Thank you, LaDuane, and good morning. I'll start by giving a quick corporate snapshot overview of LGL just to refresh folks. We're obviously publicly traded, formed in 1917. Today, we have one operating subsidiary that goes under the brand of MtronPTI. Trailing 12 is $25 million, cash and cash equivalents is approximately $7.5 million, our revenue is approximately 50% outside the United States, our current stock price as of Monday was $4.75, we got a market cap of $12.3 million and we're a small player in a very large market.
When we look ahead to our investment highlights, LGL subsidiary, MtronPTI, we really are a large -- serve a large B2B type of client. And really -- we're really in primarily 2 market sectors: Internet Communications Technology, and more largely in Aerospace and Defense. Today, approximately 2/3 of our business is Aerospace and Defense and about 1/3 Internet Communications.
Our technology is core, is based upon crystal technology in the timing arena. We tend to work and perform on the real low noise or, what we call, the performance aspects of the value chain in these kinds of products.
The company's platform itself is enabling. We have a global footprint, we've got a number of U.S. sites, international sales and international supply. And we do have a low-cost manufacturing facility in India, and we have the opportunity to even produce these high-performance products from that particular facility.
Our margins -- we gain margin performance, really, because of the high-value and high reliability of the kinds of applications that our products go into. We strive to have long product life cycles with these repeat revenue streams, and we certainly have an experienced supplier management team to help drive cost.
Our growth opportunity, we have several long-standing relationships with industry leaders. Some of these relationships go back tens of years. And in all cases, we're really a fairly small market share, and so we've got those share gain opportunities as we bring on new products.
Slide 5, we're going to talk about our operating environment in the first quarter of this year. I mentioned on our previous call that we had completed the acquisition of filter product line from Trilithic. In the first quarter, we did reconvert those open orders and we actually began shipments during the first quarter, so I'm going to call that immediately accretive.
In the first quarter of this year, we did realize some benefits from our restructuring that we announced in the fourth quarter. At present, that run rate is about a little over $1 million a year annualized, or $300,000 in this first quarter. On the positive side of our business, we are reporting a positive book-to-bill, and really, even though it's single digits, it's actually been building for 3 quarters in a row.
We knew the first part based upon backlogs at the end of last year, we knew the front half of 2013 (sic) [ 2014 ]was going to be difficult. We are positioning the company for better results in the second half of this year. Cost, new products and I mentioned this favorable bookings trend.
Slide 6. I'd just like to spend a moment commenting on some of the strategic transformations that we've gone through over these past several years as we try and -- try to strive to create this long-term value. We continue to stay committed to organic R&D, and really, what we're doing is we're trying to revitalize or are revitalizing our intellectual property at the company. So our spend in R&D, we disclosed that in the K. It's running about $2 million a year. I think I've talked to you and investors many times that it take several years once we get -- start a program with one of our OEMs before we really turn that into revenue. And so these R&D investments that have been going on these past years, we do expect those to reap new products and certainly increases in revenue.
We're targeting the software-defined radio market and many low-phase noise applications around the sort of high-rel performance areas like radar.
We've made a number of investments into our infrastructure and our company, and really trying to improve our overall operating efficiencies. We've made investments in our ERP system. Those have been notable and sizable to CapEx, and we've certainly gone through a number of changes in our structure as our product mix, as our transformation in the market has taken place to really try and maintain those variable costs, which end up driving our gross margins. You'll see in a slide or 2 when we talk about improvements in gross margin and those trends, and that's really where we're aiming.
And then we mentioned earlier that we had acquired the assets of Trilithic's filter product line at the end of January. Very consistent with our investment strategy of moving upstream to more complicated or complex products with these long and sticky revenue streams and improved margins.
So in essence, we're well underway to transforming our product portfolio towards these longer product life cycles, where we've got enhanced capability integration into our OEM systems and really provide better solutions for them. With that, we believe that provides a more stable business by which we'll have improved margins and returns for you, shareholders.
The first quarter financial results. Revenues were $6.1 million, that's up almost 7% from the fourth quarter, down notably from last year's first quarter. I would like to say that last year's first quarter was certainly our strongest quarter financially for the year. Gross margin was at 26%. That's sequentially up almost 4%. And on increased revenue, it is down from first quarter of again last year, which was our strongest quarter. Net loss was $0.31, and that's sequentially less than the $0.50 we reported in the fourth quarter. On a positive note, backlogs are up almost 6% sequentially over the fourth quarter. And with the margins, with the revenue, we're seeing some improvement in our adjusted EBITDA. Still not where we want it to be, but a notable improvement as compared to the fourth quarter.
The next, Slide 8, we have our typical rolling 12-quarter, I call it our bar chart. But essentially, in the blue bars, we have the revenue for the quarter; in the gray, we have the margins; and the red-green line is really the adjusted EBITDA. The point that we spoke to, we can see revenue trended up slightly. Margins are up as well, and part of that is our restructuring, part of that is our mix and part of that is our operating efficiency. And you can see the trend line on adjusted EBITDA, yes, it's still negative, but it is trending the right way. We talked about our cash position. Cash and cash equivalents is just under $3 a share, and book value at the end of March was $6.18 per share.
We continue to try and position the company for growth. We do have a strong capital position. I mentioned our R&D investments are running almost $2 million a year, and we're fairly targeted with our large OEMs of where we're trying to bring new products into the marketplace. Again, those adoption cycles are quite long in our business. On the other hand, once we do win those design positions, they can often run 10 years or longer. These kinds of components that we make are very sticky and they've got high barriers to switching, and we're well under our way of transforming the company's backlog and product investments along these lines.
We do have a strong position in commercial avionics, either in flight controls or communication systems, and that's certainly the strongest part of our portfolio at present. I mentioned our backlog is up to $9.1 million, almost 6% sequentially.
Slide 10. When we talk about how we're working towards growth, it's been tough on the price side in the business. The networking business has seen a fair amount of price compression, and certainly, that has an impact on our ability to maintain margins and grow [ph]. In the first quarter of this year, again, we talked about our Trilithic acquisition, and certainly, with that, comes some onetime variable costs. And so we expect those to improve as we look forward into the rest of the year with that acquisition. But they certainly challenged -- somewhat challenged our financial performance in the first quarter.
We still have strong new product revenue streams from -- we measure that on a 36-month rolling basis. Certainly, we're going to get some benefits from the impacts of Trilithic I mentioned. We're beginning to see the improved cost structure and what that can do for our P&L, and we remain having a strong working capital position.
Our drivers: again, we are investing for organic growth; we think we have a good chance to share gain inside of our existing clients; we're looking hard at opening up India sales opportunities and some additional operational investments; IP investments towards more functional or highly -- more highly integrated products, especially along the RF and microwave signal management area; and of course, opportunistic and certainly, looking always for synergistic and strategic kinds of acquisitions and joint ventures.
Slide 11, our strategy. Simply stated, to revitalize our intellectual property, really, through our organic investments, as well as these acquisitions. We do have a strong brand with our OEMs and we're going to continue to leverage that as we bring on these new capabilities and diversify our product offerings. In any way we can, we're looking for ways where we can differentiate our offering and bring increased value to our OEMs, so we're very focused on that. While we're doing that essentially, we are transforming our product portfolio towards these offerings that have longer life cycles and higher switching costs or higher competitive barriers and better margins.
Slide 12, a recap of our investment considerations. Strong capital position at LGL, experienced management team, experience with joint ventures and M&A. And today, we are trading at less than book, we've got 0.8 here. Our brand itself has been around a long time; MtronPTI, a great list of clients; a couple of key markets that we serve; a world-class team and platform to work from. Several of our quality standards are recognized. We've spent a lot of time in the last couple of years working towards AS 9100, and we certainly have that certification now worldwide for our company. And we are certainly, today, recognized as an industry leader.
So at this time, operator, I would entertain questions from our listeners.