So more then likely some big institution pulled their coins out, probably to calm their investors. Proving that they have it and it is safe. Not a big deal, and between the article and what we have discussed here spent more time discussing a non event then it's worth.

If, picking on a random brokerage, E*Trade pulled a bunch of cash out of one bank to bring it in house it would not even make the press.
If a investment fund switched some back end stuff around as to who held their investments if they did not do it in house it might make a line or 2 of text in places like Bloomberg.

-Dave