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 Q4 2018?

293 institutional investors reported MTZ - MASTEC INC - Common Stock for Q4 2018. Use the holders table for investor-level position and value details.

MASTEC INC - Common Stock (MTZ)

CUSIP: 576323109

Q4 2018 13F Holders as of 31 Dec 2018

Type / Class: Equity / Common Stock
Shares outstanding: 79,148,207
Total 13F shares: 66,559,640
Share change: -587,215
Total reported value: $2,701,139,054
Put/Call ratio: 737%
Price per share: $40.56
Number of holders: 293
Value change: -$38,518,716
Number of buys: 145
Number of sells: 155

Quarterly Holders Quick Answers

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

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

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

Newer quarter: Q1 2019
Previous quarter: Q3 2018

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	7.2%	5,694,752	$254,271,000	—	30 Sep 2018	13F
BlackRock Finance, Inc.	13F	Company	6.4%	5,055,794	$225,742,000	—	30 Sep 2018	13F
PECONIC PARTNERS LLC	13F	Company	5.4%	4,277,870	$191,007,000	—	30 Sep 2018	13F
MACQUARIE GROUP LTD	13F	Company	4.6%	3,619,967	$161,631,000	—	30 Sep 2018	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	3.5%	2,753,757	$122,954,000	—	30 Sep 2018	13F
Point72 Asset Management, L.P.	13F	Company	3%	2,375,604	$106,071,000	—	30 Sep 2018	13F
WELLS FARGO & COMPANY/MN	13F	Company	1.9%	1,525,484	$68,113,000	—	30 Sep 2018	13F
FRONTIER CAPITAL MANAGEMENT CO LLC	13F	Company	1.7%	1,378,618	$61,555,000	—	30 Sep 2018	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	1.7%	1,374,573	$61,375,000	—	30 Sep 2018	13F
GLENMEDE TRUST CO NA	13F	Company	1.7%	1,350,837	$60,314,000	—	30 Sep 2018	13F
STATE STREET CORP	13F	Company	1.6%	1,302,338	$58,149,000	—	30 Sep 2018	13F
Hood River Capital Management LLC	13F	Company	1.6%	1,289,414	$57,572,000	—	30 Sep 2018	13F
Alyeska Investment Group, L.P.	13F	Company	1.6%	1,253,131	$55,952,000	—	30 Sep 2018	13F
SG Capital Management LLC	13F	Company	1.4%	1,097,093	$48,985,000	—	30 Sep 2018	13F
DnB Asset Management AS	13F	Company	1.2%	985,500	$44,002,575	—	30 Sep 2018	13F
CITADEL ADVISORS LLC	13F	Company	1.1%	877,429	$39,177,000	—	30 Sep 2018	13F
NORTHERN TRUST CORP	13F	Company	1.1%	856,902	$38,261,000	—	30 Sep 2018	13F
ROTHSCHILD & CO ASSET MANAGEMENT US INC.	13F	Company	1.1%	842,061	$37,598,000	—	30 Sep 2018	13F
AMERIPRISE FINANCIAL INC	13F	Company	1.1%	832,439	$37,167,000	—	30 Sep 2018	13F
Handelsbanken Fonder AB	13F	Company	1%	820,000	$36,613,000	—	30 Sep 2018	13F
PICTET ASSET MANAGEMENT LTD	13F	Company	1%	802,820	$35,846,000	—	30 Sep 2018	13F
Sterling Capital Management LLC	13F	Company	0.99%	784,988	$35,050,000	—	30 Sep 2018	13F
State of New Jersey Common Pension Fund D	13F	Company	0.96%	760,000	$33,934,000	—	30 Sep 2018	13F
NORDEA INVESTMENT MANAGEMENT AB	13F	Company	0.93%	739,415	$33,015,000	—	30 Sep 2018	13F
Intrinsic Edge Capital Management LLC	13F	Company	0.8%	630,838	$28,167,000	—	30 Sep 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.79%	621,668	$27,757,000	—	30 Sep 2018	13F
1060 Capital, LLC	13F	Company	0.76%	600,000	$26,790,000	—	30 Sep 2018	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.75%	595,361	$26,582,000	—	30 Sep 2018	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.73%	575,865	$25,713,000	—	30 Sep 2018	13F
Elk Creek Partners, LLC	13F	Company	0.72%	566,999	$25,317,000	—	30 Sep 2018	13F
Shellback Capital, LP	13F	Company	0.7%	551,465	$24,623,000	—	30 Sep 2018	13F
RICE HALL JAMES & ASSOCIATES, LLC	13F	Company	0.68%	541,430	$24,175,000	—	30 Sep 2018	13F
WESTFIELD CAPITAL MANAGEMENT CO LP	13F	Company	0.67%	532,659	$23,783,000	—	30 Sep 2018	13F
Carlson Capital, L.P.	13F	Company	0.63%	500,000	$22,325,000	—	30 Sep 2018	13F
Newbrook Capital Advisors LP	13F	Company	0.63%	498,868	$22,274,000	—	30 Sep 2018	13F
Cortina Asset Management, LLC	13F	Company	0.57%	449,265	$20,060,000	—	30 Sep 2018	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.53%	419,810	$18,745,000	—	30 Sep 2018	13F
Neuberger Berman Group LLC	13F	Company	0.51%	403,085	$17,998,000	—	30 Sep 2018	13F
MORGAN STANLEY	13F	Company	0.48%	378,486	$16,899,000	—	30 Sep 2018	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.47%	372,475	$16,631,000	—	30 Sep 2018	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.47%	372,271	$16,622,000	—	30 Sep 2018	13F
COMMUNITY TRUST & INVESTMENT CO	13F	Company	0.46%	368,031	$16,433,000	—	30 Sep 2018	13F
Bank of New York Mellon Corp	13F	Company	0.45%	354,300	$15,819,000	—	30 Sep 2018	13F
Impax Asset Management Group plc	13F	Company	0.45%	352,889	$15,756,000	—	30 Sep 2018	13F
ROYAL BANK OF CANADA	13F	Company	0.44%	347,893	$15,534,000	—	30 Sep 2018	13F
Tygh Capital Management, Inc.	13F	Company	0.42%	328,750	$14,679,000	—	30 Sep 2018	13F
KIRR MARBACH & CO LLC /IN/	13F	Company	0.41%	328,207	$14,654,000	—	30 Sep 2018	13F
Anchor Bolt Capital, LP	13F	Company	0.41%	321,577	$14,358,000	—	30 Sep 2018	13F
JPMORGAN CHASE & CO	13F	Company	0.4%	318,415	$14,217,000	—	30 Sep 2018	13F
BILLINGS CAPITAL MANAGEMENT, LLC	13F	Company	0.35%	279,100	$12,462,000	—	30 Sep 2018	13F

Institutional Holders of MASTEC INC - Common Stock (MTZ) as of Q4 2018

As of 31 Dec 2018, MASTEC INC - Common Stock (MTZ) was held by 293 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 66,559,640 shares. The largest 10 holders included BlackRock Inc., Vanguard Group Inc, PECONIC PARTNERS LLC, MACQUARIE GROUP LTD, DIMENSIONAL FUND ADVISORS LP, STATE STREET CORP, SCHRODER INVESTMENT MANAGEMENT GROUP, WELLS FARGO & COMPANY/MN, FRONTIER CAPITAL MANAGEMENT CO LLC, and Handelsbanken Fonder AB. This page lists 293 institutional shareholders reporting positions in this security for the Q4 2018 filing period.

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

Compare Q4 2018 vs Q3 2018 Across Filers

Q3 2018 holders

289

Q4 2018 holders

293

Holder diff

Investor	Q3 2018 Shares	Q4 2018 Shares	Share Diff	Share Chg %	Q3 2018 Value $	Q4 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.