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Advanced Drainage Systems

536 hedge funds and large institutions have $10.2B invested in Advanced Drainage Systems in 2025 Q4 according to their latest regulatory filings, with 88 funds opening new positions, 159 increasing their positions, 211 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: $ → $

2.57% less ownership

Funds ownership: 93.39%90.82% (-2.6%)

25% less repeat investments, than reductions

Existing positions increased: 159 | Existing positions reduced: 211

33% less funds holding in top 10

Funds holding in top 10: 96 (-3)

Holders
536
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
Massachusetts Financial Services
76
Massachusetts Financial Services
Massachusetts
$22.4M
Principal Financial Group
77
Principal Financial Group
Iowa
$22.3M
RG
78
Rathbones Group
United Kingdom
$22M
Adage Capital Partners
79
Adage Capital Partners
Massachusetts
$21.7M
JAM
80
Jupiter Asset Management
United Kingdom
$21.2M
Swiss National Bank
81
Swiss National Bank
Switzerland
$21.1M
DPIM
82
Duff & Phelps Investment Management
Illinois
$20.2M
Royal Bank of Canada
83
Royal Bank of Canada
Ontario, Canada
$19.8M
CRM
84
Cramer Rosenthal McGlynn
Connecticut
$19.8M
DCM
85
Driehaus Capital Management
Illinois
$19.2M
BNP Paribas Asset Management
86
BNP Paribas Asset Management
France
$19M
Wells Fargo
87
Wells Fargo
California
$18.9M
California Public Employees Retirement System
88
California Public Employees Retirement System
California
$18.1M
Jane Street
89
Jane Street
New York
$18M
MC
90
MIG Capital
California
$17.3M
WCM Investment Management
91
WCM Investment Management
California
$17.3M
AAB
92
ABN AMRO Bank
Netherlands
$17.2M
SAM
93
Scopus Asset Management
New York
$17.1M
TAF
94
Tredje AP-fonden
Sweden
$15.9M
Loomis, Sayles & Company
95
Loomis, Sayles & Company
Massachusetts
$15.7M
MF
96
Milford Funds
$15.6M
AIM
97
Achmea Investment Management
Netherlands
$15.3M
CM
98
Cercano Management
Washington
$14.5M
PL
99
Perpetual Ltd
Australia
$14M
PCM
100
Peregrine Capital Management
Minnesota
$14M