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Definitions

insider

[in-sahy-der] / ˌɪnˈsaɪ dər /


NOUN
cognoscente
Synonyms
Antonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Rocket Lab stock fell 15% to $122.39 on Monday, following a rally in May and significant insider sales.

From Barron's • Jun. 3, 2026

DOJ is investigating former congressman George Santos for insider trading on Kalshi.

From MarketWatch • Jun. 3, 2026

David Miller, the CFTC’s enforcement chief, has said insider trading on prediction markets is “a real problem.”

From The Wall Street Journal • Jun. 3, 2026

That makes AI agents a two-pronged insider risk, she said.

From The Wall Street Journal • Jun. 2, 2026

This was also the time that Ellsberg made the unsettling discovery that he was not quite the insider he’d thought he was.

From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin




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