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MLM · Martin Marietta Materials Inc

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TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+2.47% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV-1.12% 13F +693CRM-0.46% 13F +1,018CVNA+2.74% 13F +794TPL-0.71% 13F +444NET-4.47% 13F +710MSTR-1.35% 13F +526DELL+15.81% 13F +1,203CRWD-5.42% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475

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MLM

Name: MARTIN MARIETTA MATERIALS INC (MLM) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

MARTIN MARIETTA MATERIALS INC

MINING & METALS · MINING & QUARRYING OF NONMETALLIC MINERALS (NO FUELS) · CIK 0000916076

ACTIVIST 13DCONGRESS · 1☆ WATCH

INSIDER NET · 180D

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

476

13F, latest reported quarter

REVENUE GROWTH

+8.6%

XBRL, annual

NET MARGIN

18.5%

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

no Form 4 purchases or sales on file

CONGRESS

1 member bought in the last year

the lowest in Mining & Metals

FUNDS

476 funds added or opened last quarter

more than 93% of Mining & Metals

REVENUE

+8.6% year over year

more than 51% of Mining & Metals

MARGIN

18.5% net margin

more than 89% of Mining & Metals

BUYBACKS

$200.0M repurchased, FY to 2026-06-30

more than 81% of Mining & Metals

SHORT

4.0% of shares outstanding short · 3.7 days to cover · settled 2026-07-31

more than 65% of Mining & Metals

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

476 funds added or opened positions in the latest 13F quarter, of 1,078 holders.

LNA Holding SRL disclosed a 5%+ stake (15.4%) in the last six months.

1 member of Congress reported buying it this year.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN -15.8%

-15.8%12M

13D/G STAKE

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

An activist crossed the 5% line with declared intent.

The record shows 476 funds added last quarter, 1 Congress member(s) bought in 12 months. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

MP TG NUE NEM GLW IE HYMC LCGMF UUUU CRS ATI LEU

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

No insider purchases or sales are on record for MARTIN MARIETTA MATERIALS INC in the period covered. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER

FILED

VALUE

PEREZ LAREE E

Director

SELL

2025-08-08

1,038.0

$636.6K

McCunniff Donald A.

EVP and CHRO

SELL

2025-03-05

1,332.0

$632.7K

Petro Michael J

SVP - Strategy and Development

BUY

2025-03-04

550.0

$249.9K

BAR ROSELYN R

EVP, General Counsel and Secy

SELL

2024-03-14

10,000.0

$6.0M

Nye C Howard

Chairman, Pres & CEO

SELL

2024-03-05

5,000.0

$3.0M

12 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 7 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

4,692,446.0 sh

$2.7B

VANGUARD CAPITAL MANAGEMENT LLC

3,929,705.0 sh

$2.3B

VANGUARD PORTFOLIO MANAGEMENT LLC

3,197,395.0 sh

$1.8B

STATE STREET CORP

3,159,639.0 sh

$1.8B

BANK OF AMERICA CORP /DE/

2,446,762.0 sh

$1.4B

5%+ owners

13D = intent to influence · 13G = passive

LNA Holding SRL

ACTIVIST 13D · 2026-08-24

15.4%

Kalk en Dolomiet Maatschappij SA

ACTIVIST 13D · 2026-08-24

15.4%

Financiere de Gestions Internationales SCA

ACTIVIST 13D · 2026-08-24

15.4%

GPI SA

ACTIVIST 13D · 2026-08-24

15.4%

FORM 144

No planned-sale notices

No insider has notified an intent to sell. This is the panel to watch after a run-up.

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Cromwell Tran Focus Fund

$1.2M POSITION · AS OF 2026-03-31

5.3%

Eaton Vance Atlanta Capital Select Equity Fund

$18.0M POSITION · AS OF 2026-03-31

5.3%

TCW Transform Supply Chain ETF

$638.3K POSITION · AS OF 2026-04-30

5.3%

FAM DIVIDEND FOCUS FUND

$32.2M POSITION · AS OF 2026-03-31

5.1%

Saratoga Large Capitalization Value Portfolio

$855.2K POSITION · AS OF 2026-02-28

4.7%

Invesco Building & Construction ETF

$20.6M POSITION · AS OF 2026-04-30

4.5%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Executive pay vs shareholder return · C. Howard Nye

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$14.3M

$25.7M

$2.8M

+126%

+39%

2024

$17.7M

$16.2M

$3.6M

+87%

+26%

2023

$18.5M

$35.1M

$3.5M

+79%

+26%

2022

$12.8M

$6.5M

$2.4M

+21%

+12%

2021

$14.9M

$39.0M

$2.7M

+56%

+27%

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$6.2B	$5.7B	$5.9B	$6.2B
GROSS PROFIT	$1.9B	$1.6B	$1.7B	$1.4B
OPERATING INCOME	$1.4B	$2.5B	$1.3B	$1.2B
NET INCOME	$1.1B	$2.0B	$1.2B	$866.7M
EPS (DILUTED)	18.77	32.41	18.82	13.87
OPERATING CASH FLOW	$1.8B	$1.5B	$1.5B	$991.0M
CASH	$67.0M	$670.0M	$1.3B	$358.0M
LONG-TERM DEBT	$5.3B	$5.3B	$3.9B	$4.3B
BUYBACKS	$450.0M	$450.0M	$150.0M	$150.0M
DIVIDENDS PAID	$197.0M	$189.0M	$174.0M	$160.0M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE