First Manhattan Co

SEC CIK: 0000728083
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

MTZ holding history

Mastec Inc in every 13F filed by First Manhattan Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MTZ overview All 13F holders of MTZ Full Q2 2026 holdings

Shares (Q1 2024): 0; Sold out in Q1 2024
Value: $0
% of portfolio: 0.0%
Quarters held: 3; Since Q3 2021

Holdings of MTZ by First Manhattan Co, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q1 2024	0	$0	0.0%	−131−100.0%	Sold out	Holders
Q4 2023	131	$9.92K	<0.1%	00.0%	Unchanged	Holders
Q3 2023	131	$9.43K	<0.1%	+131	New	Holders
Q4 2021	0	$0	0.0%	−55−100.0%	Sold out	Holders
Q3 2021	55	$4.00K	<0.1%	+55	New	Holders