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Prota Financial’s Costco COST Stock Holding History

Prota Financial’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 		$608K Buy
658
+12
+2% +$12K 0.4% 43
2026
Q1 		$643K Buy
646
+79
+14% +$77K 0.47% 27
2025
Q4 		$489K Buy
+567
New +$514K 0.35% 44

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
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return
Ninety One (UK)
Ninety One (UK) London, United Kingdom $44.7B AUM 17.24% 1-Year Est. Return
Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return
RG
Rathbones Group Liverpool, United Kingdom $27.1B AUM 20.2% 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

Prota Financial's COST Position: Q2 2026 in Review

Prota Financial increased its Costco (COST) stake by 1.9% in Q2 2026, buying an estimated $12K and bringing the position to 658 shares worth $608K. The position accounts for 0.4% of the portfolio, ranked #43.

Prota Financial first reported a position in COST in Q4 2025 and has held it in 3 quarters since. The position peaked at $643K in Q1 2026. 1,279 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Prota Financial held 658 shares of Costco worth $608K as of Q2 2026.
  • Prota Financial bought 12 Costco shares in Q2 2026, an estimated $12K.
  • Costco made up 0.4% of Prota Financial's portfolio in Q2 2026, its #43 holding.
  • Prota Financial first reported a position in Costco in Q4 2025 and has held it in 3 quarters since.
  • Prota Financial's Costco position peaked at $643K in Q1 2026.
  • 1,279 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Prota Financial's 13F filing for Q2 2026, filed 7 Jul 2026.