MTZMasTec, Inc.

$212.55+5.8% 1Y

Who owns MTZ

900 institutions reported holding MTZ for 2026Q2, together 75% of the company, more than the 798 a quarter earlier.

900

Institutions reporting a position · as of 2026Q2 · up from 798 the quarter before

Shares held by institutions
59.3M

Shares held by institutions · 75% of the company · long US equity positions only, as reported on Form 13F

Reported value
$24.7B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
28%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
186
Positions exited
84
Added to
290
Reduced
277
Top 10 holdersof the company
36%
Shares sold shortsettled Sep 15, 2026
5.4M
Short interestof shares outstanding
6.9%
Days to coverat the average daily volume
4.1
Change in the short positionsince the Aug 31, 2026 count
+2.0%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q290059.3M$24.7B
2026Q179857.9M$18.6B
2025Q468558.6M$12.7B
2025Q364257.1M$12.1B
2025Q258855.8M$9.49B
2025Q151756.3M$6.56B
2024Q452757.4M$7.79B
2024Q346557.7M$7.09B
2024Q242659.3M$6.35B
2024Q137659.0M$5.50B
2023Q436561.6M$4.66B
2023Q337657.0M$4.11B
2023Q238858.1M$6.84B
2023Q138958.0M$5.47B
2022Q438458.2M$4.96B
2022Q333655.4M$3.53B
Largest reported holders, 2026Q2
HolderShares% of companyValue
BlackRock Inc.7.6M9.7%$3.18B
VANGUARD GROUP INC6.1M7.8%$2.55B
PECONIC PARTNERS LLC3.7M4.7%$1.53B
STATE STREET CORP2.2M2.8%$934M
Hill City Capital, LP2.2M2.7%$897M
LONE PINE CAPITAL LLC1.3M1.7%$560M
BANK OF AMERICA CORP /DE/1.3M1.7%$556M
FIRST TRUST ADVISORS LP1.3M1.7%$553M
JPMORGAN CHASE & CO1.3M1.7%$567M
GEODE CAPITAL MANAGEMENT LLC1.3M1.6%$530M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20265.4M6.9%4.1
Aug 31, 20265.3M6.7%3.6
Aug 14, 20265.3M6.7%3.2
Jul 31, 20264.4M5.6%2.7
Jul 15, 20264.2M5.4%4.3
Jun 30, 20264.4M5.6%3.2
Jun 15, 20263.7M4.7%3.5
May 29, 20263.3M4.2%2.4
May 15, 20263.2M4.1%2.9
Apr 30, 20263.1M3.9%3.7
Apr 15, 20263.0M3.8%4.6
Mar 31, 20262.8M3.6%2.7

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

opening the register…