Ann: Payment Commitment to Mutual Holdings Pty Ltd, page-38

I agree with the posters above in that while it was an unwelcome reminder of long-past (forgotten by many) deals, it is a positive sign that they put it out in the light of day, early in the week. My reading is that the debt needed to be documented and seen as transparent by the Saudis, suggesting that negotiations are progressing positively.
Given the potential value of the asset, the debt will not be significant to the enterprise when (eventually) paid, and at least avoids further dilution.
The recent selling was more to do with recent cap raise contributors selling than inside knowledge - IMO.