Some or all of these may have been posted already, but just to play catch up here are the current sales.
Today only Marvel sale on Ant Man books, 36 $.99 singles.
https://www.comixology.com/Ant-Man-Wasp-Sale/page/9016
The weekly sale from DC is on Robin, 317 $.99 singles ends 12/07/15.
https://www.comixology.com/Robin-War-Sale/page/8923
Street Fighter sale from Udon until 12/07/15, 13 collections, 55 $.99 singles, and 3 freebies.
https://www.comixology.com/Street-Fi...Sale/page/9010
Star Trek collection sale from IDW until 12/07/15 is frustrating in the I should have waited way. 43 different collections at various prices, or all in a bundle for $99. Of course, I already own 19 of these collections, so I 'wasted' ~ $80. I'll still save $24 over buying the remaining ones individually, but I really wish Comixology would pro-rate bundles.
https://www.comixology.com/Star-Trek-Sale/page/8888
Tank Girl sale from Titan, 13 $.99 singles.
https://www.comixology.com/Tank-Girl-Sale/list/9091
Black Friday sale from Kodansha, 3 $.99 singles.
https://www.comixology.com/Kodansha-...Sale/list/9128