Perhaps tidying up loose ends before starting a new job and because they were expiring in a couple of months. Lorry has put a lot of work into IRC I would be very surprised in he sold out completely after working to set a foundation for the company to be built on, I think he's responsible for a lot of IRC' current tenement package. He has a lot of shares in his super account(s).
It would be far more likely he has recently sold shares to fund the option exercise than he' about to sell the converted 2.3mill shares.
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