vesting
noun[U]
LAW,FINANCE,STOCK MARKETuk/ˈvestɪŋ/usaprocessgivingemployeestherighttokeeptheshares,pensionplans, etc. given to them by acompanyafterworkingthere for anagreedperiod:
He took in $19 million from the vesting ofstockawardshe hadreceivedinpreviousyears.