Jane Street’s California Water Service CWT Stock Holding History

Jane Street’s Portfolio CWT Stock Details CWT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-5,100	Closed	-$234K	–	11326
2025 Q3	$234K	Buy	+5,100	New	+$235K	﹤0.01%	9375

Other funds holding CWT

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Amundi Paris, France $416B AUM 44.19% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AIP

Atlas Infrastructure Partners London, United Kingdom $3.3B AUM 16.21% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Jane Street's CWT Position: Q2 2026 in Review

Jane Street sold out of California Water Service (CWT) in Q2 2026, closing a stake of 123,278 shares — an estimated $5.59M sold.

Jane Street first reported a position in CWT in Q2 2013 and held it in 19 quarters. The position peaked at $6.37M in Q2 2025. 345 funds tracked by Wall St. Rank hold CWT as of Q2 2026.

Jane Street reported no remaining California Water Service position as of Q2 2026 after selling out during the quarter.
Jane Street sold 123,278 California Water Service shares in Q2 2026, an estimated $5.59M.
Jane Street first reported a position in California Water Service in Q2 2013 and held it in 19 quarters.
Jane Street's California Water Service position peaked at $6.37M in Q2 2025.
345 funds tracked by Wall St. Rank held California Water Service as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.