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MTZ · Mastec Inc · Shareholders & Ownership

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$187.10 -3.81 (-2.00%)
Market Cap
$15.33B
Shares
80.30M
Volume · Oct 20 779.24K Avg daily vol (3M) 1.49M

Every disclosed holder of MTZ in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns MTZ

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions
Holder group Shares % Out
Institutional (13F) 59,521,019 74.12%
Insiders (Forms 3, 4, 5) 17,233,608 21.46%
13D/G-only blocks 0 0.00%
Remaining 3,550,321 4.42%
Registered funds (N-PORT, not summed) 22,667,037 28.23%

Shares outstanding: 80,304,948, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of MTZ

# Holder Shares
1
Jorge Mas
13D CIK 920559 · Unknown · Aug 11, 2026
Item 4 purpose: Other
not summed
11,872,111
1.1
MAS JORGE
Insider CIK 920559 · Mar 18, 2026
Director, issuer-wide
11,447,111
2
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
7,638,487
2.1
BlackRock, Inc.
13G CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
6,400,155
2.2
iShares Core S&P Mid-Cap ETF
Fund S000004307 · Registered fund · Jun 30, 2026
iShares Trust, not summed
2,108,599
2.3
iShares S&P Mid-Cap 400 Growth ETF
Fund S000004308 · Registered fund · Jun 30, 2026
iShares Trust, not summed
368,600
2.4
iShares Russell Mid-Cap Growth ETF
Fund S000004336 · Registered fund · Jun 30, 2026
iShares Trust, not summed
365,746
2.5
iShares Russell Mid-Cap ETF
Fund S000004338 · Registered fund · Jun 30, 2026
iShares Trust, not summed
255,246
3
Jose Ramon Mas
13D CIK 1079760 · Unknown · Aug 11, 2026
not summed
6,185,090
3.1
MAS JOSE RAMON
Insider CIK 1079760 · Mar 18, 2026
Director, CEO, issuer-wide
5,236,149
4
PECONIC PARTNERS LLC
13F CIK 1050464 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,678,431
5
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,831,849
6
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,812,131
7
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,244,771
7.1
State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF
Fund S000006986 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
311,869
7.2
State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF
Fund S000006987 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
95,297
7.3
State Street U.S. Core Equity Fund
Fund S000071466 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
21,969
7.4
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
21,933
7.5
State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF
Fund S000006973 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
11,674
8
Hill City Capital, LP
13F CIK 1837343 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,155,000
9
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,005,979
10
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,449,727
11
LONE PINE CAPITAL LLC
13F CIK 1061165 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,345,157
12
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,335,924
13
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,328,399
13.1
First Trust Large Cap Growth AlphaDEX Fund
Fund S000017341 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
30,888
13.2
First Trust Industrials/Producer Durables AlphaDEX Fund
Fund S000017701 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
19,974
13.3
First Trust Large Cap Core AlphaDEX Fund
Fund S000017337 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
16,932
13.4
First Trust US Equity Opportunities ETF
Fund S000010977 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
12,737
13.5
First Trust Multi Cap Growth AlphaDEX Fund
Fund S000017343 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
6,715
14
JPMORGAN CHASE & CO
13F CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,318,161
15
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,278,139
16
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,241,384
16.1
Invesco S&P MidCap Momentum ETF
Fund S000003056 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
445,445
16.2
Invesco Discovery Mid Cap Growth Fund
Fund S000064710 · Registered fund · Jul 31, 2026
AIM Investment Funds (Invesco Investment Funds), not summed
381,059
16.3
Invesco Global Opportunities Fund
Fund S000064625 · Registered fund · Jul 31, 2026
AIM International Mutual Funds (Invesco International Mutual Funds), not summed
69,497
16.4
Invesco Summit Fund
Fund S000022173 · Registered fund · Jul 31, 2026
AIM Equity Funds (Invesco Equity Funds), not summed
64,800
16.5
Invesco V.I. Discovery Mid Cap Growth Fund
Fund S000064658 · Registered fund · Jun 30, 2026
AIM Variable Insurance Funds (Invesco Variable Insurance Funds), not summed
41,309
17
VICTORY CAPITAL MANAGEMENT INC
13F CIK 1040188 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,210,079
17.1
Victory Pioneer Fund
Fund S000089764 · Registered fund · Jun 30, 2026
Victory Portfolios IV, not summed
381,846
17.2
Victory Pioneer Multi-Asset Income Fund
Fund S000089756 · Registered fund · Jul 31, 2026
Victory Portfolios IV, not summed
66,280
17.3
Victory Pioneer Global Equity Fund
Fund S000089821 · Registered fund · May 31, 2026
Victory Portfolios IV, not summed
17,573
17.4
Victory 500 Index Fund
Fund S000012915 · Registered fund · Jul 31, 2026
Victory Portfolios III, not summed
14,429
17.5
Victory Pioneer Fund VCT Portfolio
Fund S000089718 · Registered fund · Jun 30, 2026
Victory Variable Insurance Funds II, not summed
6,663
18
Hood River Capital Management LLC
13F CIK 1578177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,173,918
18.1
Hood River Small-Cap Growth Fund
Fund S000012813 · Registered fund · Jun 30, 2026
Manager Directed Portfolios, not summed
617,749
18.2
Hood River New Opportunities Fund
Fund S000086255 · Registered fund · Jun 30, 2026
Manager Directed Portfolios, not summed
76,407
19
First Trust RBA American Industrial Renaissance ETF
Fund S000044209 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund VI, not summed
1,155,249
20
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
890,103
20.1
Fidelity Extended Market Index Fund
Fund S000006021 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
316,447
20.2
Fidelity Mid Cap Index Fund
Fund S000033637 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
234,926
20.3
VIP Mid Cap Portfolio
Fund S000007734 · Registered fund · Jun 30, 2026
Variable Insurance Products Fund III, not summed
211,500
20.4
Fidelity Trend Fund
Fund S000007496 · Registered fund · Jun 30, 2026
Fidelity Trend Fund, not summed
133,637
20.5
Fidelity Growth Strategies Fund
Fund S000007118 · Registered fund · May 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
127,479
21
VANGUARD SMALL-CAP GROWTH INDEX FUND
Fund S000002846 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
836,067
22
AMERIPRISE FINANCIAL INC
13F CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
734,976
22.1
Columbia Cornerstone Growth Fund
Fund S000012081 · Registered fund · Jul 31, 2026
COLUMBIA FUNDS SERIES TRUST I, not summed
170,539
22.2
Columbia Acorn Fund
Fund S000009184 · Registered fund · Jun 30, 2026
COLUMBIA ACORN TRUST, not summed
104,388
22.3
Columbia Variable Portfolio - Cornerstone Growth Fund
Fund S000019840 · Registered fund · Jun 30, 2026
Columbia Funds Variable Series Trust II, not summed
88,895
22.4
Columbia Variable Portfolio - Cornerstone Equity Fund
Fund S000060079 · Registered fund · Jun 30, 2026
Columbia Funds Variable Series Trust II, not summed
46,407
22.5
Columbia Mid Cap Index Fund
Fund S000010826 · Registered fund · May 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
43,811
23
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
706,626
24
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
674,288
24.1
BNY Mellon US Large Cap Core Equity ETF
Fund S000067260 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
5,438
25
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
13F CIK 1705339 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
660,440
25.1
Global X U.S. Infrastructure Development ETF
Fund S000056509 · Registered fund · May 31, 2026
GLOBAL X FUNDS, not summed
578,777
25.2
Global X U.S. Electrification ETF
Fund S000089023 · Registered fund · Jul 31, 2026
GLOBAL X FUNDS, not summed
28,387
25.3
Global X Guru Index ETF
Fund S000037879 · Registered fund · Jul 31, 2026
GLOBAL X FUNDS, not summed
1,731
25.4
Global X Adaptive U.S. Risk Management ETF
Fund S000070582 · Registered fund · May 31, 2026
GLOBAL X FUNDS, not summed
128
25.5
Global X U.S. 500 ETF
Fund S000094852 · Registered fund · May 31, 2026
GLOBAL X FUNDS, not summed
4
26
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
657,603
27
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
653,503
27.1
E*TRADE No Fee Large Cap Index Fund
Fund S000090720 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
145
27.2
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
100
28
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
636,286
28.1
Dimensional U.S. Core Equity 2 ETF
Fund S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
106,029
28.2
U.S. CORE EQUITY 1 PORTFOLIO
Fund S000000979 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
98,161
28.3
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
97,594
28.4
THE U.S. LARGE CAP VALUE SERIES
Fund S000000993 · Registered fund · Jul 31, 2026
DFA INVESTMENT TRUST CO, not summed
26,730
28.5
Dimensional U.S. Equity Market ETF
Fund S000070902 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
18,677
29
Electron Capital Partners, LLC
13F CIK 1586986 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
620,190
30
CANADA PENSION PLAN INVESTMENT BOARD
13F CIK 1283718 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
619,910
31
T. Rowe Price Investment Management, Inc.
13F CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
593,724
32
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
551,319
32.1
Schwab U.S. Mid-Cap ETF
Fund S000026635 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
165,859
32.2
Schwab U.S. Large-Cap Growth ETF
Fund S000026633 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
129,243
32.3
Schwab U.S. Large-Cap ETF
Fund S000026632 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
65,269
32.4
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
37,581
32.5
Schwab U.S. Broad Market ETF
Fund S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
36,175
33
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
542,636
33.1
Goldman Sachs U.S. Tax-Managed Equity Fund
Fund S000009340 · Registered fund · Jun 30, 2026
Goldman Sachs Trust, not summed
53,098
33.2
Goldman Sachs ActiveBeta(R) U.S. Large Cap Equity ETF
Fund S000048295 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
28,836
33.3
Goldman Sachs Hedge Industry VIP ETF
Fund S000053625 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
26,191
33.4
Goldman Sachs Equal Weight U.S. Large Cap Equity ETF
Fund S000058070 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
8,070
33.5
Goldman Sachs Small/Mid Cap Equity Fund
Fund S000044015 · Registered fund · May 31, 2026
Goldman Sachs Trust, not summed
4,849
34
NORDEA INVESTMENT MANAGEMENT AB
13F CIK 1218210 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
529,463
35
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
517,643
35.1
Mid Cap Index Fund
Fund S000001273 · Registered fund · Jun 30, 2026
Northern Funds, not summed
40,051
35.2
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
1,135
36
COATUE MANAGEMENT LLC
13F CIK 1135730 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
517,250
37
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
509,843
38
State Street SPDR S&P MidCap 400SM ETF Trust
Fund · Registered fund · Jun 30, 2026
SPDR S&P MIDCAP 400 ETF TRUST, not summed
474,063
38.1
NXG NextGen Infrastructure Income Fund
Fund · Registered fund · May 31, 2026
NXG NextGen Infrastructure Income Fund, not summed
58,000
38.2
Tortoise Energy Infrastructure Corp
Fund · Registered fund · May 31, 2026
Tortoise Energy Infrastructure Corp, not summed
33,878
38.3
NXG Cushing Midstream Energy Fund
Fund · Registered fund · May 31, 2026
NXG Cushing Midstream Energy Fund, not summed
24,800
38.4
Nuveen S&P 500 Dynamic Overwrite Fund
Fund · Registered fund · Jun 30, 2026
Nuveen S&P 500 Dynamic Overwrite Fund, not summed
16,307
38.5
Brookfield Real Assets Income Fund Inc.
Fund · Registered fund · Jun 30, 2026
Brookfield Real Assets Income Fund Inc., not summed
297
39
BNP PARIBAS ARBITRAGE, SA
13F CIK 1166588 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
436,602
40
Qube Research & Technologies Ltd
13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
409,202
41
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F CIK 861177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
403,709
41.1
PACE Alternative Strategies Investments
Fund S000006035 · Registered fund · Jul 31, 2026
PACE SELECT ADVISORS TRUST, not summed
3,759
42
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
399,194
43
Amundi
13F CIK 1330387 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
399,102
44
WESTFIELD CAPITAL MANAGEMENT CO LP
13F CIK 1177719 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
374,457
45
JPMorgan Mid Cap Growth Fund
Fund S000003654 · Registered fund · Jun 30, 2026
JPMorgan Trust II, not summed
355,310
46
JPMorgan Growth Advantage Fund
Fund S000004474 · Registered fund · Jun 30, 2026
J.P. Morgan Mutual Fund Investment Trust, not summed
333,962
47
Anomaly Capital Management, LP
13F CIK 1817534 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
306,921
48
Third Point LLC
13F CIK 1040273 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
290,000
49
PRICE T ROWE ASSOCIATES INC /MD/
13F CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
282,436
49.1
T. Rowe Price Mid-Cap Growth Fund, Inc.
Fund S000002102 · Registered fund · Jun 30, 2026
T. ROWE PRICE MID-CAP GROWTH FUND, INC., not summed
314,801
49.2
T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.
Fund S000002073 · Registered fund · Jun 30, 2026
T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC., not summed
85,300
49.3
T. Rowe Price Institutional Mid-Cap Equity Growth Fund
Fund S000002092 · Registered fund · Jun 30, 2026
T. Rowe Price Equity Funds, Inc., not summed
34,424
49.4
T. Rowe Price Extended Equity Market Index Fund
Fund S000002090 · Registered fund · Jun 30, 2026
T. ROWE PRICE INDEX TRUST, INC., not summed
8,418
49.5
T. Rowe Price Mid-Cap Growth Portfolio
Fund S000002080 · Registered fund · Jun 30, 2026
T. ROWE PRICE EQUITY SERIES, INC., not summed
5,889
50
140 Summer Partners LP
13F CIK 1820788 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
268,168

140 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 1,109 holders

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Key facts CIK 15615 CUSIP 576323109 13F (30d) 97 filings 94 filers Visit website Investor relations