Winthrop Capital Management’s Costco COST Stock Holding History

Winthrop Capital Management’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 Q2	$1.17M	Buy	1,254 +2	+0.2%	+$1.99K	0.28%	61
2026 Q1	$1.25M	Buy	1,252 +44	+4%	+$42.9K	0.32%	63
2025 Q4	$1.04M	Sell	1,208 -166	-12%	-$150K	0.24%	67
2025 Q3	$1.27M	Buy	1,374 +81	+6%	+$77.6K	0.31%	58
2025 Q2	$1.28M	Sell	1,293 -181	-12%	-$180K	0.32%	62
2025 Q1	$1.39M	Sell	1,474 -155	-10%	-$151K	0.38%	56
2024 Q4	$1.5M	Buy	1,629 +193	+13%	+$179K	0.4%	55
2024 Q3	$1.27M	Sell	1,436 -104	-7%	-$90.3K	0.61%	31
2024 Q2	$1.31M	Buy	1,540 +10	+0.7%	+$7.8K	0.65%	29
2024 Q1	$1.12M	Buy	1,530 +13	+0.9%	+$9.28K	0.52%	36
2023 Q4	$1M	Buy	+1,517	New	+$899K	0.33%	68

Other funds holding COST

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Winthrop Capital Management's COST Position: Q2 2026 in Review

Winthrop Capital Management increased its Costco (COST) stake by 0.16% in Q2 2026, buying an estimated $1.99K and bringing the position to 1,254 shares worth $1.17M. The position accounts for 0.28% of the portfolio, ranked #61.

Winthrop Capital Management first reported a position in COST in Q4 2023 and has held it in 11 quarters since. The position peaked at $1.5M in Q4 2024. 4,254 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Winthrop Capital Management held 1,254 shares of Costco worth $1.17M as of Q2 2026.
Winthrop Capital Management bought 2 Costco shares in Q2 2026, an estimated $1.99K.
Costco made up 0.28% of Winthrop Capital Management's portfolio in Q2 2026, its #61 holding.
Winthrop Capital Management first reported a position in Costco in Q4 2023 and has held it in 11 quarters since.
Winthrop Capital Management's Costco position peaked at $1.5M in Q4 2024.
4,254 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Winthrop Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.