When it comes to StealthGas, it's more of the same for Glendon Capital Management.

The southern California investment firm spent 2018 buying shares of the Harry Vafias-led LPG carrier owner in dribs and drabs, eventually doubling its position from 2.5 million shares to 5.1 million by year's end.

SEC filings show that Glendon in 2019 has bought 20 more rounds, ranging anywhere from a few hundred shares to just under 500,000, upping its stake to 6.5 million shares.

The firm was most active in February and March. Its most recent buy was 39,125 shares on 1 July at $3.50 each.

Purchase prices ranged between $3.06 to $3.50.

Glendon is StealthGas' largest shareholder, ahead of MSD Partners and Russel Investments Group, with 3.7 million and 2.5 million shares respectively.

Year to date, StealthGas shares have traded between $2.79 and $3.64. In late trading Tuesday, shares were up 3 cents, or 0.85%, to $3.55.