MTZ
insider transactionsMASTEC INC — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-16.9K
0 buy · 16.9K sell
Net value · 365d
-$5.9M
$0 in · $5.9M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
4
0 buy · 16.9K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Sell·S
Director
$2.4M
6.5K sh · $371.17
Own -38%
-
Other·F
Director
$6.1K
14 sh · $434.77
Own -0%
-
Grant·A
Director
$0
121 sh
Own +2%
-
Other·F
Director
$9.1K
21 sh · $434.77
Own -0%
-
Grant·A
Director
$0
95 sh
Own +1%
-
Grant·A
Director
$0
95 sh
Own +0%
-
Other·F
Director
$9.1K
21 sh · $434.77
Own -0%
-
Grant·A
Director
$0
95 sh
Own +0%
-
Other·F
Director
$10.0K
23 sh · $434.77
Own -0%
-
Grant·A
Director
$0
104 sh
Own +1%
-
Grant·A
Director
$0
95 sh
Own +0%
-
Sell·S
Director
$1.3M
3.0K sh · $417.00
Own -9%
-
Sell·S
Director
$309.2K
950 sh · $325.43
Own -8%
-
Grant·A
EVP, General Counsel
$0
6.3K sh
Own +6%
-
Grant·A
Jose Ramon Mas KEY
CEO
$0
26.4K sh
Own +1%
-
Grant·A
Director
$0
15.8K sh
Own +0%
-
Grant·A
Paul Dimarco KEY
CFO
$0
9.1K sh
Own +16%
-
Grant·A
COO
$0
11.5K sh
Own +7%
-
Grant·A
$0
492 sh
Own +5%
-
Other·F
EVP, General Counsel
$1.4M
4.8K sh · $297.81
Own -5%
-
Other·F
Jose Ramon Mas KEY
CEO
$8.4M
28.2K sh · $297.81
Own -1%
-
Other·F
Director
$4.8M
16.0K sh · $297.81
Own -0%
-
Other·F
COO
$3.6M
12.2K sh · $297.81
Own -7%
-
Sell·S
Director
$2.0M
6.5K sh · $300.40
Own -27%
-
Other·F
Director
$9.2K
34 sh · $269.53
Own -0%
-
Grant·A
Director
$0
154 sh
Own +1%
-
Other·F
Director
$5.9K
22 sh · $269.53
Own -0%
-
Grant·A
Director
$0
195 sh
Own +4%
-
Grant·A
Director
$0
154 sh
Own +0%
-
Other·F
Director
$9.2K
34 sh · $269.53
Own -0%
-
Grant·A
Director
$0
154 sh
Own +1%
-
Other·F
Director
$10.0K
37 sh · $269.53
Own -0%
-
Grant·A
Director
$0
168 sh
Own +1%
-
Grant·A
Director
$0
154 sh
Own +0%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 3, 2026 | Ernst N Csiszar | Sell S | 6.5K | $2.4M |
| May 15, 2026 | Ava L Parker | Other F | 14 | $6.1K |
| May 15, 2026 | Ava L Parker | Grant A | 121 | $0 |
| May 15, 2026 | Javier Alberto Palomarez | Other F | 21 | $9.1K |
| May 15, 2026 | Javier Alberto Palomarez | Grant A | 95 | $0 |
| May 15, 2026 | Julia L Johnson | Grant A | 95 | $0 |
| May 15, 2026 | Robert J Dwyer | Other F | 21 | $9.1K |
| May 15, 2026 | Robert J Dwyer | Grant A | 95 | $0 |
| May 15, 2026 | Ernst N Csiszar | Other F | 23 | $10.0K |
| May 15, 2026 | Ernst N Csiszar | Grant A | 104 | $0 |
| May 15, 2026 | Robert C Campbell | Grant A | 95 | $0 |
| May 4, 2026 | Robert C Campbell | Sell S | 3.0K | $1.3M |
| Mar 25, 2026 | Javier Alberto Palomarez | Sell S | 950 | $309.2K |
| Mar 18, 2026 | Alberto De Cardenas | Grant A | 6.3K | $0 |
| Mar 18, 2026 | Jose Ramon Mas KEY | Grant A | 26.4K | $0 |
| Mar 18, 2026 | MAS JORGE | Grant A | 15.8K | $0 |
| Mar 18, 2026 | Paul Dimarco KEY | Grant A | 9.1K | $0 |
| Mar 18, 2026 | Robert E Apple | Grant A | 11.5K | $0 |
| Mar 17, 2026 | Timothy Michael Love | Grant A | 492 | $0 |
| Mar 10, 2026 | Alberto De Cardenas | Other F | 4.8K | $1.4M |
| Mar 10, 2026 | Jose Ramon Mas KEY | Other F | 28.2K | $8.4M |
| Mar 10, 2026 | MAS JORGE | Other F | 16.0K | $4.8M |
| Mar 10, 2026 | Robert E Apple | Other F | 12.2K | $3.6M |
| Mar 3, 2026 | Ernst N Csiszar | Sell S | 6.5K | $2.0M |
| Feb 13, 2026 | Javier Alberto Palomarez | Other F | 34 | $9.2K |
| Feb 13, 2026 | Javier Alberto Palomarez | Grant A | 154 | $0 |
| Feb 13, 2026 | Ava L Parker | Other F | 22 | $5.9K |
| Feb 13, 2026 | Ava L Parker | Grant A | 195 | $0 |
| Feb 13, 2026 | Julia L Johnson | Grant A | 154 | $0 |
| Feb 13, 2026 | Robert J Dwyer | Other F | 34 | $9.2K |
| Feb 13, 2026 | Robert J Dwyer | Grant A | 154 | $0 |
| Feb 13, 2026 | Ernst N Csiszar | Other F | 37 | $10.0K |
| Feb 13, 2026 | Ernst N Csiszar | Grant A | 168 | $0 |
| Feb 13, 2026 | Robert C Campbell | Grant A | 154 | $0 |
About MTZ insider trading
This page tracks insider transactions for MASTEC INC (MTZ) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.