Jane Street’s Cosmos Holdings COSM Stock Holding History

Jane Street’s Portfolio COSM Stock Details COSM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-13,100	Closed	-$6.52K	–	11769
2025 Q4	$6.52K	Buy	+13,100	New	+$9.75K	﹤0.01%	10885

Other funds holding COSM

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VFT

Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

XTX Topco George Town, Cayman Islands $5.75B AUM 30.56% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

Jane Street's COSM Position: Q3 2025 in Review

Jane Street sold out of Cosmos Holdings (COSM) in Q3 2025, closing a stake of 29,218 shares — an estimated $12.3K sold.

Jane Street first reported a position in COSM in Q4 2022 and held it in 3 quarters. The position peaked at $46.4K in Q4 2022. 22 funds tracked by Wall St. Rank hold COSM as of Q3 2025.

Jane Street reported no remaining Cosmos Holdings position as of Q3 2025 after selling out during the quarter.
Jane Street sold 29,218 Cosmos Holdings shares in Q3 2025, an estimated $12.3K.
Jane Street first reported a position in Cosmos Holdings in Q4 2022 and held it in 3 quarters.
Jane Street's Cosmos Holdings position peaked at $46.4K in Q4 2022.
22 funds tracked by Wall St. Rank held Cosmos Holdings as of Q3 2025.

Based on Jane Street's 13F filing for Q3 2025, filed 14 Nov 2025.