Securities and Exchange Commission

American  

noun

1. SEC.

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Securities and Exchange Commission British  

noun

1.  SEC.  a US federal agency established in 1934 to supervise and regulate issues of and transactions in securities and to prosecute illegal stock manipulations

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Securities and Exchange Commission Cultural  

1. A federal agency that supervises the exchange of securities so as to protect investors against malpractice, such as insider trading.

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Example Sentences

The Securities and Exchange Commission, Treasury Department and bank regulators have stepped up inquiries into risks in the roughly $3 trillion private-credit sector, the Wall Street Journal reported.

From MarketWatch • Apr. 23, 2026

That day, Seyfert had yet to pour his first cup of coffee when he saw that a regulatory filing mentioning his company had just hit the website of the Securities and Exchange Commission.

From The Wall Street Journal • Apr. 21, 2026

Late Friday, the company disclosed in a filing with the Securities and Exchange Commission that Neugebauer had stepped down as CEO but will remain on the board of directors.

From MarketWatch • Apr. 20, 2026

The Securities and Exchange Commission just moved to drop the “pattern day trader” rule that required frequent traders to keep at least $25,000 equity in their margin account.

From Barron's • Apr. 15, 2026

The Securities and Exchange Commission later said that those figures were “false and misleading,” in part because the sale price for the headquarters had been overvalued by as much as $40 million.

From "Friday Night Lights: A Town, A Team, And A Dream" by H.G. Bissinger