T. Rowe Price Investment Management
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T. Rowe Price Investment Management’s Costco COST Stock Holding History

T. Rowe Price Investment Management’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 		$3.66M Buy
3,675
+1,925
+110% +$1.88M ﹤0.01% 577
2025
Q4 		$1.51M Buy
+1,750
New +$1.59M ﹤0.01% 632
2023
Q4 		– Sell
-3,364
Closed -$1.9M – 605
2023
Q3 		$1.9M Buy
3,364
+2,646
+369% +$1.46M ﹤0.01% 547
2023
Q2 		$387K Buy
+718
New +$363K ﹤0.01% 550

Other funds holding COST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 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 $147M AUM 25.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

T. Rowe Price Investment Management's COST Position: Q1 2026 in Review

T. Rowe Price Investment Management increased its Costco (COST) stake by 110% in Q1 2026, buying an estimated $1.88M and bringing the position to 3,675 shares worth $3.66M. The position accounts for ﹤0.01% of the portfolio, ranked #577.

T. Rowe Price Investment Management first reported a position in COST in Q2 2023 and has held it in 4 quarters since. 4,248 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • T. Rowe Price Investment Management held 3,675 shares of Costco worth $3.66M as of Q1 2026.
  • T. Rowe Price Investment Management bought 1,925 Costco shares in Q1 2026, an estimated $1.88M.
  • Costco made up ﹤0.01% of T. Rowe Price Investment Management's portfolio in Q1 2026, its #577 holding.
  • T. Rowe Price Investment Management first reported a position in Costco in Q2 2023 and has held it in 4 quarters since.
  • 4,248 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on T. Rowe Price Investment Management's 13F filing for Q1 2026, filed 15 May 2026.