Using the data in Founder's at Work, and making some reasonable assumptions about the dilution of each round, his Viaweb exit was personally worth (before-tax)

Using the data in Founder's at Work, and making some reasonable assumptions about the dilution of each round, his Viaweb exit was personally worth (before-tax) ~$10M in June, 1998. The exit was in Yahoo stock, which would gain ~17x, reaching a high of $118.75 a year and 1/2 later. So, anywhere from $10M - 170M from Viaweb.