Matthew Niederbaumer, of Huron, South Dakota, a stockbroker currently registered with Thrivent Investment Management Inc., was fined $5,000.00 and suspended from associating with any Financial Industry Regulatory Authority (FINRA) member in any capacity after consenting to findings that he effected unauthorized trades in a customer’s account. Letter of Acceptance, Waiver and Consent, No. 2016050492401 (Dec….