Q4 2025 Earnings Call — February 26, 2026
Our first question comes from Andrea Shepherd with Cantor Fitzgerald. Your line is open. Hey, everyone. Good afternoon. Thanks so much for taking our questions and congrats on all the great progress and thanks for the update on Neutron. Adam, maybe you want to start with the backlog. I'm wondering if you can maybe help us a drill a bit deeper in it and maybe remind us what is included in here. Does this include the 40% of revenue from SDA tranche two, 10% of maybe the tranche three, and what are you including from neutron and electron here? Thank you. Hello? I'm sorry. The mic went off. I don't know how much you caught of that. So all of the SDA contracts were added to backlog. So what remains for SDA tranche two transport layer is still in the backlog. Obviously, what's been recognized as revenue is no longer there. Through the end of Q4, we hadn't recognized any of the tranche three contract awards. So all of that value is currently in backlog, and that will start to convert into revenue and come out of backlog obviously in that process.
As far as Neutron is concerned, I think we've spoken before that we have several flights that are representative in our launch backlog that's reflected in our filings. So hopefully that answers your question on backlog composition. Yeah, that's helpful. Thank you. And maybe just as a follow-up, so, you know, on Neutron with the shift to Q4 now with the first launch, how should we think about cadence? You know, will you still target maybe three launches within the first 12 months after the first one? How confident are we in the development of the second tank? And wondering if maybe we should expect any step up in CapEx now with the second tank in production. Thank you. Adam, I can answer a couple of those and maybe you and someone as well. So with respect to the tank, I think it's well understood what needs to be done there. And we had built a lot of the second stage tank on the ASP machine, so that really solved that problem. Yeah, the way to think about just sort of follow-on flights is it's not quite, you know, as dire as like moving all of the follow-on flights 12 months, you know, or to the first flight.
Because as you've seen in the presentation, we're already building flat out additional neutron tail numbers. So it'll probably be a slightly faster convergence into subsequent flights because, you know, none of the other hardware that's qualified is being halted, obviously. It's just that tank. And the AFP machine enables us to build a tank just way more rapidly than with a hand-lay process. So, you know, I think we'll be in better shape there. Yeah, and Andre, I guess with regards to your question as far as CapEx and so forth related to the second tank, that's replacing the first one that ruptured. I mean, the benefit now, as Pete said, of being on the AFP is not only can we produce it faster, but the actual cost to produce that second tank is quite low. The first tank was very expensive because, as Pete mentioned earlier, it was a hand-laid-up tank. It took a long time. This will be much quicker. And also, since we've now commissioned the AFP, we're really just talking about variable costs related to the tank materials more than anything else because the existing labor is already kind of in the model.
So there won't be any increased capex and You know, the impact to R&D as a result of the tank failure is actually not – the tank itself is actually not that significant. Got it. That's super helpful. Thanks so much for all the detail, and congrats again on the quarter. I'll pass it on.
Thank you.
Our next question comes from Edison Yu with Deutsche Bank. Your line is open. Thank you. And great quarter, as always. I want to ask a question on space data centers. And I think you had alluded to, you know, a lot of interest. I think it's obviously become a hot topic in the industry. Can you give us a sense on how these kind of early discussions are going with potential customers interested in doing this? And is it realistic to see some type of rocket lab content in a space data center, let's say, within the next two or three years? Hey, Addison. Thanks for the question. So I think, look, we're early with data centres. If you look at some of the models, there's a number of things that sort of have to come into focus before they become the logical choice versus terrestrial. But, you know, we never want to miss an opportunity. And, you know, we've been developing the silicon arrays and power solutions for a while now, focusing on mega constellations and, you know, there's high volume power applications. But if you stand back objectively and you think about what are all the challenges with putting data centers in orbit, it boils down to really three things.
One is cost and cadence of launch to be able to make the model close. And then two is heat rejection through various means. And three is just sheer power. Like these are gigawatts of electricity. So, you know, solar arrays of multi-kilometres in scale are what's needed. So, you know, we wanted to make sure that, you know, whether they leave this earth or not, there'll be Rocket Lab logos all over that stuff. So, you know, as far as I'm aware, nobody else has a silicon solution quite like we've developed. Understood. And to your point on heat rejection, I guess the radiator, is that a capability you have in-house that you need to develop over time, or is that something, you know, inorganic? Just curious on what needs to be kind of technically done there. Yeah, I mean, look, all of our spacecraft have radiators. I mean, you generate heat. You have to reject it. So, you know... There's various kind of ways of doing that, piping heat around the spacecraft to radiate it. So I don't see that as a huge technical challenge. It's just on the scale, the scale that's required hasn't been achieved before. So that's the challenge there.
But to be clear, I don't foresee us building massive AI data centres anytime soon, but those who are at least experimenting with it and looking to go down that path, I think we have a lot of compelling solutions. Gotcha. If I could just sneak one quick one in. In terms of just the discussion, can you give us a sense of like the flavor of customers? Are these kind of new customers, non-traditional customers kind of exploring this idea with you? Yeah, I mean, we have to be a little bit careful here, but I would say that there is certainly more non-traditionals looking at this kind of solution than traditional players. Great. Thank you so much.
Thank you.
Our next question comes from Ronald Epstein with Bank of America. Your line is open. Hey, this is Alex Preston on for Ron. Can you guys hear me all right? Yeah, we hear you. Perfect. So I know you talked a little bit about progress on the Monarch acquisition, but I was a little more interested maybe broadly in the environment in Europe and more generally, right? It seems like there's a growing appetite for call it indigenous launch and national security space capabilities. And I'm interested if you sort of see this trend yourselves or how you see this developing. I know, you know, Pete mentioned No other small launch provider has really succeeded in the last year, but it's still, I think, the focus for a lot of people. Yeah, Alex, it's a great question. Look, one of the reasons why we like Monarch and why we think it's important, Europe more in general is exactly that point, is that there's a lot of space nations there that have very little capability with giant aspirations and really short timeframes. And I think it's always everybody's desire to build on.
LC3 has obviously stood up, plus production and test facilities are all humming, while the regulatory work is all tracking along as we expect. The things to look out for the next few months, to know that we're marching steadily towards launch, includes seeing more hardware making its way to the launch site. We will be conducting extensive testing of flight hardware, and then obviously that'll lead up to Neutron's first flight. So that wraps up the operational highlights, so I'll hand over to Adam for the financial overview and outlook. Thanks, Pete. Fourth quarter 2025 revenue was a record $180 million, coming in at the high end of our prior guidance range and representing an impressive year-over-year growth of 36%. This strong performance was driven by significant contributions from both of our business segments. Sequentially, revenue increased by 16%, underscoring the continued momentum across the business. Our space system segment delivered $103.8 million in revenue in the quarter, reflecting a sequential decrease of 9.1%.
This decline was primarily stemmed from our satellite platforms business and our solar businesses, both of which continue to perform exceptionally well despite the time-to-time programmatic non-linearity of revenue recognition under ASC 606 and related subcontractor progress. We're fortunate that the growing diversification across space systems and launch can often provide more predictable top-line growth despite underlying volatility at the individual product line level. This was one of those quarters where strength in launch services more than offset the declines in space systems, generating $75.9 million in revenue, representing an 85% quarter-by-quarter increase due to the increase from four to seven launches during the period, including one haste mission. On a full-year basis, 2025 revenue was $602 million, an impressive 38% growth year-on-year. Now turning to gross margin. Gap gross margin for the fourth quarter was 38%, at the center of our prior guidance range of 37% to 39%, and an increase of 100 basis points quarter-by-quarter.
Non-GAAP gross margin for the fourth quarter was 44.3%, which was also in line with our prior guidance range of 43 to 45%, and an increase of 240 basis points quarter over quarter. The sequential improvement in gross margins was primarily driven by an increase in electron fixed cost absorption due to the increased launch cadence within the quarter, paired with increased contribution from our higher margin space systems components businesses. On a full year basis, GAAP gross margin was 34.4%, an increase of 780 basis points year over year, while non-GAAP gross margin was 39.7%, an increase of 770 basis points year over year.
Relatedly, we ended Q4 with production-related headcount of 1,244, up 46 from the prior quarter. before moving on to backlog i want to take a moment and zoom out and provide perspective on the progress we've made towards our long-term financial model since our nasdaq listing in 2021 revenue has grown nearly 10x achieving a compound annual growth rate exceeding 76 percent gross margins have increased each year more than doubling the contribution from each dollar of revenue this expansion highlights our strong and disruptive competitive position in the industry as well as our highly valued and differentiated products and services across the business. The combination of this revenue growth and margin expansion has put the company on a solid foundation and path towards achieving meaningful operating leverage and long-term cash flow generation. Lastly, I thought it important to call out our SG&A spending as a percentage of revenue, as I'm encouraged to see this continue to trend downward as we scale the business. We are constantly driving the business to be fiercely efficient, and I believe that we're positioned to drive even more growth in efficiency in 2026 and beyond.
Now, turning to backlog. We ended Q4 2025 with approximately $1.85 billion in total backlog, an impressive 69% growth sequentially, primarily due to our recent SDA tranche three tracking their contract award, which we announced last December. As we've mentioned before, space systems backlog in particular can be lumpy given the timing of these increasingly larger needle-moving program opportunities. But once awarded, they can significantly de-risk revenue growth for several years. We continue to cultivate a strong pipeline that includes multi-launch agreements across Electron, HAST, and Neutron, as well as large satellite platform contracts across government and commercial programs. Currently, launch backlog accounts for approximately 26% while space systems represents approximately 74%. Looking ahead, we expect approximately 37% of our current backlog to convert into revenue within the next 12 months, which includes preliminary tranche three revenue recognition estimates, which we believe will prove to be conservative, which in addition to the healthy sales pipeline are expected to drive incremental top line contribution beyond the current 12 month backlog conversion.
Turning to operating expenses, GAAP operating expenses for the fourth quarter of 2025 were $119.3 million, below our guidance range of $122 to $128 million. Non-GAAP operating expenses for the fourth quarter were $104.5 million, which were also below our guidance range of $107 to $113 million. The sequential increase in both GAAP and non-GAAP operating expenses were primarily driven by continued growth in prototype and headcount related spending to support our neutron development program. Specifically, investments ramped up in propulsion as we continue to test Archimedes engines, as well as test and integration of mechanical and composite structures at our facility in Middle River, Maryland. In R&D specifically, gap expenses increased $8.1 million quarter over quarter, while non-gap expenses rose $7.7 million. These increases were driven by the ramp-up of Archimedes' production and testing, along with higher expenditures related to composite structures and fluids, as just mentioned. Q4 ending R&D headcount was 1,012, representing a decrease of 7 from the prior quarter.
In SG&A, gap expenses decreased $5.1 million quarter-over-quarter, while non-gap expenses declined $1.3 million quarter-over-quarter. These decreases were primarily due to a reduction in transaction-related legal and other professional services fees related to M&A and capital markets transactions, paired with a slight reduction in marketing expenses. Q4 ending SG&A headcount was 389, representing an increase of four from the prior quarter. In summary, total headcount at the end of the fourth quarter was 2,645, up 43 heads from the prior quarter. Turning to cash, purchase of property, equipment, and capitalized software licenses were $49.7 million in the fourth quarter of 2025, an increase of $3.8 million from the $45.9 million in the third quarter. This increase reflects ongoing investments in Neutron development as we continue testing and integrating across the pad at LC3 in Wallace, Virginia, and Middle River, Maryland, expanding capabilities at our engine development complex in Long Beach, California, and build out of the return on investment recovery barge in Louisiana.
As we progress towards Neutron's first flight, we expect capital expenditures to remain elevated as we invest in testing, production scaling, and infrastructure expansion. GAAP EPS for the fourth quarter was a loss of 9 cents per share, compared to a loss of 3 cents per share in the third quarter. The sequential increase to GAAP EPS loss is mostly attributable to the $41 million tax benefit we recorded during the third quarter, which was due to the partial release of the valuation allowance against our corporate deferred tax assets, as a result of acquiring an equal amount of deferred tax liabilities emanating from the GOST acquisition purchase price accounting. GAAP operating cash flow was a use of $64.5 million in the fourth quarter of 2025, compared to $23.5 million in the third quarter. The sequential increased use of $41 million was almost entirely due to the timing of employee equity program-related tax payments.
Similar to the capital expenditure dynamics mentioned earlier, cash consumption will remain elevated due to neutron development, longer lead procurement for SDA, investments in subsequent neutron tail production, and infrastructure expansion to scale the business beyond the initial test flight. Overall, non-GAAP free cash flow, defined as GAAP operating cash flow, less purchases of property, equipment, and capitalized software in the fourth quarter of 2025 was a use of $114.2 million compared to a use of $69.4 million in the third quarter. The ending balance of cash, cash equivalents, restricted cash, and marketable securities was approximately $1.1 billion at the end of the fourth quarter. The sequential increase in liquidity was driven by proceeds from sales of our common stock under our at-the-market equity offering program. which generated $280.6 million during the quarter.
These funds are primarily intended to support acquisitions, such as the announced pending Moneric acquisition, the recently consummated acquisitions of Optical Support, Inc., and Precision Components Limited, as well as other targets in our robust M&A pipeline, along with general corporate expenditures and working capital. We exited Q4 in a strong position to execute on both organic and inorganic growth initiatives and to further vertically integrate our supply chain, expand strategic capabilities, and grow our addressable market, consistent with what we've done successfully in the past. Adjusted EBITDA loss for the fourth quarter of 2025 was $17.4 million, which was below our guidance range of $23 to $29 million loss. The sequential decrease of $8.9 million in adjusted EBITDA loss was driven by significant revenue and gross margin improvement, partially offset by increased operating expenses related to neutron development. With that, let's turn to our guidance for the first quarter of 2026. We expect revenue in the first quarter to range between $185 and $200 million, representing 7% quarter-on-quarter revenue growth at the midpoint. and growth of 57% from the year-ago quarter.
We anticipate slight slipdown in both GAAP and non-GAAP gross margins in the first quarter, with GAAP gross margin to range between 34% to 36% and non-GAAP gross margin to range between 39% to 41%, with a modest sequential decline driven by a greater mix of space systems versus higher margin launch and a weaker margin mix within our space system segment. We expect first quarter gap operating expenses to range between $120 and $126 million, and non-gap operating expenses to range between $106 and $112 million. The quarter-over-quarter increases are primarily driven by ongoing Neutron development and spending related to Flight 1, including staff costs, prototyping, and materials. However, we expect to see a shift in spending from R&D and into Flight 2 inventory throughout 2026, which is an encouraging sign of progress as we move closer toward Neutron's first flight and adjusted EBITDA positivity as a result. I'm optimistic that with the impressive strides we've made towards this milestone and currently expect Q1 to mark peak Neutron R&D spending.
We expect first quarter GAAP and non-GAAP net interest income to be $8 million, which is a function of higher cash balances as well as conversion of approximately $117 million of convertible notes since December 31st. We expect first quarter adjusted EBITDA loss to range between $21 and $27 million and basic weighted average common shares outstanding to be approximately 605 million shares, which includes convertible preferred shares of approximately 46 million and reflects the conversion of approximately 23 million shares from our outstanding convertible notes thus far in Q1. There remains only 7.5 million shares or 11% of the original $355 million issuance outstanding, And when taken into the additional context of the retirement of the Trinity equipment line in Q4, we have substantially eliminated indebtedness from the business. Lastly, consistent with prior quarters, we expect negative non-GAAP free cash flow in the first quarter to remain at elevated levels, driven by ongoing investments in neutron development and scaling production. This excludes any potential offsetting effects from financing activities.
Last but not least, here are some of the upcoming investor events that we'll be attending in the next few months. And with that, we'll hand the call over to the operator for questions. Thank you. If you'd like to ask a question, please press star 1-1. If your question has been answered and you'd like to remove yourself from the queue, please press star 1-1 again.
Our first question comes from Andrea Shepard with Cantor Fitzgerald. Your line is open. Hey, everyone. Good afternoon. Thanks so much for taking our questions, and congrats on all the great progress, and thanks for the update on Neutron. Adam, maybe you want to start with the backlog. I'm wondering if you can maybe help us drill a bit deeper in it and maybe remind us what is included in here. Does this include the 40% of revenue from SDA Tranche 2, 10% of maybe the Tranche 3, What are you including from Neutron and Electron here? Thank you. Hello? I'm sorry, the mic went off. I don't know how much you caught of that. So all of the SDA contracts were added to backlog. So what remains for SDA tranche two transport layer is still in the backlog. Obviously what's been recognized as revenue is no longer there. Through the end of Q4, we hadn't recognized any of the tranche three contract awards. So all of that value is currently in backlog and that will start to convert into revenue and come out of backlog obviously in that process.
As far as Neutron's concerned, I think we've spoken before that We have several flights that are representative in our launch backlog that's reflected in our filings. So hopefully that answers your question on backlog composition. Yeah, that's helpful. Thank you. And maybe just as a follow-up, so on Neutron with the shift to Q4 now with the first launch, how should we think about cadence? Will you still target maybe three launches within the first 12 months after the first one? how confident are we in the development of the second tank and wondering if maybe we should expect any step up in CapEx now with the second tank in production? Thank you. Adam, I can answer a couple of those and maybe you and someone as well. Andres, so with respect to the tank, I think it's well understood what needs to be done there and you know, we had built a lot of the second stage tank on the AFP machine. So, you know, that really solved that problem.
And yeah, the way to think about just sort of follow-on flights is it's not quite, you know, as dire as like moving all of the follow-on flights 12 months, you know, or to the, you know, to the first flight, because as you've seen in the presentation, we're already building flat out additional neutron tail numbers. So it'll probably be a slightly faster convergence into subsequent flights because none of the other hardware that's qualified is being halted, obviously. It's just that tank. And the AFP machine enables us to build a tank just way more rapidly than with a hand-lay process. So I think we'll be in better shape there. And, Andre, I guess with regards to your question as far as CapEx and so forth related to the second tank that's replacing the first one that ruptured, I mean, the benefit now, as Pete said, of being on the AFP is not only can we produce it faster, but the actual cost to produce that second tank is quite low. The first tank was very expensive because, as Pete mentioned earlier, it was a hand-laid-up tank. It took a long time. This will be much quicker.
And also, since we've now commissioned the AFP, we're really just talking about variable costs related to the tank materials more than anything else. because the existing labor is already kind of in the model. So there won't be any increased capex. And, you know, the impact to R&D as a result of the tank failure is actually not – that tank itself is actually not that significant. Got it. That's super helpful. Thanks so much for all the detail, and congrats again on the quarter. I'll pass it on.
Thank you.
Our next question comes from Edison Yu with Deutsche Bank. Your line is open. Thank you. And great quarter, as always. I wanted to ask a question on space data centers. And I think you had alluded to, you know, a lot of interest. I think it's obviously become a hot topic in the industry. Can you give us a sense on how these kind of early discussions are going with potential customers interested in doing this and Is it realistic to see some type of rocket lab content in a space data center, let's say, within the next two or three years? Hey, Addison. Thanks for the question. So I think, look, we're early with data centers. If you look at some of the models, there's a number of things that sort of have to come into focus before they become the logical choice versus terrestrial. But, you know, we never want to miss an opportunity. And, you know, we've been developing the silicon arrays and power solutions for a while now, focusing on mega constellations and, you know, these... high volume power applications. But if you stand back objectively and you think about what are all the challenges with putting data centers in orbit, it boils down to the really three things.
One is cost and cadence of launch to be able to make the model close. And then two is heat rejection through various means. And three is just sheer power. Like these are gigawatts of electricity. electrical power. So, you know, solar arrays of multi-kilometers in scale are what's needed. So, you know, we wanted to make sure that, you know, whether they leave this earth or not, there'll be Rocket Lab logos all over that stuff. So, you know, as far as I'm aware, nobody else has a silicon solution quite like we've developed. Understood. And to your point on heat rejection, I guess the radiator, is that a capability you have in-house that you need to develop over time? Or is that something inorganic? Just curious on what needs to be kind of technically done there. Yeah, I mean, look, all of our spacecraft have radiators. I mean, you generate heat. You have to reject it. So, you know, yeah. there's various kind of ways of doing that, piping heat around the spacecraft to radiate it. So I don't see that as a huge technical challenge. It's just, you know, on the scale, the scale that's required is, you know, hasn't been achieved before. So that's, you know, that's the challenge there.
But to be clear, I mean, I don't, you know, those who are at least experimenting with it and looking to go down that path, I think we have a lot of compelling solutions. Gotcha. If I could just sneak one quick one in. In terms of just the discussions, can you give us a sense of like the flavor of customers? Are these kind of new customers, non-traditional customers kind of exploring this idea with you? Yeah, I mean, we have to be a little bit careful here, but I would say that there is certainly more non-traditionals looking at this kind of solution than traditional players. Great. Thank you so much.
Thank you.
Our next question comes from Ronald Epstein with Bank of America. Your line is open. Hey, this is Alex Preston on for Ron. Can you guys hear me all right? Yeah, we can hear you. Perfect. So I know you talked a little bit about progress on the Monarch acquisition, but I was a little more interested maybe broadly in the environment in Europe and more generally, right? It seems like there's a growing appetite for call it indigenous launch and national security space capabilities. And I'm interested if you sort of see this trend yourselves or how you see this developing. I know, you know, Pete mentioned No other small launch provider has really succeeded in the last year, but it's still, I think, focused for a lot of people. Yeah, Alex, it's a great question. Look, one of the reasons why we like Monarch and why we think it's important, Europe more in general is exactly that point, is that there's a lot of space nations there that have very little capability with giant aspirations and really short timeframes. And I think it's always everybody's desire to build domestic capabilities.
But the reality is, if you want to stand up these kind of capabilities really, really quickly, you don't have the decades that it takes to build often these sovereign capabilities. They're very specialist, often equipment and facilities and also intellectual property and knowledge. So we see Europe as a great opportunity for us and a real expansion beachhead where we can provide solutions at the component level. We can provide solutions at the complete system with respect to a satellite. We can provide launch. And you've seen even European space agencies procure launch from us now. And once we have a footprint in Europe proper, you know, being eligible for participating in European programs becomes possible. So I think it's a great opportunity. There's, you know, literally billions and billions of dollars of, you know, well-funded government programs underway right now. And, you know, the timelines associated with those are conducive, or I would say not conducive necessarily always to, you know, creating sovereign capability. Got it.
And then I guess it would sound like the attitude is still broadly constructive from what you said versus maybe Europe starting to get a little more distant from U.S.-based providers. No, I think it's very constructive. I think, you know, naturally that Europe is looking to create sovereign capability, but I think that also, you know, the conversations we've had, they're very pragmatic and realistic that, you know, the capability they're looking to create takes a long time. So, you know, working with, for example, a rocket lab Europe is a great way to move forward. And just real quick, would you characterize that the same on launch as you would on space systems? where I think there's a bit more existing indigenous capability in Europe already. Yeah, th