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Triasima Portfolio Management’s Costco COST Stock Holding History

Triasima Portfolio Management’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 		$311K Sell
332
-140
-30% -$139K 0.04% 121
2026
Q1 		$470K Sell
472
-3
-0.6% -$2.92K 0.07% 121
2025
Q4 		$410K Sell
475
-4,314
-90% -$3.91M 0.06% 124
2025
Q3 		$4.43M Buy
4,789
+984
+26% +$943K 0.67% 48
2025
Q2 		$3.77M Buy
3,805
+416
+12% +$413K 0.69% 54
2025
Q1 		$3.21M Sell
3,389
-149
-4% -$145K 0.63% 56
2024
Q4 		$3.24M Buy
+3,538
New +$3.28M 0.63% 52
2024
Q3 		– Sell
-5,165
Closed -$4.39M – 96
2024
Q2 		$4.39M Buy
5,165
+1,979
+62% +$1.54M 0.4% 46
2024
Q1 		$2.33M Sell
3,186
-371
-10% -$265K 0.2% 82
2023
Q4 		$2.35M Buy
3,557
+650
+22% +$385K 0.19% 73
2023
Q3 		$1.64M Sell
2,907
-13
-0.4% -$7.18K 0.15% 83
2023
Q2 		$2.08M Sell
2,920
-3,294
-53% -$1.67M 0.13% 78
2023
Q1 		$3.09M Sell
6,214
-3,700
-37% -$1.81M 0.26% 61
2022
Q4 		$4.53M Sell
9,914
-1,812
-15% -$885K 0.35% 52
2022
Q3 		$5.54M Sell
11,726
-203
-2% -$106K 0.45% 40
2022
Q2 		$5.72M Buy
11,929
+1,472
+14% +$747K 0.4% 39
2022
Q1 		$6.02M Buy
10,457
+7,380
+240% +$3.87M 0.29% 43
2021
Q4 		$1.75M Buy
3,077
+17
+0.6% +$8.71K 0.08% 99
2021
Q3 		$1.38M Buy
3,060
+300
+11% +$132K 0.07% 104
2021
Q2 		$1.09M Buy
2,760
+95
+4% +$35.9K 0.05% 117
2021
Q1 		$939K Sell
2,665
-17,030
-86% -$5.93M 0.05% 127
2020
Q4 		$7.42M Buy
+19,695
New +$7.36M 0.42% 38

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 $3.37T AUM 44.26% 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

Triasima Portfolio Management's COST Position: Q2 2026 in Review

Triasima Portfolio Management reduced its Costco (COST) stake by 30% in Q2 2026, selling an estimated $139K and leaving 332 shares worth $311K. The position accounts for 0.04% of the portfolio, ranked #121.

Triasima Portfolio Management first reported a position in COST in Q4 2020 and has held it in 22 quarters since. The position peaked at $7.42M in Q4 2020. 4,224 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Triasima Portfolio Management held 332 shares of Costco worth $311K as of Q2 2026.
  • Triasima Portfolio Management sold 140 Costco shares in Q2 2026, an estimated $139K.
  • Costco made up 0.04% of Triasima Portfolio Management's portfolio in Q2 2026, its #121 holding.
  • Triasima Portfolio Management first reported a position in Costco in Q4 2020 and has held it in 22 quarters since.
  • Triasima Portfolio Management's Costco position peaked at $7.42M in Q4 2020.
  • 4,224 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Triasima Portfolio Management's 13F filing for Q2 2026, filed 21 Jul 2026.