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 Q3	$12.8K	Sell	1,487 -12,977	-90%	-$66.1K	﹤0.01%	11376
2026 Q2	$53.4K	Buy	+14,464	New	+$84K	﹤0.01%	10906
2025 Q3	–	Sell	-1,461	Closed	-$12.3K	–	10880
2025 Q2	$12.3K	Buy	+1,461	New	+$12.4K	﹤0.01%	9396
2023 Q4	–	Sell	-1,330	Closed	-$41.8K	–	9245
2023 Q3	$41.8K	Buy	+1,330	New	+$45.7K	﹤0.01%	8189
2023 Q1	–	Sell	-509	Closed	-$46.4K	–	9144
2022 Q4	$46.4K	Buy	+509	New	+$60.7K	﹤0.01%	8390

Other funds holding COSM

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM

BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $463B AUM

Citigroup New York $308B AUM 40.94% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $375B AUM 21.05% 1-Year Est. Return

State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

StoneX Group New York $2.75B AUM 24.13% 1-Year Est. Return

Commonwealth Equity Services Waltham, Massachusetts $77B AUM 19.24% 1-Year Est. Return

Jane Street's COSM Position: Q3 2026 in Review

Jane Street reduced its Cosmos Holdings (COSM) stake by 90% in Q3 2026, selling an estimated $66.1K and leaving 1,487 shares worth $12.8K. The position accounts for ﹤0.01% of the portfolio, ranked #11376.

Jane Street first reported a position in COSM in Q4 2022 and has held it in 5 quarters since. The position peaked at $53.4K in Q2 2026. 20 funds tracked by Wall St. Rank hold COSM as of Q3 2026.

Jane Street held 1,487 shares of Cosmos Holdings worth $12.8K as of Q3 2026.
Jane Street sold 12,977 Cosmos Holdings shares in Q3 2026, an estimated $66.1K.
Cosmos Holdings made up ﹤0.01% of Jane Street's portfolio in Q3 2026, its #11376 holding.
Jane Street first reported a position in Cosmos Holdings in Q4 2022 and has held it in 5 quarters since.
Jane Street's Cosmos Holdings position peaked at $53.4K in Q2 2026.
20 funds tracked by Wall St. Rank held Cosmos Holdings as of Q3 2026.

Based on Jane Street's 13F filing for Q3 2026, filed 12 Nov 2026.