Question 1

How many shares of MLM does GARDNER RUSSO & QUINN LLC own?

Accepted Answer

As of 2026-Q1, GARDNER RUSSO & QUINN LLC holds 715,411 shares of MLM (MARTIN MARIETTA MATLS INC).

Question 2

What is GARDNER RUSSO & QUINN LLC's MLM position worth?

Accepted Answer

As of 2026-Q1, GARDNER RUSSO & QUINN LLC's MLM position is worth $421.1M.

Question 3

Is GARDNER RUSSO & QUINN LLC buying or selling MLM?

Accepted Answer

In 2026-Q1, GARDNER RUSSO & QUINN LLC decreased their MLM position (-1.5% change in shares).

Question 4

When did GARDNER RUSSO & QUINN LLC first buy MLM?

Accepted Answer

Based on available 13F filings, GARDNER RUSSO & QUINN LLC first reported a position in MLM in 2026-Q1. They have held the position across 29 quarters.