placement oversubscribed at 54 cents, page-13

re: placement oversubscribed If the Record date for participation is CoB Friday 23 May, does that mean that Monday19 May at 4pm is the latest possible time to sell the OXR "with entitlement"shares ?
I was expecting a last burst of selling by short term traders and others who dont want to stump up more cash.
Bought half now, intend to buy the balance just before the 'ex' date

Thanks Alpha for the pointers to past price behavior