Platform Technology Partners
COST icon

Platform Technology Partners’s Costco COST Stock Holding History

Platform Technology Partners’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 		$3.54M Buy
3,891
+70
+2% +$65.3K 0.56% 36
2026
Q2 		$3.57M Buy
3,821
+5
+0.1% +$4.98K 0.58% 39
2026
Q1 		$3.8M Buy
3,816
+268
+8% +$261K 0.73% 30
2025
Q4 		$3.06M Sell
3,548
-75
-2% -$68K 0.65% 35
2025
Q3 		$3.35M Sell
3,623
-38
-1% -$36.4K 0.8% 28
2025
Q2 		$3.62M Sell
3,661
-3
-0.1% -$2.98K 0.95% 21
2025
Q1 		$3.47M Sell
3,664
-40
-1% -$39K 1.01% 21
2024
Q4 		$3.39M Sell
3,704
-42
-1% -$39K 1.03% 18
2024
Q3 		$3.32M Sell
3,746
-10
-0.3% -$8.68K 1.04% 19
2024
Q2 		$3.19M Buy
+3,756
New +$2.93M 1.1% 16
2023
Q4 		$2.64M Sell
3,656
-23
-0.6% -$13.6K 1.03% 20
2023
Q3 		$2.08M Buy
3,679
+434
+13% +$240K 0.97% 23
2023
Q2 		$1.72M Buy
3,245
+29
+0.9% +$14.7K 0.81% 34
2023
Q1 		$1.6M Buy
3,216
+13
+0.4% +$6.38K 0.79% 35
2022
Q4 		$1.46M Buy
3,203
+193
+6% +$94.3K 0.76% 36
2022
Q3 		$1.42M Sell
3,010
-34
-1% -$17.7K 0.81% 33
2022
Q2 		$1.46M Buy
3,044
+298
+11% +$151K 0.8% 35
2022
Q1 		$1.58M Sell
2,746
-12
-0.4% -$6.3K 0.76% 36
2021
Q4 		$1.57M Sell
2,758
-25
-0.9% -$12.8K 0.69% 34
2021
Q3 		$1.25M Buy
2,783
+25
+0.9% +$11K 0.57% 45
2021
Q2 		$1.09M Buy
+2,758
New +$1.04M 0.45% 58
2020
Q4 		$842K Buy
2,234
+119
+6% +$44.5K 0.41% 66
2020
Q3 		$751K Buy
2,115
+258
+14% +$86.7K 0.46% 58
2020
Q2 		$563K Buy
1,857
+409
+28% +$124K 0.4% 76
2020
Q1 		$413K Buy
1,448
+149
+11% +$45.2K 0.38% 80
2019
Q4 		$382K Buy
+1,299
New +$386K 0.29% 107

Other funds holding COST

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return
Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $194B AUM 32.2% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $468B AUM 17.69% 1-Year Est. Return

Platform Technology Partners's COST Position: Q3 2026 in Review

Platform Technology Partners increased its Costco (COST) stake by 1.8% in Q3 2026, buying an estimated $65.3K and bringing the position to 3,891 shares worth $3.54M. The position accounts for 0.56% of the portfolio, ranked #36.

Platform Technology Partners first reported a position in COST in Q4 2019 and has held it in 26 quarters since. The position peaked at $3.8M in Q1 2026. 2,803 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • Platform Technology Partners held 3,891 shares of Costco worth $3.54M as of Q3 2026.
  • Platform Technology Partners bought 70 Costco shares in Q3 2026, an estimated $65.3K.
  • Costco made up 0.56% of Platform Technology Partners's portfolio in Q3 2026, its #36 holding.
  • Platform Technology Partners first reported a position in Costco in Q4 2019 and has held it in 26 quarters since.
  • Platform Technology Partners's Costco position peaked at $3.8M in Q1 2026.
  • 2,803 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Platform Technology Partners's 13F filing for Q3 2026, filed 2 Nov 2026.