*Comparable sales represent total U.S. food and beverage sales at owned and managed units opened for at least a full 18-months. This measure includes total revenue from our owned and managed locations. Two-year comparable sales relate to the comparison of comparable sales for the period 10/1/2021––12/31/2021 to the period 10/1/2019––12/31/2019, and for the period 1/1/2021-12/31/2021 to the period 1/1/2019––12/31/2019. The Company monitors sales growth at its established restaurant base in addition to growth that results from restaurant acquisitions; the Company has presented two-year comparable sales to illustrate how sales at its restaurant base before the COVID-19 pandemic compare to sales as COVID-19 restrictions have eased and the Company has reopened in-person dining.
** Adjusted EBITDA. We define Adjusted EBITDA as net income before interest expense, provision for income taxes, depreciation and amortization, non-cash impairment loss, non-cash rent expense, pre-opening expenses, non-recurring gains and losses including incremental costs related to COVID-19, stock-based compensation and certain transactional costs. Adjusted EBITDA has been presented in this press release and is a supplemental measure of financial performance that is not required by, or presented in accordance with, GAAP. Refer to the reconciliation of Net Income to Adjusted EBITDA in this release.
***Restaurant Operating Profit. We define Restaurant Operating Profit as owned restaurant net revenue minus owned restaurant cost of sales and owned restaurant operating expenses. Restaurant Operating Profit has been presented in this press release and is a supplemental measure of financial performance that is not required by, or presented in accordance with, GAAP. Refer to the reconciliation of Operating income (Loss) to Restaurant Operating Profit in this release.
****Adjusted Net Income (Loss). We define Adjusted Net Income as net income before gains on CARES Act Loan forgiveness, COVID-19 costs, lease termination expenses, one-time stock-based compensation and the income tax effect of the adjustment. Adjusted Net Income has been presented in this press release and is a supplemental measure of financial performance that is not required by, or presented in accordance with, GAAP. Refer to the reconciliation of Net Income (Loss) to Adjusted Net Income in this release.
Fourth Quarter 2021 Financial Results
Total GAAP revenues increased $39.1 million, or 86.8%, to $84.1 million in the fourth quarter of 2021 from $45.0 million in the fourth quarter of 2020.
Total owned restaurant net revenues increased $35.7 million, or 81.7%, to $79.4 million in the fourth quarter of 2021 from $43.7 million in the fourth quarter of 2020. The increase was due to strong sales as state and local governments eased seating capacity restrictions in the markets in which we operate, coupled with strong execution of our sales initiatives. Consolidated comparable sales* increased 49.8% from the fourth quarter of 2019. On a two-year basis, STK comparable sales increased 60.0% while Kona Grill comparable sales increased 38.2%.
Management, license and incentive fee revenues increased $3.4 million, or 262.0%, to $4.6 million in the fourth quarter of 2021 compared to $1.3 million in the fourth quarter of 2020. The increase was the result of local governments easing seating capacity restrictions in the markets in which we operate, coupled with the opening of two managed STKs, one licensed STK, and three managed F&B venues during 2021.
Restaurant Operating Profit*** increased to $16.2 million and represented 20.4% of Company-owned restaurant net revenues in the fourth quarter of 2021 compared to $7.0 million and 16.0% of Company-owned restaurant net revenues in the fourth quarter of 2020. The improvement was primarily driven by higher sales and strong management of operating costs coupled with menu development and optimization as restaurants re-opened. STK Restaurant operating profit was $11.1 million and represented 24.8% of Company-owned restaurant net revenues compared to 18.3% in the prior year. Kona Grill operating profit was $5.1 million and represented 14.9% of Company-owned restaurant net revenues compared to 11.9% in the prior year.
GAAP net income attributable to The ONE Group Hospitality, Inc. in the fourth quarter of 2021 was $5.8 million, or $0.17 per share, compared to GAAP net loss of $4.5 million, or $0.15 net loss per share, in the fourth quarter of 2020.
Adjusted Net Income**** attributable to The ONE Group Hospitality, Inc. in the fourth quarter of 2021 was $8.2 million, or $0.24 per share, compared to adjusted net loss of $1.2 million, or $0.04 net loss per share, in the fourth quarter of 2020.
Adjusted EBITDA** increased to $13.3 million in the fourth quarter of 2021 from $4.1 million in the fourth quarter of 2020.
Fiscal 2021 (Full Year) Financial Results
Total GAAP revenues increased $135.2 million, or 95.3%, to $277.2 million in 2021 from $141.9 million in 2020.