Yes, it went through as an on-market block trade ~1 hr prior to...

Yes, it went through as an on-market block trade ~1 hr prior to yesterday's open. Based on usual trading norms* you'd think that since it went through as a single trade then it went to a single buyer. If that assumption holds true, then it would trigger a F603 due sometime this week.

(*Just a bit of a caveat that I don't know the precise mechanics of the Block Trade facility. That is, whether multiple buy-side purchases from different buyers can be bundled together to match the single sell-side block offer. If that's possible and happened, then it's quite foreseeable there might be no inbound F603 (because multiple buyers and no new 5%+ holder). I tend to lean towards assuming the more traditional approach, being one buyer for one seller per on-market trade, regardless of the ASX platform the sale goes through.)