Coleman J. Devlin, a stockbroker formerly registered with Stifel, Nicolaus & Company, Inc., has been fined $5,000.00 and suspended from associating with any FINRA member in any and all capacities based upon allegations that he placed trades in the firm’s customer accounts without having authorization. Letter of Acceptance, Waiver and Consent, No. 2016050359301 (Oct. 18,…