2 tracked superinvestors hold MARTIN MARIETTA MATLS INC (MLM), worth $975M combined, led by Chris Hohn. Smart money is holding MLM as of the latest 13F filings.
Current price
$514.77
-16.5%
1Y
Martin Marietta Materials, Inc. functions as a company specializing in natural resource-derived building materials. This enterprise delivers a wide range of aggregates and other heavy construction components to the building industry, serving both domestic and international markets. Its product portfolio includes foundational raw materials like crushed stone, sand, and gravel, in addition to…
Market cap
$37.1B
P/E
38.45
Div yield
0.6%
Revenue YoY
0.1%
Analyst target
$649
Snapshot for context. For deep analysis use a stock screener — this page is about who owns it.
Superinvestors holding
2
tracked 13F / N-PORT funds
Combined value
$975M
disclosed long exposure
Tier-1 conviction
1
concentrated holders
Net this quarter
0
1 buying · 1 selling
Smart money is holding MLM steady this quarter — buys and sells are balanced. 1 opened a brand-new position.
MARTIN MARIETTA MATLS INC (MLM) is held by 2 tracked funds worth $975M combined, 1 of them concentrated Tier-1 managers whose positions carry real conviction.
The largest position belongs to Chris Hohn at 1.4% of their book — no single tracked manager treats it as an outsized, top-weighted bet.
This quarter 1 fund opened a brand-new position (Chris Hohn), with 0 adding and 1 trimming — a net accumulation signal.
| Investor | Move | % of their portfolio | Position value |
|---|---|---|---|
| New buy | 1.4% | $758M | |
| Trimmed | 1% | $216M |
Tier badge = signal quality: 1 concentrated conviction · 2 quant/multi (context) · 3 retail & diversified. Only Tier 1 holdings feed the consensus signal.
Which superinvestors own MLM?
2 tracked funds hold MARTIN MARIETTA MATLS INC (MLM), the largest being Chris Hohn (TCI Fund Management) at 1.4% of its 13F portfolio. 1 of them are concentrated Tier-1 conviction managers.
Is smart money buying or selling MLM?
In the most recent 13F quarter, 1 tracked fund added or opened MLM and 1 trimmed it, including 1 brand-new position.
How much MLM do tracked funds hold?
Combined disclosed long exposure to MLM across tracked superinvestors is $975M as of the Jun 2026 filings.
One email when a tracked manager opens, adds to or files to sell a position — from Form 4, 13D and Form 144, not the 45-day-old 13F.
Holdings aggregated from the latest SEC 13F & N-PORT filings via FMP · Jun 2026 quarter. Long equity positions only, reported with up to a 45-day delay — for activity between filings see real-time moves. Not financial advice.