https://www.cnet.com/news/sigma-105mm-f1-4-lens-will-ship-in-june-for-1600/

Sigma's latest addition to its Art line of wide-aperture lenses seems like it's on the pricey side at $1,600, but when you consider that only Nikon offers a similar model for twice as much, this feels like a bargain if you can afford it. 

Sigma plans to ship the 105mm F1.4 DG HSM full-frame lens in June in Canon, Nikon and Sigma mounts, with a Sony E to follow at an unspecified date.