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Mizuho Securities’s Costco COST Stock Holding History

Mizuho Securities’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
2025
Q3 		– Sell
-130
Closed -$129K – 50
2025
Q2 		$129K Buy
+130
New +$129K 0.46% 30
2025
Q1 		– Sell
-150
Closed -$138K – 56
2024
Q4 		$138K Hold
150
– – 2.09% 18
2024
Q3 		$133K Sell
150
-90
-38% -$78.1K 0.33% 42
2024
Q2 		$204K Sell
240
-270
-53% -$211K 0.47% 29
2024
Q1 		$374K Buy
510
+430
+538% +$307K 2.06% 17
2023
Q4 		$52.8K Sell
80
-90
-53% -$53.3K 0.19% 49
2023
Q3 		$96K Buy
170
+10
+6% +$5.52K 0.45% 28
2023
Q2 		$86.1K Sell
160
-100
-38% -$50.6K 0.19% 47
2023
Q1 		$129K Buy
260
+200
+333% +$98.1K 0.4% 39
2022
Q4 		$27.4K Sell
60
-2,137
-97% -$1.04M 0.08% 66
2022
Q3 		$1.04M Buy
2,197
+1,939
+752% +$1.01M 0.35% 14
2022
Q2 		$146K Sell
258
-2,400
-90% -$1.22M 0.03% 48
2022
Q1 		$1.53M Buy
2,658
+2,442
+1,131% +$1.28M 0.33% 20
2021
Q4 		$123K Sell
216
-232
-52% -$119K 0.04% 47
2021
Q3 		$201K Buy
448
+429
+2,258% +$189K 0.06% 50
2021
Q2 		$7K Buy
19
+1
+6% +$378 ﹤0.01% 118
2021
Q1 		$6K Sell
18
-8
-31% -$2.79K ﹤0.01% 108
2020
Q4 		$10K Buy
+26
New +$9.71K ﹤0.01% 87
2020
Q1 		– Sell
-500
Closed -$147K – 63
2019
Q4 		$147K Hold
500
– – 0.08% 64
2019
Q3 		$144K Buy
+500
New +$141K 0.1% 59
2019
Q2 		– Sell
-500
Closed -$121K – 156
2019
Q1 		$121K Hold
500
– – 0.26% 57
2018
Q4 		$102K Buy
+500
New +$112K 0.01% 35

Other funds holding COST

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

Mizuho Securities's COST Position: Q3 2025 in Review

Mizuho Securities sold out of Costco (COST) in Q3 2025, closing a stake of 130 shares — an estimated $129K sold.

Mizuho Securities first reported a position in COST in Q4 2018 and held it in 22 quarters. The position peaked at $1.53M in Q1 2022. 3,932 funds tracked by Wall St. Rank hold COST as of Q3 2025.

  • Mizuho Securities reported no remaining Costco position as of Q3 2025 after selling out during the quarter.
  • Mizuho Securities sold 130 Costco shares in Q3 2025, an estimated $129K.
  • Mizuho Securities first reported a position in Costco in Q4 2018 and held it in 22 quarters.
  • Mizuho Securities's Costco position peaked at $1.53M in Q1 2022.
  • 3,932 funds tracked by Wall St. Rank held Costco as of Q3 2025.

Based on Mizuho Securities's 13F filing for Q3 2025, filed 30 Oct 2025.