Cohen Klingenstein’s Costco COST Stock Holding History

Cohen Klingenstein’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 Q3	$5.83M	Hold	6,400	–	–	0.17%	63
2026 Q2	$5.99M	Hold	6,400	–	–	0.17%	64
2026 Q1	$6.38M	Hold	6,400	–	–	0.21%	57
2025 Q4	$5.52M	Hold	6,400	–	–	0.17%	64
2025 Q3	$5.92M	Hold	6,400	–	–	0.19%	64
2025 Q2	$6.34M	Hold	6,400	–	–	0.21%	59
2025 Q1	$6.05M	Hold	6,400	–	–	0.22%	58
2024 Q4	$5.86M	Sell	6,400 -3,900	-38%	-$3.62M	0.2%	59
2024 Q3	$9.13M	Hold	10,300	–	–	0.32%	52
2024 Q2	$8.75M	Hold	10,300	–	–	0.32%	50
2024 Q1	$7.55M	Hold	10,300	–	–	0.28%	56
2023 Q4	$6.8M	Hold	10,300	–	–	0.28%	57
2023 Q3	$5.82M	Hold	10,300	–	–	0.26%	61
2023 Q2	$5.55M	Hold	10,300	–	–	0.24%	67
2023 Q1	$5.12M	Hold	10,300	–	–	0.24%	71
2022 Q4	$4.7M	Hold	10,300	–	–	0.24%	75
2022 Q3	$4.86M	Hold	10,300	–	–	0.26%	69
2022 Q2	$4.94M	Hold	10,300	–	–	0.25%	73
2022 Q1	$5.93M	Hold	10,300	–	–	0.25%	71
2021 Q4	$5.85M	Hold	10,300	–	–	0.23%	75
2021 Q3	$4.63M	Hold	10,300	–	–	0.2%	84
2021 Q2	$4.08M	Hold	10,300	–	–	0.18%	96
2021 Q1	$3.63M	Hold	10,300	–	–	0.17%	98
2020 Q4	$3.88M	Hold	10,300	–	–	0.19%	85
2020 Q3	$3.66M	Hold	10,300	–	–	0.21%	85
2020 Q2	$3.12M	Hold	10,300	–	–	0.19%	89
2020 Q1	$2.94M	Hold	10,300	–	–	0.22%	87
2019 Q4	$3.03M	Hold	10,300	–	–	0.18%	100
2019 Q3	$2.97M	Buy	10,300 +3,900	+61%	+$1.1M	0.19%	99
2019 Q2	$1.69M	Buy	+6,400	New	+$1.6M	0.12%	118

Other funds holding COST

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return

Everett Harris & Co Los Angeles, California $8.46B AUM 13.48% 1-Year Est. Return

Swedbank Stockholm, Sweden $118B AUM 40.52% 1-Year Est. Return

Emerald Advisors Bellevue, Washington $781M AUM 4.78% 1-Year Est. Return

Parnassus Investments San Francisco, California $33.8B AUM 31.08% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $103B AUM 40.17% 1-Year Est. Return

ProShare Advisors Bethesda, Maryland $69.5B AUM 31.38% 1-Year Est. Return

Bank Julius Baer & Co Zurich, Switzerland $39.3B AUM 31.81% 1-Year Est. Return

Provident Trust Company Waukesha, Wisconsin $3.22B AUM 13.63% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $52.9B AUM 36.03% 1-Year Est. Return

Cohen Klingenstein's COST Position: Q3 2026 in Review

Cohen Klingenstein held its Costco (COST) position steady in Q3 2026 at 6,400 shares worth $5.83M. The position accounts for 0.17% of the portfolio, ranked #63.

Cohen Klingenstein first reported a position in COST in Q2 2019 and has held it in 30 quarters since. The position peaked at $9.13M in Q3 2024. 1,859 funds tracked by Wall St. Rank hold COST as of Q3 2026.

Cohen Klingenstein held 6,400 shares of Costco worth $5.83M as of Q3 2026.
Cohen Klingenstein left its Costco share count unchanged in Q3 2026.
Costco made up 0.17% of Cohen Klingenstein's portfolio in Q3 2026, its #63 holding.
Cohen Klingenstein first reported a position in Costco in Q2 2019 and has held it in 30 quarters since.
Cohen Klingenstein's Costco position peaked at $9.13M in Q3 2024.
1,859 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Cohen Klingenstein's 13F filing for Q3 2026, filed 15 Oct 2026.