Dear Shareholders

Sensirion continued on its growth trajectory in the first half of 2026, with revenue increasing by 6.9 % in local currencies. This development is particularly encouraging given the exceptionally strong first half of 2025, which benefited from significant frontloading effects related to A2L leakage sensors. At the same time, the overall conditions remain challenging: uncertainty in global supply chains, geopolitical tensions and the volatile tariff situation continue to shape the market environment. During the reporting period, we benefited in particular from high demand in the medical market and from strong growth in the distribution business across all regions. The ability to continue growing even in a volatile environment demonstrates the importance of our sensor solutions to our customers.

Our performance in the first half of the year underscores the strength of our business model. We are already the global market leader in many of our applications. Building on our leading market positions, our technology platforms and our deep application expertise, we are systematically targeting new markets in the field of smart gas sensing. This will pave the way for the next phase of growth.

Broad-based revenue growth and continued high profitability

The first half of 2026 closed with revenue of CHF 179.0 million, representing year-on-year growth of 6.9 % in local currencies (–3.0 % in Swiss francs). All four end markets contributed to this positive development.

As expected, profitability remained stable in the reporting period: the gross margin was 52.6 % (previous year: 51.5 %) and the EBITDA margin 19.5 % (previous year: 19.8 %). Despite the continued strength of the Swiss franc and rising raw material prices worldwide due to geopolitical uncertainty, we were able to maintain profitability at a high level. This was achieved through systematic efficiency improvements along the entire value chain, targeted price adjustments and the continued internationalization of our activities. Together, these measures largely offset the negative impact of currency effects and higher material costs.

Net profit was particularly encouraging, rising significantly year-on-year to CHF 18.9 million (previous year: CHF 10.4 million) due to an improved financial result. At the same time, operating cash flow increased to CHF 34.0 million (+20 % year-on-year). Free cash flow amounted to CHF 10.6 million, despite investments of CHF 8.2 million in the construction of the new production building in Stäfa (CH). We therefore continue to have a strong financial foundation for making targeted investments in innovation, capacity and our strategic growth areas.

Growth supported by all four end markets

In the reporting period, revenue in the automotive market rose to CHF 40.6 million, an encouraging year-on-year increase of 11 % in local currencies (+3 % in Swiss francs). In view of the ongoing structural challenges facing the Western automotive industry, this result underscores the strength of our market position. In addition to our established presence in existing applications, new growth areas also made a measurable contribution to revenue, particularly solutions for battery monitoring in electric vehicles, where the first series production runs were successfully started at European customers. This will pave the way for further growth over the coming years in a strategically important emerging market.

The medical technology market also performed well in the first half of 2026, generating revenue of CHF 28.7 million. This corresponds to year-on-year growth of 10 % in local currencies (+1 % in Swiss francs). Compared with the second half of 2025, revenue increased by around 39 %, underscoring the current strong demand in this end market. The growth was driven primarily by CPAP and ventilation applications.

The broadly diversified industrial market generated revenue of CHF 97.4 million in the first half of 2026, maintaining the high level of the prior-year period in local currencies (+1 % in local currencies, –9 % in Swiss francs). Given the strong frontloading effects in the A2L business in the first half of 2025, we consider this a positive result. Growth in other industrial areas offset the expected normalization of the A2L business. Gas metering and gas chromatography applications performed particularly strongly.

The market situation for refrigerant leakage detection is developing as expected: although the US-focused market for A2L leakage detection remains competitive, we were able to hold our ground thanks to our strong market position, technology leadership and close collaboration with leading OEMs. In the emerging market for A3 leakage detection, both the market and technology are developing in line with our expectations. Building on our strong position in the A2L market, we are working with leading OEMs on the next generation of leakage detection solutions, thereby laying the foundation for future growth.

The highly fragmented consumer market again posted strong growth, with revenue increasing by around 45 % in local currencies (+27 % in Swiss francs) to CHF 12.3 million in the first half of 2026. This development was driven primarily by the distribution business, which saw high demand in all three regions. With its broad customer and application base, the consumer market is an increasingly important part of our portfolio and makes a significant contribution to the diversification of our business.

“We measure gases”: ambitious growth strategy in the field of smart gas sensing

At our Capital Markets Day in April 2026, we honed our growth strategy under the banner “We measure gases” and set out how we intend to further expand our position as a leading provider of sensor solutions.

Sensirion now has one of the world’s most comprehensive technology portfolios for the precise measurement and analysis of small gas volumes. Combined with extensive application expertise and long-standing customer relationships, this provides the basis for our leading market positions in our existing applications. Based on these strengths, we are pursuing the clear goal of becoming a leader in the broader area of smart gas sensing by 2030. To this end, we are focusing on critical applications in which precise gas measurement makes a significant contribution to safety, health, energy efficiency, regulatory compliance and industrial process quality. In these demanding fields of application, individual sensor components alone are no longer sufficient. What is needed are intelligent and reliable sensor solutions that are deeply integrated into our customers’ systems.

Smart gas sensing is a rapidly growing billion-dollar market, supported by long-term megatrends such as increasing safety requirements, tighter regulation, greater energy efficiency and growing demand for modern health monitoring. These developments are creating attractive growth opportunities for intelligent sensor solutions worldwide.

Building on our existing market positions, we have identified more than ten specific growth areas across all end markets. Each of these offers long-term revenue potential in the hundreds of millions and is supported by strong structural growth drivers. Our growth strategy is therefore based on a broadly diversified portfolio of attractive areas of application. Examples include leakage detection for critical gases, battery monitoring in electric vehicles, breath gas analysis and industrial gas analysis. All of these growth areas address relevant customer problems, are technologically demanding and build on Sensirion’s existing strengths.

Alongside these areas, improving our resilience remains a key pillar of our growth strategy. In an ever more volatile world, this is becoming increasingly important. We are therefore working systematically on strengthening our supply chains and safeguarding critical processes. One important milestone is the construction of our second cleanroom in Stäfa, which is progressing on schedule and within budget. This additional infrastructure will create the conditions for further growth while also increasing the redundancy of our production and thereby strengthening long-term security of supply for our customers.

New management structure to support growth strategy

To consistently implement our ambitious growth strategy, we are also evolving our management structure. Going forward, we will align the different responsibilities even more closely with the requirements of our business:

At Executive Commitee level, this will result in new responsibilities from October 1, 2026: Johannes Schumm, previously VP Research & Development, will lead the Components business area. Simon Sonderfeld, previously Marketing & Sales, will be responsible for Market Solutions.

Annual General Meeting approves all proposals

At the Annual General Meeting 2026, all proposals put forward by the Board of Directors were approved. In particular, all members of the Board of Directors were confirmed for a further term of office.

Revenue forecast for 2026 increased

Based on the solid half-year result and the continued positive performance, we are raising our revenue forecast for 2026 from CHF 335–360 million to CHF 345–365 million. This underscores the resilience of our business and our confidence in its continued development in a market environment that remains challenging.

The developments of the first six months also confirm our strategic direction. The growth areas established in recent years continue to gain momentum and are beginning to contribute more meaningfully to revenue. Some are still at an early stage, but they offer significant potential for the coming years.

Assuming stable economic conditions, we now expect sales of CHF 345–365 million for 2026 as a whole at current exchange rates. Adjusted for currency effects, this corresponds to year-on-year revenue growth of 8–14 %. In terms of profitability, we expect our EBITDA margin to land in the upper half of our guided mid- to high-teens range.

Thank you

On behalf of the Board of Directors and the Executive Committee, we would like to thank all our employees. What sets Sensirion apart is not just its technologies and products but, above all, the people who contribute to the company’s success each day with their commitment, expertise and passion. Every contribution counts. Only by working closely across teams, locations and functions can we successfully bring innovations to the market and achieve our ambitious goals.

Our willingness to take responsibility, actively shape change and remain agile in a dynamic environment is deeply embedded in our corporate culture and fundamental to our success. We would like to sincerely thank our employees for this.

We also extend our heartfelt thanks to you, dear shareholders, for your trust and loyalty.