Mastec Inc (MTZ) Insider Ownership

Historic Insider Ownership Trends

Mastec's three largest insider shareholders as of June 09, 2026 are Jorge Mas (Director, 4.56Mn shares), Jose Ramon Mas (Ceo, 3.25Mn shares), Robert E Apple (Coo, 183.59K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Jorge Mas - 4,556,686 0 20 Mar, 2026
Jose Ramon Mas Ceo 3,254,461 0 20 Mar, 2026
Julia L Johnson - 73,240 0 18 Feb, 2026
George Pita Cfo 156,475 0 21 Mar, 2023
Robert J Dwyer - 20,778 0 18 Feb, 2026
C Robert Campbell Evp Cfo 33,646 0 18 Feb, 2026
Ernst N Csiszar - 17,235 0 05 Mar, 2026
Timothy Michael Love Cao 10,292 0 17 Apr, 2026
Robert E Apple Coo 183,591 0 20 Mar, 2026
Javier Alberto Palomarez - 10,592 0 27 Mar, 2026
Paul Dimarco Cfo 66,627 0 20 Mar, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
17 Mar, 2026 Timothy Michael Love Common Stock A 492 $0.00 10,292 D A
25 Mar, 2026 Javier Alberto Palomarez Common Stock D 950 $325.43 10,592 D S
25 Mar, 2026 Javier Alberto Palomarez Common Stock D 950 $325.43 10,592 D S
25 Mar, 2026 Javier Alberto Palomarez Common Stock D 950 $325.43 10,592 D S
18 Mar, 2026 Jose Ramon Mas Common Stock A 26,397 $0.00 3,254,461 D A
18 Mar, 2026 Jorge Mas Common Stock A 15,838 $0.00 4,556,686 D A
18 Mar, 2026 Paul Dimarco Common Stock A 9,074 $0.00 66,627 D A
18 Mar, 2026 Robert E Apple Common Stock A 11,548 $0.00 183,591 D A
10 Mar, 2026 Robert E Apple Common Stock D 12,206 $297.81 172,043 D F
10 Mar, 2026 Jorge Mas Common Stock D 15,958 $297.81 4,540,848 D F
10 Mar, 2026 Jose Ramon Mas Common Stock D 28,184 $297.81 3,228,064 D F
03 Mar, 2026 Ernst N Csiszar Common Stock D 6,500 $300.40 17,235 D S
13 Feb, 2026 Javier Alberto Palomarez Common Stock A 154 $0.00 11,576 D A
13 Feb, 2026 Ernst N Csiszar Common Stock A 168 $0.00 23,772 D A
13 Feb, 2026 Javier Alberto Palomarez Common Stock A 154 $0.00 11,576 D A
13 Feb, 2026 Robert J Dwyer Common Stock A 154 $0.00 20,812 D A
13 Feb, 2026 Julia L Johnson Common Stock A 154 $0.00 73,240 D A
13 Feb, 2026 Javier Alberto Palomarez Common Stock A 154 $0.00 11,576 D A
13 Feb, 2026 C Robert Campbell Common Stock A 154 $0.00 33,646 D A
13 Feb, 2026 Ernst N Csiszar Common Stock D 37 $269.53 23,735 D F