Ann: BTX 1801 Kills Superbugs Without Resistance World-First, page-475

You can choose the parcels you sold on the basis that all parcels are fungible.

I.e. you bought 200 shares 2 years ago then 200 a month ago and then sold 200 today all with the same broker and held under same HIN/SRN you could choose to which parcel was sold (may choose the later parcel if it was in a loss position).

what you cannot do is choose the parcel where they are separately identifiable (i.e. different HIN/SRN or brokers).

Furthermore, the timing is based on the contract date (execution date and not settlement) and the 12 months has to be determinrd excluding the day bought and day sold.

All of this, of course, is advice of a general nature and you should seek advice from your accountant or similarly qualified advisor for your specific circumstances.