@WealthHustler, He's looking at large BTC volume transfers from one wallet to another over the course of the last 3 years. From what I can tell, they've either been losing money or cashing out portions over time. The balance began at 30,000 BTC in 2015, they transferred it out to a different wallet which then decreased in volume, rinse and repeat for each yellow line above.
I'm unsure of the 2013 line though. I couldn't trace the transactions further back than 2015.
@Kryones, Exactly this. They actually go back to 2010 with newly minted btc from miner activity creating that 30k sum you mentioned. It then turned to the 22k. It feels like over the counter sales transfering hands imo. But whats interesting is how the only activity is perfectly timed with major market pivots.