Following the sack of Monarchia, the Primarch Lorgar Aurelian would travel with the Serrated Sun on the Pilgrimage, where members of the 7th Company would become the first of the Gal Vorbak. Most of the chapter would be wiped out during the Drop Site Massacre, and Chapter Master Argel Tal would form the Vakrah Jal in its place.
- Argel Tal - Last Chapter Master of The Serrated Sun Chapter.
- Xaphen - Chaplain of the 7th Assault Company[2a]
- Deumos - Deceased Chapter Master of The Serrated Sun Chapter, succeeded by Argel Tal, Captain of The 7th Assault Company.
- Nimur Ennat - Captain of the 5th Heavy Assault Company.[1b]
- Apis Merenkar - Legionary of the 7th Assault Company, Nimarros Tactical Squad.[1c]
- 1: The Horus Heresy Book Two - Massacre
- 2: The First Heretic (Novel), Chapter 19
- 2a: Dramatis Personae
- 3: Betrayer (Novel), [Needs Citation]