SWK
COST icon

Stephen W. Kidder’s Costco COST Stock Holding History

Stephen W. Kidder’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 		$432K Sell
462
-25
-5% -$24.9K 0.11% 59
2026
Q1 		$485K Hold
487
– – 0.14% 55
2025
Q4 		$420K Sell
487
-10
-2% -$9.06K 0.12% 55
2025
Q3 		$460K Sell
497
-50
-9% -$47.9K 0.13% 57
2025
Q2 		$541K Buy
547
+3
+0.6% +$2.98K 0.16% 55
2025
Q1 		$515K Buy
544
+275
+102% +$268K 0.16% 53
2024
Q4 		$246K Buy
269
+28
+12% +$26K 0.07% 61
2024
Q3 		$214K Hold
241
– – 0.06% 71
2024
Q2 		$205K Buy
+241
New +$188K 0.06% 69

Other funds holding COST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Stephen W. Kidder's COST Position: Q2 2026 in Review

Stephen W. Kidder reduced its Costco (COST) stake by 5.1% in Q2 2026, selling an estimated $24.9K and leaving 462 shares worth $432K. The position accounts for 0.11% of the portfolio, ranked #59.

Stephen W. Kidder first reported a position in COST in Q2 2024 and has held it in 9 quarters since. The position peaked at $541K in Q2 2025. 4,238 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Stephen W. Kidder held 462 shares of Costco worth $432K as of Q2 2026.
  • Stephen W. Kidder sold 25 Costco shares in Q2 2026, an estimated $24.9K.
  • Costco made up 0.11% of Stephen W. Kidder's portfolio in Q2 2026, its #59 holding.
  • Stephen W. Kidder first reported a position in Costco in Q2 2024 and has held it in 9 quarters since.
  • Stephen W. Kidder's Costco position peaked at $541K in Q2 2025.
  • 4,238 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Stephen W. Kidder's 13F filing for Q2 2026, filed 21 Aug 2026.