Arrowstreet Capital’s Costco COST Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $496M | Sell |
497,740
-491,886
| -50% | -$479M | 0.27% | 77 |
|
|
2025
Q4 | $853M | Buy |
989,626
+577,537
| +140% | +$523M | 0.5% | 38 |
|
|
2025
Q3 | $381M | Buy |
412,089
+166,499
| +68% | +$160M | 0.24% | 84 |
|
|
2025
Q2 | $243M | Buy |
245,590
+239,175
| +3,728% | +$238M | 0.17% | 112 |
|
|
2025
Q1 | $6.07M | Sell |
6,415
-123,988
| -95% | -$121M | ﹤0.01% | 966 |
|
|
2024
Q4 | $119M | Buy |
130,403
+29,043
| +29% | +$26.9M | 0.1% | 194 |
|
|
2024
Q3 | $89.9M | Buy |
101,360
+88,708
| +701% | +$77M | 0.08% | 228 |
|
|
2024
Q2 | $10.8M | Buy |
12,652
+12,084
| +2,127% | +$9.43M | 0.01% | 623 |
|
|
2024
Q1 | $416K | Buy |
+568
| New | +$405K | ﹤0.01% | 1480 |
|
|
2023
Q1 | – | Sell |
-7,901
| Closed | -$3.61M | – | 1373 |
|
|
2022
Q4 | $3.61M | Sell |
7,901
-110,056
| -93% | -$53.8M | 0.01% | 748 |
|
|
2022
Q3 | $55.7M | Sell |
117,957
-367,562
| -76% | -$191M | 0.08% | 211 |
|
|
2022
Q2 | $233M | Buy |
485,519
+392,929
| +424% | +$199M | 0.33% | 81 |
|
|
2022
Q1 | $53.3M | Sell |
92,590
-959,816
| -91% | -$504M | 0.07% | 246 |
|
|
2021
Q4 | $597M | Sell |
1,052,406
-17,931
| -2% | -$9.18M | 0.73% | 19 |
|
|
2021
Q3 | $481M | Buy |
1,070,337
+93,201
| +10% | +$41M | 0.6% | 29 |
|
|
2021
Q2 | $387M | Sell |
977,136
-100,074
| -9% | -$37.8M | 0.48% | 37 |
|
|
2021
Q1 | $380M | Buy |
1,077,210
+645,468
| +150% | +$225M | 0.51% | 36 |
|
|
2020
Q4 | $163M | Sell |
431,742
-125,469
| -23% | -$46.9M | 0.23% | 82 |
|
|
2020
Q3 | $198M | Buy |
557,211
+133,962
| +32% | +$45M | 0.31% | 49 |
|
|
2020
Q2 | $128M | Buy |
423,249
+306,649
| +263% | +$93.3M | 0.24% | 81 |
|
|
2020
Q1 | $33.2M | Buy |
+116,600
| New | +$35.4M | 0.09% | 197 |
|
|
2019
Q4 | – | Sell |
-60,275
| Closed | -$17.4M | – | 1771 |
|
|
2019
Q3 | $17.4M | Buy |
+60,275
| New | +$17M | 0.04% | 378 |
|
|
2019
Q1 | – | Sell |
-1,119,023
| Closed | -$228M | – | 1750 |
|
|
2018
Q4 | $228M | Sell |
1,119,023
-69,851
| -6% | -$15.6M | 0.6% | 44 |
|
|
2018
Q3 | $279M | Buy |
1,188,874
+1,183,674
| +22,763% | +$267M | 0.63% | 33 |
|
|
2018
Q2 | $1.09M | Buy |
+5,200
| New | +$1.03M | ﹤0.01% | 787 |
|
|
2018
Q1 | – | Sell |
-14,900
| Closed | -$2.77M | – | 1154 |
|
|
2017
Q4 | $2.77M | Buy |
+14,900
| New | +$2.57M | 0.01% | 733 |
|
|
2017
Q3 | – | Sell |
-20,000
| Closed | -$3.2M | – | 1124 |
|
|
2017
Q2 | $3.2M | Buy |
+20,000
| New | +$3.45M | 0.01% | 560 |
|
|
2016
Q4 | – | Sell |
-77,500
| Closed | -$11.8M | – | 1792 |
|
|
2016
Q3 | $11.8M | Buy |
+77,500
| New | +$12.5M | 0.04% | 402 |
|
|
2015
Q2 | – | Sell |
-23,800
| Closed | -$3.61M | – | 1194 |
|
|
2015
Q1 | $3.61M | Buy |
+23,800
| New | +$3.49M | 0.02% | 483 |
|
|
2014
Q3 | – | Sell |
-154,817
| Closed | -$17.8M | – | 999 |
|
|
2014
Q2 | $17.8M | Buy |
154,817
+52,317
| +51% | +$6M | 0.09% | 214 |
|
|
2014
Q1 | $11.4M | Buy |
+102,500
| New | +$11.7M | 0.07% | 254 |
|
|
2013
Q4 | – | Sell |
-1,220,709
| Closed | -$141M | – | 1168 |
|
|
2013
Q3 | $141M | Buy |
1,220,709
+241,228
| +25% | +$27.8M | 0.89% | 24 |
|
|
2013
Q2 | $108M | Buy |
+979,481
| New | +$107M | 0.81% | 27 |
|
Other funds holding COST
VCM
VPM
DAM
Arrowstreet Capital's COST Position: Q1 2026 in Review
Arrowstreet Capital reduced its Costco (COST) stake by 50% in Q1 2026, selling an estimated $479M and leaving 497,740 shares worth $496M. The position accounts for 0.27% of the portfolio, ranked #77.
Arrowstreet Capital first reported a position in COST in Q2 2013 and has held it in 33 quarters since. The position peaked at $853M in Q4 2025. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.
- Arrowstreet Capital held 497,740 shares of Costco worth $496M as of Q1 2026.
- Arrowstreet Capital sold 491,886 Costco shares in Q1 2026, an estimated $479M.
- Costco made up 0.27% of Arrowstreet Capital's portfolio in Q1 2026, its #77 holding.
- Arrowstreet Capital first reported a position in Costco in Q2 2013 and has held it in 33 quarters since.
- Arrowstreet Capital's Costco position peaked at $853M in Q4 2025.
- 4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.
Based on Arrowstreet Capital's 13F filing for Q1 2026, filed 14 May 2026.