Jane Street’s Mesa Laboratories MLAB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$1.3M Buy
13,785
+6,766
+96% +$637K ﹤0.01% 2562
2025
Q1
$833K Sell
7,019
-27,380
-80% -$3.25M ﹤0.01% 3284
2024
Q4
$4.54M Buy
34,399
+32,091
+1,390% +$4.23M ﹤0.01% 1231
2024
Q3
$300K Sell
2,308
-20,134
-90% -$2.61M ﹤0.01% 4863
2024
Q2
$1.95M Buy
+22,442
New +$1.95M ﹤0.01% 2767
2023
Q4
Sell
-3,216
Closed -$338K 5957
2023
Q3
$338K Sell
3,216
-3,238
-50% -$340K ﹤0.01% 3969
2023
Q2
$829K Buy
6,454
+1,360
+27% +$175K ﹤0.01% 3252
2023
Q1
$890K Buy
5,094
+3,430
+206% +$599K ﹤0.01% 2961
2022
Q4
$277K Sell
1,664
-1,983
-54% -$330K ﹤0.01% 4045
2022
Q3
$514K Buy
3,647
+1,562
+75% +$220K ﹤0.01% 3577
2022
Q2
$425K Buy
+2,085
New +$425K ﹤0.01% 3728
2021
Q4
Sell
-1,058
Closed -$320K 5717
2021
Q3
$320K Buy
+1,058
New +$320K ﹤0.01% 3881
2021
Q2
Sell
-9,620
Closed -$2.34M 5540
2021
Q1
$2.34M Buy
9,620
+7,118
+284% +$1.73M ﹤0.01% 1469
2020
Q4
$717K Buy
+2,502
New +$717K ﹤0.01% 2419
2020
Q3
Sell
-1,627
Closed -$353K 4179
2020
Q2
$353K Buy
+1,627
New +$353K ﹤0.01% 2881