13D Filing: Leucadia National and Fiesta Restaurant Group Inc. (FRGI)

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This Amendment No. 3 amends the Statement on Schedule 13D first filed by Leucadia National Corporation
(Leucadia) on behalf of itself and its controlled subsidiaries (the Reporting Person) with the Securities and Exchange Commission on June 19, 2017, as amended by Amendment No. 1 filed on
August 18, 2017 and Amendment No. 2 filed on August 31, 2017 relating to the Common Stock, par value $0.01 per share (the Common Stock), of Fiesta Restaurant Group, Inc., a Delaware corporation (the
Issuer). The principal executive offices of the Issuer are located at 14800 Landmark Boulevard, Suite 500, Dallas, Texas 75254. Capitalized terms used herein but not otherwise defined herein have the meanings given to them in the
Schedule 13D.

Item 3. Source and Amount of Funds or Other Consideration.

From August 9, 2017 through September 10, 2017, the Reporting Person purchased an aggregate of 960,289 shares of Common Stock. The securities were
acquired by the Reporting Person using cash from working capital in the amount of approximately $16.8 million.

Item 4. Purpose of Transaction.

The Reporting Person purchased the Common Stock reported herein for investment purposes. The Reporting Person intends to purchase additional shares of
Common Stock from time to time, if, at such time, the terms of such investment are favorable to the Reporting Person and the Reporting Person deems the investment to be prudent.

Other than described above, the Reporting Person does not have any plans or proposals of the type referred to in Items 4(a) through (j) of Schedule 13D.
The Reporting Person, however, retains the right to change its intent and to pursue any transaction contemplated in Items 4(a) through (j) of Schedule 13D and, to the extent the Reporting Persons affiliates operate as broker-dealers, they
retain the right to pursue a role as a financial advisor, underwriter or placement agent with respect to any such transaction involving the Issuer and its affiliates.

Item 5. Interest in Securities of the Issuer.

Number of shares as to which the Reporting Person has:

Sole power to vote or to direct the vote: 2,316,584

Shared power to vote or to direct the vote: 0

Sole power to dispose or to direct the disposition of: 2,316,584

Shared power to dispose or to direct the disposition of: 0

During the past sixty days, the Reporting Person engaged in the following open market purchases of Common Stock:

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On August 9, 2017, the Reporting Person purchased 50,000 shares of Common Stock at a weighted average price per share of $18.9920.

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On August 10, 2017, the Reporting Person purchased 60,000 shares of Common Stock at a weighted average price per share of $18.7117.