Jane Street’s CoastalSouth Bancshares COSO Stock Holding History

Jane Street’s Portfolio COSO Stock Details COSO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-12,890	Closed	-$300K	–	13512
2025 Q4	$300K	Buy	+12,890	New	+$287K	﹤0.01%	8844

Other funds holding COSO

PFPGI

Patriot Financial Partners GP II Radnor, Pennsylvania $388M AUM

Fourthstone LLC St Louis, Missouri $590M AUM 29.58% 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

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

BCP

Berkeley Capital Partners Milton, Georgia $431M AUM 17.43% 1-Year Est. Return

MCA

Mendon Capital Advisors Key Largo, Florida $258M AUM 21.23% 1-Year Est. Return

NRCM

North Reef Capital Management Laguna Beach, California $2.91B AUM 11.03% 1-Year Est. Return

CRC

Curi RMB Capital Chicago, Illinois $5.62B AUM 18.93% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

Jane Street's COSO Position: Q1 2026 in Review

Jane Street sold out of CoastalSouth Bancshares (COSO) in Q1 2026, closing a stake of 12,890 shares — an estimated $300K sold.

Jane Street first reported a position in COSO in Q4 2025 and held it in 1 quarter. The position peaked at $300K in Q4 2025. 83 funds tracked by Wall St. Rank hold COSO as of Q1 2026.

Jane Street reported no remaining CoastalSouth Bancshares position as of Q1 2026 after selling out during the quarter.
Jane Street sold 12,890 CoastalSouth Bancshares shares in Q1 2026, an estimated $300K.
Jane Street first reported a position in CoastalSouth Bancshares in Q4 2025 and held it in 1 quarter.
Jane Street's CoastalSouth Bancshares position peaked at $300K in Q4 2025.
83 funds tracked by Wall St. Rank held CoastalSouth Bancshares as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.