GAMMA Investing
COST icon

GAMMA Investing’s Costco COST Stock Holding History

GAMMA Investing’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 		$11.2M Sell
12,350
-413
-3% -$386K 0.38% 35
2026
Q2 		$11.9M Buy
12,763
+952
+8% +$949K 0.44% 34
2026
Q1 		$11.8M Buy
11,811
+2,366
+25% +$2.31M 0.55% 23
2025
Q4 		$8.14M Sell
9,445
-321
-3% -$291K 0.41% 28
2025
Q3 		$9.04M Buy
9,766
+48
+0.5% +$46K 0.5% 27
2025
Q2 		$9.6M Buy
9,718
+1,090
+13% +$1.08M 0.61% 22
2025
Q1 		$8.16M Buy
8,628
+966
+13% +$942K 0.61% 24
2024
Q4 		$7.02M Buy
7,662
+1,001
+15% +$929K 0.6% 22
2024
Q3 		$5.91M Buy
6,661
+1,300
+24% +$1.13M 0.59% 22
2024
Q2 		$4.56M Buy
5,361
+1,418
+36% +$1.11M 0.62% 21
2024
Q1 		$2.89M Buy
3,943
+690
+21% +$493K 0.59% 23
2023
Q4 		$2.26M Buy
+3,253
New +$1.93M 0.61% 23

Other funds holding COST

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return

GAMMA Investing's COST Position: Q3 2026 in Review

GAMMA Investing reduced its Costco (COST) stake by 3.2% in Q3 2026, selling an estimated $386K and leaving 12,350 shares worth $11.2M. The position accounts for 0.38% of the portfolio, ranked #35.

GAMMA Investing first reported a position in COST in Q4 2023 and has held it in 12 quarters since. The position peaked at $11.9M in Q2 2026. 2,986 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • GAMMA Investing held 12,350 shares of Costco worth $11.2M as of Q3 2026.
  • GAMMA Investing sold 413 Costco shares in Q3 2026, an estimated $386K.
  • Costco made up 0.38% of GAMMA Investing's portfolio in Q3 2026, its #35 holding.
  • GAMMA Investing first reported a position in Costco in Q4 2023 and has held it in 12 quarters since.
  • GAMMA Investing's Costco position peaked at $11.9M in Q2 2026.
  • 2,986 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on GAMMA Investing's 13F filing for Q3 2026, filed 8 Oct 2026.