Pioneer Family Office’s Costco COST Stock Holding History

Pioneer 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 Q2	$159K	Hold	170	–	–	0.08%	40
2026 Q1	$169K	Hold	170	–	–	0.11%	36
2025 Q4	$147K	Buy	+170	New	+$154K	0.1%	42

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

Pioneer Family Office's COST Position: Q2 2026 in Review

Pioneer Family Office held its Costco (COST) position steady in Q2 2026 at 170 shares worth $159K. The position accounts for 0.08% of the portfolio, ranked #40.

Pioneer Family Office first reported a position in COST in Q4 2025 and has held it in 3 quarters since. The position peaked at $169K in Q1 2026. 4,210 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Pioneer Family Office held 170 shares of Costco worth $159K as of Q2 2026.
Pioneer Family Office left its Costco share count unchanged in Q2 2026.
Costco made up 0.08% of Pioneer Family Office's portfolio in Q2 2026, its #40 holding.
Pioneer Family Office first reported a position in Costco in Q4 2025 and has held it in 3 quarters since.
Pioneer Family Office's Costco position peaked at $169K in Q1 2026.
4,210 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Pioneer Family Office's 13F filing for Q2 2026, filed 28 Jul 2026.