Materials · owned by 1 fund manager

Who owns Martin Marietta Materials (MLM)?

1 of the 22 fund managers we track hold Martin Marietta Materials, worth $758M combined as of Q2 2026. Chris Hohn has the biggest bet at 1.4% of the portfolio.

Ownership summary

Fund manager owners
1 / 22
1 opened new positions
Combined value
$758M
At quarter-end prices
Biggest weight
1.4%
Chris Hohn
Buyers / sellers
1 / 0
Changes in Q2 2026
MLM · live priceLive
Live market widget loads here when you are online.
Smart money take

Why it matters

When several investors with very different styles own the same company, it’s often worth a closer look. Martin Marietta Materials appears in 1 of our 22 portfolios.

  • Largest holder: Chris Hohn (1.4% of portfolio)
  • 1 manager bought or added this quarter
  • 0 managers trimmed or sold out
  • 8 congressional trades disclosed recently (6 buys, 2 sells)

This is not a recommendation. Do your own research.

Fund managers who own MLM

SEC 13F · Q2 2026
Fund managers holding Martin Marietta Materials
Investor% of portfolioActivitySharesValue
Chris Hohn
TCI Fund Management
1.44%New1,315,109$758M
Congressional trades in MLMAll politician trades
MemberTypeAmount TradedDisclosed
D April McClain Delaney
House · MD
Sell$100,001 – $250,00025 Aug 20269 Sep 2026
D April McClain Delaney
House · MD
Buy$1,001 – $15,00019 Aug 20269 Sep 2026
D April McClain Delaney
House · MD
Buy$15,001 – $50,00024 Jul 20263 Aug 2026
D April McClain Delaney
House · MD
Buy$1,001 – $15,00020 Jul 20263 Aug 2026
D April McClain Delaney
House · MD
Buy$1,001 – $15,00017 Jul 20263 Aug 2026
D April McClain Delaney
House · MD
Buy$1,001 – $15,00028 May 20265 Jun 2026
D Josh Gottheimer
House · NJ
Sell$1,001 – $15,0009 Apr 202619 May 2026
D April McClain Delaney
House · MD
Buy$1,001 – $15,0009 Mar 20266 Apr 2026
Coming soon · QWERTx Pro

Professionally managed portfolios, built around your life.

We are building QWERTx Pro: portfolios matched to your risk profile and time horizon, managed by experienced financial advisors. Join the waitlist to hear first when it launches.

Glass panels of rising height lit in gold and teal, representing portfolios for different risk levels