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Promethium Advisors’s Costco COST Stock Holding History

Promethium Advisors’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 		$324K Hold
325
– – 0.17% 89
2025
Q4 		$280K Hold
325
– – 0.15% 95
2025
Q3 		$301K Hold
325
– – 0.17% 98
2025
Q2 		$322K Hold
325
– – 0.2% 95
2025
Q1 		$307K Sell
325
-16
-5% -$15.6K 0.2% 96
2024
Q4 		$312K Sell
341
-10
-3% -$9.28K 0.21% 101
2024
Q3 		$311K Buy
+351
New +$305K 0.22% 102

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

Promethium Advisors's COST Position: Q1 2026 in Review

Promethium Advisors held its Costco (COST) position steady in Q1 2026 at 325 shares worth $324K. The position accounts for 0.17% of the portfolio, ranked #89.

Promethium Advisors first reported a position in COST in Q3 2024 and has held it in 7 quarters since. 4,238 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Promethium Advisors held 325 shares of Costco worth $324K as of Q1 2026.
  • Promethium Advisors left its Costco share count unchanged in Q1 2026.
  • Costco made up 0.17% of Promethium Advisors's portfolio in Q1 2026, its #89 holding.
  • Promethium Advisors first reported a position in Costco in Q3 2024 and has held it in 7 quarters since.
  • 4,238 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Promethium Advisors's 13F filing for Q1 2026, filed 22 Apr 2026.