Israel Englander’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 |
-4,465
| Closed | -$351K | – | 6110 |
|
|
2025
Q4 | $351K | Sell |
4,465
-129,352
| -97% | -$9.84M | ﹤0.01% | 5171 |
|
|
2025
Q3 | $8.97M | Buy |
133,817
+76,107
| +132% | +$5.48M | ﹤0.01% | 2499 |
|
|
2025
Q2 | $5.44M | Buy |
+57,710
| New | +$6.33M | ﹤0.01% | 2897 |
|
|
2025
Q1 | – | Sell |
-4,832
| Closed | -$637K | – | 6198 |
|
|
2024
Q4 | $637K | Buy |
4,832
+1,830
| +61% | +$225K | ﹤0.01% | 4556 |
|
|
2024
Q3 | $390K | Buy |
+3,002
| New | +$353K | ﹤0.01% | 5025 |
|
|
2024
Q2 | – | Sell |
-1,880
| Closed | -$206K | – | 6287 |
|
|
2024
Q1 | $206K | Buy |
+1,880
| New | +$189K | ﹤0.01% | 5363 |
|
|
2023
Q4 | – | Sell |
-5,536
| Closed | -$582K | – | 6357 |
|
|
2023
Q3 | $582K | Buy |
5,536
+1,258
| +29% | +$161K | ﹤0.01% | 4566 |
|
|
2023
Q2 | $550K | Buy |
4,278
+346
| +9% | +$52.7K | ﹤0.01% | 4476 |
|
|
2023
Q1 | $687K | Buy |
3,932
+241
| +7% | +$43.2K | ﹤0.01% | 4404 |
|
|
2022
Q4 | $613K | Sell |
3,691
-462
| -11% | -$72.4K | ﹤0.01% | 4584 |
|
|
2022
Q3 | $585K | Sell |
4,153
-13,259
| -76% | -$2.42M | ﹤0.01% | 4825 |
|
|
2022
Q2 | $3.55M | Buy |
17,412
+6,845
| +65% | +$1.5M | ﹤0.01% | 3139 |
|
|
2022
Q1 | $2.69M | Buy |
10,567
+2,358
| +29% | +$640K | ﹤0.01% | 3597 |
|
|
2021
Q4 | $2.69M | Buy |
8,209
+3,850
| +88% | +$1.21M | ﹤0.01% | 3495 |
|
|
2021
Q3 | $1.32M | Sell |
4,359
-3,004
| -41% | -$854K | ﹤0.01% | 4379 |
|
|
2021
Q2 | $2M | Sell |
7,363
-12,137
| -62% | -$3.08M | ﹤0.01% | 3970 |
|
|
2021
Q1 | $4.75M | Buy |
19,500
+592
| +3% | +$163K | ﹤0.01% | 2622 |
|
|
2020
Q4 | $5.42M | Buy |
18,908
+2,646
| +16% | +$728K | ﹤0.01% | 2362 |
|
|
2020
Q3 | $4.14K | Sell |
16,262
-4,530
| -22% | -$1.08M | 0.01% | 2008 |
|
|
2020
Q2 | $4.51M | Buy |
+20,792
| New | +$4.79M | 0.01% | 1866 |
|
|
2019
Q2 | – | Sell |
-15,405
| Closed | -$3.55M | – | 4314 |
|
|
2019
Q1 | $3.55M | Buy |
15,405
+11,839
| +332% | +$2.68M | 0.01% | 1996 |
|
|
2018
Q4 | $743K | Sell |
3,566
-26,586
| -88% | -$5.18M | ﹤0.01% | 2737 |
|
|
2018
Q3 | $5.6M | Buy |
30,152
+11,734
| +64% | +$2.36M | 0.01% | 1719 |
|
|
2018
Q2 | $3.89M | Buy |
+18,418
| New | +$3.22M | 0.01% | 1964 |
|
|
2017
Q2 | – | Sell |
-2,430
| Closed | -$298K | – | 3696 |
|
|
2017
Q1 | $298K | Buy |
+2,430
| New | +$298K | ﹤0.01% | 3046 |
|
|
2015
Q1 | – | Sell |
-5,400
| Closed | -$417K | – | 3902 |
|
|
2014
Q4 | $417K | Buy |
+5,400
| New | +$395K | ﹤0.01% | 3124 |
|
Other funds holding MLAB
LPP
RIM
RA
Israel Englander's MLAB Position: Q1 2026 in Review
Israel Englander sold out of Mesa Laboratories (MLAB) in Q1 2026, closing a stake of 4,465 shares — an estimated $351K sold.
Israel Englander first reported a position in MLAB in Q4 2014 and held it in 26 quarters. The position peaked at $8.97M in Q3 2025. 161 funds tracked by Wall St. Rank hold MLAB as of Q1 2026.
- Israel Englander reported no remaining Mesa Laboratories position as of Q1 2026 after selling out during the quarter.
- Israel Englander sold 4,465 Mesa Laboratories shares in Q1 2026, an estimated $351K.
- Israel Englander first reported a position in Mesa Laboratories in Q4 2014 and held it in 26 quarters.
- Israel Englander's Mesa Laboratories position peaked at $8.97M in Q3 2025.
- 161 funds tracked by Wall St. Rank held Mesa Laboratories as of Q1 2026.
Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.