TIA
COST icon

Traphagen Investment Advisors’s Costco COST Stock Holding History

Traphagen Investment Advisors’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 		$1.77M Sell
1,889
-4
-0.2% -$3.98K 0.13% 64
2026
Q1 		$1.89M Buy
1,893
+59
+3% +$57.5K 0.15% 56
2025
Q4 		$1.58M Buy
1,834
+25
+1% +$22.7K 0.13% 62
2025
Q3 		$1.67M Sell
1,809
-22
-1% -$21.1K 0.14% 53
2025
Q2 		$1.81M Sell
1,831
-94
-5% -$93.4K 0.17% 47
2025
Q1 		$1.82M Buy
1,925
+381
+25% +$371K 0.19% 47
2024
Q4 		$1.42M Buy
1,544
+25
+2% +$23.2K 0.14% 52
2024
Q3 		$1.35M Sell
1,519
-91
-6% -$79K 0.14% 55
2024
Q2 		$1.37M Sell
1,610
-35
-2% -$27.3K 0.15% 55
2024
Q1 		$1.21M Buy
1,645
+168
+11% +$120K 0.13% 60
2023
Q4 		$975K Buy
1,477
+70
+5% +$41.5K 0.11% 59
2023
Q3 		$795K Buy
1,407
+800
+132% +$442K 0.1% 63
2023
Q2 		$327K Sell
607
-76
-11% -$38.5K 0.04% 114
2023
Q1 		$340K Buy
683
+42
+7% +$20.6K 0.05% 112
2022
Q4 		$293K Buy
641
+1
+0.2% +$489 0.05% 118
2022
Q3 		$302K Sell
640
-54
-8% -$28.1K 0.06% 98
2022
Q2 		$333K Buy
694
+86
+14% +$43.6K 0.06% 98
2022
Q1 		$350K Buy
608
+60
+11% +$31.5K 0.06% 96
2021
Q4 		$311K Buy
+548
New +$281K 0.05% 112

Other funds holding COST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Traphagen Investment Advisors's COST Position: Q2 2026 in Review

Traphagen Investment Advisors reduced its Costco (COST) stake by 0.21% in Q2 2026, selling an estimated $3.98K and leaving 1,889 shares worth $1.77M. The position accounts for 0.13% of the portfolio, ranked #64.

Traphagen Investment Advisors first reported a position in COST in Q4 2021 and has held it in 19 quarters since. The position peaked at $1.89M in Q1 2026. 4,260 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Traphagen Investment Advisors held 1,889 shares of Costco worth $1.77M as of Q2 2026.
  • Traphagen Investment Advisors sold 4 Costco shares in Q2 2026, an estimated $3.98K.
  • Costco made up 0.13% of Traphagen Investment Advisors's portfolio in Q2 2026, its #64 holding.
  • Traphagen Investment Advisors first reported a position in Costco in Q4 2021 and has held it in 19 quarters since.
  • Traphagen Investment Advisors's Costco position peaked at $1.89M in Q1 2026.
  • 4,260 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Traphagen Investment Advisors's 13F filing for Q2 2026, filed 16 Jul 2026.