Lindblad Expeditions filed a Form S-3 with the US Securities and Exchange Commission, signaling it may offer up to $300m in debt, common stock, preferred stock or warrants from time to time and in one or more offerings.

Net proceeds would be used for general corporate purposes. The company said it may also invest the net proceeds in short-term investments.

Lindblad shares, traded on the NASDAQ Capital Market, closed at $8.54 Monday, up 8.8%.