If the market was open and they let the cat out with as many filings as they did, most would have, without thinking scream foul and dump their shares into the market... well they caught some people off guard but if you really look at the filings, they were already done and gone. It was just a clean up so they can complete the upcoming 10K.
It's not strange at all; only to the unexperienced and novice trader/investor who don't really know how the market works. You need to look at all angles.
But of course you knew this already... you just were bringing it to everyone else's attention.