2013我國公司法與證券交易法，在法典內容之修法雖然不多，卻具有一定重要性。在司法實務審判方面，於2013年有一些司法裁判涉及一些議題，也值得關注。公司法於本年度共計修法二次，分別於1月16日與1月30日公布施行，總計修正二個條文。證券交易法方面，全年僅於2013年6月5日修正公布一個條文。公司法及證券交易法修法內容，包括修正公司法第197條有關公開發行公司董事於當選後就任前轉讓持股超過選任當時二分之一規定之文字，以及增訂公司法第154條第2項「揭穿公司面紗原則」。在證券交易法方面，僅修正第14條之1有關內部控制制度聲明書申報時間之調整。 2013年在公司法及證券交易法方面，也有許多司法裁判值得關注，所涉議題範圍很廣。總之，2013年在公司法及證券交易法，修法內容在公司治理方面，有很多的發展。本文將由公司法之發展進行回顧，先介紹二次公司法修正之主要內容，接著為證券交易法之主要修正內容。在法制發展回顧整理之後，將分別針對2013年公司法與證券交易法重要案例進行介紹討論，並以最高法院裁判為主要討論範圍。最後為結論。

The year of 2013 is a very productive year for the development of corporate law and securities law. There were two amendments for the Company Act. Both were promulgated in January. There was only one amendment for the Securities and Exchange Act on June 5, 2013. The major revisions on the Company Act include the following subjects: (1) statutory removal of directorship; (2) introduction of piercing corporate veil doctrine. In Securities and Exchange Act, the revision is regarding the timing for filing the Declaration of Internal Control by the company. Basically, the amendments of corporate and securities law in 2013 has a focus on enhancing the corporate governance. In addition to those amendments, there were many cases worth of reading. This article will introduce some cases in the corporate and securities laws decided in 2013, particularly those decided by the Supreme Court. Issues of corporate law cases involve the validity of the board meeting resolution if corporate supervisors are not duly notified, the validity of the transactions between directors and the corporation if not represented by a corporate supervisor required by law, validity of board meeting resolutions if interested directors participate voting. Issues of securities law cases involve whether stabilizing the share price for public offering purpose constitutes market manipulation, and whether it is important to identify the time of the occurrence of material information in insider trading cases.