Jane Street’s MasTec MTZ Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $30.9M | Buy |
96,000
+69,200
| +258% | +$18.7M | ﹤0.01% | 1414 |
|
|
2025
Q4 | $5.83M | Sell |
26,800
-22,600
| -46% | -$4.74M | ﹤0.01% | 3006 |
|
|
2025
Q3 | $10.5M | Buy |
49,400
+3,200
| +7% | +$586K | ﹤0.01% | 2357 |
|
|
2025
Q2 | $7.87M | Buy |
46,200
+18,400
| +66% | +$2.65M | ﹤0.01% | 2440 |
|
|
2025
Q1 | $3.24M | Sell |
27,800
-5,300
| -16% | -$715K | ﹤0.01% | 3601 |
|
|
2024
Q4 | $4.51M | Sell |
33,100
-6,800
| -17% | -$912K | ﹤0.01% | 2807 |
|
|
2024
Q3 | $4.91M | Buy |
39,900
+23,900
| +149% | +$2.61M | ﹤0.01% | 2895 |
|
|
2024
Q2 | $1.71M | Sell |
16,000
-9,500
| -37% | -$960K | ﹤0.01% | 4766 |
|
|
2024
Q1 | $2.38M | Buy |
25,500
+11,100
| +77% | +$844K | ﹤0.01% | 3822 |
|
|
2023
Q4 | $1.09M | Buy |
14,400
+3,100
| +27% | +$194K | ﹤0.01% | 5409 |
|
|
2023
Q3 | $813K | Sell |
11,300
-4,400
| -28% | -$439K | ﹤0.01% | 5501 |
|
|
2023
Q2 | $1.85M | Sell |
15,700
-15,500
| -50% | -$1.52M | ﹤0.01% | 4278 |
|
|
2023
Q1 | $2.95M | Buy |
31,200
+18,500
| +146% | +$1.76M | ﹤0.01% | 3175 |
|
|
2022
Q4 | $1.08M | Buy |
12,700
+1,400
| +12% | +$115K | ﹤0.01% | 4865 |
|
|
2022
Q3 | $718K | Buy |
11,300
+1,100
| +11% | +$85.1K | ﹤0.01% | 6026 |
|
|
2022
Q2 | $731K | Sell |
10,200
-2,700
| -21% | -$210K | ﹤0.01% | 6048 |
|
|
2022
Q1 | $1.12M | Buy |
12,900
+3,900
| +43% | +$341K | ﹤0.01% | 5891 |
|
|
2021
Q4 | $831K | Sell |
9,000
-29,000
| -76% | -$2.65M | ﹤0.01% | 6279 |
|
|
2021
Q3 | $3.28M | Sell |
38,000
-1,500
| -4% | -$142K | ﹤0.01% | 3494 |
|
|
2021
Q2 | $4.19M | Buy |
39,500
+12,700
| +47% | +$1.38M | ﹤0.01% | 2964 |
|
|
2021
Q1 | $2.51M | Sell |
26,800
-3,200
| -11% | -$274K | ﹤0.01% | 3596 |
|
|
2020
Q4 | $2.04M | Sell |
30,000
-4,100
| -12% | -$230K | ﹤0.01% | 3446 |
|
|
2020
Q3 | $1.44M | Buy |
34,100
+13,600
| +66% | +$585K | ﹤0.01% | 3524 |
|
|
2020
Q2 | $920K | Sell |
20,500
-7,500
| -27% | -$284K | ﹤0.01% | 4182 |
|
|
2020
Q1 | $916K | Buy |
28,000
+24,700
| +748% | +$1.26M | ﹤0.01% | 2896 |
|
|
2019
Q4 | $212K | Sell |
3,300
-3,500
| -51% | -$230K | ﹤0.01% | 4669 |
|
|
2019
Q3 | $442K | Buy |
+6,800
| New | +$397K | ﹤0.01% | 3693 |
|
|
2018
Q4 | – | Sell |
-141,000
| Closed | -$6.3M | – | 5430 |
|
|
2018
Q3 | $6.3M | Buy |
+141,000
| New | +$6.53M | 0.01% | 886 |
|
|
2018
Q2 | – | Sell |
-46,400
| Closed | -$2.18M | – | 5380 |
|
|
2018
Q1 | $2.18M | Buy |
46,400
+38,100
| +459% | +$1.93M | 0.01% | 1748 |
|
|
2017
Q4 | $406K | Buy |
8,300
+1,000
| +14% | +$44.6K | ﹤0.01% | 3424 |
|
|
2017
Q3 | $339K | Sell |
7,300
-7,800
| -52% | -$340K | ﹤0.01% | 3541 |
|
|
2017
Q2 | $682K | Buy |
15,100
+7,100
| +89% | +$307K | ﹤0.01% | 2644 |
|
|
2017
Q1 | $320K | Buy |
+8,000
| New | +$306K | ﹤0.01% | 3357 |
|
|
2016
Q3 | – | Sell |
-10,200
| Closed | -$228K | – | 4339 |
|
|
2016
Q2 | $228K | Buy |
+10,200
| New | +$226K | ﹤0.01% | 3608 |
|
Other funds holding MTZ
PP
VCM
VPM
HCC
LPC
Jane Street's MTZ Position: Q1 2026 in Review
Jane Street increased its MasTec (MTZ) stake by 2,537% in Q1 2026, buying an estimated $24.5M and bringing the position to 93,956 shares worth $30.2M. The position accounts for ﹤0.01% of the portfolio, ranked #1435.
Jane Street first reported a position in MTZ in Q3 2015 and has held it in 40 quarters since. The position peaked at $41.6M in Q2 2025. 806 funds tracked by Wall St. Rank hold MTZ as of Q1 2026.
- Jane Street held 93,956 shares of MasTec worth $30.2M as of Q1 2026.
- Jane Street bought 90,393 MasTec shares in Q1 2026, an estimated $24.5M.
- MasTec made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #1435 holding.
- Jane Street first reported a position in MasTec in Q3 2015 and has held it in 40 quarters since.
- Jane Street's MasTec position peaked at $41.6M in Q2 2025.
- 806 funds tracked by Wall St. Rank held MasTec as of Q1 2026.
Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.