Crowdstrike is trading 4.18% down at €208.60, extending pressure linked to cybersecurity-sector concerns over OpenAI’s reported talks to acquire Trail of Bits. - The concerns weighed on cybersecurity shares on October 15. - A report published October 16 disclosed CEO George Kurtz’s stock sales on October 13 and 14; it did not establish that they drove this session’s move. - The Nasdaq Composite is down 0.67% in the supplied market context. No new company announcement explaining the decline was identified.