McMillan Office’s Costco COST Stock Holding History

McMillan 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 Q2	$771K	Buy	824 +4	+0.5%	+$3.98K	0.09%	94
2026 Q1	$817K	Hold	820	–	–	0.1%	91
2025 Q4	$707K	Buy	+820	New	+$743K	0.09%	102

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

McMillan Office's COST Position: Q2 2026 in Review

McMillan Office increased its Costco (COST) stake by 0.49% in Q2 2026, buying an estimated $3.98K and bringing the position to 824 shares worth $771K. The position accounts for 0.09% of the portfolio, ranked #94.

McMillan Office first reported a position in COST in Q4 2025 and has held it in 3 quarters since. The position peaked at $817K in Q1 2026. 4,224 funds tracked by Wall St. Rank hold COST as of Q2 2026.

McMillan Office held 824 shares of Costco worth $771K as of Q2 2026.
McMillan Office bought 4 Costco shares in Q2 2026, an estimated $3.98K.
Costco made up 0.09% of McMillan Office's portfolio in Q2 2026, its #94 holding.
McMillan Office first reported a position in Costco in Q4 2025 and has held it in 3 quarters since.
McMillan Office's Costco position peaked at $817K in Q1 2026.
4,224 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on McMillan Office's 13F filing for Q2 2026, filed 13 Aug 2026.