First rule of watching the stock markets: Sales mean little. Watch who buys things, because that indicates actual interest. Sales might be liquidity questions,

First rule of watching the stock markets: Sales mean little. Watch who buys things, because that indicates actual interest. Sales might be liquidity questions, rebalancing, any number of issues. So, what's Panasonic doing that indicates their interest? Turns out, they have a Toyota partnership. Panasonic is trying to get into the European market. Panasonic formed a partnership in Norway to build batteries. So, most likely that sale is a signal that a) Panasonic is ready to get deeply into the battery business, and b) a signal to their other customers that they don't have conflicting interests. (I mean, yes, Tesla is also a bad deal, but the market still disagrees)