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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
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% +$8.95K 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 $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

Riverwater Partners's COST Position: Q1 2026 in Review

Riverwater Partners increased its Costco (COST) stake by 4% in Q1 2026, buying an estimated $30.2K and bringing the position to 798 shares worth $795K. The position accounts for 0.27% of the portfolio, ranked #102.

Riverwater Partners first reported a position in COST in Q1 2024 and has held it in 9 quarters since. The position peaked at $811K in Q2 2025. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Riverwater Partners held 798 shares of Costco worth $795K as of Q1 2026.
  • Riverwater Partners bought 31 Costco shares in Q1 2026, an estimated $30.2K.
  • Costco made up 0.27% of Riverwater Partners's portfolio in Q1 2026, its #102 holding.
  • Riverwater Partners first reported a position in Costco in Q1 2024 and has held it in 9 quarters since.
  • Riverwater Partners's Costco position peaked at $811K in Q2 2025.
  • 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Riverwater Partners's 13F filing for Q1 2026, filed 8 May 2026.