A southern California investment firm has cut back its position in Seacor Marine Holdings.

Private Management Group sold more than 200,000 shares in the New York-listed offshore player, lowering its stake from 6.09% to 4.25%, Securities and Exchange Commission filings from Wednesday show.

According to its quarterly report filed last November, the Irvine-based firm has stakes in Ardmore Shipping Company and Dorian LPG, alongside 77,000 shares of Seacor Holdings.