Well irony is when the facts clearly say that whales are getting bigger and bigger using market manipulation people still think that we are moving towards more even distribution. I don't think there is any even distribution happening around. There is still a pretty wide gap between the early adopters and the late adopters and taking in consideration the current scenario of market manipulation i highly doubt that this thing is going to improve any time soon.

Or it could be that a lot of exchange platforms are diversifying their assets into different hot and cold wallets in order to minimize the risk of having their balances emptied in one fell sweep. But yeah, it's not really a secret that every time the price falls, loads of people are buying bitcoins in order to gain some profit, though the reason why the richy rich are keeping them in one huge chunk is still unclear.

Well.. if they use a hierarchical deterministic wallet they can access a large number of addresses with the same mnemonic phrase or seed phrase. They could split the Bitcoins in different addresses to minimise the risk also and store the private keys in different places so if one got stolen you still remain with the other ones.

I believed that institutional investors have been accumulating BTC for a long time, even pre 2016 and evidently in 2017 wherein we reached our peaked that December. Obviously, when you hold so much Bitcoin you have to split it in several wallets for security purposes. In a event of a breach or hack only one wallet would be affected. I guess it's a norm for huge bag holders around, or even average joes do that practice as well so there's no secret in there and could be considered as best practice in crypto community.

We don't know if they are from the institutions but it's likely it is.

This could be their cold storage and prefer not to touch them for safekeeping.

Both are always of a possibility that an individual is keeping huge amount of bitcoin and prefer to stay lowkey or it could be those 'experts' that gets attention by giving their analysis to the market.  

The nicest feature of Bitcoin is it's pseudo anonymity, so we can speculate as much as we want to on who the owners of those addresses are, but we will never know who it is.    In all likelihood this will change over time, because more and more people are starting to use services with KYC/AML requirements and the flow of bitcoins would be possible with these services. 

For all we know, this might just be a couple of whales sorting their whole hoard into more manageable bundles and not institutional investors entering the Bitcoin scene. <Most institutional investors are not allowed to trade people's money on unregulated investment tools.> 

It's interesting to know about these adresses

I don't think it makes any difference abou the security because with so many BTC, they probably have a strong security to keep them safe

things i can see from the charts

the top chart of the topic shows 2100 addresses of MINIMUM1k coins. meaning WAY MORE than 2.1mcoins are hoarded in 2100 addresses
according to https://btc.com/stats/rich-list ~7mill coins are hoarded in addresses ofmore than 1000coins


separetly the other chart about known exchange holdings only shows 1.2m are hoarded by known exchange addresses
this means out of 7mill coins.. known exchanges are only hoarding under 20% of it

it also reveals many other things
many people are depositing into exchanges but not that many are withdrawing out. just look at the smooth upcurve on the exchange chart.
with only small waves of dips that dont seem to counter the upcurve by much

Whoever own those Bitcoin must be concerned with the security that is why they use multiple addresses rather than a single one though some will not be agreeing with this measure. The increase of the number of addresses holding over 1000 Bitcoin can be explained in  lot of scenarious but we are just actually speculating here. Yes, this can mean more new users getting into Bitcoin or just old members of the gang adding more Bitcoin holdings. We are all dreaming that Bitcoin be evenly distributed to as much people as possible and not just concentrated on the so-called whales but we know that economic realities are coming in to the picture. We are no more at the beginning phase where the coins can be spread by means of maybe a faucet or an airdrop. Right now, though, I am really wondering if there would be effective ways we can do so that more and more people all over the world can be participating in the Bitcoin revolution.