IMPP ▲ +2.5% - Imperial Petroleum Inc. $IMPP IMPPP - Imperial Petroleum Inc. Declares Dividend on Series A Preferred Shares Imperial Petroleum Inc. declared a dividend on its Series A Preferred Shares, a move that typically signals confidence in the company's cash position and appeals to income-focused investors. The stock rose 2.5% on the announcement. 11-SEP-2026 05:00 PM ET