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The illegal buying or selling of securities on the basis of information that is unavailable to the public.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
the illegal buying and selling of securities by persons acting on privileged information.
in′sider trad′er, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||insider trading - buying or selling corporate stock by a corporate officer or other insider on the basis of information that has not been made public and is supposed to remain confidential|
trading - buying or selling securities or commodities
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