Outlook. Net sales for the first quarter of 2026 exceeded the prior year period, primarily driven by improved demand in the industrial market at Marine Components. Security Products sales reflected mixed performance across the original equipment manufacturer (“OEM”) markets, driven by differences in customer demand cycles and project timing, resulting in slightly lower net sales compared to the prior year period. Operating income increased compared to the prior year primarily due to a more favorable customer and product mix at Security Products and, to a lesser extent, the impact of higher sales at Marine Components.
For the full year 2026, we expect modest net sales growth as we continue to align pricing, product features, and service levels with market conditions and customer requirements. Net sales growth at Marine Components is expected to be driven primarily by the industrial market. Recreational marine sales have largely stabilized and sales to the towboat market in 2026 are expected to be generally comparable to 2025 (excluding the impact of the one-time stocking event noted above). At Security Products, we expect net sales to be consistent with the prior year, reflecting anticipated continued variability across multiple OEM markets.
We expect gross margin and operating income margins across both segments in 2026 to remain generally comparable to 2025. Operating income margin at Security Products benefited from favorable mix in the first quarter of 2026; however, margins are expected to moderate over the remainder of the year. We increased inventory levels across both segments during 2025 to support customer demand. These actions included an insourcing initiative at Security Products and a shift in customer mix at Marine Components. Inventory levels at the end of the first quarter of 2026 were comparable to those at December 31, 2025 and are expected to remain at these levels, consistent with near-term operating requirements.
We manufacture substantially all our products in the U.S. and source a substantial majority of our raw materials from U.S. suppliers. We also source certain components, primarily electronic components, from suppliers in Asia, including China. Beginning in the second quarter of 2025 and continuing through the first quarter of 2026, we incurred tariff-related surcharges to certain raw materials, primarily electronic components. In addition, some of our U.S.-based suppliers are applying tariff-related surcharges on certain domestically sourced materials. Where possible, we increase selling prices to recover these higher raw material costs, although the extent to which we can fully recover such costs will depend on a variety of factors including the ultimate tariff rate, duration of tariffs, and our customers’ ability to substitute alternative products. We will continue to monitor current and anticipated near-term customer demand levels to ensure our production capabilities and inventories are aligned accordingly.
Our expectations for our operations and the markets we serve are based on a number of factors outside our control. Currently, our supply chains are stable and transportation and logistical delays are minimal. We have experienced global and domestic supply chain challenges in the past. Any future impacts on our operations will depend on, among other things, disruption to our operations or our suppliers’ operations, the effect of tariffs, and the impact of broader economic conditions, consumer confidence, and geopolitical events affecting demand for our products or our customers’ and suppliers’ operations, all of which remain uncertain and cannot be predicted.
Liquidity and Capital Resources
Consolidated cash flows –
Operating activities. Trends in cash flows from operating activities, excluding changes in assets and liabilities, have generally been similar to the trends in operating earnings. Changes in assets and liabilities result primarily from the timing of production, sales and purchases. Changes in assets and liabilities generally tend to even out over time. However, period-to-period relative changes in assets and liabilities can significantly affect the comparability of cash flows from operating activities.
We generally report a net use of cash from operating activities in the first three months of each year due to seasonal changes in the level of our working capital. Our net cash used by operating activities for the first three months of 2026 increased by $1.0 million as compared to the first three months of 2025. The increase in net cash used is primarily due to the net effects of a $1.9 million increase in the amount of net cash used by relative changes in our inventories, receivables, prepaids, payables and non-tax related accruals in 2026 and a $1.2 million increase in operating income in 2026.
Changes in working capital can have a significant effect on cash flows from operating activities. As shown below, the change in our average days sales outstanding increased from December 31, 2025 to March 31, 2026, with changes