Exhibit 99.5

BENEFICIAL OWNER ELECTION FORM

The undersigned acknowledge(s) receipt of your letter and the enclosed materials referred to therein relating to the distribution in a rights offering (the “Rights Offering”) by The LGL Group, Inc. (the “Company”), to the holders of record of its common stock, par value $0.01 per share (the “Common Stock”), as of 5:00 p.m., Eastern Time, on September 5, 2017 (the “Record Date”). The Record Holders will receive, at no charge, transferable subscription rights (the “Subscription Rights”) to purchase up to an aggregate of 2,006,598 shares of Common Stock (the “Shares”) at a subscription price of $5.50 per whole Share (the “Subscription Price”).

Each Record Holder will receive three Subscription Rights for each share of the Common Stock that such Record Holder owned on the Record Date. Each Subscription Right allows the holder thereof to subscribe for one-fourth of a share of Common Stock (the “Basic Subscription Right”) at the Subscription Price. For example, if a Subscription Rights holder owned 100 shares of Common Stock as of the Record Date, it would receive 300 Subscription Rights and would have the right to purchase 75 shares of Common Stock for the Subscription Price per share with the Basic Subscription Right. If a Subscription Rights holder fully exercises his Basic Subscription Right (other than those rights to acquire less than one whole share of Common Stock, which cannot be exercised) and other stockholders do not fully exercise their Basic Subscription Rights, he may also exercise an over-subscription right (the “Over-Subscription Right”) to purchase additional shares of Common Stock that remain unsubscribed at the expiration of the Rights Offering (such shares, the “Unsubscribed Shares”), subject to availability and pro rata allocation of shares among persons exercising their Over-Subscription Right. The Company will not issue fractional shares of Common Stock in the Rights Offering. If the number of Subscription Rights exercised by the holder thereof would otherwise permit such holder to purchase a fraction of a share, the number of Common Stock that such holder may purchase will be rounded down to the nearest whole share.

With respect to any instructions to exercise (or not to exercise) Subscription Rights, the undersigned acknowledges that this form must be completed and returned such that it will actually be received by you by 5:00 p.m., Eastern Time, on October 10, 2017, the scheduled expiration date of the Rights Offering.

This will instruct you whether to exercise Subscription Rights to purchase Shares distributed with respect to the shares of Common Stock held by you for the account of the undersigned, pursuant to the terms and subject to the conditions set forth in the Prospectus and the related “Instructions for Use of The LGL Group, Inc. Subscription Rights Certificate.”

I (we) hereby instruct you as follows:

(CHECK THE APPLICABLE BOXES AND PROVIDE ALL REQUIRED INFORMATION)

Box 1. ☐ Please DO NOT EXERCISE SUBSCRIPTION RIGHTS for Shares.

Box 2. ☐ Please EXERCISE SUBSCRIPTION RIGHTS for Shares as set forth below:

Box 3. ☐ Payment in the following amount is enclosed: $                    

I (we) on my (our) own behalf, or on behalf of any person(s) on whose behalf, or under whose directions, I am (we are) signing this form:

If you are signing in your capacity as a trustee, executor, administrator, guardian, attorney-in-fact, agent, officer of a corporation or another acting in a fiduciary or representative capacity, please provide the following information: