There’s examples going back years to when they released the third party sales product, CartaX.

Funnily there were internsl signs that there were problems with this product before it launched:

“Andrea Walne, Carta's head of liquidity solutions, was pushed out after she raised concerns about regulatory compliance [of CartaX].” - https://www.nytimes.com/2020/08/30/business/carta-workers-in...