Riverwater Partners
COST icon

Riverwater Partners’s Costco COST Stock Holding History

Riverwater Partners’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
Q3 		$715K Sell
785
-62
-7% -$57.9K 0.2% 116
2026
Q2 		$792K Buy
847
+49
+6% +$48.8K 0.24% 105
2026
Q1 		$795K Buy
798
+31
+4% +$30.2K 0.27% 102
2025
Q4 		$661K Sell
767
-12
-2% -$10.9K 0.26% 108
2025
Q3 		$721K Sell
779
-40
-5% -$38.3K 0.3% 96
2025
Q2 		$811K Buy
819
+9
+1% +$8.94K 0.38% 83
2025
Q1 		$766K Sell
810
-43
-5% -$41.9K 0.39% 78
2024
Q4 		$782K Buy
853
+3
+0.4% +$2.78K 0.38% 71
2024
Q3 		$747K Sell
850
-15
-2% -$13K 0.37% 77
2024
Q2 		$735K Buy
865
+355
+70% +$277K 0.54% 46
2024
Q1 		$374K Buy
+510
New +$364K 0.27% 114

Other funds holding COST

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Morgan Stanley
Morgan Stanley New York $1.96T AUM 27.49% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return

Riverwater Partners's COST Position: Q3 2026 in Review

Riverwater Partners reduced its Costco (COST) stake by 7.3% in Q3 2026, selling an estimated $57.9K and leaving 785 shares worth $715K. The position accounts for 0.2% of the portfolio, ranked #116.

Riverwater Partners first reported a position in COST in Q1 2024 and has held it in 11 quarters since. The position peaked at $811K in Q2 2025. 3,744 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • Riverwater Partners held 785 shares of Costco worth $715K as of Q3 2026.
  • Riverwater Partners sold 62 Costco shares in Q3 2026, an estimated $57.9K.
  • Costco made up 0.2% of Riverwater Partners's portfolio in Q3 2026, its #116 holding.
  • Riverwater Partners first reported a position in Costco in Q1 2024 and has held it in 11 quarters since.
  • Riverwater Partners's Costco position peaked at $811K in Q2 2025.
  • 3,744 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Riverwater Partners's 13F filing for Q3 2026, filed 3 Nov 2026.