What does CUSIP 576323109 represent in this 13F holders report?

CUSIP 576323109 is the security identifier for MTZ - MASTEC INC - Common Stock used to aggregate holder disclosures.

How many institutions held MTZ - MASTEC INC - Common Stock in Q1 2018?

309 institutional investors reported MTZ - MASTEC INC - Common Stock for Q1 2018. Use the holders table for investor-level position and value details.

MASTEC INC - Common Stock (MTZ)

CUSIP: 576323109

Q1 2018 13F Holders as of 31 Mar 2018

Type / Class: Equity / Common Stock
Shares outstanding: 79,148,207
Total 13F shares: 64,706,337
Share change: -752,843
Total reported value: $3,046,989,672
Put/Call ratio: 121%
Price per share: $47.05
Number of holders: 309
Value change: -$38,323,147
Number of buys: 141
Number of sells: 171

Quarterly Holders Quick Answers

What is CUSIP 576323109?
CUSIP 576323109 identifies MTZ - MASTEC INC - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2018
Previous quarter: Q4 2017

Recent filing periods for CUSIP 576323109:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of MTZ - MASTEC INC - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
VANGUARD GROUP INC	13F	Company	7.7%	6,094,415	$298,322,000	—	31 Dec 2017	13F
BlackRock Finance, Inc.	13F	Company	6.1%	4,824,757	$236,171,000	—	31 Dec 2017	13F
PECONIC PARTNERS LLC	13F	Company	5.9%	4,633,036	$226,787,000	—	31 Dec 2017	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	3.9%	3,087,954	$151,158,000	—	31 Dec 2017	13F
MACQUARIE GROUP LTD	13F	Company	3.8%	3,035,973	$148,611,000	—	31 Dec 2017	13F
FRONTIER CAPITAL MANAGEMENT CO LLC	13F	Company	2.1%	1,655,149	$81,020,000	—	31 Dec 2017	13F
STATE STREET CORP	13F	Company	1.7%	1,363,043	$66,726,000	—	31 Dec 2017	13F
LORD, ABBETT & CO. LLC	13F	Company	1.6%	1,245,809	$60,982,000	—	31 Dec 2017	13F
WELLS FARGO & COMPANY/MN	13F	Company	1.5%	1,186,072	$58,058,000	—	31 Dec 2017	13F
GLENMEDE TRUST CO NA	13F	Company	1.5%	1,151,062	$56,343,000	—	31 Dec 2017	13F
Point72 Asset Management, L.P.	13F	Company	1.4%	1,147,401	$56,165,000	—	31 Dec 2017	13F
Hood River Capital Management LLC	13F	Company	1.3%	1,050,314	$51,413,000	—	31 Dec 2017	13F
ROTHSCHILD & CO ASSET MANAGEMENT US INC.	13F	Company	1.2%	948,451	$46,427,000	—	31 Dec 2017	13F
NORTHERN TRUST CORP	13F	Company	1.1%	855,222	$41,863,000	—	31 Dec 2017	13F
WESTFIELD CAPITAL MANAGEMENT CO LP	13F	Company	1.1%	831,675	$40,710,000	—	31 Dec 2017	13F
PRUDENTIAL FINANCIAL INC	13F	Company	1%	806,794	$39,497,000	—	31 Dec 2017	13F
AMERIPRISE FINANCIAL INC	13F	Company	1%	797,117	$38,965,000	—	31 Dec 2017	13F
Sterling Capital Management LLC	13F	Company	1%	790,718	$38,706,000	—	31 Dec 2017	13F
DnB Asset Management AS	13F	Company	0.99%	784,000	$38,376,800	—	31 Dec 2017	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	0.94%	740,476	$36,246,000	—	31 Dec 2017	13F
FORESTERS INVESTMENT MANAGEMENT COMPANY, INC.	13F	Company	0.88%	700,025	$34,266,000	—	31 Dec 2017	13F
Handelsbanken Fonder AB	13F	Company	0.85%	675,000	$33,041,000	—	31 Dec 2017	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.84%	661,000	$32,356,000	—	31 Dec 2017	13F
Alyeska Investment Group, L.P.	13F	Company	0.79%	622,516	$30,472,000	—	31 Dec 2017	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.74%	586,954	$28,731,000	—	31 Dec 2017	13F
TEACHERS ADVISORS, LLC	13F	Company	0.73%	580,043	$28,393,000	—	31 Dec 2017	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.73%	575,710	$28,181,000	—	31 Dec 2017	13F
MORGAN STANLEY	13F	Company	0.7%	555,337	$27,185,000	—	31 Dec 2017	13F
OppenheimerFunds, Inc.	13F	Company	0.69%	548,230	$26,835,000	—	31 Dec 2017	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.67%	528,158	$25,854,000	—	31 Dec 2017	13F
LUMINUS MANAGEMENT LLC	13F	Company	0.65%	517,750	$25,343,000	—	31 Dec 2017	13F
Redwood Investments, LLC	13F	Company	0.65%	514,877	$25,203,000	—	31 Dec 2017	13F
CAXTON ASSOCIATES LP	13F	Company	0.64%	507,605	$24,847,000	—	31 Dec 2017	13F
Cortina Asset Management, LLC	13F	Company	0.6%	476,163	$23,308,000	—	31 Dec 2017	13F
DEUTSCHE BANK AG\	13F	Company	0.6%	472,971	$23,150,000	—	31 Dec 2017	13F
BALYASNY ASSET MANAGEMENT L.P.	13F	Company	0.55%	434,981	$21,292,000	—	31 Dec 2017	13F
Russell Investments Group, Ltd.	13F	Company	0.54%	426,494	$21,176,000	—	31 Dec 2017	13F
MESIROW FINANCIAL INVESTMENT MANAGEMENT - Fixed Income	13F	Company	0.54%	429,697	$21,034,000	—	31 Dec 2017	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.52%	411,613	$20,147,000	—	31 Dec 2017	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.52%	408,742	$20,008,000	—	31 Dec 2017	13F
ACK Asset Management LLC	13F	Company	0.51%	400,000	$19,580,000	—	31 Dec 2017	13F
FIL Ltd	13F	Company	0.49%	391,228	$19,151,000	—	31 Dec 2017	13F
Bank of New York Mellon Corp	13F	Company	0.48%	380,786	$18,640,000	—	31 Dec 2017	13F
BOSTON ADVISORS LLC	13F	Company	0.48%	380,350	$18,618,000	—	31 Dec 2017	13F
NORGES BANK	13F	Company	0.48%	376,323	$18,421,000	—	31 Dec 2017	13F
CITADEL ADVISORS LLC	13F	Company	0.47%	374,989	$18,356,000	—	31 Dec 2017	13F
FRIESS ASSOCIATES LLC	13F	Company	0.45%	358,749	$17,561,000	—	31 Dec 2017	13F
State of New Jersey Common Pension Fund D	13F	Company	0.45%	355,000	$17,377,000	—	31 Dec 2017	13F
KIRR MARBACH & CO LLC /IN/	13F	Company	0.45%	354,848	$17,370,000	—	31 Dec 2017	13F
JPMORGAN CHASE & CO	13F	Company	0.43%	342,468	$16,764,000	—	31 Dec 2017	13F

Institutional Holders of MASTEC INC - Common Stock (MTZ) as of Q1 2018

As of 31 Mar 2018, MASTEC INC - Common Stock (MTZ) was held by 309 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 64,706,337 shares. The largest 10 holders included VANGUARD GROUP INC, BlackRock Inc., PECONIC PARTNERS LLC, MACQUARIE GROUP LTD, DIMENSIONAL FUND ADVISORS LP, LORD, ABBETT & CO. LLC, WELLS FARGO & COMPANY/MN, Boston Partners, FRONTIER CAPITAL MANAGEMENT CO LLC, and STATE STREET CORP. This page lists 309 institutional shareholders reporting positions in this security for the Q1 2018 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2018 vs Q4 2017 Across Filers

Q4 2017 holders

311

Q1 2018 holders

309

Holder diff

-2

Investor	Q4 2017 Shares	Q1 2018 Shares	Share Diff	Share Chg %	Q4 2017 Value $	Q1 2018 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.