MLMMartin Marietta Materials

CSNew York Stock Exchange (XNYS)·USD

Identity

Security key: 18621
Ticker: MLM
Type: CS — Common Stock
Exchange: New York Stock Exchange(XNYS)
Venue group: NYSE
Operating MIC: XNYS
Market: stocks
Locale: us
Currency: USD
Listed: 1994-02-16
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: MLM

Detail

Enriched 2026-08-14 20:47

Market cap: $32,669,809,832.1
Shares outstanding (class): 60,065,839
Shares outstanding (weighted): 60,065,839
SIC: 1400 MINING & QUARRYING OF NONMETALLIC MINERALS (NO FUELS)
Employees: 9,600
Location: RALEIGH, NC
Homepage: https://www.martinmarietta.com
Description: Martin Marietta Materials is one of the United States' largest producer of construction aggregates (crushed stone, sand, and gravel). Martin Marietta's most important markets include Texas, North Carolina, Colorado, California, and Georgia, accounting for most of its sales. The company also uses its aggregates in its asphalt and ready-mixed concrete businesses. Martin's magnesia specialties business produces magnesia-based chemical products and dolomitic lime.

Market cap and share counts drift.

Funds holding this security

394 funds · 403 positions · $9.50B reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$1.13B	0.06%	1,912,835 NS	FIGI
VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS	VOO	$902.49M	0.06%	1,533,069 NS	FIGI
VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS	VO	$766.76M	0.39%	1,302,513 NS	FIGI
Fidelity Magellan Fund Fidelity Magellan Fund	—	$465.30M	1.41%	790,404 NS	FIGI
iShares Core S&P 500 ETF iShares Trust	IVV	$456.47M	0.06%	775,412 NS	FIGI
Victory Pioneer Fund Victory Portfolios IV	—	$439.47M	4.39%	746,528 NS	FIGI
N/A —	—	$414.71M	0.06%	704,469 NS	FIGI
State Street(R) Materials Select Sector SPDR(R)… SELECT SECTOR SPDR TRUST	XLB	$287.56M	4.40%	488,482 NS	FIGI
VANGUARD MID-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS	VOT	$270.05M	0.92%	458,739 NS	FIGI
T. Rowe Price Mid-Cap Growth Fund, Inc. T. ROWE PRICE MID-CAP GROWTH FUND, INC.	—	$266.00M	1.18%	451,860 NS	FIGI
VANGUARD GROWTH INDEX FUND VANGUARD INDEX FUNDS	VUG	$239.83M	0.08%	407,406 NS	FIGI
ACAP Strategic Fund —	—	$209.86M	2.03%	356,490 NS	FIGI
VANGUARD INSTITUTIONAL INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS	—	$200.17M	0.06%	340,032 NS	FIGI
Franklin Growth Fund Franklin Custodian Funds	—	$186.19M	1.15%	316,292 NS	FIGI
VANGUARD VALUE INDEX FUND VANGUARD INDEX FUNDS	VTV	$164.18M	0.07%	278,899 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

TICKERMLM
FIGI_COMPOSITEBBG000BGYMH7
FIGI_SHARE_CLASSBBG001S7QC51
CIK0000916076
ISINUS5732841060
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Materials
Industry: —
Source: LLMunreviewed
Self-reported confidence: 0.8
Model: deepseek
Rationale: Construction aggregates producer, classified under materials but no specific industry code matches.

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.