InsidersTradesSigma
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Discover the detailed record of transactions filed by Smollen John. Director active across 1 company, notably MIAMI INTERNATIONAL HOLDINGS, INC.. In total, 4 reports have been logged. Split: 1 buy · 0 sell. Total volume traded: €98k. History available since 13 August 2025. The latest transaction was filed on 30 March 2026 (Retenue fiscale). Regulator: SEC (Form 4). The full history is free.
4 of 4 declarations
Smollen John is a declarant linked to MIAMI INTERNATIONAL HOLDINGS, INC., where he holds the role of EVP, New Product Development. He has 4 filings in total, and across the 4 sampled filings the buy amount is EUR 98182, with no sales, between 2025-08-15 and 2026-04-01. The modal transaction nature indicated is tax withholding.