Keith Valentine

This profile gathers the share dealings of Keith Valentine across 5 companies, led by Nuvasive Inc, SeaSpine Holdings Corp and Alphatec Holdings, Inc. We count 209 filings; the first trade dates from 23 January 2006 and the latest from 10 June 2026.

The open-market side counts 8 purchases for €1.6M alongside 75 sales for €11.4M. The net balance comes to €9.9M on the selling side. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Besides market trades, the filings include 55 share grants and 57 option exercises.

The median purchase comes to €183k. Clusters matter here: 3 out of 5 purchases overlapped with buying by a colleague within 30 days. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.

The record was last updated on 12 June 2026 with a share grant in Alphatec Holdings, Inc. The latest purchase dates back some time: it was published 810 days ago, on 5 August 2024. The median gap between a trade and its publication by SEC (Form 4) is 3 days. For comparison, the SEC allows two business days to file a Form 4. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.