GW&K Investment Management’s Costco COST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$730K Buy
780
+202
+35% +$201K 0.01% 348
2026
Q1
$576K Buy
578
+133
+30% +$130K 0.01% 346
2025
Q4
$384K Buy
445
+22
+5% +$19.9K ﹤0.01% 359
2025
Q3
$392K Hold
423
﹤0.01% 356
2025
Q2
$419K Buy
423
+120
+40% +$119K ﹤0.01% 346
2025
Q1
$287K Buy
303
+7
+2% +$6.83K ﹤0.01% 362
2024
Q4
$271K Buy
296
+10
+3% +$9.28K ﹤0.01% 359
2024
Q3
$254K Buy
286
+38
+15% +$33K ﹤0.01% 352
2024
Q2
$211K Buy
248
+45
+22% +$35.1K ﹤0.01% 351
2024
Q1
$149K Sell
203
-3
-1% -$2.14K ﹤0.01% 356
2023
Q4
$136K Sell
206
-5
-2% -$2.96K ﹤0.01% 360
2023
Q3
$119K Buy
211
+46
+28% +$25.4K ﹤0.01% 356
2023
Q2
$89K Buy
+165
New +$83.5K ﹤0.01% 360
2022
Q3
Sell
-921
Closed -$441K 492
2022
Q2
$441K Sell
921
-23
-2% -$11.7K ﹤0.01% 330
2022
Q1
$544K Buy
+944
New +$495K ﹤0.01% 326
2021
Q3
Sell
-43
Closed -$17K 381
2021
Q2
$17K Buy
+43
New +$16.3K ﹤0.01% 365
2021
Q1
Sell
-38,673
Closed -$14.6M 388
2020
Q4
$14.6M Sell
38,673
-2,957
-7% -$1.1M 0.15% 213
2020
Q3
$14.8M Sell
41,630
-15
-0% -$5.04K 0.19% 198
2020
Q2
$12.6M Buy
41,645
+239
+0.6% +$72.7K 0.18% 199
2020
Q1
$11.8M Sell
41,406
-5,391
-12% -$1.64M 0.21% 176
2019
Q4
$13.8M Sell
46,797
-882
-2% -$262K 0.18% 190
2019
Q3
$13.7M Sell
47,679
-6,826
-13% -$1.92M 0.19% 184
2019
Q2
$14.4M Sell
54,505
-938
-2% -$234K 0.22% 184
2019
Q1
$13.4M Sell
55,443
-471
-0.8% -$103K 0.22% 179
2018
Q4
$11.4M Sell
55,914
-1,085
-2% -$242K 0.22% 166
2018
Q3
$13.4M Sell
56,999
-947
-2% -$213K 0.22% 171
2018
Q2
$12.1M Sell
57,946
-1,470
-2% -$290K 0.2% 183
2018
Q1
$11.2M Sell
59,416
-628
-1% -$118K 0.19% 181
2017
Q4
$11.2M Sell
60,044
-11,137
-16% -$1.92M 0.19% 179
2017
Q3
$11.7M Sell
71,181
-371
-0.5% -$58.3K 0.2% 175
2017
Q2
$11.4M Sell
71,552
-1,378
-2% -$237K 0.2% 167
2017
Q1
$12.2M Sell
72,930
-4,123
-5% -$691K 0.23% 156
2016
Q4
$12.3M Sell
77,053
-1,374
-2% -$210K 0.24% 152
2016
Q3
$12M Buy
78,427
+7,846
+11% +$1.27M 0.22% 155
2016
Q2
$11.1M Sell
70,581
-2,000
-3% -$303K 0.23% 143
2016
Q1
$11.4M Buy
72,581
+3,610
+5% +$547K 0.25% 135
2015
Q4
$11.1M Buy
68,971
+990
+1% +$156K 0.26% 129
2015
Q3
$9.83M Sell
67,981
-1,429
-2% -$204K 0.23% 133
2015
Q2
$9.38M Buy
69,410
+16,580
+31% +$2.38M 0.21% 140
2015
Q1
$8M Sell
52,830
-1,460
-3% -$214K 0.18% 146
2014
Q4
$7.7M Sell
54,290
-1,001
-2% -$136K 0.18% 144
2014
Q3
$6.93M Sell
55,291
-56
-0.1% -$6.77K 0.18% 147
2014
Q2
$6.37M Sell
55,347
-17,240
-24% -$1.98M 0.16% 151
2014
Q1
$8.11M Sell
72,587
-16
-0% -$1.83K 0.22% 137
2013
Q4
$8.64M Sell
72,603
-797
-1% -$95.3K 0.24% 127
2013
Q3
$8.45M Buy
73,400
+193
+0.3% +$22.3K 0.26% 118
2013
Q2
$8.09M Buy
+73,207
New +$8M 0.3% 115

Other funds holding COST

GW&K Investment Management's COST Position: Q2 2026 in Review

GW&K Investment Management increased its Costco (COST) stake by 35% in Q2 2026, buying an estimated $201K and bringing the position to 780 shares worth $730K. The position accounts for 0.01% of the portfolio, ranked #348.

GW&K Investment Management first reported a position in COST in Q2 2013 and has held it in 47 quarters since. The position peaked at $14.8M in Q3 2020. 4,224 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • GW&K Investment Management held 780 shares of Costco worth $730K as of Q2 2026.
  • GW&K Investment Management bought 202 Costco shares in Q2 2026, an estimated $201K.
  • Costco made up 0.01% of GW&K Investment Management's portfolio in Q2 2026, its #348 holding.
  • GW&K Investment Management first reported a position in Costco in Q2 2013 and has held it in 47 quarters since.
  • GW&K Investment Management's Costco position peaked at $14.8M in Q3 2020.
  • 4,224 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on GW&K Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.