Ticker · CUSIP 576323109

MTZ

MASTEC INC
Industrials·Engineering & Construction
···Share
Holders (tracked)
16
Combined shares
4,477,377
Combined value
$961.35M
Last close
$358.14
Quarter
2025Q4
Tracked holders · last 8 quarters
+5 vs previous quarter over the last 8.
16112024Q12025Q4
Price is +66.8% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

25 events
  1. Daniel Loeb (Third Point) added2026-02-17
    +200,000 shares · 2025Q4
    Position
  2. Steve Cohen (Point72) added2026-02-17
    +62,570 shares · 2025Q4
    Position
  3. Ken Griffin (Citadel Advisors) trimmed2026-02-17
    −40,717 shares · 2025Q4
    Position
  4. D.E. Shaw & Co. added2026-02-17
    +48,014 shares · 2025Q4
    Position
  5. Philippe Laffont (Coatue) opened position2026-02-17
    +677,909 shares · 2025Q4
    Position
  6. Two Sigma Investments added2026-02-17
    +86,216 shares · 2025Q4
    Position
  7. Izzy Englander (Millennium Mgmt) trimmed2026-02-17
    −101,129 shares · 2025Q4
    Position
  8. T. Rowe Price added2026-02-17
    +3,635 shares · 2025Q4
    Position
  9. AQR Capital Management trimmed2026-02-17
    −169,505 shares · 2025Q4
    Position
  10. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +5,300 shares · 2025Q4
    Position
  11. Ray Dalio (Bridgewater Associates) opened position2026-02-13
    +10,724 shares · 2025Q4
    Position
  12. George Soros (Soros Fund Mgmt) opened position2026-02-13
    +14,704 shares · 2025Q4
    Position
  13. Norges Bank (Norway SWF) opened position2026-02-10
    +60,481 shares · 2025Q4
    Position
  14. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −64,366 shares · 2025Q3
    Position
  15. Izzy Englander (Millennium Mgmt) trimmed2025-11-14
    −244,420 shares · 2025Q3
    Position
  16. Steve Cohen (Point72) trimmed2025-11-14
    −237,304 shares · 2025Q3
    Position
  17. Two Sigma Investments trimmed2025-11-14
    −77,257 shares · 2025Q3
    Position
  18. D.E. Shaw & Co. trimmed2025-11-14
    −149,232 shares · 2025Q3
    Position
  19. AQR Capital Management trimmed2025-11-14
    −171,769 shares · 2025Q3
    Position
  20. Daniel Loeb (Third Point) opened position2025-11-14
    +725,000 shares · 2025Q3
    Position
  21. T. Rowe Price added2025-11-14
    +3,373 shares · 2025Q3
    Position
  22. Ray Dalio (Bridgewater Associates) exited2025-11-13
    −30,680 shares · 2025Q3
    Position
  23. Renaissance Technologies exited2025-11-13
    −66,323 shares · 2025Q3
    Position
  24. Norges Bank (Norway SWF) exited2025-11-13
    −73,355 shares · 2025Q3
    Position
  25. Norges Bank (Norway SWF) trimmed2025-11-12
    −748,479 shares · 2024Q3
    Position

Insider activity

No insider transactions in the last 30 days.
View full insider history for MTZ →
Follow-the-investor returns
If you'd copied each holder of MTZ…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2016Q1$24.10+1386.2%$19.6M
AQR Capital Management2016Q2$122.58+192.2%$261.8M
Steve Cohen (Point72)2016Q2$155.48+130.3%$358K
Steve Cohen (Point72)2016Q2$155.48+130.3%$358K
Ray Dalio (Bridgewater Associates)2025Q2$170.43+110.1%$3.8M
D.E. Shaw & Co.2016Q1$175.81+103.7%$85.6M
Paul Tudor Jones (Tudor Investment)2016Q3$184.24+94.4%$1.9M
Ken Griffin (Citadel Advisors)2016Q2$209.37+71.1%$30.7M
Ken Griffin (Citadel Advisors)2016Q2$209.37+71.1%$30.7M
Ken Griffin (Citadel Advisors)2016Q2$209.37+71.1%$30.7M
Two Sigma Investments2016Q1$211.34+69.5%$34.5M
Daniel Loeb (Third Point)2025Q3$213.80+67.5%$331.3M
Izzy Englander (Millennium Mgmt)2016Q1$216.93+65.1%$262.3M
George Soros (Soros Fund Mgmt)2025Q4$217.37+64.8%$5.3M
Philippe Laffont (Coatue)2025Q4$217.37+64.8%$242.8M
Norges Bank (Norway SWF)2016Q1$233.09+53.6%$21.7M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions5
Added to5
Trimmed3
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
11
$48.29B
2022Q2
9
$34.57B
2022Q3
10
$30.3M
2022Q4
13
$661.6M
2023Q1
12
$804.4M
2023Q2
12
$977.1M
2023Q3
14
$587.3M
2023Q4
14
$726.5M
2024Q1
11
$932.6M
2024Q2
17
$1.15B
2024Q3
16
$643.3M
2024Q4
13
$562.9M
2025Q1
13
$291.7M
2025Q2
17
$674.1M
2025Q3
11
$743.9M
2025Q4
16
$961.4M
Congress members trading this stock
DateMemberTypeAmount rangeFiling
2025-10-31Lisa McClainSell$1K – $15KPDF ↗
2025-10-30Lisa McClainSell$1K – $15KPDF ↗
2025-10-30Lisa McClainBuy$1K – $15KPDF ↗
2025-06-11Lisa McClainBuy$1K – $15KPDF ↗

Who owns MTZ

16 super-investors · 2025Q4
Tracked stake
4.48M
shares
Combined value
$961M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New5Added6Trim5
#ManagerSharesValue
1Daniel Loeb
Third Point
925.0K$201M
2Izzy Englander
Millennium Mgmt
732.3K$159M
3AQR Capital Management731.0K$159M
4Steve Cohen
Point72
720.8K$157M
5Philippe Laffont
Coatue
677.9K$147M
6D.E. Shaw & Co.238.9K$52M
7Ken Griffin
Citadel Advisors
101.3K$22M
8Two Sigma Investments96.3K$21M
9Ken Griffin
Citadel Advisors
85.7K$19M
10Norges Bank
Norway SWF
60.5K$13M
11Ken Griffin
Citadel Advisors
21.3K$5M
12George Soros
Soros Fund Mgmt
14.7K$3M
13Ray Dalio
Bridgewater Associates
10.7K$2M
14Paul Tudor Jones
Tudor Investment
5.3K$1M
15Steve Cohen
Point72
1.0K$217K
16T. Rowe Price54.8K$12K

Recent moves

20 transactions
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