In trading on Wednesday, shares of Great Lakes Dredge & Dock Corp (GLDD - Get Report) touched a new 52-week high of $5.45/share. That's a 51.39% rise, or $1.85 per share from the 52-week low of $3.60 set back on 08/24/2017. That means at today's intraday high, any investor who purchased GLDD stock any time over the past 52 weeks has an unrealized gain, including company insiders.

Over the past six months, insiders have been scooping up shares, and those bets are now paying off handsomely. As summarized by the table below, GLDD has seen 3 different instances of insiders buying over the trailing six month period.

Ten Bargains You Can Buy Cheaper Than The Insiders Did »

Purchased Insider Title Shares Price/Share Value
08/04/2017 Robert B. Uhler Director 5,000 $3.73 $18,650.00
08/11/2017 Lasse Petterson CEO 155,897 $3.74 $583,124.84
08/14/2017 Lasse Petterson CEO 42,610 $3.92 $166,834.48
11/10/2017 Michael Joseph Walsh Director 2,000 $4.70 $9,400.00
11/10/2017 Robert B. Uhler Director 5,320 $4.72 $25,137.00

The chart below shows where GLDD has traded over the past year, with the 50-day and 200-day moving averages included.

Great Lakes Dredge & Dock Corp Moving Averages Chart

In afternoon trading on Wednesday, GLDD shares are changing hands at $5.42/share, slightly below the new 52-week high.