Sir Capital Management, L.P. Mastec Inc Transaction History

Sir Capital Management, L.P.

$968 Million
Q3 2025

A detailed history of Sir Capital Management, L.P. transactions in Mastec Inc stock. As of the latest transaction made, Sir Capital Management, L.P. holds 134,788 shares of MTZ stock, worth $25.9 Million. This represents 2.96% of its overall portfolio holdings.

Number of Shares

134,788

Previous 70,388 91.49%

Holding current value

$25.9 Million

Previous $12 Million 139.11%

% of portfolio

2.96%

Previous 1.19%

21 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$168.23 - $212.81 $10.8 Million - $13.7 Million	64,400 Added 91.49%	134,788 $28.7 Million
Q2 2025 Aug 12, 2025	BUY	$106.07 - $171.99 $2.87 Million - $4.66 Million	27,100 Added 62.6%	70,388 $12 Million
Q1 2025 May 15, 2025	SELL	$108.66 - $160.79 $3.74 Million - $5.54 Million	-34,435 Reduced 44.3%	43,288 $5.05 Million
Q4 2024 Feb 14, 2025	BUY	$119.94 - $147.94 $2.1 Million - $2.59 Million	17,500 Added 29.06%	77,723 $10.6 Million
Q3 2024 Nov 14, 2024	SELL	$97.3 - $126.14 $4.29 Million - $5.56 Million	-44,066 Reduced 42.25%	60,223 $7.41 Million
Q2 2024 Aug 07, 2024	SELL	$82.82 - $112.25 $231,813 - $314,187	-2,799 Reduced 2.61%	104,289 $11.2 Million
Q1 2024 May 15, 2024	BUY	$63.16 - $93.73 $6.76 Million - $10 Million	107,088 New	107,088 $9.99 Million
Q2 2022 Aug 15, 2022	BUY	$68.67 - $87.6 $3.07 Million - $3.92 Million	44,720 Added 816.06%	50,200 $3.6 Million
Q1 2022 May 16, 2022	SELL	$71.94 - $96.57 $107,910 - $144,855	-1,500 Reduced 21.49%	5,480 $477,000
Q4 2021 Feb 14, 2022	SELL	$85.07 - $101.57 $5.13 Million - $6.12 Million	-60,300 Reduced 89.63%	6,980 $644,000
Q2 2021 Aug 16, 2021	SELL	$94.79 - $121.26 $635,093 - $812,442	-6,700 Reduced 9.06%	67,280 $7.14 Million
Q1 2021 May 17, 2021	SELL	$67.29 - $98.93 $2.6 Million - $3.82 Million	-38,620 Reduced 34.3%	73,980 $6.93 Million
Q4 2020 Feb 16, 2021	BUY	$41.5 - $70.4 $3.43 Million - $5.82 Million	82,700 Added 276.59%	112,600 $7.68 Million
Q3 2020 Nov 16, 2020	BUY	$37.14 - $48.76 $1.11 Million - $1.46 Million	29,900 New	29,900 $1.26 Million
Q1 2020 May 15, 2020	SELL	$23.36 - $64.34 $359,744 - $990,836	-15,400 Closed	0 $0
Q4 2019 Feb 14, 2020	BUY	$60.09 - $72.82 $925,386 - $1.12 Million	15,400 New	15,400 $988,000
Q2 2019 Aug 14, 2019	SELL	$45.75 - $52.61 $237,900 - $273,572	-5,200 Closed	0 $0
Q1 2019 May 15, 2019	SELL	$40.05 - $48.1 $1.6 Million - $1.93 Million	-40,040 Reduced 88.51%	5,200 $250,000
Q4 2018 Feb 14, 2019	SELL	$37.73 - $50.67 $4.11 Million - $5.52 Million	-108,930 Reduced 70.66%	45,240 $1.84 Million
Q3 2018 Nov 14, 2018	BUY	$40.65 - $53.2 $3.41 Million - $4.47 Million	83,950 Added 119.55%	154,170 $6.88 Million
Q2 2018 Aug 14, 2018	BUY	$44.0 - $54.5 $3.09 Million - $3.83 Million	70,220 New	70,220 $3.56 Million

Others Institutions Holding MTZ

# of Institutions

712

Shares Held

54.4M

Call Options Held

586K

Put Options Held

606K

View Full List

About MASTEC INC

Ticker MTZ
Exchange NYSE
Sector Industrials
Industry Engineering & Construction
Shares Outstandng 78,192,600
Market Cap $15B
Description
MasTec, Inc., an infrastructure construction company, provides engineering, building, installation, maintenance, and upgrade services for communications, energy, utility, and other infrastructure primarily in the United States and Canada. It operates through Communications, Clean Energy and Infrastructure, Oil and Gas, Power Delivery, and Other ...

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Sir Capital Management, L.P. Mastec Inc Transaction History