State of Michigan Retirement System’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 | $119M | Sell |
119,669
-50,100
| -30% | -$48.8M | 0.63% | 26 |
|
|
2025
Q4 | $146M | Sell |
169,769
-5,100
| -3% | -$4.62M | 0.71% | 20 |
|
|
2025
Q3 | $162M | Sell |
174,869
-700
| -0.4% | -$671K | 0.78% | 19 |
|
|
2025
Q2 | $174M | Buy |
175,569
+300
| +0.2% | +$298K | 0.9% | 17 |
|
|
2025
Q1 | $166M | Buy |
175,269
+200
| +0.1% | +$195K | 0.96% | 17 |
|
|
2024
Q4 | $160M | Sell |
175,069
-2,600
| -1% | -$2.41M | 0.83% | 18 |
|
|
2024
Q3 | $158M | Sell |
177,669
-700
| -0.4% | -$608K | 0.78% | 21 |
|
|
2024
Q2 | $152M | Buy |
178,369
+20,400
| +13% | +$15.9M | 0.78% | 20 |
|
|
2024
Q1 | $116M | Buy |
157,969
+30,400
| +24% | +$21.7M | 0.62% | 27 |
|
|
2023
Q4 | $84.2M | Buy |
127,569
+200
| +0.2% | +$119K | 0.5% | 33 |
|
|
2023
Q3 | $72M | Sell |
127,369
-2,000
| -2% | -$1.1M | 0.47% | 38 |
|
|
2023
Q2 | $69.6M | Sell |
129,369
-10,900
| -8% | -$5.52M | 0.43% | 40 |
|
|
2023
Q1 | $69.7M | Buy |
140,269
+1,600
| +1% | +$785K | 0.46% | 41 |
|
|
2022
Q4 | $63.3M | Buy |
138,669
+1,700
| +1% | +$831K | 0.44% | 40 |
|
|
2022
Q3 | $64.7M | Buy |
136,969
+400
| +0.3% | +$208K | 0.48% | 36 |
|
|
2022
Q2 | $65.5M | Sell |
136,569
-1,000
| -0.7% | -$507K | 0.45% | 39 |
|
|
2022
Q1 | $79.2M | Buy |
137,569
+664
| +0.5% | +$348K | 0.46% | 36 |
|
|
2021
Q4 | $77.7M | Buy |
136,905
+20,100
| +17% | +$10.3M | 0.41% | 43 |
|
|
2021
Q3 | $52.5M | Sell |
116,805
-100
| -0.1% | -$44K | 0.3% | 62 |
|
|
2021
Q2 | $46.3M | Buy |
116,905
+5,800
| +5% | +$2.19M | 0.27% | 86 |
|
|
2021
Q1 | $39.2M | Buy |
111,105
+200
| +0.2% | +$69.6K | 0.25% | 94 |
|
|
2020
Q4 | $41.8M | Sell |
110,905
-1,800
| -2% | -$673K | 0.29% | 83 |
|
|
2020
Q3 | $40M | Sell |
112,705
-100
| -0.1% | -$33.6K | 0.32% | 79 |
|
|
2020
Q2 | $34.2M | Buy |
112,805
+11,569
| +11% | +$3.52M | 0.3% | 84 |
|
|
2020
Q1 | $28.9M | Sell |
101,236
-5,600
| -5% | -$1.7M | 0.32% | 85 |
|
|
2019
Q4 | $31.4M | Buy |
106,836
+1,100
| +1% | +$327K | 0.26% | 99 |
|
|
2019
Q3 | $30.5M | Buy |
105,736
+400
| +0.4% | +$113K | 0.28% | 88 |
|
|
2019
Q2 | $27.8M | Sell |
105,336
-21,600
| -17% | -$5.38M | 0.25% | 96 |
|
|
2019
Q1 | $30.7M | Buy |
126,936
+1,500
| +1% | +$328K | 0.25% | 97 |
|
|
2018
Q4 | $25.6M | Sell |
125,436
-5,200
| -4% | -$1.16M | 0.23% | 99 |
|
|
2018
Q3 | $30.7M | Buy |
130,636
+800
| +0.6% | +$180K | 0.22% | 101 |
|
|
2018
Q2 | $27.1M | Buy |
129,836
+600
| +0.5% | +$119K | 0.21% | 104 |
|
|
2018
Q1 | $24.4M | Buy |
129,236
+1,100
| +0.9% | +$208K | 0.2% | 104 |
|
|
2017
Q4 | $23.8M | Sell |
128,136
-5,000
| -4% | -$863K | 0.19% | 106 |
|
|
2017
Q3 | $21.9M | Sell |
133,136
-11,000
| -8% | -$1.73M | 0.18% | 107 |
|
|
2017
Q2 | $23.1M | Hold |
144,136
| – | – | 0.17% | 108 |
|
|
2017
Q1 | $24.2M | Buy |
144,136
+1,200
| +0.8% | +$201K | 0.19% | 103 |
|
|
2016
Q4 | $22.9M | Sell |
142,936
-9,972
| -7% | -$1.52M | 0.18% | 106 |
|
|
2016
Q3 | $23.3M | Buy |
152,908
+700
| +0.5% | +$113K | 0.18% | 107 |
|
|
2016
Q2 | $23.9M | Buy |
152,208
+800
| +0.5% | +$121K | 0.19% | 104 |
|
|
2016
Q1 | $23.9M | Buy |
151,408
+1,800
| +1% | +$273K | 0.19% | 100 |
|
|
2015
Q4 | $24.2M | Sell |
149,608
-9,100
| -6% | -$1.44M | 0.19% | 101 |
|
|
2015
Q3 | $22.9M | Sell |
158,708
-11,700
| -7% | -$1.67M | 0.18% | 102 |
|
|
2015
Q2 | $23M | Buy |
170,408
+700
| +0.4% | +$101K | 0.16% | 118 |
|
|
2015
Q1 | $25.7M | Sell |
169,708
-10,600
| -6% | -$1.56M | 0.18% | 102 |
|
|
2014
Q4 | $25.6M | Buy |
180,308
+600
| +0.3% | +$81.6K | 0.17% | 109 |
|
|
2014
Q3 | $22.5M | Buy |
179,708
+100
| +0.1% | +$12.1K | 0.16% | 118 |
|
|
2014
Q2 | $20.7M | Buy |
179,608
+100
| +0.1% | +$11.5K | 0.14% | 130 |
|
|
2014
Q1 | $20M | Buy |
179,508
+1,900
| +1% | +$217K | 0.15% | 128 |
|
|
2013
Q4 | $21.1M | Hold |
177,608
| – | – | 0.16% | 120 |
|
|
2013
Q3 | $20.4M | Buy |
177,608
+200
| +0.1% | +$23.1K | 0.18% | 114 |
|
|
2013
Q2 | $19.6M | Buy |
+177,408
| New | +$19.4M | 0.18% | 105 |
|
Other funds holding COST
VCM
VPM
DAM
State of Michigan Retirement System's COST Position: Q1 2026 in Review
State of Michigan Retirement System reduced its Costco (COST) stake by 30% in Q1 2026, selling an estimated $48.8M and leaving 119,669 shares worth $119M. The position accounts for 0.63% of the portfolio, ranked #26.
State of Michigan Retirement System first reported a position in COST in Q2 2013 and has held it in 52 quarters since. The position peaked at $174M in Q2 2025. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.
- State of Michigan Retirement System held 119,669 shares of Costco worth $119M as of Q1 2026.
- State of Michigan Retirement System sold 50,100 Costco shares in Q1 2026, an estimated $48.8M.
- Costco made up 0.63% of State of Michigan Retirement System's portfolio in Q1 2026, its #26 holding.
- State of Michigan Retirement System first reported a position in Costco in Q2 2013 and has held it in 52 quarters since.
- State of Michigan Retirement System's Costco position peaked at $174M in Q2 2025.
- 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.
Based on State of Michigan Retirement System's 13F filing for Q1 2026, filed 4 May 2026.