InsidersTradesSigma
Total declarations
Companies
▲ Purchases (2 ops.)
▼ Sales (8 ops.)
Insider track record
CEODisclosed buys
2
Disclosed sells
8
T+90 hit rate
50%
T+90 mean return
+35.5%
Across 2 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the detailed record of transactions filed by Cox John, Chief Executive Officer. Director active across 3 companies, notably Dyne Therapeutics, Inc.. Cumulatively, 15 disclosures have been logged. Breakdown: 2 buys · 8 sells. Total volume traded: €1.2m. History available since 4 September 2024. The latest transaction was filed on 13 August 2026 (Cession). Regulator: SEC (Form 4). The full history is accessible without signup.
Companies and markets linked to Cox John
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations15 total
15 of 15 declarations
About Cox John
Cox John is Directeur Général and has made 14 filings in total. In the recent filings we hold, the period runs from 2016-02-09 to 2026-06-17, with EUR 804397 of buys and EUR 257143 of sells, and the most frequent transaction type is Cession. He is associated with Dyne Therapeutics, Inc., BIOGEN INC., and Sigilon Therapeutics, Inc.
