Tracking BlackRock and Blackstone SFR Acquisitions

[Alessandra Verbena]

How do I track what BlackRock and Blackstone are up to when it comes to real estate and specifically single-family acquisitions? 

I heard they were releasing some of their single-family home purchases in the Phoenix area but I don't know if this was small profit-taking to balance the books or a sizeable release of homes back onto the market. 

In general, I want to understand better their movement when it comes to home acquisitions and sales and what this could mean for the larger real estate market as they are not the only but still an important factor in the scarcity we are seeing in the housing supply in the U.S. I tried perusing the investor relations portions of their websites, but I find this information hard to find and could use some help.