Robin Seim
Analyst · Matt Hewitt with Craig-Hallum Capital Group
Thanks. So first, I'll cover the MTS acquisition, and as we said in the past, growth through acquisition is one of the 3 pillars to our overall strategy along with international market expansion and further penetration of our customer base in the United States.
The acquisition of MTS expands our business significantly and we believe it's a good use of our cash because it's expected to drive growth in our business. Omnicell's acquiring MTS Medication Technologies for $156 million in an all-cash transaction. We expect the transaction to close in late Q2 or early Q3, following the Hart-Scott-Rodino antitrust review.
For reference here, MTS recorded approximately $75 million of revenue and $12 million of EBITDA in their last fiscal year, which ended on March 31, 2012. Excluding amortization of intangible, acquisition-related cost, we expect the acquisition to be accretive in 2012. We will able to give a more specific forecast for 2012 as we get more clarity on the actual close date. For 2013, when we have a full year of MTS included in our results, we currently anticipate non-GAAP EPS accretion of approximately $0.15 to $0.17 per share. And that's excluding amortization of the acquisition-related cost.
Following the acquisition, Omnicell's employee base will be approximately 1,100 regular employees worldwide and we will add facility locations in Florida, in Ohio, in the United Kingdom and in Germany. Following the acquisition, we expect to have approximately $50 million to $55 million of cash and cash equivalents remaining on our balance sheet.
So now turning to the first quarter of 2012, Omnicell results were just about exactly where we had previously expected. With $64.1 million of revenue and $0.13 per share of non-GAAP earnings. Our orders were a little more skewed to existing customers as we expect them to be while adoption of the G4 upgrade continues to grow. 28% of our Q1 orders came from new Greenfield customers or competitive conversions. With about 3/4 of those from Greenfield customers who are buying automation for the first time.
Revenue for Q1 2012 increased 12% from Q1 of 2011 and 2% from Q4 of 2011. Q1 2012 profit on a GAAP basis was $0.07 per share, up from $0.02 per share 1 year ago. And we also look at our profits on a non-GAAP basis excluding stock compensation expense, which is the non-cash expense representing the estimated future value of employee stock options, restricted stock and employee stock purchase plan. And we used non-GAAP financial statements in addition to GAAP financial statements and we feel is useful for investors to understand the non-GAAP stock compensation expenses that are a component of our reported results.
We find a full reconciliation of our GAAP to non-GAAP results included in our first quarter's earnings press release and it is posted on our website. On a non-GAAP basis, EPS of $0.13 in Q1 2012 was up from $0.11 in Q1 2011, but down from $0.19 in Q4 2011. There are 3 reasons for the decline in profit from Q4 for the last year and all of them were anticipated in our guidance for Q1 that we gave in January.
First, we typically have seasonally higher expenses in Q1 that cause a drop in earnings for the quarter. Second, we had higher R&D expense booked in the quarter because we did not capitalize any software R&D expense. We were on about $6.2 million of gross R&D expense each quarter on a non-GAAP basis and the amount of R&D that is capitalized can vary, depending upon where we are in product development cycles. And finally, we had benefit of $0.02 per share in Q4 2011, for a company bonus plan that was not achieved and that benefit did not repeat in Q1 2012.
Our non-GAAP operating margin was 9.2% in the quarter and that's up from 7.7% in Q1 of 2011. This is down sequentially, but in line with our expectations and our guidance for overall improvement towards 15% by the end of the year. Adjusted earnings before interest taxes, depreciation and amortization, which also excludes the stock compensation, amortization, $8.2 million for the first quarter of 2012, up from $6.3 million or an increase of 32% from a year ago.
The balance sheet remains very strong. Cash and cash equivalents were $210 million up $10 million from Q4 2011. We did very well on collections, keeping our accounts receivable days sales outstanding at 56 days, up 2 days from last quarter, but well below our current target range of 60 to 70 days. Inventory also decreased from $18 million to $17 million. And as we've demonstrated today, we target our cash for complementary acquisitions. And we believe after the acquisition, we will continue to generate enough cash to remain active in the acquisition market.
Regarding the remainder of 2012, we believe we are on track with our previous guidance. We expect 2012 revenue excluding MTS Medication Technologies to be between $263 million and $267 million, up 7% to 8% year-to-year. We expect non-GAAP earnings excluding MTS Medication Technology's again to be between $0.67 and $0.72 per share, up 14% to 22%.
Consistent with our strategy, we expect orders to shift towards existing customers as the G4 upgrade cycle becomes a greater percentage of our business. Of the new customers, we expect Greenfield customers to be a higher mix from our business because most international accounts are first-time buyers of medication or supply automation. We expect 2012 year end product backlog, excluding MTS Medication Technologies, to be between $138 million and $142 million, an increase of up to 6%, from 2011. We are keeping our sights on our goal of 15% non-GAAP operating margins, expect to make significant progress towards that goal through 2012. By the end-of-the-year we expect to be very close to achieving 15%.
After we close the acquisition of MTS Medication Technologies, we expect to reevaluate our guidance for 2012. Expect to continue our practice of giving guidance on annual revenue, annual non-GAAP earnings per share and year-end Product backlog. Although Product backlog will represent less of our business after the MTS acquisition because MTS has a heavier mix of consumables.
So, operator, now, I'd like to open the call to your questions.