內幕交易，指內幕交易; 內線交易。
insider trading：the securities laws broadly prohibit fraudulent activities of any kind in connection with the offer,purchase,or sale of securities. these provisions are the basis for many types of disciplinary actions,including actions against fraudulent insider trading. insider trading is illegal when a person trades a security while in possession of material nonpublic information in violation of a duty to withhold the information or refrain from trading.
聯邦法律完全禁止任何與發行、銷售或購買**有關的欺詐行為。 這種禁令是許多懲罰行為的基礎，包括對欺詐性內部交易的處罰。 任何人違反尚未公開的重要資訊的保密義務從事相關內部交易，或者因擁有該資訊而違反不進行相關交易的義務從事相關內部交易，均屬違法。
當乙個人從事交易而違反其保留資訊的義務或在擁有重要的非公開資訊時避免交易時，內幕交易是非法的。
相關法律法規：
《刑法》第180條：
* 知悉交易內幕資訊的人或者非法獲取交易內幕資訊的人，在**披露前出售、披露對**的發行、交易有重大影響的資訊或者對**有重大影響的其他資訊，情節嚴重的，處五年以下有期徒刑或者拘役; 及/或處違法所得數額不少於一倍以上五倍的罰款;情節特別嚴重的，處五年以上十年以下有期徒刑，並處違法所得一倍以上五倍以下罰金。
參考雙語例句：
insider trading means engaging in transactions in a company’s securities (for example, buying or selling a company’s stock), while aware of “material nonpublic information” about the company or its securities.
內幕交易是指在知悉有關公司或其**的“重大非公開資訊”的情況下，參與公司的交易（例如，購買或出售公司**）
there are no other restrictions on the transfer of ordinary shares in the company except: (1) certain restrictions may from time to time be imposed by laws and regulations (for example insider trading laws); 2) pursuant to the company’s share dealing code whereby the directors and certain employees of the company require approval to deal in the company’s shares; and (3) where a shareholder with at least a 0.25% interest in the company’s issued share capital has been served with a disclosure notice and has failed to provide the company with information concerning interests in those shares.
除以下情況外，對公司普通股的轉讓沒有其他限制：（1）法律法規不時施加的某些限制（如內幕交易法）; （2） 根據本公司股票交易守則，本公司董事及若干雇員必須獲得批准才能買賣本公司股份; （3） 擁有至少 0擁有25%權益的股東已收到披露通知，但無法向公司提供有關股份權益的資訊。
with regard to the fight against terrorism, the republic of san marino has adopted law n. 28 of 26 february 2004, “provisions on anti-terrorism, anti-money laundering and anti-insider trading”, which punishes anyone participating in terrorist acts or promoting, establishing, organizing, directing or financing associations that aim at perpetrating violent acts for the purpose of terrorism or, finally, providing participants in terrorist association with assistance or aid in any form.
關於打擊恐怖主義，聖馬利諾共和國於2004年2月28日通過了題為“關於打擊恐怖主義、反洗錢和內幕交易的規定”的第28號法令，其中規定，任何人參與恐怖主義行為或宣傳或促進、建立、組織、指揮或資助恐怖主義暴力行為，或向恐怖集團提供任何形式的援助或援助。