Senti Biosciences is trading 5.34% up at $0.24 in after-hours trading on October 16, with no specific catalyst confirmed. - The stock closed the regular session at $0.22. - On October 15, shareholders approved the merger and authorized a discretionary 1-for-20 to 1-for-50 reverse split. Available reporting does not establish that either development caused the gain. - The broader market was lower, so it does not explain the stock’s move in the same direction.