California State Teachers Retirement System (CalSTRS)’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 | $685M | Sell |
687,142
-15,252
| -2% | -$14.9M | 0.72% | 18 |
|
|
2025
Q4 | $606M | Sell |
702,394
-8,215
| -1% | -$7.44M | 0.61% | 22 |
|
|
2025
Q3 | $658M | Buy |
710,609
+4,599
| +0.7% | +$4.41M | 0.67% | 19 |
|
|
2025
Q2 | $699M | Buy |
706,010
+3,168
| +0.5% | +$3.15M | 0.78% | 16 |
|
|
2025
Q1 | $665M | Sell |
702,842
-3,355
| -0.5% | -$3.27M | 0.82% | 16 |
|
|
2024
Q4 | $647M | Sell |
706,197
-18,288
| -3% | -$17M | 0.76% | 16 |
|
|
2024
Q3 | $642M | Sell |
724,485
-1,527
| -0.2% | -$1.33M | 0.75% | 19 |
|
|
2024
Q2 | $617M | Buy |
726,012
+997
| +0.1% | +$778K | 0.76% | 17 |
|
|
2024
Q1 | $531M | Buy |
725,015
+7,219
| +1% | +$5.15M | 0.67% | 21 |
|
|
2023
Q4 | $474M | Buy |
717,796
+10,588
| +1% | +$6.28M | 0.65% | 20 |
|
|
2023
Q3 | $400M | Sell |
707,208
-28,033
| -4% | -$15.5M | 0.61% | 24 |
|
|
2023
Q2 | $396M | Sell |
735,241
-14,222
| -2% | -$7.2M | 0.56% | 25 |
|
|
2023
Q1 | $372M | Sell |
749,463
-7,663
| -1% | -$3.76M | 0.55% | 28 |
|
|
2022
Q4 | $346M | Buy |
757,126
+8,554
| +1% | +$4.18M | 0.54% | 30 |
|
|
2022
Q3 | $354M | Sell |
748,572
-8,524
| -1% | -$4.43M | 0.6% | 27 |
|
|
2022
Q2 | $363M | Buy |
757,096
+2,632
| +0.3% | +$1.34M | 0.57% | 28 |
|
|
2022
Q1 | $434M | Sell |
754,464
-44,596
| -6% | -$23.4M | 0.57% | 26 |
|
|
2021
Q4 | $454M | Sell |
799,060
-165
| -0% | -$84.5K | 0.53% | 29 |
|
|
2021
Q3 | $359M | Sell |
799,225
-21,317
| -3% | -$9.37M | 0.46% | 37 |
|
|
2021
Q2 | $325M | Sell |
820,542
-34,787
| -4% | -$13.2M | 0.41% | 46 |
|
|
2021
Q1 | $301M | Sell |
855,329
-7,608
| -0.9% | -$2.65M | 0.4% | 45 |
|
|
2020
Q4 | $325M | Buy |
862,937
+7,908
| +0.9% | +$2.95M | 0.45% | 39 |
|
|
2020
Q3 | $304M | Buy |
855,029
+616
| +0.1% | +$207K | 0.49% | 37 |
|
|
2020
Q2 | $259M | Sell |
854,413
-11,669
| -1% | -$3.55M | 0.46% | 43 |
|
|
2020
Q1 | $247M | Sell |
866,082
-2,905
| -0.3% | -$881K | 0.53% | 34 |
|
|
2019
Q4 | $255M | Buy |
868,987
+61,585
| +8% | +$18.3M | 0.43% | 42 |
|
|
2019
Q3 | $233M | Buy |
807,402
+9,197
| +1% | +$2.59M | 0.45% | 37 |
|
|
2019
Q2 | $211M | Buy |
798,205
+57,418
| +8% | +$14.3M | 0.42% | 43 |
|
|
2019
Q1 | $179M | Buy |
740,787
+3,424
| +0.5% | +$749K | 0.37% | 54 |
|
|
2018
Q4 | $150M | Buy |
737,363
+18,928
| +3% | +$4.23M | 0.34% | 55 |
|
|
2018
Q3 | $169M | Sell |
718,435
-961
| -0.1% | -$216K | 0.33% | 58 |
|
|
2018
Q2 | $150M | Buy |
719,396
+4,429
| +0.6% | +$875K | 0.31% | 60 |
|
|
2018
Q1 | $135M | Sell |
714,967
-23,815
| -3% | -$4.49M | 0.29% | 66 |
|
|
2017
Q4 | $138M | Sell |
738,782
-9,441
| -1% | -$1.63M | 0.28% | 66 |
|
|
2017
Q3 | $123M | Sell |
748,223
-60,010
| -7% | -$9.43M | 0.27% | 70 |
|
|
2017
Q2 | $129M | Sell |
808,233
-59,800
| -7% | -$10.3M | 0.28% | 70 |
|
|
2017
Q1 | $146M | Sell |
868,033
-39,800
| -4% | -$6.67M | 0.29% | 67 |
|
|
2016
Q4 | $145M | Sell |
907,833
-24,200
| -3% | -$3.69M | 0.3% | 61 |
|
|
2016
Q3 | $142M | Buy |
932,033
+7,800
| +0.8% | +$1.26M | 0.29% | 62 |
|
|
2016
Q2 | $145M | Sell |
924,233
-10,526
| -1% | -$1.59M | 0.31% | 58 |
|
|
2016
Q1 | $147M | Buy |
934,759
+119,415
| +15% | +$18.1M | 0.31% | 60 |
|
|
2015
Q4 | $132M | Buy |
815,344
+12,989
| +2% | +$2.05M | 0.32% | 58 |
|
|
2015
Q3 | $116M | Sell |
802,355
-1,200
| -0.1% | -$171K | 0.3% | 62 |
|
|
2015
Q2 | $109M | Sell |
803,555
-3,970
| -0.5% | -$571K | 0.26% | 71 |
|
|
2015
Q1 | $122M | Sell |
807,525
-13,785
| -2% | -$2.02M | 0.29% | 64 |
|
|
2014
Q4 | $116M | Buy |
821,310
+7,778
| +1% | +$1.06M | 0.27% | 71 |
|
|
2014
Q3 | $102M | Buy |
813,532
+10,389
| +1% | +$1.26M | 0.25% | 75 |
|
|
2014
Q2 | $92.5M | Buy |
803,143
+9,300
| +1% | +$1.07M | 0.23% | 85 |
|
|
2014
Q1 | $88.7M | Buy |
793,843
+3,800
| +0.5% | +$435K | 0.23% | 82 |
|
|
2013
Q4 | $94M | Buy |
790,043
+5,400
| +0.7% | +$646K | 0.25% | 76 |
|
|
2013
Q3 | $90.3M | Buy |
784,643
+24,233
| +3% | +$2.8M | 0.27% | 73 |
|
|
2013
Q2 | $84.1M | Buy |
+760,410
| New | +$83.1M | 0.27% | 70 |
|
Other funds holding COST
VCM
VPM
DAM
California State Teachers Retirement System (CalSTRS)'s COST Position: Q1 2026 in Review
California State Teachers Retirement System (CalSTRS) reduced its Costco (COST) stake by 2.2% in Q1 2026, selling an estimated $14.9M and leaving 687,142 shares worth $685M. The position accounts for 0.72% of the portfolio, ranked #18.
California State Teachers Retirement System (CalSTRS) first reported a position in COST in Q2 2013 and has held it in 52 quarters since. The position peaked at $699M in Q2 2025. 4,238 funds tracked by Wall St. Rank hold COST as of Q1 2026.
- California State Teachers Retirement System (CalSTRS) held 687,142 shares of Costco worth $685M as of Q1 2026.
- California State Teachers Retirement System (CalSTRS) sold 15,252 Costco shares in Q1 2026, an estimated $14.9M.
- Costco made up 0.72% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #18 holding.
- California State Teachers Retirement System (CalSTRS) first reported a position in Costco in Q2 2013 and has held it in 52 quarters since.
- California State Teachers Retirement System (CalSTRS)'s Costco position peaked at $699M in Q2 2025.
- 4,238 funds tracked by Wall St. Rank held Costco as of Q1 2026.
Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.