Here's the question worth answering by reading across the sector: are all 'space companies' the same kind of company? They are not — and the filings make the difference obvious within a page. Put a defense prime's disclosures next to a new-space pure-play's and you are looking at two different financial species.
The prime reads like an established industrial business. Northrop Grumman's 10-Q explains revenue changes by pointing to program volume — more sales here, higher volume on hypersonics there. RTX's 10-K spreads across integrated air and missile defense, sensors, interceptors, space-based systems and more. The story is diversified programs, long-cycle backlog, and revenue recognized steadily over years. These companies are profitable and the question is growth and mix.
The new-space pure-play reads like a different document entirely. AST SpaceMobile's 10-K is dominated not by backlog but by cash — a balance that grew from about $86 million to over $2 billion as the company raised capital to fund a constellation that barely earns revenue yet. The central numbers are cash on hand, burn rate, and development risk. The question is not mix; it is survival to completion.
Rocket Lab sits instructively in between, which is why it is the most interesting filing in the sector. Its FY2025 10-K shows real, growing revenue — $602 million — like a maturing industrial company, alongside a development-stage risk (the un-flown Neutron) and a fortified cash balance, like a new-space bet. It is a company crossing from one species to the other in real time.
Zoom out and the practical lesson is about which numbers to trust as the story. For a prime, watch backlog and segment mix — the recurring, contracted machine. For a pre-revenue new-space company, watch cash and runway — whether it can reach the finish line before the money runs out. Reading the wrong metric for the wrong species is the most common mistake in space-sector analysis.
Three filings, one insight: the word 'space' hides two business models. One is funded by appropriations and measured in backlog; the other is funded by capital markets and measured in runway. Both are surfaced via EdgarBeast and recorded on sec.gov — and once you can tell them apart, every filing in the sector gets easier to read.