Mathes Company’s Costco COST Stock Holding History

Mathes Company’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	$1.4M	Buy	1,404 +5	+0.4%	+$4.87K	0.51%	44
2025 Q4	$1.21M	Hold	1,399	–	–	0.43%	47
2025 Q3	$1.29M	Hold	1,399	–	–	0.46%	47
2025 Q2	$1.39M	Sell	1,399 -7	-0.5%	-$6.96K	0.51%	49
2025 Q1	$1.33M	Sell	1,406 -1,068	-43%	-$1.04M	0.54%	48
2024 Q4	$2.27M	Sell	2,474 -30	-1%	-$27.8K	0.83%	36
2024 Q3	$2.22M	Sell	2,504 -34	-1%	-$29.5K	0.78%	43
2024 Q2	$2.16M	Sell	2,538 -16	-0.6%	-$12.5K	0.78%	40
2024 Q1	$1.87M	Buy	2,554 +150	+6%	+$107K	0.7%	41
2023 Q4	$1.59M	Sell	2,404 -50	-2%	-$29.6K	0.65%	46
2023 Q3	$1.39M	Buy	2,454 +185	+8%	+$102K	0.64%	46
2023 Q2	$1.22M	Buy	+2,269	New	+$1.15M	0.53%	52
2022 Q4	$1.03M	Hold	2,265	–	–	0.52%	53
2022 Q3	$1.07M	Hold	2,265	–	–	0.6%	50
2022 Q2	$1.09M	Hold	2,265	–	–	0.53%	55
2022 Q1	$1.3M	Buy	2,265 +700	+45%	+$367K	0.51%	58
2021 Q4	$888K	Sell	1,565 -56	-3%	-$28.7K	0.3%	75
2021 Q3	$728K	Hold	1,621	–	–	0.27%	77
2021 Q2	$641K	Hold	1,621	–	–	0.23%	82
2021 Q1	$571K	Hold	1,621	–	–	0.22%	86
2020 Q4	$611K	Sell	1,621 -550	-25%	-$205K	0.25%	85
2020 Q3	$771K	Hold	2,171	–	–	0.36%	71
2020 Q2	$658K	Hold	2,171	–	–	0.33%	75
2020 Q1	$619K	Sell	2,171 -100	-4%	-$30.3K	0.41%	69
2019 Q4	$667K	Hold	2,271	–	–	0.31%	80
2019 Q3	$654K	Buy	2,271 +171	+8%	+$48.1K	0.34%	75
2019 Q2	$555K	Hold	2,100	–	–	0.29%	79
2019 Q1	$508K	Hold	2,100	–	–	0.26%	85
2018 Q4	$428K	Hold	2,100	–	–	0.27%	81
2018 Q3	$493K	Hold	2,100	–	–	0.23%	84
2018 Q2	$439K	Hold	2,100	–	–	0.21%	91
2018 Q1	$396K	Hold	2,100	–	–	0.18%	95
2017 Q4	$391K	Hold	2,100	–	–	0.18%	105
2017 Q3	$345K	Hold	2,100	–	–	0.16%	110
2017 Q2	$336K	Sell	2,100 -100	-5%	-$17.2K	0.16%	109
2017 Q1	$369K	Hold	2,200	–	–	0.2%	96
2016 Q4	$352K	Hold	2,200	–	–	0.19%	99
2016 Q3	$336K	Sell	2,200 -1,100	-33%	-$178K	0.19%	100
2016 Q2	$518K	Sell	3,300 -65	-2%	-$9.84K	0.3%	77
2016 Q1	$530K	Hold	3,365	–	–	0.32%	76
2015 Q4	$543K	Buy	3,365 +65	+2%	+$10.3K	0.31%	77
2015 Q3	$477K	Sell	3,300 -250	-7%	-$35.7K	0.31%	77
2015 Q2	$479K	Hold	3,550	–	–	0.26%	95
2015 Q1	$538K	Buy	3,550 +600	+20%	+$88K	0.28%	97
2014 Q4	$418K	Buy	2,950 +500	+20%	+$68K	0.22%	112
2014 Q3	$307K	Sell	2,450 -800	-25%	-$96.7K	0.15%	132
2014 Q2	$374K	Buy	3,250 +50	+2%	+$5.74K	0.18%	122
2014 Q1	$357K	Hold	3,200	–	–	0.19%	121
2013 Q4	$381K	Buy	3,200 +860	+37%	+$103K	0.2%	118
2013 Q3	$269K	Sell	2,340 -419	-15%	-$48.4K	0.26%	73
2013 Q2	$305K	Buy	+2,759	New	+$302K	0.33%	66

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

Mathes Company's COST Position: Q1 2026 in Review

Mathes Company increased its Costco (COST) stake by 0.36% in Q1 2026, buying an estimated $4.87K and bringing the position to 1,404 shares worth $1.4M. The position accounts for 0.51% of the portfolio, ranked #44.

Mathes Company first reported a position in COST in Q2 2013 and has held it in 51 quarters since. The position peaked at $2.27M in Q4 2024. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

Mathes Company held 1,404 shares of Costco worth $1.4M as of Q1 2026.
Mathes Company bought 5 Costco shares in Q1 2026, an estimated $4.87K.
Costco made up 0.51% of Mathes Company's portfolio in Q1 2026, its #44 holding.
Mathes Company first reported a position in Costco in Q2 2013 and has held it in 51 quarters since.
Mathes Company's Costco position peaked at $2.27M in Q4 2024.
4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Mathes Company's 13F filing for Q1 2026, filed 8 May 2026.