First of all there isn't such thing as "miner's wallets", we only see coinbase outputs and where they end up. Since majority of miners are connecting to pools, the coinbase outputs are usually spent in a short time after their maturity because the pool has to pay its miners. And as those coins move we no longer know where they ended up, it may be a personal cold storage of the miner or it may be sold to someone else or even transferred to an exchange (even if it remains unspent).
Also just because some coins move that doesn't mean those coins were sold. It may simply be moved between addresses for whatever reason such as consolidating outputs. This is the same problem with "whale alert" nonsense.
Topic: Miners Total Stopped Selling lowest outflow for long time (Read 118 times)
I'm quite surprised to see the peaks at the dips but I think it's probably the case that they're holding out for a new ath or something to happen.
Miners still total stopped selling 
https://ibb.co/35X3hBK[/
When 60k breaks soon we will fly up to 65-66k
https://ibb.co/35X3hBK[/
When 60k breaks soon we will fly up to 65-66k
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