Mallinckrodt : Net Debt Leverage Q4 2020 03-10-2021

March 10, 2021

NET DEBT LEVERAGE RATIO (NON-GAAP FINANCIAL MEASURE)

Mallinckrodt plc and its subsidiaries (collectively, "the company") may from time to time reference net debt leverage ratio in its public communications, which is considered a "non-GAAP" financial measure under applicable U.S. Securities and Exchange Commission rules and regulations.

Net debt leverage ratio is a key financial measure that is used by management to assess the borrowing capacity of the company. The company has defined its net debt leverage ratio as net debt (total principal debt outstanding less unrestricted cash) divided by adjusted EBITDA for the trailing twelve month period. Adjusted EBITDA for purposes of the net debt leverage ratio represents net loss, prepared in accordance with accounting principles generally accepted in the U.S. ("GAAP"), adjusted for interest expense, taxes, depreciation and amortization, certain items that management believes are not reflective of the operational performance of the business and additional adjustments as allowable under the company's credit facility. These adjustments include, but are not limited to, non-restructuring impairment charges; restructuring charges, net; inventory step-up expense; discontinued operations; changes in fair value of contingent consideration obligations; losses on divestiture; significant legal and environmental charges; separation costs; research and development ("R&D") upfront payments; gains on debt extinguishment, net; unrealized gain on equity investment; reorganization items, net and other items identified by the company.

This adjusted measure should be considered supplemental to and not a substitute for financial information prepared in accordance with GAAP. The company's definition of this adjusted measure may differ from similarly titled measures used by others or similar metrics used by the company for debt covenant compliance.

Because adjusted financial measures exclude the effect of items that will increase or decrease the company's reported results of operations, Mallinckrodt strongly encourages investors to review the company's consolidated financial statements and publicly filed reports in their entirety. A reconciliation of the net debt leverage ratio to GAAP net loss is included in the following table.

NET DEBT LEVERAGE RATIO 1:

Twelve Months Ended

December 25, 2020

Total debt	$	5,283.3
Less: Unrestricted cash	1,070.6
Net debt	$	4,212.7
GAAP Net Loss:
Twelve months ended December 25, 2020	$	(944.6)
Trailing twelve months adjustments:
Interest expense	261.1
Income taxes	8.9
Depreciation	114.0
Intangible asset amortization	771.2
Non-restructuring impairment	63.5
Restructuring charges, net	37.5
Discontinued operations	(25.1)
Change in fair value of contingent consideration obligations	9.9
Losses on divestiture	(16.6)
Significant legal and environmental charges	653.4
Non-cash share-based compensation	25.3
Separation costs	93.4
R&D upfront payment	5.0
Unrealized gain on equity investment	(3.8)
Other income, net	(3.5)
Reorganization items, net	61.4
Other credit facility addbacks	10.0
Adjusted EBITDA	$	1,121.0
Net Debt Leverage Ratio:	3.8

(1)The Net Debt Leverage Ratio is calculated in accordance with the company's Credit Agreement dated as of March 19, 2014 (as amended, restated, supplemented or otherwise modified) and used for the purpose of testing the financial covenant in Section 6.12 of this agreement.