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State of Michigan Retirement System’s iShares MBS ETF MBB Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$56.3M Hold
600,000
0.29% 58
2025
Q1
$56.3M Hold
600,000
0.32% 55
2024
Q4
$55M Hold
600,000
0.29% 56
2024
Q3
$57.5M Hold
600,000
0.29% 54
2024
Q2
$55.1M Sell
600,000
-965,800
-62% -$88.7M 0.28% 57
2024
Q1
$145M Buy
1,565,800
+1,025,000
+190% +$94.7M 0.78% 21
2023
Q4
$50.9M Hold
540,800
0.3% 60
2023
Q3
$48M Hold
540,800
0.31% 57
2023
Q2
$50.4M Buy
540,800
+315,000
+140% +$29.4M 0.31% 58
2023
Q1
$21.4M Hold
225,800
0.14% 137
2022
Q4
$20.9M Hold
225,800
0.15% 131
2022
Q3
$20.7M Hold
225,800
0.15% 118
2022
Q2
$22M Hold
225,800
0.15% 116
2022
Q1
$23M Hold
225,800
0.13% 121
2021
Q4
$24.3M Hold
225,800
0.13% 130
2021
Q3
$24.4M Hold
225,800
0.14% 116
2021
Q2
$24.4M Hold
225,800
0.14% 141
2021
Q1
$24.5M Sell
225,800
-229,200
-50% -$24.8M 0.15% 134
2020
Q4
$50.1M Buy
+455,000
New +$50.1M 0.34% 70