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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.

People looking to place certain bets on prediction market operator Kalshi will soon have to reveal where they work in an attempt to stop insider trading, the firm has said.

From BBC • Jun. 9, 2026

An advisory committee recommended tighter security measures to combat potential insider trading and market manipulation.

From The Wall Street Journal • Jun. 9, 2026

Kalshi said it would use a risk scoring method to identify markets that appear more at risk of manipulation or insider trading, such as those on national security matters.

From BBC • Jun. 9, 2026

And a problem for market bulls is that such a capex reduction may coincide with two classic markers that Perkins believes usually accompany a market top: insider selling and monetary tightening.

From MarketWatch • Jun. 5, 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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