George Kaiser Family Foundation’s Costco COST Stock Holding History

George Kaiser Family Foundation’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	$419K	Hold	420	–	–	0.05%	43
2025 Q4	$362K	Hold	420	–	–	0.05%	61
2025 Q3	$389K	Hold	420	–	–	0.05%	59
2025 Q2	$416K	Buy	420 +129	+44%	+$128K	0.06%	54
2025 Q1	$275K	Buy	+291	New	+$284K	0.04%	43
2022 Q2	–	Sell	-632	Closed	-$364K	–	48
2022 Q1	$364K	Hold	632	–	–	0.06%	45
2021 Q4	$359K	Hold	632	–	–	0.05%	42
2021 Q3	$284K	Hold	632	–	–	0.05%	45
2021 Q2	$250K	Hold	632	–	–	0.04%	47
2021 Q1	$223K	Hold	632	–	–	0.05%	43
2020 Q4	$238K	Hold	632	–	–	0.06%	42
2020 Q3	$224K	Buy	+632	New	+$212K	0.08%	43
2020 Q1	–	Sell	-4,434	Closed	-$1.3M	–	27
2019 Q4	$1.3M	Hold	4,434	–	–	0.4%	19
2019 Q3	$1.28M	Hold	4,434	–	–	0.45%	19
2019 Q2	$1.17M	Hold	4,434	–	–	0.41%	19
2019 Q1	$1.07M	Hold	4,434	–	–	0.37%	19
2018 Q4	$903K	Hold	4,434	–	–	0.31%	19
2018 Q3	$1.04M	Hold	4,434	–	–	0.33%	16
2018 Q2	$927K	Hold	4,434	–	–	0.3%	15
2018 Q1	$835K	Hold	4,434	–	–	0.26%	16
2017 Q4	$825K	Hold	4,434	–	–	0.27%	16
2017 Q3	$728K	Hold	4,434	–	–	0.33%	17
2017 Q2	$709K	Buy	+4,434	New	+$764K	0.33%	15

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

George Kaiser Family Foundation's COST Position: Q1 2026 in Review

George Kaiser Family Foundation held its Costco (COST) position steady in Q1 2026 at 420 shares worth $419K. The position accounts for 0.05% of the portfolio, ranked #43.

George Kaiser Family Foundation first reported a position in COST in Q2 2017 and has held it in 23 quarters since. The position peaked at $1.3M in Q4 2019. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

George Kaiser Family Foundation held 420 shares of Costco worth $419K as of Q1 2026.
George Kaiser Family Foundation left its Costco share count unchanged in Q1 2026.
Costco made up 0.05% of George Kaiser Family Foundation's portfolio in Q1 2026, its #43 holding.
George Kaiser Family Foundation first reported a position in Costco in Q2 2017 and has held it in 23 quarters since.
George Kaiser Family Foundation's Costco position peaked at $1.3M in Q4 2019.
4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on George Kaiser Family Foundation's 13F filing for Q1 2026, filed 14 May 2026.