Parthenon LLC’s Costco COST Stock Holding History

Parthenon LLC’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	$1.2M	Sell	1,278 -25	-2%	-$24.9K	0.12%	73
2026 Q1	$1.3M	Hold	1,303	–	–	0.15%	67
2025 Q4	$1.12M	Hold	1,303	–	–	0.12%	76
2025 Q3	$1.21M	Buy	1,303 +50	+4%	+$47.9K	0.13%	77
2025 Q2	$1.24M	Buy	1,253 +25	+2%	+$24.8K	0.14%	76
2025 Q1	$1.16M	Hold	1,228	–	–	0.14%	74
2024 Q4	$1.13M	Hold	1,228	–	–	0.14%	74
2024 Q3	$1.09M	Hold	1,228	–	–	0.13%	74
2024 Q2	$1.04M	Hold	1,228	–	–	0.13%	73
2024 Q1	$900K	Sell	1,228 -60	-5%	-$42.8K	0.11%	77
2023 Q4	$850K	Buy	1,288 +90	+8%	+$53.3K	0.12%	77
2023 Q3	$677K	Hold	1,198	–	–	0.1%	80
2023 Q2	$645K	Hold	1,198	–	–	0.09%	82
2023 Q1	$595K	Hold	1,198	–	–	0.09%	84
2022 Q4	$547K	Hold	1,198	–	–	0.09%	85
2022 Q3	$566K	Hold	1,198	–	–	0.1%	81
2022 Q2	$574K	Hold	1,198	–	–	0.1%	81
2022 Q1	$690K	Hold	1,198	–	–	0.1%	80
2021 Q4	$680K	Hold	1,198	–	–	0.1%	81
2021 Q3	$538K	Hold	1,198	–	–	0.08%	84
2021 Q2	$474K	Hold	1,198	–	–	0.07%	88
2021 Q1	$422K	Sell	1,198 -108	-8%	-$37.6K	0.07%	89
2020 Q4	$492K	Buy	1,306 +208	+19%	+$77.7K	0.08%	86
2020 Q3	$390K	Hold	1,098	–	–	0.08%	86
2020 Q2	$333K	Hold	1,098	–	–	0.07%	86
2020 Q1	$313K	Hold	1,098	–	–	0.07%	87
2019 Q4	$323K	Hold	1,098	–	–	0.06%	95
2019 Q3	$316K	Sell	1,098 -51	-4%	-$14.4K	0.07%	93
2019 Q2	$304K	Hold	1,149	–	–	0.07%	93
2019 Q1	$278K	Hold	1,149	–	–	0.06%	95
2018 Q4	$234K	Buy	1,149 +80	+7%	+$17.9K	0.06%	97
2018 Q3	$251K	Buy	1,069 +69	+7%	+$15.5K	0.06%	101
2018 Q2	$209K	Buy	+1,000	New	+$198K	0.05%	104
2017 Q1	–	Sell	-1,900	Closed	-$304K	–	110
2016 Q4	$304K	Hold	1,900	–	–	0.07%	94
2016 Q3	$290K	Hold	1,900	–	–	0.07%	94
2016 Q2	$298K	Hold	1,900	–	–	0.07%	94
2016 Q1	$299K	Hold	1,900	–	–	0.08%	92
2015 Q4	$307K	Hold	1,900	–	–	0.08%	89
2015 Q3	$275K	Hold	1,900	–	–	0.08%	90
2015 Q2	$257K	Hold	1,900	–	–	0.07%	94
2015 Q1	$288K	Hold	1,900	–	–	0.08%	87
2014 Q4	$269K	Hold	1,900	–	–	0.07%	86
2014 Q3	$238K	Hold	1,900	–	–	0.07%	87
2014 Q2	$219K	Hold	1,900	–	–	0.06%	84
2014 Q1	$212K	Hold	1,900	–	–	0.06%	87
2013 Q4	$226K	Hold	1,900	–	–	0.07%	83
2013 Q3	$219K	Hold	1,900	–	–	0.07%	80
2013 Q2	$210K	Buy	+1,900	New	+$208K	0.07%	81

Other funds holding COST

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

Parnassus Investments San Francisco, California $37.4B AUM 35.42% 1-Year Est. Return

Emerald Advisors Bellevue, Washington $796M AUM 2.51% 1-Year Est. Return

New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return

PTC

Provident Trust Company Waukesha, Wisconsin $4.77B AUM 29.31% 1-Year Est. Return

Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

Commonwealth Equity Services Waltham, Massachusetts $79.5B AUM 27.1% 1-Year Est. Return

Parthenon LLC's COST Position: Q2 2026 in Review

Parthenon LLC reduced its Costco (COST) stake by 1.9% in Q2 2026, selling an estimated $24.9K and leaving 1,278 shares worth $1.2M. The position accounts for 0.12% of the portfolio, ranked #73.

Parthenon LLC first reported a position in COST in Q2 2013 and has held it in 48 quarters since. The position peaked at $1.3M in Q1 2026. 2,087 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Parthenon LLC held 1,278 shares of Costco worth $1.2M as of Q2 2026.
Parthenon LLC sold 25 Costco shares in Q2 2026, an estimated $24.9K.
Costco made up 0.12% of Parthenon LLC's portfolio in Q2 2026, its #73 holding.
Parthenon LLC first reported a position in Costco in Q2 2013 and has held it in 48 quarters since.
Parthenon LLC's Costco position peaked at $1.3M in Q1 2026.
2,087 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Parthenon LLC's 13F filing for Q2 2026, filed 23 Jul 2026.