InsidersTradesSigma
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Discover the complete record of transactions filed by K. Massey. Officer active across 1 company, notably argenx SE. Aggregated, 7 disclosures have been logged. Activity tracked since 6 May 2026. The latest transaction was disclosed on 21 August 2026 (Other). Regulator: AFM. The full history is openly available.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
7 of 7 declarations
K. Massey is a declarant linked to argenx SE, where the listed role is Director or Supervisory Board. The declarant has 5 filings in total, and across the sampled recent filings from 2026-06-22 to 2026-07-03, both buy and sell amounts are shown as EUR 0, with a modal transaction nature of Mixed.