MTZMasTec, Inc.

CSNew York Stock Exchange (XNYS)·USD

Identity

Security key: 18873
Ticker: MTZ
Type: CS — Common Stock
Exchange: New York Stock Exchange(XNYS)
Venue group: NYSE
Operating MIC: XNYS
Market: stocks
Locale: us
Currency: USD
Listed: 1972-06-01
Round lot: 40
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: MTZ

Detail

Enriched 2026-08-14 20:47

Market cap: $22,574,523,932.28
Shares outstanding (class): 80,304,948
Shares outstanding (weighted): 80,304,948
SIC: 1623 WATER, SEWER, PIPELINE, COMM & POWER LINE CONSTRUCTION
Employees: 37,000
Location: CORAL GABLES, FL
Homepage: https://www.mastec.com
Description: MasTec is a leading infrastructure construction company operating mainly in North America across a range of industries. Its primary activities include engineering, building, installing, maintaining, and upgrading communications, oil and gas, utility, renewable energy, and other infrastructure. MasTec reports its results under five segments: communications; clean energy and infrastructure; pipeline infrastructure; power delivery; and other.

Market cap and share counts drift.

Funds holding this security

256 funds · 259 positions · $4.45B reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
iShares Core S&P Mid-Cap ETF iShares Trust	IJH	$653.40M	0.62%	2,030,834 NS	FIGI
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$644.13M	0.03%	2,002,008 NS	FIGI
VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS	VB	$468.25M	0.28%	1,455,364 NS	FIGI
First Trust RBA American Industrial Renaissance… First Trust Exchange-Traded Fund VI	AIRR	$389.57M	4.65%	1,210,824 NS	FIGI
VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS	VBK	$261.97M	0.68%	814,216 NS	FIGI
Hood River Small-Cap Growth Fund Manager Directed Portfolios	—	$232.01M	4.46%	721,111 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$220.19M	0.27%	684,384 NS	FIGI
Victory Pioneer Fund Victory Portfolios IV	—	$183.23M	1.83%	569,496 NS	FIGI
State Street SPDR S&P MidCap 400SM ETF Trust —	—	$148.74M	0.61%	462,306 NS	FIGI
iShares S&P Mid-Cap 400 Growth ETF iShares Trust	IJK	$119.99M	1.21%	372,947 NS	FIGI
State Street(R) SPDR(R) Portfolio S&P 400(TM) M… SPDR SERIES TRUST	SPMD	$96.41M	0.62%	299,659 NS	FIGI
iShares Russell Mid-Cap ETF iShares Trust	IWR	$76.52M	0.16%	237,834 NS	FIGI
Fidelity Trend Fund Fidelity Trend Fund	—	$46.39M	1.12%	144,200 NS	FIGI
Columbia Acorn Fund COLUMBIA ACORN TRUST	—	$42.21M	1.88%	131,179 NS	FIGI
VANGUARD STRATEGIC EQUITY FUND VANGUARD HORIZON FUNDS	—	$37.92M	0.37%	117,856 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERMTZ
FIGI_COMPOSITEBBG000DYXD23
FIGI_SHARE_CLASSBBG001S95HF8
CIK0000015615
ISINUS5763231090
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Industrials
Industry: Construction & Engineering
Source: LLMunreviewed
Self-reported confidence: 0.95
Model: deepseek
Rationale: MasTec is an infrastructure construction company, fitting the Industrials sector and Construction & Engineering industry.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.