Lonza Group AG Stock: price and insider trades · Switzerland

Lonza Group AG, classified in the Healthcare & Pharma sector, is a listed company based in Basel, Switzerland, founded in 1897. Its insiders report their share dealings to SIX SER. In the past year (18 October 2025 to 18 October 2026), 11 filings came from 4 insiders.

Both sides are active: 5 purchases worth €1.2M and 6 sales worth €1.7M, from 3 insiders and 2 insiders respectively. Taken together, the sales exceed the purchases by €545k. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Biggest ticket of the year: €523k, sold and made public on 20 August 2026. On the buying side, the filings list 3 senior executives among the declarants.

In all, 2 purchases were made within 30 days of a purchase by another insider of the company. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase. The clock since the last published purchase (8 May 2026) now reads 162 days. Half of the filings or more reach the SIX SER feed on the day of the trade. That lag is the time during which only the insider knows about the trade. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives.

With 11 filings in twelve months, the company is more active than the median of 9 filings across the 178 companies we follow on the same exchange. Over the whole record (from 2023), the tally stands at 25 purchases and 11 sales.

Other companies in the same sector with recent insider buying flagged by our signals: Cooper Companies, Inc. and Cytosorbents Corp. This summary is built from SIX SER disclosures alone and does not predict where the share price will go.