Northrop Grumman-backed Firefly Aerospace raised the proposed price range for its U.S. initial public offering on Monday and is now targeting a valuation of up to $6.04 billion in its U.S. listing, underscoring investor interest in space-related ventures.

In its IPO filings last month, Firefly reported $60.79 million in revenue for 2024, up from $55.24 million in 2023. The company appears on track to surpass those figures, reporting $55.86 million in revenue in the first quarter of 2025 alone.

Firefly Aerospace has said it expects to price shares in its upcoming IPO $35 to $39 a piece, a deal that would value the rocket maker at about $5.5 billion.