MASTEC INC MTZ
COM · Common Stock · CUSIP 576323109 · ISIN US5763231090
Infrastructure and construction company
- SectorIndustrials
- IndustryWater, Sewer, Pipeline, Comm & Power Line Construction
- HeadquartersCoral Gables, FL
- Founded1994
- Websitemastec.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($15.6m this quarter). Holder counts are more reliable. Shares outstanding: 79.2m as of 2024-07-29, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $107.12. Options: 24 managers hold calls ($133.7m notional), 24 hold puts ($124.8m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 338 |
| Q4 2022 | 387 |
| Q1 2023 | 393 |
| Q2 2023 | 394 |
| Q3 2023 | 384 |
| Q4 2023 | 369 |
| Q1 2024 | 382 |
| Q2 2024 | 430 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 195 | 154 |
| Q1 2023 | 167 | 184 |
| Q2 2023 | 153 | 190 |
| Q3 2023 | 172 | 206 |
| Q4 2023 | 169 | 197 |
| Q1 2024 | 177 | 178 |
| Q2 2024 | 214 | 180 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $44.8m | $36.0m | 0.80 |
| Q4 2023 | $133.2m | $99.8m | 0.75 |
| Q1 2024 | $195.5m | $114.6m | 0.59 |
| Q2 2024 | $133.7m | $124.8m | 0.93 |
Biggest buyers
| Pacer Advisors, Inc. | Added | +1.4m |
| D1 Capital Partners L.P. | New | +743.0k |
| CITADEL ADVISORS LLC | Added | +532.7k |
| PECONIC PARTNERS LLC | New | +481.7k |
| Hood River Capital Management LLC | Added | +446.8k |
| BlackRock Inc. | Added | +294.9k |
| Balyasny Asset Management L.P. | Added | +288.9k |
| AQR CAPITAL MANAGEMENT LLC | Added | +255.1k |
| JAT Capital Mgmt LP | New | +206.5k |
| Rokos Capital Management LLP | New | +193.0k |
Biggest sellers
| MORGAN STANLEY | Reduced | -1.1m |
| NORDEA INVESTMENT MANAGEMENT AB | Reduced | -675.3k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -519.4k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -500.3k |
| Point72 Asset Management, L.P. | Reduced | -393.4k |
| SAMLYN CAPITAL, LLC | Reduced | -392.5k |
| COOPER CREEK PARTNERS MANAGEMENT LLC | Reduced | -392.5k |
| Orbis Allan Gray Ltd | Reduced | -389.9k |
| Mirae Asset Global Investments Co., Ltd. | Sold out | -346.6k |
| Electron Capital Partners, LLC | Reduced | -287.7k |
Biggest calls
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $32.1m300.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $17.9m167.1k shares |
| Twin Tree Management, LP | Reduced | $16.6m155.4k shares |
| CITADEL ADVISORS LLC | Reduced | $13.5m126.4k shares |
| Walleye Trading LLC | Added | $11.9m111.3k shares |
| CAPITAL FUND MANAGEMENT S.A. | Reduced | $8.0m75.1k shares |
| BANK OF MONTREAL /CAN/ | Unchanged | $6.0m55.0k shares |
| IMC-Chicago, LLC | Added | $3.4m31.4k shares |
| WOLVERINE TRADING, LLC | Reduced | $3.3m31.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $3.1m28.8k shares |
Biggest puts
| Twin Tree Management, LP | Reduced | $20.5m191.6k shares |
| CITADEL ADVISORS LLC | Reduced | $11.7m109.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $10.8m101.1k shares |
| SG Capital Management LLC | New | $10.7m100.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $9.3m87.4k shares |
| TORNO CAPITAL, LLC | New | $8.6m80.0k shares |
| CAPITAL FUND MANAGEMENT S.A. | Reduced | $8.4m78.5k shares |
| PEAK6 Investments LLC | Reduced | $7.0m65.8k shares |
| Caption Management, LLC | Added | $6.5m60.7k shares |
| SCOPUS ASSET MANAGEMENT, L.P. | New | $6.4m60.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
MAS JORGE
13D · may seek influence
-0.2 pts · filed 2026-08-13
Stated purposeThe purpose of this filing to is report the entry by JM Holdings I on August 10, 2026 into an amendment (the "Fourth Amendment") to the previously reported prepaid variable forward sale contract entered into by JM Holdings I with an unaffiliated party (the "2019 Prepaid Forward Contract," and, as amended to date, the "Prepaid Forward Contract"). The Fourth Amendment amends the Floor Price (as defined below) and Cap Price (as defined below) for each Tranche 1 Component (as defined below), which were determined based on the volume weighted average price (the "VWAP") of MasTec, Inc.'s common stock for a specified period ended on August 11, 2026. The Prepaid Forward Contract provides for the settlement of the transaction, at the option of JM Holdings I, in cash or in Shares. At settlement JM … Full filing |
14.8% |
| BlackRock, Inc. 13G · institution +1.3 pts · filed 2026-07-29 | 8.1% |
MAS JOSE RAMON
13D · may seek influence
-0.1 pts · filed 2026-08-13
Stated purposeThe purpose of this filing to is report entry by Jose Ramon Mas on August 10, 2026 into an amendment (the "Fourth Amendment") to the previously reported prepaid variable forward sale contract entered into by Jose Ramon Mas with an unaffiliated party (the "JR 2019 Prepaid Forward Contract," and, as amended to date, the "Prepaid Forward Contract"). The Fourth Amendment amends the Floor Price (as defined below) and Cap Price (as defined below) for each Tranche 2 Component (as defined below), which were determined based on the volume weighted average price (the "VWAP") of MasTec, Inc.'s common stock for a specified period ended on August 11, 2026. The Prepaid Forward Contract provides for the settlement of the transaction, at the option of Jose Ramon Mas, in cash or in Shares. At settlement J… Full filing |
7.7% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 2 | $173.3k | $173.3k |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 2 | $918.2k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-05-22 | Campbell C Robert Director | Sold | $220.0k2.0k shares |
| 2024-05-14 | Campbell C Robert Director | Sold | $324.0k3.0k shares |
| 2024-05-14 | Palomarez Javier Alberto Director | Sold | $70.2k650 shares |
| 2024-05-13 | Palomarez Javier Alberto Director | Sold | $304.0k2.9k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.01% of their portfolio | 6.0m $644.7m | Added +45.8k |
| BlackRock Inc. 0.01% of their portfolio | 5.8m $624.8m | Added +294.9k |
| NORDEA INVESTMENT MANAGEMENT AB 0.32% of their portfolio | 2.5m $276.3m | Reduced -675.3k |
| ALLIANCEBERNSTEIN L.P. 0.09% of their portfolio | 2.5m $263.1m | Reduced -500.3k |
| Invesco Ltd. 0.05% of their portfolio | 2.3m $249.7m | Added +58.2k |
| Hill City Capital, LP 16.38% of their portfolio | 2.1m $227.9m | Unchanged |
| STATE STREET CORP 0.01% of their portfolio | 1.8m $192.5m | Reduced -967 |
| Allspring Global Investments Holdings, LLC 0.31% of their portfolio | 1.8m $188.7m | Reduced -235.7k |
| CITADEL ADVISORS LLC 0.18% of their portfolio | 1.8m $187.2m | Added +532.7k |
| Electron Capital Partners, LLC 7.88% of their portfolio | 1.4m $153.2m | Reduced -287.7k |
| Pacer Advisors, Inc. 0.33% of their portfolio | 1.4m $146.1m | Added +1.4m |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 1.2m $129.4m | Reduced -170.9k |
| Hood River Capital Management LLC 2.65% of their portfolio | 1.2m $127.8m | Added +446.8k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 1.1m $122.6m | Added +39.4k |
| MACQUARIE GROUP LTD 0.13% of their portfolio | 1.1m $114.0m | Reduced -166.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.0m $108.0m | Added +27.6k |
| Legacy Advisors, LLC 12.93% of their portfolio | 994.1k $106.4m | Reduced -173.3k |
| ACK Asset Management LLC 10.20% of their portfolio | 772.3k $82.6m | Unchanged |
| NORGES BANK 0.01% of their portfolio | 762.8k $81.6m | Added +113.4k |
| Balyasny Asset Management L.P. 0.21% of their portfolio | 757.4k $81.0m | Added +288.9k |
| D1 Capital Partners L.P. 1.34% of their portfolio | 743.0k $79.5m | New |
| MARSHALL WACE, LLP 0.11% of their portfolio | 718.1k $76.8m | Added +29.6k |
| COOPER CREEK PARTNERS MANAGEMENT LLC 2.70% of their portfolio | 691.6k $74.0m | Reduced -392.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 622.8k $66.6m | Added +348 |
| MILLENNIUM MANAGEMENT LLC 0.05% of their portfolio | 609.2k $65.2m | Reduced -519.4k |
| FIRST TRUST ADVISORS LP 0.06% of their portfolio | 523.9k $56.0m | Added +78.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.13% of their portfolio | 501.9k $53.7m | First filing |
| Vontobel Holding Ltd. 0.17% of their portfolio | 500.1k $53.5m | Added +24.8k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 490.2k $52.4m | Added +11.2k |
| Point72 Asset Management, L.P. 0.17% of their portfolio | 484.6k $51.8m | Reduced -393.4k |
| PECONIC PARTNERS LLC 2.21% of their portfolio | 481.7k $51.5m | New |
| NORTHERN TRUST CORP 0.01% of their portfolio | 474.3k $50.7m | Added +85.6k |
| Wolf Hill Capital Management, LP 4.58% of their portfolio | 426.2k $45.6m | Reduced -76.0k |
| MORGAN STANLEY 0.00% of their portfolio | 414.7k $44.4m | Reduced -1.1m |
| MACKENZIE FINANCIAL CORP 0.06% of their portfolio | 387.1k $41.4m | Added +118.0k |
| SAMLYN CAPITAL, LLC 0.71% of their portfolio | 384.7k $41.2m | Reduced -392.5k |
| DNB Asset Management AS 0.19% of their portfolio | 377.4k $40.4m | Reduced -88.3k |
| Orbis Allan Gray Ltd 0.25% of their portfolio | 371.4k $39.7m | Reduced -389.9k |
| FRONTIER CAPITAL MANAGEMENT CO LLC 0.37% of their portfolio | 350.9k $37.5m | Reduced -67.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio | 340.9k $36.5m | Added +115.0k |
| COUNTRY TRUST BANK 0.85% of their portfolio | 313.1k $33.5m | Reduced -6.0k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.04% of their portfolio | 298.7k $32.0m | Reduced -22.5k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio | 298.4k $31.9m | Reduced -46.3k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 288.4k $30.9m | Added +158.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 268.7k $28.8m | Reduced -16.6k |
| AQR CAPITAL MANAGEMENT LLC 0.04% of their portfolio | 262.5k $28.1m | Added +255.1k |
| Assenagon Asset Management S.A. 0.07% of their portfolio | 248.5k $26.6m | Added +123.1k |
| BRUNI J V & CO /CO 3.11% of their portfolio | 233.4k $25.0m | Reduced -5.1k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 222.3k $23.8m | Reduced -5.4k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 209.5k $22.4m | Added +15.4k |
| JAT Capital Mgmt LP 3.46% of their portfolio | 206.5k $22.1m | New |
| Rokos Capital Management LLP 0.48% of their portfolio | 193.0k $20.6m | New |
| COMMUNITY TRUST & INVESTMENT CO 1.32% of their portfolio | 181.3k $19.4m | Reduced -55.9k |
| EDMOND DE ROTHSCHILD HOLDING S.A. 0.33% of their portfolio | 180.0k $19.3m | Reduced -50.0k |
| KIRR MARBACH & CO LLC /IN/ 4.50% of their portfolio | 174.9k $18.7m | Reduced -1.0k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 172.6k $18.5m | Reduced -6.3k |
| Gotham Asset Management, LLC 0.24% of their portfolio | 170.0k $18.2m | Added +43.5k |
| PEAK6 Investments LLC 0.83% of their portfolio | 167.0k $17.9m | Added +25.5k |
| Penn Capital Management Company, LLC 1.68% of their portfolio | 164.6k $17.7m | Reduced -3.4k |
| PINEBRIDGE INVESTMENTS, L.P. 0.14% of their portfolio | 162.3k $17.4m | Added +44.4k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.02% of their portfolio | 158.3k $16.9m | Added +100.4k |
| Appian Way Asset Management LP 4.28% of their portfolio | 155.9k $16.7m | Added +27.2k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 155.3k $16.6m | Added +2.0k |
| Candriam S.C.A. 0.10% of their portfolio | 153.0k $16.4m | Reduced -58.3k |
| UBS Group AG 0.00% of their portfolio | 131.0k $14.0m | Added +76.9k |
| Swiss National Bank 0.01% of their portfolio | 124.8k $13.4m | Added +500 |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.04% of their portfolio | 115.8k $12.4m | Added +14.0k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 1.18% of their portfolio | 113.7k $12.2m | Reduced -148.3k |
| SEI INVESTMENTS CO 0.02% of their portfolio | 111.8k $12.0m | Reduced -29.6k |
| SG Capital Management LLC 1.98% of their portfolio | 109.2k $11.7m | Reduced -40.3k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.05% of their portfolio | 108.4k $11.6m | Added +4.4k |
| California Public Employees Retirement System 0.01% of their portfolio | 106.0k $11.3m | Added +19.2k |
| MUHLENKAMP & CO INC 3.51% of their portfolio | 105.2k $11.3m | Reduced -27.7k |
| SIR Capital Management, L.P. 1.11% of their portfolio | 104.3k $11.2m | Reduced -2.8k |
| SCOPUS ASSET MANAGEMENT, L.P. 0.34% of their portfolio | 102.5k $11.0m | Added +46.0k |
| 1060 Capital, LLC 23.31% of their portfolio | 100.0k $10.7m | New |
| KENNEDY CAPITAL MANAGEMENT LLC 0.22% of their portfolio | 98.0k $10.5m | Reduced -25.8k |
| HSBC HOLDINGS PLC 0.01% of their portfolio | 97.4k $10.5m | Added +73.0k |
| TWO SIGMA ADVISERS, LP 0.02% of their portfolio | 97.1k $10.4m | Reduced -187.2k |
| DECADE RENEWABLE PARTNERS LP 5.01% of their portfolio | 96.0k $10.3m | Added +19.7k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 95.9k $10.3m | Reduced -511 |
| Legal & General Group Plc 0.00% of their portfolio | 95.1k $10.2m | Added +1.2k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.03% of their portfolio | 92.7k $9.9m | Added +6.7k |
| VAN ECK ASSOCIATES CORP 0.01% of their portfolio | 92.7k $9.9m | Reduced -5.6k |
| Moran Wealth Management, LLC 0.32% of their portfolio | 91.9k $9.8m | Reduced -273 |
| ROYCE & ASSOCIATES LP 0.09% of their portfolio | 90.9k $9.7m | Reduced -1.3k |
| Russell Investments Group, Ltd. 0.02% of their portfolio | 88.1k $9.4m | Added +27.7k |
| Corebridge Financial, Inc. 0.05% of their portfolio | 76.9k $8.2m | First filing |
| Retirement Systems of Alabama 0.03% of their portfolio | 75.0k $8.0m | Reduced -912 |
| Shellback Capital, LP 0.59% of their portfolio | 74.9k $8.0m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 73.8k $7.9m | Reduced -9.6k |
| LGT Group Foundation 0.12% of their portfolio | 72.7k $7.8m | Reduced -5.0k |
| TRUIST FINANCIAL CORP 0.01% of their portfolio | 72.3k $7.7m | Reduced -19.4k |
| First Washington CORP 2.55% of their portfolio | 64.4k $6.9m | Added +947 |
| Boston Partners 0.01% of their portfolio | 63.2k $6.8m | Added +55.2k |
| Sagefield Capital LP 0.71% of their portfolio | 63.0k $6.7m | Reduced -29.9k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 62.5k $6.7m | Reduced -1.2k |
| MAKENA CAPITAL MANAGEMENT LLC 1.53% of their portfolio | 61.6k $6.6m | New |
| Dana Investment Advisors, Inc. 0.22% of their portfolio | 61.1k $6.5m | Reduced -1.6k |
| Man Group plc 0.02% of their portfolio | 59.8k $6.4m | Reduced -116.1k |