Renaissance Investment Group LLC trimmed its position in shares of Martin Marietta Materials, Inc. (NYSE:MLM – Free Report) by 20.1% in the 2nd quarter, Holdings Channel reports. Renaissance Investment Group LLC’s holdings in Martin Marietta Materials were worth $5,400,000 at the end of the most recent quarter. Martin Marietta Materials Profile(Free Report)Martin Marietta Materials, Inc (NYSE: MLM) is a leading producer of aggregates and heavy building materials serving the construction and infrastructure markets. Visit HoldingsChannel.com to get the latest 13F filings and insider trades for Martin Marietta Materials, Inc. (NYSE:MLM – Free Report). Receive News & Ratings for Martin Marietta Materials Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Martin Marietta Materials and related companies with MarketBeat.com's FREE daily email newsletter.