Watch more: The Digital Shift: Block’s Owen JenningsBy completing this form, you agree to receive marketing communications from PYMNTS and to the sharing of your information with our sponsor, if applicable, in accordance with our Privacy Policy and Terms and Conditions .When Owen Jennings joined Cash App a decade ago, it was a simple way to send money to a friend. Now it’s one of the largest consumer finance platforms in the country, home to the fourth largest debit card program in the United States and mil ...