GIP
COST icon

Granite Investment Partners’s Costco COST Stock Holding History

Granite Investment Partners’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 		$18.3M Buy
18,327
+444
+2% +$433K 1.12% 17
2025
Q4 		$15.4M Sell
17,883
-332
-2% -$301K 0.91% 25
2025
Q3 		$16.9M Sell
18,215
-1,015
-5% -$973K 0.96% 23
2025
Q2 		$19M Sell
19,230
-221
-1% -$220K 0.93% 33
2025
Q1 		$18.4M Sell
19,451
-65
-0.3% -$63.4K 0.94% 25
2024
Q4 		$17.9M Sell
19,516
-251
-1% -$233K 0.77% 39
2024
Q3 		$17.5M Sell
19,767
-481
-2% -$417K 0.75% 41
2024
Q2 		$17.2M Sell
20,248
-72
-0.4% -$56.2K 0.71% 42
2024
Q1 		$14.9M Sell
20,320
-60
-0.3% -$42.8K 0.57% 66
2023
Q4 		$13.5M Sell
20,380
-180
-0.9% -$107K 0.52% 70
2023
Q3 		$11.6M Buy
20,560
+434
+2% +$240K 0.49% 74
2023
Q2 		$10.8M Sell
20,126
-7
-0% -$3.54K 0.43% 86
2023
Q1 		$10M Sell
20,133
-673
-3% -$330K 0.42% 85
2022
Q4 		$9.5M Sell
20,806
-2,028
-9% -$991K 0.39% 87
2022
Q3 		$10.8M Sell
22,834
-5,268
-19% -$2.74M 0.47% 78
2022
Q2 		$13.5M Sell
28,102
-169
-0.6% -$85.7K 0.56% 69
2022
Q1 		$16.3M Sell
28,271
-441
-2% -$231K 0.55% 72
2021
Q4 		$16.3M Sell
28,712
-13
-0% -$6.66K 0.48% 86
2021
Q3 		$12.9M Buy
28,725
+26
+0.1% +$11.4K 0.4% 96
2021
Q2 		$11.4M Buy
28,699
+19
+0.1% +$7.18K 0.35% 99
2021
Q1 		$10.1M Sell
28,680
-3
-0% -$1.04K 0.34% 101
2020
Q4 		$10.8M Sell
28,683
-1,200
-4% -$448K 0.38% 97
2020
Q3 		$10.6M Sell
29,883
-363
-1% -$122K 0.47% 87
2020
Q2 		$9.17M Sell
30,246
-320
-1% -$97.4K 0.44% 85
2020
Q1 		$8.71M Sell
30,566
-232
-0.8% -$70.4K 0.56% 69
2019
Q4 		$9.05M Sell
30,798
-972
-3% -$289K 0.43% 81
2019
Q3 		$9.15M Buy
31,770
+8
+0% +$2.25K 0.47% 79
2019
Q2 		$8.39M Buy
31,762
+11
+0% +$2.74K 0.45% 84
2019
Q1 		$7.69M Buy
31,751
+12
+0% +$2.63K 0.44% 84
2018
Q4 		$6.47M Sell
31,739
-22
-0.1% -$4.91K 0.47% 86
2018
Q3 		$7.46M Sell
31,761
-400
-1% -$90.1K 0.43% 92
2018
Q2 		$6.72M Hold
32,161
– – 0.43% 93
2018
Q1 		$6.06M Buy
32,161
+2,026
+7% +$382K 0.41% 96
2017
Q4 		$5.61M Sell
30,135
-2,381
-7% -$411K 0.35% 101
2017
Q3 		$5.34M Sell
32,516
-4,796
-13% -$753K 0.33% 102
2017
Q2 		$5.97M Hold
37,312
– – 0.4% 92
2017
Q1 		$6.26M Buy
37,312
+300
+0.8% +$50.3K 0.43% 97
2016
Q4 		$5.93M Buy
37,012
+80
+0.2% +$12.2K 0.44% 94
2016
Q3 		$5.63M Buy
36,932
+205
+0.6% +$33.1K 0.42% 97
2016
Q2 		$5.77M Buy
36,727
+75
+0.2% +$11.4K 0.45% 92
2016
Q1 		$5.78M Hold
36,652
– – 0.52% 70
2015
Q4 		$5.92M Buy
36,652
+667
+2% +$105K 0.54% 78
2015
Q3 		$5.2M Hold
35,985
– – 0.5% 87
2015
Q2 		$4.86M Hold
35,985
– – 0.45% 99
2015
Q1 		$5.45M Hold
35,985
– – 0.47% 94
2014
Q4 		$5.1M Hold
35,985
– – 0.57% 50
2014
Q3 		$4.51M Hold
35,985
– – 0.62% 43
2014
Q2 		$4.14M Hold
35,985
– – 0.59% 44
2014
Q1 		$4.02M Hold
35,985
– – 0.63% 45
2013
Q4 		$4.28M Hold
35,985
– – 0.66% 48
2013
Q3 		$4.14M Buy
35,985
+50
+0.1% +$5.77K 0.67% 48
2013
Q2 		$3.97M Buy
+35,935
New +$3.93M 0.7% 46

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

Granite Investment Partners's COST Position: Q1 2026 in Review

Granite Investment Partners increased its Costco (COST) stake by 2.5% in Q1 2026, buying an estimated $433K and bringing the position to 18,327 shares worth $18.3M. The position accounts for 1.12% of the portfolio, ranked #17.

Granite Investment Partners first reported a position in COST in Q2 2013 and has held it in 52 quarters since. The position peaked at $19M in Q2 2025. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Granite Investment Partners held 18,327 shares of Costco worth $18.3M as of Q1 2026.
  • Granite Investment Partners bought 444 Costco shares in Q1 2026, an estimated $433K.
  • Costco made up 1.12% of Granite Investment Partners's portfolio in Q1 2026, its #17 holding.
  • Granite Investment Partners first reported a position in Costco in Q2 2013 and has held it in 52 quarters since.
  • Granite Investment Partners's Costco position peaked at $19M in Q2 2025.
  • 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Granite Investment Partners's 13F filing for Q1 2026, filed 30 Apr 2026.