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Harbour Investment Management’s Costco COST Stock Holding History

Harbour 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
Q2 		$9.5M Sell
10,155
-115
-1% -$115K 4.91% 4
2026
Q1 		$10.2M Sell
10,270
-1,895
-16% -$1.85M 5.56% 3
2025
Q4 		$10.5M Sell
12,165
-4,651
-28% -$4.21M 5.56% 2
2025
Q3 		$15.6M Sell
16,816
-1,390
-8% -$1.33M 6.77% 2
2025
Q2 		$18M Sell
18,206
-201
-1% -$200K 7.8% 2
2025
Q1 		$17.4M Sell
18,407
-1,220
-6% -$1.19M 7.87% 2
2024
Q4 		$18M Sell
19,627
-7
-0% -$6.5K 7.89% 2
2024
Q3 		$17.4M Hold
19,634
– – 7.71% 2
2024
Q2 		$16.7M Buy
19,634
+61
+0.3% +$47.6K 7.71% 2
2024
Q1 		$14.3M Sell
19,573
-70
-0.4% -$50K 6.73% 2
2023
Q4 		$13.3M Sell
19,643
-53
-0.3% -$31.4K 6.92% 2
2023
Q3 		$11.1M Sell
19,696
-916
-4% -$506K 6.35% 2
2023
Q2 		$11.1M Sell
20,612
-100
-0.5% -$50.6K 5.84% 2
2023
Q1 		$10.3M Sell
20,712
-25
-0.1% -$12.3K 5.7% 2
2022
Q4 		$9.47M Sell
20,737
-130
-0.6% -$63.5K 5.46% 2
2022
Q3 		$9.86M Buy
20,867
+1,005
+5% +$523K 6.17% 2
2022
Q2 		$9.52M Sell
19,862
-530
-3% -$269K 5.73% 2
2022
Q1 		$11.7M Sell
20,392
-1,355
-6% -$711K 5.71% 2
2021
Q4 		$12.3M Buy
21,747
+880
+4% +$451K 5.63% 2
2021
Q3 		$9.38M Sell
20,867
-739
-3% -$325K 4.75% 3
2021
Q2 		$8.55M Sell
21,606
-45
-0.2% -$17K 4.28% 4
2021
Q1 		$7.63M Sell
21,651
-69
-0.3% -$24K 4.07% 4
2020
Q4 		$8.18M Sell
21,720
-30
-0.1% -$11.2K 4.57% 4
2020
Q3 		$7.72M Buy
21,750
+50
+0.2% +$16.8K 4.78% 3
2020
Q2 		$6.58M Sell
21,700
-904
-4% -$275K 4.59% 2
2020
Q1 		$6.45M Sell
22,604
-15
-0.1% -$4.55K 5.16% 2
2019
Q4 		$6.65M Sell
22,619
-40
-0.2% -$11.9K 4.38% 2
2019
Q3 		$6.53M Sell
22,659
-1,082
-5% -$304K 4.63% 2
2019
Q2 		$6.27M Sell
23,741
-80
-0.3% -$19.9K 4.43% 2
2019
Q1 		$5.77M Buy
23,821
+654
+3% +$143K 4.26% 2
2018
Q4 		$4.72M Sell
23,167
-203
-0.9% -$45.3K 3.88% 2
2018
Q3 		$5.49M Sell
23,370
-40
-0.2% -$9.01K 4.01% 2
2018
Q2 		$4.89M Sell
23,410
-850
-4% -$168K 3.83% 2
2018
Q1 		$4.57M Sell
24,260
-285
-1% -$53.8K 3.41% 4
2017
Q4 		$4.57M Sell
24,545
-1,200
-5% -$207K 3.22% 4
2017
Q3 		$4.23M Hold
25,745
– – 2.96% 4
2017
Q2 		$4.12M Sell
25,745
-355
-1% -$61.2K 3.01% 4
2017
Q1 		$4.38M Sell
26,100
-645
-2% -$108K 3.24% 4
2016
Q4 		$4.28M Sell
26,745
-55
-0.2% -$8.4K 3.25% 3
2016
Q3 		$4.09M Sell
26,800
-75
-0.3% -$12.1K 3.13% 4
2016
Q2 		$4.22M Buy
26,875
+110
+0.4% +$16.7K 3.23% 3
2016
Q1 		$4.22M Sell
26,765
-295
-1% -$44.7K 3.24% 3
2015
Q4 		$4.37M Sell
27,060
-110
-0.4% -$17.4K 3.4% 4
2015
Q3 		$3.93M Sell
27,170
-50
-0.2% -$7.13K 3.16% 4
2015
Q2 		$3.68M Sell
27,220
-315
-1% -$45.3K 2.76% 7
2015
Q1 		$4.17M Sell
27,535
-5,415
-16% -$795K 3.06% 3
2014
Q4 		$4.67M Sell
32,950
-275
-0.8% -$37.4K 2.94% 5
2014
Q3 		$4.16M Sell
33,225
-400
-1% -$48.3K 2.77% 5
2014
Q2 		$3.87M Sell
33,625
-500
-1% -$57.4K 2.46% 9
2014
Q1 		$3.81M Buy
34,125
+730
+2% +$83.5K 2.49% 9
2013
Q4 		$3.98M Sell
33,395
-930
-3% -$111K 2.66% 5
2013
Q3 		$3.95M Sell
34,325
-120
-0.3% -$13.8K 2.75% 4
2013
Q2 		$3.81M Buy
+34,445
New +$3.77M 2.8% 3

Other funds holding COST

Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
EA
Emerald Advisors Bellevue, Washington $796M AUM 2.51% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return
Ninety One (UK)
Ninety One (UK) London, United Kingdom $44.7B AUM 17.24% 1-Year Est. Return
Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return
RG
Rathbones Group Liverpool, United Kingdom $27.1B AUM 20.2% 1-Year Est. Return
SP
Sarasin & Partners London, United Kingdom $8.54B AUM 9.6% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return

Harbour Investment Management's COST Position: Q2 2026 in Review

Harbour Investment Management reduced its Costco (COST) stake by 1.1% in Q2 2026, selling an estimated $115K and leaving 10,155 shares worth $9.5M. The position accounts for 4.91% of the portfolio, ranked #4.

Harbour Investment Management first reported a position in COST in Q2 2013 and has held it in 53 quarters since. The position peaked at $18M in Q2 2025. 1,443 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Harbour Investment Management held 10,155 shares of Costco worth $9.5M as of Q2 2026.
  • Harbour Investment Management sold 115 Costco shares in Q2 2026, an estimated $115K.
  • Costco made up 4.91% of Harbour Investment Management's portfolio in Q2 2026, its #4 holding.
  • Harbour Investment Management first reported a position in Costco in Q2 2013 and has held it in 53 quarters since.
  • Harbour Investment Management's Costco position peaked at $18M in Q2 2025.
  • 1,443 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Harbour Investment Management's 13F filing for Q2 2026, filed 22 Jul 2026.