Flavin Financial Services
COST icon

Flavin Financial Services’s Costco COST Stock Holding History

Flavin Financial Services’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 		$1.99M Buy
2,191
+304
+16% +$284K 1.08% 33
2026
Q2 		$1.77M Buy
1,887
+16
+0.9% +$15.9K 1.01% 34
2026
Q1 		$1.86M Buy
1,871
+65
+4% +$63.3K 1.25% 30
2025
Q4 		$1.56M Buy
1,806
+177
+11% +$160K 1.07% 34
2025
Q3 		$1.51M Buy
1,629
+55
+3% +$52.7K 1.07% 33
2025
Q2 		$1.56M Sell
1,574
-10
-0.6% -$9.9K 1.51% 26
2025
Q1 		$1.5M Sell
1,584
-46
-3% -$44.8K 1.38% 30
2024
Q4 		$1.49M Buy
+1,630
New +$1.51M 1.42% 29

Other funds holding COST

Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return
Everett Harris & Co
Everett Harris & Co Los Angeles, California $8.46B AUM 13.48% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $118B AUM 40.52% 1-Year Est. Return
Emerald Advisors
Emerald Advisors Bellevue, Washington $781M AUM 4.78% 1-Year Est. Return
Parnassus Investments
Parnassus Investments San Francisco, California $33.8B AUM 31.08% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $103B AUM 40.17% 1-Year Est. Return
ProShare Advisors
ProShare Advisors Bethesda, Maryland $69.5B AUM 31.38% 1-Year Est. Return
Bank Julius Baer & Co
Bank Julius Baer & Co Zurich, Switzerland $39.3B AUM 31.81% 1-Year Est. Return
Provident Trust Company
Provident Trust Company Waukesha, Wisconsin $3.22B AUM 13.63% 1-Year Est. Return
Commonwealth Equity Services
Commonwealth Equity Services Waltham, Massachusetts $77B AUM 19.24% 1-Year Est. Return

Flavin Financial Services's COST Position: Q3 2026 in Review

Flavin Financial Services increased its Costco (COST) stake by 16% in Q3 2026, buying an estimated $284K and bringing the position to 2,191 shares worth $1.99M. The position accounts for 1.08% of the portfolio, ranked #33.

Flavin Financial Services first reported a position in COST in Q4 2024 and has held it in 8 quarters since. 1,985 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • Flavin Financial Services held 2,191 shares of Costco worth $1.99M as of Q3 2026.
  • Flavin Financial Services bought 304 Costco shares in Q3 2026, an estimated $284K.
  • Costco made up 1.08% of Flavin Financial Services's portfolio in Q3 2026, its #33 holding.
  • Flavin Financial Services first reported a position in Costco in Q4 2024 and has held it in 8 quarters since.
  • 1,985 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Flavin Financial Services's 13F filing for Q3 2026, filed 21 Oct 2026.