Stephen K. Brannan

Filings by Stephen K. Brannan span 2 companies, the busiest being Karuna Therapeutics, Inc. and Serina Therapeutics, Inc. The record holds 60 filings, for trades running from 19 February 2020 to 7 July 2026.

Market trades split into 1 purchase (€1,774) and 13 sales (€8.0M). On balance, insiders were net sellers of €8.0M. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Outside the open market, there are 44 option exercises. In 2026 alone, the filings show 1 purchase and no sales.

On 9 July 2026 came the latest disclosure, an open-market purchase for €1,774 in Serina Therapeutics, Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.