Stock Ownership/CWT

CALIFORNIA WTR SVC GROUP (CWT): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in CWT · Utilities. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
11
13F filers
Aggregate Value
$84.0M
Across holders
Last Price
$50.85
2026-08-24
Sector
Utilities
GICS
Quarterly fund activity9 increased2 reduced6 exited
Full exits: VOLORIDGE INVESTMENT MANAGEMENT, LLC, Bridgewater Associates, LP, MARSHALL WACE, LLP, Qube Research & Technologies Ltd, Holocene Advisors, LP, Brevan Howard Capital Management LP
Institutional Holders of CWT
↗
11 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund682K$33.2M39.5%0.0%Added+$33.1MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund365K$17.8M21.2%0.0%Added+$5.2MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund196K$9.6M11.4%0.0%Added+$8.7MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund193K$9.4M11.1%0.0%Added+$5.3MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund144K$7.0M8.3%0.0%Added+$2.1MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund110K$5.4M6.4%0.0%Added+$2.4MQ2 2026
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
Institutional Manager15K$732K0.9%0.0%Added—Q2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund9K$419K0.5%0.0%Reduced$-3.3MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund9K$415K0.5%0.0%Reduced$-2.0MQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund5K$227K0.3%0.0%Added+$95KQ2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$33.2M· 39.5% of total· 0.0% port· 682K sh· +$33.1M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$17.8M· 21.2% of total· 0.0% port· 365K sh· +$5.2M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$9.6M· 11.4% of total· 0.0% port· 196K sh· +$8.7M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$9.4M· 11.1% of total· 0.0% port· 193K sh· +$5.3M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$7.0M· 8.3% of total· 0.0% port· 144K sh· +$2.1M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$5.4M· 6.4% of total· 0.0% port· 110K sh· +$2.4M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALAdded
Institutional Manager
$732K· 0.9% of total· 0.0% port· 15K sh· — QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$419K· 0.5% of total· 0.0% port· 9K sh· $-3.3M QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$415K· 0.5% of total· 0.0% port· 9K sh· $-2.0M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$227K· 0.3% of total· 0.0% port· 5K sh· +$95K QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$489· 0.0% of total· 0.0% port· 10 sh· — QoQ· Q2 2026
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