MAS Advisors’s Costco COST Stock Holding History

MAS Advisors’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 Q3	$485K	Hold	524	–	–	0.77%	29
2025 Q2	$519K	Hold	524	–	–	0.85%	26
2025 Q1	$496K	Sell	524 -37	-7%	-$36.1K	0.76%	26
2024 Q4	$514K	Hold	561	–	–	0.86%	32
2024 Q3	$497K	Buy	561 +44	+9%	+$38.2K	1.06%	33
2024 Q2	$439K	Hold	517	–	–	1.05%	36
2024 Q1	$379K	Buy	517 +2	+0.4%	+$1.43K	0.44%	50
2023 Q4	$340K	Hold	515	–	–	0.44%	47
2023 Q3	$291K	Hold	515	–	–	0.42%	46
2023 Q2	$277K	Buy	515 +2	+0.4%	+$1.01K	0.39%	46
2023 Q1	$255K	Sell	513 -99	-16%	-$48.6K	0.25%	68
2022 Q4	$279K	Hold	612	–	–	0.26%	68
2022 Q3	$289K	Sell	612 -13	-2%	-$6.76K	0.19%	73
2022 Q2	$299K	Sell	625 -2	-0.3%	-$1.01K	0.27%	61
2022 Q1	$361K	Sell	627 -14	-2%	-$7.35K	0.28%	62
2021 Q4	$361K	Buy	+641	New	+$328K	0.26%	63

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

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

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

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

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

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

Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

MAS Advisors's COST Position: Q3 2025 in Review

MAS Advisors held its Costco (COST) position steady in Q3 2025 at 524 shares worth $485K. The position accounts for 0.77% of the portfolio, ranked #29.

MAS Advisors first reported a position in COST in Q4 2021 and has held it in 16 quarters since. The position peaked at $519K in Q2 2025. 3,933 funds tracked by Wall St. Rank hold COST as of Q3 2025.

MAS Advisors held 524 shares of Costco worth $485K as of Q3 2025.
MAS Advisors left its Costco share count unchanged in Q3 2025.
Costco made up 0.77% of MAS Advisors's portfolio in Q3 2025, its #29 holding.
MAS Advisors first reported a position in Costco in Q4 2021 and has held it in 16 quarters since.
MAS Advisors's Costco position peaked at $519K in Q2 2025.
3,933 funds tracked by Wall St. Rank held Costco as of Q3 2025.

Based on MAS Advisors's 13F filing for Q3 2025, filed 28 Oct 2025.