內部人 股權轉讓 證券交易法第二十二條之二 大股東 規則一四四 章則D 大股東移轉經營權 公開收購股權 僑外人投資 事前申報制度 資訊不對稱 Insiders Large shareholders Share transfer Article 22-2 of the Securities Exchange Act Rule 144 Regulation D Sale-of-control Tender offer Overseas Chinese and foreign investments Pre-reporting rule Information asymmetry