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Advanced Drainage Systems

545 hedge funds and large institutions have $10.3B invested in Advanced Drainage Systems in 2025 Q4 according to their latest regulatory filings, with 92 funds opening new positions, 160 increasing their positions, 214 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

142% more first-time investments, than exits

New positions opened: 92 | Existing positions closed: 38

9% more funds holding

Funds holding: 498545 (+47)

6% more call options, than puts

Call options by funds: $31.8M | Put options by funds: $30.1M

2% more capital invested

Capital invested by funds: $10.1B → $10.3B (+$216M)

2.08% less ownership

Funds ownership: 93.69%91.61% (-2.1%)

25% less repeat investments, than reductions

Existing positions increased: 160 | Existing positions reduced: 214

33% less funds holding in top 10

Funds holding in top 10: 96 (-3)

Holders
545
Holders Change
+47
Holders Change %
+9.44%
% of All Funds
6.63%
Holding in Top 10
6
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-33.33%
% of All Funds
0.07%
New
92
Increased
160
Reduced
214
Closed
38
Calls
$31.8M
Puts
$30.1M
Net Calls
+$1.7M
Net Calls Change
-$15.5M
Name Holding Trade Value Shares
Change
Change in
Stake
AAMU
76
AEGON Asset Management (UK)
United Kingdom
$22.8M -$6.51M -44,970 -22%
SAM
77
Storebrand Asset Management
Norway
$22.5M -$1.17M -8,066 -5%
Massachusetts Financial Services
78
Massachusetts Financial Services
Massachusetts
$22.4M +$16.7M +115,633 +298%
Principal Financial Group
79
Principal Financial Group
Iowa
$22.3M -$729K -5,034 -3%
RG
80
Rathbones Group
United Kingdom
$22M -$735K -5,073 -3%
Adage Capital Partners
81
Adage Capital Partners
Massachusetts
$21.7M -$12.2M -84,000 -36%
JAM
82
Jupiter Asset Management
United Kingdom
$21.2M -$3.68M -25,436 -15%
Swiss National Bank
83
Swiss National Bank
Switzerland
$21.1M +$391K +2,700 +2%
DPIM
84
Duff & Phelps Investment Management
Illinois
$20.2M +$441K +3,048 +2%
Royal Bank of Canada
85
Royal Bank of Canada
Ontario, Canada
$19.8M -$355K -2,455 -2%
CRM
86
Cramer Rosenthal McGlynn
Connecticut
$19.8M -$150K -1,034 -0.8%
DCM
87
Driehaus Capital Management
Illinois
$19.2M +$1.13M +7,815 +6%
BNP Paribas Asset Management
88
BNP Paribas Asset Management
France
$19M +$15.8M +108,776 +492%
Wells Fargo
89
Wells Fargo
California
$18.9M -$3.55M -24,494 -16%
California Public Employees Retirement System
90
California Public Employees Retirement System
California
$18.1M +$99.6K +688 +0.6%
Jane Street
91
Jane Street
New York
$18M +$16.9M +116,637 +1,591%
MC
92
MIG Capital
California
$17.3M -$8.71M -60,170 -33%
WCM Investment Management
93
WCM Investment Management
California
$17.3M +$17M +117,572 New
AAB
94
ABN AMRO Bank
Netherlands
$17.2M -$1.14M -7,856 -6%
SAM
95
Scopus Asset Management
New York
$17.1M -$4.94M -34,138 -22%
TAF
96
Tredje AP-fonden
Sweden
$15.9M +$15.9M +110,028 New
Loomis, Sayles & Company
97
Loomis, Sayles & Company
Massachusetts
$15.7M +$622K +4,295 +4%
MF
98
Milford Funds
$15.6M +$15.6M +108,000 New
AIM
99
Achmea Investment Management
Netherlands
$15.3M -$3.46M -23,899 -18%
CM
100
Cercano Management
Washington
$14.5M