Thanks, Aaron, and good morning, everyone. Please move to Slide 5. From an overall perspective, the first quarter results were in line with our expectations. During the period, we had orders of $554 million, an increase of 6% from a year ago, bringing our March 31 backlog to $971 million. the higher order intake was primarily driven by the European mobile business.
Net sales in the quarter were $495 million, a decrease of 3% from a year ago. The year-over-year decrease was primarily driven by continued softness in our European tower crane business. This impact was partially offset by the Americas and the European mobile crane business. Our non-new machine sales were $145 million, relatively flat year-over-year. MGX, our in-house distribution business continues to grow its aftermarket. However, used sales in our traditional OE business were down modestly.
SG&A expenses were $76 million or 15% as a percentage of sales and relatively flat year-over-year. Our adjusted EBITDA for the first quarter was $31 million, a decrease of 31% year-over-year. The adjusted EBITDA margin was 6.3%, a decrease of 260 basis points over the prior year due to unfavorable product mix. The European tower crane market continues to be a headwind with a year-over-year impact to adjusted EBITDA of approximately $20 million. This was partially offset by incremental shipments from the rest of the business.
As we have stated in previous calls, tower cranes sold into Europe represent our highest margin product. And unfortunately, our European factories also have the least flexible overhead structures, resulting in weak absorption of fixed costs as volumes decline. Our GAAP diluted income per share in the quarter was $0.12. On an adjusted basis, diluted income per share was $0.14, a decrease of $0.32 from the prior year.
Please turn to Slide 6. Net working capital ended the quarter at $509 million. Although our accounts receivable ended higher than we anticipated due to the timing of the Easter holiday, the main driver for our increase in working capital is inventory.
While we have our normal seasonality with line starts relative to our build schedule, the single largest growth in inventory, whether it be year-over-year or versus year-end within our internal distribution channel, our build schedule for these businesses was more heavily weighted in the first half, giving us more flexibility to ship products in the second half. We expect to work our inventory down significantly by the end of the year.
Moving to cash flows. We used $31 million of cash for operating activities during the quarter. Capital expenditures were $12 million, of which $6 million was for our rental fleet. We ended the quarter with a cash balance of $32 million. Total outstanding borrowings under the ABL increased $14 million during the quarter, leaving $74 million outstanding. Our net leverage ratio was 2.4x, well under the targeted 3x, and total liquidity was $233 million.
With that, I will now turn the call back to Aaron.