SER SERINA THERAPEUTICS INC Capital Structure Changes 8-K Filing 2023 - Credit Drawdown AgeX drew $1 million of its available credit under the Amended and Restated Secured Convertible Promissory Note with Juvenescence, and may borrow up to an additional $2,000,000 until May 9, 2023.Get access to all SEC 8-K filings of the SERINA THERAPEUTICS INC