Jane Street’s Mesa Laboratories MLAB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-56,371
Closed -$4.43M 12610
2025
Q4
$4.43M Buy
56,371
+18,144
+47% +$1.38M 0.01% 3425
2025
Q3
$2.56M Buy
38,227
+24,442
+177% +$1.76M ﹤0.01% 4480
2025
Q2
$1.3M Buy
13,785
+6,766
+96% +$743K ﹤0.01% 5139
2025
Q1
$833K Sell
7,019
-27,380
-80% -$3.73M ﹤0.01% 5912
2024
Q4
$4.54M Buy
34,399
+32,091
+1,390% +$3.94M 0.01% 2799
2024
Q3
$300K Sell
2,308
-20,134
-90% -$2.37M ﹤0.01% 8040
2024
Q2
$1.95M Buy
+22,442
New +$2.35M ﹤0.01% 4527
2023
Q4
Sell
-3,216
Closed -$338K 9575
2023
Q3
$338K Sell
3,216
-3,238
-50% -$415K ﹤0.01% 6892
2023
Q2
$829K Buy
6,454
+1,360
+27% +$207K ﹤0.01% 5523
2023
Q1
$890K Buy
5,094
+3,430
+206% +$615K ﹤0.01% 5220
2022
Q4
$277K Sell
1,664
-1,983
-54% -$311K ﹤0.01% 7152
2022
Q3
$514K Buy
3,647
+1,562
+75% +$285K ﹤0.01% 6647
2022
Q2
$425K Buy
+2,085
New +$457K ﹤0.01% 7022
2021
Q4
Sell
-1,058
Closed -$320K 10608
2021
Q3
$320K Buy
+1,058
New +$301K ﹤0.01% 8057
2021
Q2
Sell
-9,620
Closed -$2.34M 10214
2021
Q1
$2.34M Buy
9,620
+7,118
+284% +$1.96M 0.01% 3715
2020
Q4
$717K Buy
+2,502
New +$688K ﹤0.01% 5188
2020
Q3
Sell
-1,627
Closed -$353K 7672
2020
Q2
$353K Buy
+1,627
New +$375K ﹤0.01% 5597

Other funds holding MLAB