SIG Brokerage’s Costco COST Stock Holding History

SIG Brokerage’s Portfolio COST Stock Details COST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-2,130	Closed	-$1.97M	–	718
2025 Q3	$1.97M	Sell	2,130 -651	-23%	-$624K	0.06%	259
2025 Q2	$2.75M	Buy	+2,781	New	+$2.76M	0.07%	180

Other funds holding COST

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

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

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Norges Bank Oslo, Norway $935B AUM

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

SIG Brokerage's COST Position: Q4 2025 in Review

SIG Brokerage sold out of Costco (COST) in Q4 2025, closing a stake of 2,130 shares — an estimated $1.97M sold.

SIG Brokerage first reported a position in COST in Q2 2025 and held it in 2 quarters. The position peaked at $2.75M in Q2 2025. 4,113 funds tracked by Wall St. Rank hold COST as of Q4 2025.

SIG Brokerage reported no remaining Costco position as of Q4 2025 after selling out during the quarter.
SIG Brokerage sold 2,130 Costco shares in Q4 2025, an estimated $1.97M.
SIG Brokerage first reported a position in Costco in Q2 2025 and held it in 2 quarters.
SIG Brokerage's Costco position peaked at $2.75M in Q2 2025.
4,113 funds tracked by Wall St. Rank held Costco as of Q4 2025.

Based on SIG Brokerage's 13F filing for Q4 2025, filed 17 Feb 2026.