Luke Lannister: FINRA Suspends Ex-Grove Point Advisor

Former Rockville, Maryland financial advisor Luke Lannister (CRD# 6317373) was recently sanctioned and suspended in connection with alleged rule violations. Financial Industry Regulatory Authority records show that he was most recently registered as a broker with Grove Point Investments, having previously been registered with CUSO Financial Services.

A Letter of Acceptance, Waiver, and Consent (No. 2023079960501) describes FINRA’s disciplinary action against Mr. Lannister. Filed in September 2025, it details findings that he used discretion in the accounts of two customers without prior written authorization. While authorizing this unauthorized discretionary power, he allegedly effected 261 transactions. “Although the customers generally understood that [Mr.] Lannister was exercising discretion in their accounts,” FINRA found, “neither gave him prior written authorization to do so, and Grove Point did not accept the accounts as discretionary.”

In addition to using time and price discretion, the letter states, he also exercised discretion “with regard to which securities to purchase and sell and in what amounts.” He also allegedly made inaccurate statements on two compliance questionnaires submitted to his member firm, representing “that he had not exercised discretion in customer accounts without express written approval from the firm.” As a result of these findings, FINRA issued him a two-month suspension from associating with any member firm in all capacities. It also ordered him to pay a fine of $5,000.

Mr. Lannister’s BrokerCheck report discloses three investor complaints. The most recent, filed in 2023, alleged that as a representative of Grove Point Investments, he made misrepresentations, churned the account, and placed discretionary trades without the customer’s permission. The complaint reached a settlement of $41,850.18.

A second investor complaint, filed in 2023, alleged that as a Grove Point Investments representative, he made unapproved discretionary trades in unsuitable stocks. The complaint reached a settlement of $30,000. “I do not agree with the allegations made by the client, the client signed all necessary paperwork to establish a transactional-based commission account,” he wrote in a statement included with the disclosure. “All trades were placed with the express consent of the client. The client had made a sizeable gross return in relation to trade commissions.”

A fourth disclosure on his BrokerCheck report concerns his termination from Grove Point Investments. Filed in 2023, it states that the firm fired him in connection with allegations he “charged excessive commissions and engaged in unapproved discretionary trading.”

According to the Financial Industry Regulatory Authority, Luke Lannister holds eight years of securities industry experience. Most recently based in Rockville, Maryland, he was registered with Grove Point Investments from 2021 until 2023. His past registrations include CUSO Financial Services, Capital One Investing, and NFP Advisor Services. He is not currently registered with any FINRA firm. (Information current as of October 1, 2025.)

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