MCM
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Mattern Capital Management’s Blackrock BLK Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$10.6M Buy
10,080
+62
+0.6% +$65.1K 1.27% 18
2025
Q1
$9.48M Sell
10,018
-554
-5% -$524K 1.21% 29
2024
Q4
$10.8M Sell
10,572
-569
-5% -$583K 1.41% 11
2024
Q3
$10.6M Sell
11,141
-52
-0.5% -$49.4K 1.33% 24
2024
Q2
$8.81M Sell
11,193
-21
-0.2% -$16.5K 1.22% 30
2024
Q1
$9.35M Buy
11,214
+9
+0.1% +$7.5K 1.27% 27
2023
Q4
$9.1M Buy
11,205
+194
+2% +$157K 1.32% 23
2023
Q3
$7.12M Buy
11,011
+584
+6% +$378K 1.15% 40
2023
Q2
$7.21M Buy
10,427
+380
+4% +$263K 1.17% 30
2023
Q1
$6.72M Buy
10,047
+472
+5% +$316K 1.19% 32
2022
Q4
$6.79M Buy
9,575
+11
+0.1% +$7.8K 1.25% 21
2022
Q3
$5.26M Sell
9,564
-90
-0.9% -$49.5K 1.1% 48
2022
Q2
$5.88M Buy
9,654
+588
+6% +$358K 1.16% 42
2022
Q1
$6.93M Buy
9,066
+497
+6% +$380K 1.24% 26
2021
Q4
$7.85M Sell
8,569
-93
-1% -$85.1K 1.37% 13
2021
Q3
$7.26M Sell
8,662
-42
-0.5% -$35.2K 1.43% 8
2021
Q2
$7.62M Buy
8,704
+128
+1% +$112K 1.51% 7
2021
Q1
$6.47M Sell
8,576
-24
-0.3% -$18.1K 1.4% 9
2020
Q4
$6.21M Sell
8,600
-37
-0.4% -$26.7K 1.47% 9
2020
Q3
$4.87M Sell
8,637
-25
-0.3% -$14.1K 1.27% 25
2020
Q2
$4.71M Buy
8,662
+590
+7% +$321K 1.37% 11
2020
Q1
$3.55M Buy
8,072
+91
+1% +$40K 1.21% 27
2019
Q4
$4.01M Buy
+7,981
New +$4.01M 1.11% 42