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
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 $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

Stephen W. Kidder's COST Position: Q1 2026 in Review

Stephen W. Kidder held its Costco (COST) position steady in Q1 2026 at 487 shares worth $485K. The position accounts for 0.14% of the portfolio, ranked #55.

Stephen W. Kidder first reported a position in COST in Q2 2024 and has held it in 8 quarters since. The position peaked at $541K in Q2 2025. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Stephen W. Kidder held 487 shares of Costco worth $485K as of Q1 2026.
  • Stephen W. Kidder left its Costco share count unchanged in Q1 2026.
  • Costco made up 0.14% of Stephen W. Kidder's portfolio in Q1 2026, its #55 holding.
  • Stephen W. Kidder first reported a position in Costco in Q2 2024 and has held it in 8 quarters since.
  • Stephen W. Kidder's Costco position peaked at $541K in Q2 2025.
  • 4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Stephen W. Kidder's 13F filing for Q1 2026, filed 11 May 2026.