SAN FRANCISCO--(BUSINESS WIRE)--Presidio Bank (OTCBB:PDOB), a Bay Area business bank, reported that the Bank has set September 30, 2015 as the redemption date for all of its outstanding Series A and Series B non-cumulative preferred stock. The Bank will redeem the preferred shares at par for a total redemption price of $6,869,000. The redemption will result in estimated annual savings of $618,210, due to the elimination of payment of dividends on the redeemed shares. About Presidio Bank Presidi