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Oak Grove Capital’s Costco COST Stock Holding History

Oak Grove Capital’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
Q1 		$19.5M Buy
19,573
+175
+0.9% +$171K 1.65% 12
2025
Q4 		$16.7M Buy
19,398
+200
+1% +$181K 1.98% 11
2025
Q3 		$17.8M Sell
19,198
-2,500
-12% -$2.4M 2.52% 10
2025
Q2 		$21.5M Buy
21,698
+8,568
+65% +$8.52M 3.52% 6
2025
Q1 		$12.4M Sell
13,130
-5,107
-28% -$4.98M 2.59% 13
2024
Q4 		$16.7M Sell
18,237
-21
-0.1% -$19.5K 2.49% 12
2024
Q3 		$16.2M Sell
18,258
-2,500
-12% -$2.17M 2.65% 11
2024
Q2 		$17.6M Sell
20,758
-2,784
-12% -$2.17M 3.21% 9
2024
Q1 		$17.2M Sell
23,542
-1,740
-7% -$1.24M 3.48% 9
2023
Q4 		$16.7M Sell
25,282
-310
-1% -$184K 4.44% 9
2023
Q3 		$14.5M Sell
25,592
-1,100
-4% -$607K 5.03% 6
2023
Q2 		$14.4M Sell
26,692
-6,712
-20% -$3.4M 4.92% 7
2023
Q1 		$16.6M Sell
33,404
-5,192
-13% -$2.55M 6.79% 5
2022
Q4 		$17.6M Sell
38,596
-3,150
-8% -$1.54M 8.85% 2
2022
Q3 		$19.7M Buy
41,746
+5,454
+15% +$2.84M 6.65% 4
2022
Q2 		$17.4M Buy
36,292
+1,702
+5% +$863K 5.66% 6
2022
Q1 		$19.9M Sell
34,590
-2,134
-6% -$1.12M 4.04% 7
2021
Q4 		$20.8M Sell
36,724
-4,312
-11% -$2.21M 3.62% 8
2021
Q3 		$18.4M Sell
41,036
-400
-1% -$176K 3.98% 6
2021
Q2 		$16.4M Buy
41,436
+2,475
+6% +$936K 3.67% 7
2021
Q1 		$13.7M Buy
38,961
+14,594
+60% +$5.08M 3.83% 7
2020
Q4 		$9.18M Sell
24,367
-294
-1% -$110K 3% 8
2020
Q3 		$8.76M Sell
24,661
-11,384
-32% -$3.83M 4.13% 6
2020
Q2 		$10.9M Buy
36,045
+21,958
+156% +$6.68M 6.59% 6
2020
Q1 		$4.02M Buy
14,087
+7,987
+131% +$2.42M 2.6% 13
2019
Q4 		$1.79M Buy
+6,100
New +$1.81M 0.7% 32
2018
Q2 		– Sell
-450
Closed -$85K – 162
2018
Q1 		$85K Sell
450
-6,975
-94% -$1.32M 0.09% 59
2017
Q4 		$1.38M Buy
+7,425
New +$1.28M 1.44% 19

Other funds holding COST

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
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
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
DAM
Diamant Asset Management Ridgefield, Connecticut $137B AUM 18.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Oak Grove Capital's COST Position: Q1 2026 in Review

Oak Grove Capital increased its Costco (COST) stake by 0.9% in Q1 2026, buying an estimated $171K and bringing the position to 19,573 shares worth $19.5M. The position accounts for 1.65% of the portfolio, ranked #12.

Oak Grove Capital first reported a position in COST in Q4 2017 and has held it in 28 quarters since. The position peaked at $21.5M in Q2 2025. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Oak Grove Capital held 19,573 shares of Costco worth $19.5M as of Q1 2026.
  • Oak Grove Capital bought 175 Costco shares in Q1 2026, an estimated $171K.
  • Costco made up 1.65% of Oak Grove Capital's portfolio in Q1 2026, its #12 holding.
  • Oak Grove Capital first reported a position in Costco in Q4 2017 and has held it in 28 quarters since.
  • Oak Grove Capital's Costco position peaked at $21.5M in Q2 2025.
  • 4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Oak Grove Capital's 13F filing for Q1 2026, filed 13 May 2026.