Callan Family Office’s Costco COST Stock Holding History

Callan Family Office’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
2026 Q1	$19.7M	Buy	19,722 +652	+3%	+$635K	0.45%	37
2025 Q4	$16.4M	Buy	19,070 +1,120	+6%	+$1.01M	0.35%	51
2025 Q3	$16.6M	Sell	17,950 -3,644	-17%	-$3.49M	0.53%	31
2025 Q2	$21.4M	Buy	21,594 +17,810	+471%	+$17.7M	0.67%	22
2025 Q1	$3.58M	Sell	3,784 -9,070	-71%	-$8.84M	0.27%	82
2024 Q4	$11.8M	Buy	12,854 +9,156	+248%	+$8.5M	0.75%	26
2024 Q3	$3.28M	Buy	3,698 +3,177	+610%	+$2.76M	0.55%	34
2024 Q2	$443K	Buy	+521	New	+$407K	0.09%	95
2024 Q1	–	Sell	-434	Closed	-$286K	–	93
2023 Q4	$286K	Buy	+434	New	+$257K	0.07%	80
2023 Q3	–	Sell	-996	Closed	-$536K	–	96
2023 Q2	$536K	Buy	996 +20	+2%	+$10.1K	0.14%	61
2023 Q1	$485K	Buy	976 +248	+34%	+$122K	0.12%	94
2022 Q4	$332K	Buy	+728	New	+$356K	0.11%	75

Other funds holding COST

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

DAM

Diamant Asset Management Ridgefield, Connecticut $137B AUM 18.02% 1-Year Est. Return

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

Callan Family Office's COST Position: Q1 2026 in Review

Callan Family Office increased its Costco (COST) stake by 3.4% in Q1 2026, buying an estimated $635K and bringing the position to 19,722 shares worth $19.7M. The position accounts for 0.45% of the portfolio, ranked #37.

Callan Family Office first reported a position in COST in Q4 2022 and has held it in 12 quarters since. The position peaked at $21.4M in Q2 2025. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

Callan Family Office held 19,722 shares of Costco worth $19.7M as of Q1 2026.
Callan Family Office bought 652 Costco shares in Q1 2026, an estimated $635K.
Costco made up 0.45% of Callan Family Office's portfolio in Q1 2026, its #37 holding.
Callan Family Office first reported a position in Costco in Q4 2022 and has held it in 12 quarters since.
Callan Family Office's Costco position peaked at $21.4M in Q2 2025.
4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Callan Family Office's 13F filing for Q1 2026, filed 13 May 2026.