MasTec

MTZ • NYSE

MasTec is a engineering & construction company in the industrials sector on NYSE, led by Paul DiMarco, with a market cap of $17.4B. As of Q3 2025, 72% of shares are held by 631 institutional investors, with BlackRock, Inc. as the largest holder at 9.81%.

Executive Vice President and Chief Financial OfficerPaul DiMarco

Market Cap$17.4B

Engineering & Construction

Industrials

Employees34.0K

Websitemastec.com

Country

United States of America

Overview

Overview of institutional ownership in MTZ as of Q3 2025 with a market cap of $16.8B

All Institutions

Institutions: 631
Value Held: $12.0B
Shares Held: 56.6M
Avg Position: $19.1M
Median Position: $1.1M

Hedge Funds

Hedge Funds: 83
Value Held: $2.9B
Shares Held: 13.5M
Avg Position: $34.6M
Median Position: $5.4M

Ownership Breakdown

Institutional (non-HF)

54.6%

$9.2B

Hedge Funds

17.1%

$2.9B

Retail & Other

28.3%

$4.8B

Based on market cap of $16.8B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in MTZ as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$1.6B 0.03% of portfolio	9.81% 7.7M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$1.3B 0.02% of portfolio	7.61% 6.0M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
H Hill City Capital, LP Hedge Fund•Value	Herbert Anselem Frazier CIO	$458.6M 18.75% of portfolio	2.73% 2.2M shares	Q4 2022 Held for 2y 11m	$2.4B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$391.0M 0.01% of portfolio	2.33% 1.8M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
Invesco Ltd. ETF Provider	Brian Christopher Hartigan CEO	$354.2M 0.06% of portfolio	2.11% 1.7M shares	≤ Q2 2013 Held for 12y 5m+	$633.08B
Hood River Capital Management LLC Long Only Manager	Brian Paul Smoluch Managing Partner	$350.4M 4.14% of portfolio	2.09% 1.6M shares	Q4 2020 Held for 4y 11m	$8.5B
NORDEA INVESTMENT MANAGEMENT AB Institution	Paul Manning CEO	$283.3M 0.25% of portfolio	1.70% 1.3M shares	Q4 2017 Held for 7y 11m	$114.17B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$239.7M 0.02% of portfolio	1.43% 1.1M shares	≤ Q2 2013 Held for 12y 5m+	$1.57T
FIRST TRUST ADVISORS LP ETF Provider	James Allen Bowen CEO	$217.5M 0.16% of portfolio	1.30% 1.0M shares	Q1 2014 Held for 11y 8m	$134.11B
VICTORY CAPITAL MANAGEMENT INC Long Only Manager	David Craig Brown CEO	$201.3M 0.13% of portfolio	1.20% 946.6K shares	Q3 2017 Held for 8y 2m	$158.22B

Net Capital Flow

Institutional buying and selling activity for MTZ in Q3 2025

Traded: +$332.2M
Buyers: 334
Sellers: 290
Total Bought: +$1.8B
Total Sold: −$1.5B
Avg Position: $17.1M

Biggest Buyers

Institution	Net Bought	Current Position
VICTORY CAPITAL MANAGEMENT INC Long Only Manager	+$199.2M +936.7K shares	$201.3M 946.6K shares
PECONIC PARTNERS LLC Hedge Fund•Long/Short	+$159.6M +750.0K shares	$159.6M 750.0K shares
Third Point LLC Hedge Fund•Multi-Strategy	+$154.3M +725.0K shares	$154.3M 725.0K shares
FMR LLC Institution	+$98.0M +460.5K shares	$99.1M 465.6K shares
F Forest Avenue Capital Management LP Hedge Fund•Long/Short	+$89.8M +421.9K shares	$89.8M 421.9K shares
1 140 Summer Partners LP Hedge Fund•Multi-Strategy	+$81.5M +383.0K shares	$81.5M 383.0K shares
FIRST TRUST ADVISORS LP ETF Provider	+$74.5M +350.2K shares	$217.5M 1.0M shares
Merewether Investment Management, LP Hedge Fund•Sector	+$69.1M +324.5K shares	$184.6M 867.2K shares
JACOBS LEVY EQUITY MANAGEMENT, INC Hedge Fund•Quant	+$64.8M +304.4K shares	$156.0M 732.9K shares
B BNP PARIBAS ARBITRAGE, SA Institution	+$50.9M +239.3K shares	$63.6M 299.0K shares

Biggest Sellers

Institution	Net Sold	Current Position
GOLDMAN SACHS GROUP INC Institution	−$106.3M −499.3K shares	$69.0M 324.3K shares
B BlackRock, Inc. Institution	−$89.6M −420.8K shares	$1.6B 7.7M shares
C COOPER CREEK PARTNERS MANAGEMENT LLC Hedge Fund•Long/Short	−$64.6M −303.3K shares	$25.7M 120.6K shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$52.0M −244.4K shares	$177.4M 833.4K shares
Cartenna Capital, LP Hedge Fund•Long/Short	−$51.1M −300.0K shares	Sold Off 0 shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	−$50.5M −237.3K shares	$140.1M 658.2K shares
ARROWSTREET CAPITAL LIMITED PARTNERSHIP Hedge Fund•Quant	−$37.9M −178.3K shares	$39.6M 186.0K shares
DIMENSIONAL FUND ADVISORS LP Long Only Manager	−$36.3M −170.4K shares	$199.0M 935.0K shares
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$36.1M −171.8K shares	$189.2M 900.5K shares
JPMORGAN CHASE & CO Institution	−$36.0M −169.3K shares	$45.1M 211.7K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited MTZ in Q3 2025

New Positions: 70
New Value: $334.0M
Exited Positions: 73
Exited Value: $269.8M

New Positions

Institution	Position Value
Third Point LLC Hedge Fund•Multi-Strategy	$154.3M 725.0K shares
1 140 Summer Partners LP Hedge Fund•Multi-Strategy	$81.5M 383.0K shares
H HILLMAN CO Institution	$22.2M 104.2K shares
M MAPLELANE CAPITAL, LLC Hedge Fund•Long/Short	$21.5M 101.0K shares
Webs Creek Capital Management LP Hedge Fund•Long/Short	$12.0M 56.4K shares
T TCW GROUP INC Institution	$4.0M 18.9K shares
Otter Creek Advisors, LLC Hedge Fund•Long/Short	$3.4M 15.8K shares
M Mubadala Investment Co PJSC Institution	$3.3M 15.3K shares
V Vennlight Capital Management, LP Hedge Fund•Long/Short	$3.1M 14.6K shares
G Gallo Partners, LP Hedge Fund•Sector	$2.3M 10.8K shares

Exited Positions

Institution	Previous Position
Cartenna Capital, LP Hedge Fund•Long/Short	$51.1M 300.0K shares
TORONTO DOMINION BANK Institution	$21.3M 125.1K shares
ACK Asset Management LLC Hedge Fund•Long/Short	$21.3M 125.0K shares
Marshall Wace LLP Institution	$13.5M 79.5K shares
T TEMASEK HOLDINGS LTD Institution	$12.1M 71.0K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	$11.3M 66.3K shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$11.0M 64.4K shares
H HRT FINANCIAL LLC Institution	$9.6M 56.3K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$9.5M 55.8K shares
C Covalis Capital LLP Institution	$9.5M 55.5K shares

Options Activity

Institutions with the largest Call and Put options positions in MTZ as of Q3 2025

Call Positions: 14
Call Value: $104.8M
Put Positions: 17
Put Value: $108.2M

Call Positions

Institution	Position Value
S SCOPUS ASSET MANAGEMENT, L.P. Hedge Fund•Long/Short	$27.7M 1.3K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$26.0M 1.2K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$15.6M 732.0 contracts
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage	$11.7M 549.0 contracts
J JANE STREET GROUP, LLC Institution	$10.5M 494.0 contracts
W WOLVERINE TRADING, LLC Institution	$4.8M 230.0 contracts
P PEAK6 LLC Institution	$2.2M 103.0 contracts
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$1.9M 91.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	$1.5M 69.0 contracts
LEUCADIA NATIONAL CORP Institution	$1.0M 48.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$45.8M 2.2K contracts
J JANE STREET GROUP, LLC Institution	$17.4M 816.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$10.0M 468.0 contracts
S SCOPUS ASSET MANAGEMENT, L.P. Hedge Fund•Long/Short	$6.4M 300.0 contracts
W WOLVERINE TRADING, LLC Institution	$5.3M 255.0 contracts
UBS Group AG Institution	$5.0M 234.0 contracts
LEUCADIA NATIONAL CORP Institution	$4.3M 200.0 contracts
Interval Partners, LLC Hedge Fund•Long/Short	$3.9M 185.0 contracts
Walleye Trading LLC RIA/Wealth	$2.6M 124.0 contracts
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage	$2.6M 120.0 contracts

Most Committed Institutions

Institutions with MTZ as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
H Hill City Capital, LP Hedge Fund•Value	Herbert Anselem Frazier CIO	18.75% $458.6M	2.73% 2.2M shares	Q4 2022 Held for 2y 11m	$2.4B
Goodlander Investment Management, LLC Hedge Fund•Long/Short	Charles Anthony Labanowski Founder	14.69% $38.5M	0.23% 181.0K shares	Q4 2024 Held for 11 months	$262.3M
Electron Capital Partners, LLC Hedge Fund•Long/Short	Ran Nmn Zhou Managing Partner	7.90% $174.3M	1.04% 819.1K shares	Q4 2020 Held for 4y 11m	$2.2B
1 1060 Capital, LLC Institution	-	7.23% $2.1M	0.01% 10.0K shares	Q4 2023 Held for 1y 11m	$29.4M
1 140 Summer Partners LP Hedge Fund•Multi-Strategy	Peter Watkins Rosenblum CIO	6.87% $81.5M	0.49% 383.0K shares	Q3 2025 Held for 2 months	$1.2B
H HILLMAN CO Institution	-	6.85% $22.2M	0.13% 104.2K shares	Q3 2025 Held for 2 months	$323.9M
KIRR MARBACH & CO LLC /IN/ Long Only Manager	Mark David Foster Member	6.52% $36.1M	0.22% 169.8K shares	≤ Q2 2013 Held for 12y 5m+	$553.9M
F Forest Avenue Capital Management LP Hedge Fund•Long/Short	Tarigh Nmn Yusufi Founder	6.45% $89.8M	0.53% 421.9K shares	Q3 2025 Held for 2 months	$1.4B
MUHLENKAMP & CO INC RIA/Wealth	Anthony William Muhlenkamp President	6.12% $22.5M	0.13% 105.8K shares	Q2 2023 Held for 2y 5m	$367.9M
Merewether Investment Management, LP Hedge Fund•Sector	Rodney W. J. Saddington CEO	4.42% $184.6M	1.10% 867.2K shares	Q4 2024 Held for 11 months	$4.2B

Hedge Fund Spotlight

Discover hedge funds investing in MTZ

MAPLELANE CAPITAL, LLC

Hedge Fund • Long/Short

Portfolio ManagerLeon Shaulov

Portfolio Value: $2.1B
Positions: 52
Last Reported: Q3 2025

Sector Allocation

Position in MasTec

Market Value: $21.5M
Shares Held: 101.0K
Portfolio Weight: 1.03%
Owned Since: 2025-Q3

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