2.45M
OC
203
Oppenheimer & Co
New York
$2.39M
MAM
204
Montanaro Asset Management
United Kingdom
$2.36M
NMIMC
205
Northwestern Mutual Investment Management Company
Wisconsin
$2.32M
KK
206
KLP Kapitalforvaltning
Norway
$2.29M
Cerity Partners
207
Cerity Partners
New York
$2.29M
CIM
208
Corbyn Investment Management
Maryland
$2.23M
EMCIP
209
Ewing Morris & Co Investment Partners
Ontario, Canada
$2.18M
VFPW
210
Vantage Financial Partners (Wisconsin)
Wisconsin
$2.12M
EMPI
211
Elo Mutual Pension Insurance
Finland
$2.09M
Bank of Montreal
212
Bank of Montreal
Ontario, Canada
$2.08M
OPERF
213
Oregon Public Employees Retirement Fund
Oregon
$2.07M
NMERB
214
New Mexico Educational Retirement Board
New Mexico
$2.04M
Marshall Wace
215
Marshall Wace
United Kingdom
$2.02M
SO
216
STRS Ohio
Ohio
$1.97M
AIP
217
Ameritas Investment Partners
Nebraska
$1.9M
EGM
218
Engineers Gate Manager
New York
$1.88M
AWM
219
Absher Wealth Management
North Carolina
$1.77M
VAS
220
Vestmark Advisory Solutions
Massachusetts
$1.76M
Mariner
221
Mariner
Kansas
$1.73M
ClearBridge Investments
222
ClearBridge Investments
New York
$1.73M
Citigroup
223
Citigroup
New York
$1.71M
MK
224
MASTERINVEST Kapitalanlage
$1.56M
ETC
225
Exchange Traded Concepts
Oklahoma
$1.55M