AninvestorhasdinnerwithapersonalfriendwhoistheCEOofapubliclytradedcompany.Thefriendtellstheinvestorhehasjustlearnedthathiscompanyisabouttobeacquiredbyanothercompanyatasubstantialpremiumtothecurrentstockpriceandthatthisinformationwillbereleasedtothegeneralpublicinoneweek.Theinvestorbuysalargeblockofthecompany’sstockthefollowingday.Thisscenarioisanexampleof: