David Lyle

David Lyle, listed as finance chief, has filed trades across 4 companies (mainly through SEC (Form 4)), most often in Maxwell Technologies Inc, Surgalign Holdings, Inc. and Mitek Systems Inc. We count 33 filings; the first trade dates from 11 May 2016 and the latest from 2 January 2026.

Market trades split into 4 purchases (€274k) and 3 sales (€148k). Taken together, the purchases exceed the sales by €126k. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. The rest of the record consists of 13 share grants and 12 option exercises.

In size, the median ticket on the buying side is €69k. Clusters matter here: 1 out of 4 purchases overlapped with buying by a colleague within 30 days. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time.

Most recently, on 6 January 2026, the filings show an option exercise in Mitek Systems Inc. The last insider purchase was made public on 19 May 2022, 1,616 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.