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Mainsail Financial Group’s Costco COST Stock Holding History

Mainsail Financial Group’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 		$2.85M Buy
3,047
+22
+0.7% +$21.9K 0.97% 25
2026
Q1 		$3.01M Sell
3,025
-62
-2% -$60.4K 1.26% 25
2025
Q4 		$2.66M Buy
3,087
+26
+0.8% +$23.6K 1.11% 29
2025
Q3 		$2.83M Buy
3,061
+73
+2% +$70K 1.22% 25
2025
Q2 		$2.89M Sell
2,988
-170
-5% -$169K 1.35% 25
2025
Q1 		$2.99M Buy
3,158
+111
+4% +$108K 1.69% 21
2024
Q4 		$2.79M Buy
3,047
+9
+0.3% +$8.35K 1.62% 22
2024
Q3 		$2.76M Sell
3,038
-980
-24% -$851K 1.64% 21
2024
Q2 		$3.42M Buy
4,018
+791
+25% +$617K 2.01% 20
2024
Q1 		$2.36M Sell
3,227
-21
-0.6% -$15K 1.63% 22
2023
Q4 		$2.22M Buy
3,248
+1,201
+59% +$712K 1.72% 21
2023
Q3 		$1.17M Sell
2,047
-114
-5% -$62.9K 1.06% 25
2023
Q2 		$1.16M Sell
2,161
-104
-5% -$52.6K 1.09% 25
2023
Q1 		$1.15M Buy
2,265
+112
+5% +$54.9K 1.12% 24
2022
Q4 		$1.03M Buy
+2,153
New +$1.05M 1.05% 26

Other funds holding COST

Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
EA
Emerald Advisors Bellevue, Washington $796M AUM 2.51% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
Ninety One (UK)
Ninety One (UK) London, United Kingdom $44.7B AUM 17.24% 1-Year Est. Return
SP
Sarasin & Partners London, United Kingdom $8.54B AUM 9.6% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return
CRM
Cardano Risk Management Rotterdam, Netherlands $13B AUM 49.44% 1-Year Est. Return
SC
Steginsky Capital Port Washington, New York $666M AUM 34.57% 1-Year Est. Return
OIAM
OFI Invest Asset Management Paris, France $10B AUM 48.47% 1-Year Est. Return

Mainsail Financial Group's COST Position: Q2 2026 in Review

Mainsail Financial Group increased its Costco (COST) stake by 0.73% in Q2 2026, buying an estimated $21.9K and bringing the position to 3,047 shares worth $2.85M. The position accounts for 0.97% of the portfolio, ranked #25.

Mainsail Financial Group first reported a position in COST in Q4 2022 and has held it in 15 quarters since. The position peaked at $3.42M in Q2 2024. 1,016 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Mainsail Financial Group held 3,047 shares of Costco worth $2.85M as of Q2 2026.
  • Mainsail Financial Group bought 22 Costco shares in Q2 2026, an estimated $21.9K.
  • Costco made up 0.97% of Mainsail Financial Group's portfolio in Q2 2026, its #25 holding.
  • Mainsail Financial Group first reported a position in Costco in Q4 2022 and has held it in 15 quarters since.
  • Mainsail Financial Group's Costco position peaked at $3.42M in Q2 2024.
  • 1,016 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Mainsail Financial Group's 13F filing for Q2 2026, filed 15 Jul 2026.