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California Water Service

338 hedge funds and large institutions have $2.36B invested in California Water Service in 2025 Q2 according to their latest regulatory filings, with 42 funds opening new positions, 127 increasing their positions, 115 reducing their positions, and 31 closing their positions.

New
Increased
Maintained
Reduced
Closed

35% more first-time investments, than exits

New positions opened: 42 | Existing positions closed: 31

10% more repeat investments, than reductions

Existing positions increased: 127 | Existing positions reduced: 115

2% more funds holding

Funds holding: 330338 (+8)

0.38% less ownership

Funds ownership: 84.92%84.54% (-0.38%)

4% less capital invested

Capital invested by funds: $2.45B → $2.36B (-$92.6M)

24% less call options, than puts

Call options by funds: $90K | Put options by funds: $118K

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
338
Holders Change
+8
Holders Change %
+2.42%
% of All Funds
4.45%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.01%
New
42
Increased
127
Reduced
115
Closed
31
Calls
$90K
Puts
$118K
Net Calls
-$28K
Net Calls Change
-$232K
Name Holding Trade Value Shares
Change
Change in
Stake
Principal Financial Group
26
Principal Financial Group
Iowa
$13.4M -$47.6K -994 -0.3%
Renaissance Technologies
27
Renaissance Technologies
New York
$12.8M +$3.62M +75,600 +37%
Victory Capital Management
28
Victory Capital Management
Texas
$12.3M +$737K +15,406 +6%
JP Morgan Chase
29
JP Morgan Chase
New York
$11M -$743K -15,534 -6%
Goldman Sachs
30
Goldman Sachs
New York
$10.3M -$10.8M -226,635 -50%
Public Sector Pension Investment Board (PSP Investments)
31
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$9.24M +$695K +14,521 +8%
RhumbLine Advisers
32
RhumbLine Advisers
Massachusetts
$8.59M +$51.7K +1,080 +0.6%
Ameriprise
33
Ameriprise
Minnesota
$8.03M -$299K -6,255 -3%
UBS Group
34
UBS Group
Switzerland
$7.79M +$2.38M +49,690 +41%
Bank of America
35
Bank of America
North Carolina
$7.4M +$2.48M +51,757 +47%
ACA
36
Aptus Capital Advisors
Alabama
$7.04M +$669K +13,980 +10%
TAM
37
Thematics Asset Management
France
$7.03M
ProShare Advisors
38
ProShare Advisors
Maryland
$6.78M -$883K -18,449 -11%
T. Rowe Price Associates
39
T. Rowe Price Associates
Maryland
$6.74M +$4.3M +89,847 +154%
Jane Street
40
Jane Street
New York
$6.37M +$795K +16,610 +13%
Barclays
41
Barclays
United Kingdom
$6.25M +$1.36M +28,416 +26%
Royal Bank of Canada
42
Royal Bank of Canada
Ontario, Canada
$5.85M +$4.93M +103,076 +405%
Canada Life
43
Canada Life
Manitoba, Canada
$5.83M +$59.1K +1,234 +1%
COPPSERS
44
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$5.22M +$50.8K +1,062 +0.9%
American Century Companies
45
American Century Companies
Missouri
$5.21M +$499K +10,426 +10%
Swiss National Bank
46
Swiss National Bank
Switzerland
$5.17M -$81.4K -1,700 -1%
AllianceBernstein
47
AllianceBernstein
Tennessee
$4.97M +$423K +8,839 +9%
NAAA
48
New Age Alpha Advisors
New York
$4.75M -$501K -10,467 -9%
NAMM
49
NorthStar Asset Management (Massachusetts)
Massachusetts
$4.65M +$33.9K +709 +0.7%
Adage Capital Partners
50
Adage Capital Partners
Massachusetts
$4.55M +$4.79M +100,000 New

CWT Hedge Fund Activity: Q2 2025 in Review

338 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in California Water Service (CWT) for Q2 2025, worth a combined $2.36B — down 3.8% from $2.45B a quarter earlier.

Buyers outnumbered sellers: 42 funds opened new CWT positions and 31 closed out — a net gain of 11 holders — while 127 added to existing stakes and 115 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $47.3M. The largest seller was BlackRock, cutting an estimated $29.3M.

  • 338 institutional investors held California Water Service (CWT) as of Q2 2025, up from 330 in Q1 2025.
  • Funds reported $2.36B of California Water Service stock for Q2 2025, down 3.8% quarter-over-quarter.
  • 42 funds opened new California Water Service positions in Q2 2025 and 31 closed out, a net change of +11 holders.
  • The largest California Water Service buyer in Q2 2025 was Fidelity Investments, an estimated $47.3M added.
  • The largest California Water Service seller in Q2 2025 was BlackRock, an estimated $29.3M sold.

Based on aggregated 13F filings for Q2 2025.