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California Water Service

326 hedge funds and large institutions have $2.17B invested in California Water Service in 2025 Q4 according to their latest regulatory filings, with 36 funds opening new positions, 98 increasing their positions, 129 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more ownership

Funds ownership:

more funds holding in top 10

Funds holding in top 10:

less first-time investments, than exits

New positions opened: | Existing positions closed:

3% less funds holding

Funds holding: 335326 (-9)

6% less capital invested

Capital invested by funds: $2.3B → $2.17B (-$127M)

24% less repeat investments, than reductions

Existing positions increased: 98 | Existing positions reduced: 129

Holders
326
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.16M
Puts
$9K
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
AllianceBernstein
51
AllianceBernstein
Tennessee
$3.61M
NAMM
52
NorthStar Asset Management (Massachusetts)
Massachusetts
$3.59M
MAM
53
Martingale Asset Management
Massachusetts
$3.53M
Jacobs Levy Equity Management
54
Jacobs Levy Equity Management
New Jersey
$3.51M
T. Rowe Price Associates
55
T. Rowe Price Associates
Maryland
$3.22M
Prudential Financial
56
Prudential Financial
New Jersey
$3.04M
D.E. Shaw & Co
57
D.E. Shaw & Co
New York
$2.87M
MSRPS
58
Maryland State Retirement & Pension System
Maryland
$2.79M
New York State Teachers Retirement System (NYSTRS)
59
New York State Teachers Retirement System (NYSTRS)
New York
$2.73M
AQR Capital Management
60
AQR Capital Management
Connecticut
$2.65M
TD Asset Management
61
TD Asset Management
Ontario, Canada
$2.51M
California State Teachers Retirement System (CalSTRS)
62
California State Teachers Retirement System (CalSTRS)
California
$2.46M
MT
63
Midwest Trust
Kansas
$2.36M
FISPB
64
Fideuram - Intesa Sanpaolo Private Banking
$2.36M
Allianz Asset Management
65
Allianz Asset Management
Germany
$2.32M
RB
66
Rodgers Brothers
Pennsylvania
$2.26M
Citigroup
67
Citigroup
New York
$2.26M
ETC
68
Exchange Traded Concepts
Oklahoma
$2.23M
Franklin Resources
69
Franklin Resources
California
$2.18M
Arrowstreet Capital
70
Arrowstreet Capital
Massachusetts
$2.16M
CHAM
71
Clear Harbor Asset Management
Connecticut
$2.15M
MAM
72
Magellan Asset Management
Australia
$2.11M
State of New Jersey Common Pension Fund D
73
State of New Jersey Common Pension Fund D
New Jersey
$2.08M
Jane Street
74
Jane Street
New York
$1.88M
GF
75
Gabelli Funds
New York
$1.87M