Catalyst Pharmaceuticals (CPRX) 8-K Catalyst Pharmaceuticals Announces Fourth Quarter and Year-End 2020 Financial Results and Provides Corporate Update

Exhibit 99.1

Catalyst Pharmaceuticals Announces Fourth Quarter and Year-End 2020 Financial Results and Provides Corporate Update

- Firdapse® Q4-20 Net Revenues of $31.0 Million, FY-20 Net Revenues of $119.1 Million

- GAAP Net Income of $75.0 Million for Fiscal Year 2020

- $140.3 Million in Cash and Investments and No Funded Debt

- Company to Host Quarterly Conference Call at 8:30 am ET Tomorrow

CORAL GABLES, Fla., March 15, 2021 (GLOBE NEWSWIRE) — Catalyst Pharmaceuticals, Inc. (Catalyst) (Nasdaq:CPRX), a commercial-stage biopharmaceutical company focused on developing and commercializing innovative therapies for people with rare debilitating, chronic neuromuscular and neurological diseases, today reported financial results for the fourth quarter and year ended December 31, 2020 and provided a corporate update.

“We are extremely pleased with our continued commercial execution of the Firdapse® launch during 2020. Despite the challenges of dealing with COVID-19, we were able grow our revenues 16% during 2020 over 2019. As the country and physician practices are starting to re-open as we enter a post-pandemic period, we believe that we are well positioned to accelerate our rate of growth with new patient starts and revenue as the year progresses,” said Patrick J. McEnany, Chairman and Chief Executive Officer of Catalyst Pharmaceuticals. “We believe that our strong balance sheet, earnings power and borrowing capability has us well-positioned to execute on our strategic initiative to expand our product and pipeline portfolio of therapies to treat other rare diseases. As we began 2021 with incredible momentum, we are confident that we have the team that can deliver our ambitious goals for this year and beyond.”

Q4-20 and FY-20 Financial Results

• Total revenue, net in Q4-20 was $31.0 million, compared to $30.1 million for Q4-19. Total revenue, net for FY 2020 was $119.1 million, compared to $102.3 million for FY 2019, an increase of 16% year over year.

• Operating income in Q4-20 was $8.6 million, compared to $8.0 million in Q4-19. Operating income in FY-20 was $41.3 million, compared to $31.8 million in FY-19, an increase of 30% year over year.

• Net income in Q4-20 was $11.4 million, or $0.11 per basic and diluted share, compared with net income in Q4-19 of $7.9 million, or $0.08 per basic and $0.07 per diluted share. Net income in FY-20 was $75.0 million, or $0.72 per basic and $0.71 per diluted share, compared with net income in FY-19 of $31.9 million, or $0.31 per basic and $0.30 per diluted share.

• Net income for FY-2020 includes $33.1 million ($0.32 per basic and $0.31 per diluted share) of tax benefit from recording the deferred tax asset, including the reversal of the valuation allowance in Q3-20.

• Research and development expenses for Q4-20 were $4.2 million as compared to $6.3 million for Q4-19. Research and development expenses for FY-20 were $16.5 million as compared to $18.8 million for FY-19.

• Selling, general and administrative expenses for Q4-20 were $13.4 million, compared to $11.4 million in Q4-19. Selling, general and administrative expenses for FY-20 were $44.2 million, compared to $36.9 million in FY-19.

• Ended 2020 with $140.3 million in cash and investments and no funded debt.

Corporate Highlights and Milestones

• Achieved record revenues for Firdapse® in treating adult LEMS patients.

• Initial patent was issued in the fourth quarter of 2020 for the use of 3,4-diaminopyridine (the patent expires in 2034 with four other patents pending in that estate).

• Expansion of the company’s strategic focus to include acquiring or in-licensing innovative, technology platforms and earlier stage programs in other therapeutic categories outside of neuromuscular diseases.

• Commenced a national search for a key executive, a Chief Product Development Officer, to strategically develop and manage portfolio planning and R&D activities.

• Actively engaged in evaluation of potential acquisition of products or companies.

Other Firdapse® Development Programs

• Firdapse® long-acting formulation development program continues on schedule, with additional PK work expected to be conducted during 2021.

• A proof-of-concept study evaluating Firdapse® as a treatment for Hereditary Neuropathy with Liability to Pressure Palsies (HNPP) is scheduled to start in the third quarter of 2021.

• Plans to present MuSK-MG Firdapse® study hypotheses and a revised protocol to the FDA for discussion during the first half of 2021.

COVID-19 Impact

• Issued a no travel and remote work policy for all Catalyst employees on March 16^th of last year that has been partially rescinded on a regional basis as reopening has begun.

• Diligently working to reduce COVID-19 impact on new patient starts, enrollments and revenues.

• We believe that our current base of LEMS patients on reimbursed Firdapse® remains fairly stable and very compliant to their medication regimen.

• Have not experienced any disruptions in the supply chain or production of Firdapse® and believe the safety stock of Firdapse® is more than adequate for current anticipated needs.

• Proudly partnered with First Responder’s Children’s Foundation/COVID-19 Emergency Response Fund, which provides emergency grants to support frontline emergency and healthcare workers and their families enduring financial hardship during this COVID-19 pandemic.

Balance Sheet and Key Activities in 2021

At December 31, 2020, Catalyst had cash and cash equivalents and investments of $140.3 million and no funded debt.

The Company plans to continue investing in the following key activities in 2021:

• Expansion of investments in research and development, including acquiring earlier stage rare disease opportunities and innovative technology.

• Expanding, prosecuting and protecting our portfolio of intellectual property.

• Expansion of U.S. commercialization of Firdapse®.

• On-going development programs evaluating Firdapse® for the treatment of MuSK-MG and HNPP.

• Continue support for our Firdapse® long-acting formulation.

• Continue Japan regulatory activities to seek marketing authorization for Firdapse®.

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More detailed financial information and analysis may be found in the Company’s Annual Report on Form 10-K, which was filed with the Securities and Exchange Commission (SEC) on March 15, 2021.

Non-GAAP Financial Measure

Excluding expenses related to stock-based compensation of $1.5 million, non-GAAP¹ net income for Q4-20 was $12.9 million, or $0.12 per basic and diluted share. This compares to non-GAAP¹ net income of $9.1 million, or $0.09 per basic and diluted share, excluding stock-based compensation expense of $1.1 million, for Q4-19. Excluding expenses related to stock-based compensation of $6.3 million, non-GAAP¹ net income for FY-20 was $81.2 million, or $0.78 per basic share and $0.76 per diluted share. This compares to a non-GAAP¹ net income of $35.7 million, or $0.35 per basic and $0.34 per diluted share, excluding stock-based compensation expense of $3.8 million, for FY-2019.

Conference Call

Catalyst management will host an investment-community conference call and webcast at 8:30 a.m. ET, tomorrow, Tuesday March 16, 2021 to discuss the financial results and provide a corporate update. Investors who wish to participate in the conference call may do so by dialing (877) 407-8912 for domestic and Canadian callers or (201) 689-8059 for international callers. Those interested in listening to the conference call live via the internet may do so by visiting the Investors page of the company’s website at www.catalystpharma.com and clicking on the webcast link on the Investors home page. A webcast replay will be available on the Catalyst website for 30 days following the call by visiting the Investor page of the company’s website at www.catalystpharma.com.

About Catalyst Pharmaceuticals

Catalyst Pharmaceuticals is a commercial-stage biopharmaceutical company focused on developing and commercializing innovative therapies for people with rare debilitating, chronic neuromuscular and neurological diseases, including Lambert-Eaton myasthenic syndrome (LEMS), anti-MuSK antibody positive myasthenia gravis (MuSK-MG) and other neurological and neuromuscular disorders. Catalyst’s New Drug Application for Firdapse® (amifampridine) 10 mg tablets for the treatment of adults with LEMS was approved in 2018 by the U.S. Food & Drug Administration (“FDA”), and Firdapse® is commercially available in the United States. Further, Canada’s national healthcare regulatory agency, Health Canada, recently approved the use of Firdapse® (amifampridine) for the treatment of patients in Canada with LEMS.

Firdapse® is currently being evaluated in clinical trials for the treatment of MuSK-MG and has received Orphan Drug Designation from the FDA for myasthenia gravis.

¹  Statements made in this press release include a non-GAAP financial measure. Such information is provided as additional information and not as an alternative to Catalyst’s financial statements presented in accordance with U.S. generally accepted accounting principles (GAAP). This non-GAAP financial measure is intended to enhance an overall understanding of Catalyst’s current financial performance. Catalyst believes that the non-GAAP financial measure presented in this press release provides investors and prospective investors with an alternative method for assessing Catalyst’s operating results in a manner that Catalyst believes is focused on the performance of ongoing operations and provides a more consistent basis for comparison between periods. The non-GAAP financial measures in this press release exclude from the calculation of net income (loss) the expense associated with non-cash stock-based compensation. Non-GAAP income (loss) per share is calculated by dividing non-GAAP income (loss) by the weighted average common shares outstanding.

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Forward-Looking Statements

This press release contains forward-looking statements. Forward-looking statements involve known and unknown risks and uncertainties, which may cause Catalyst’s actual results in future periods to differ materially from forecasted results. A number of factors, including (i) the impact of the effects of the COVID-19 pandemic on Catalyst’s revenues and on the timeline for our trials or proof-of-concept studies, (ii) whether, even if Catalyst continues to be successful in commercializing Firdapse®, Catalyst will continue to achieve sustained positive cash flow and profitability, (iii) the effect on Catalyst’s business and future results of operations of the approval by the FDA of Ruzurgi® for the treatment of pediatric LEMS patients (ages 6 to under 17); (iv) whether Catalyst’s suit against the FDA seeking to vacate the FDA’s approval of Ruzurgi® will ultimately be successful; (v) whether Firdapse® will ever be approved for commercialization for the treatment of MuSK-MG, or any other disease, (vi) whether we will be successful in executing on our strategic initiative to expand our product and pipeline therapies to treat other rare diseases, and (vii) those other factors described in Catalyst’s Annual Report on Form 10-K for the fiscal year 2020 and its other filings with the U.S. Securities and Exchange Commission (SEC), could adversely affect Catalyst. Copies of Catalyst’s filings with the SEC are available from the SEC, may be found on Catalyst’s website, or may be obtained upon request from Catalyst. Catalyst does not undertake any obligation to update the information contained herein, which speaks only as of this date.

Investor Contact Brian Korb Solebury Trout (646) 378-2923 bkorb@troutgroup.com Company Contact Patrick J. McEnany Catalyst Pharmaceuticals Chief Executive Officer (305) 420-3200 pmcenany@catalystpharma.com

Media Contact

David Schull

Russo Partners

(212) 845-4271

david.schull@russopartnersllc.com

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CATALYST PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

	(unaudited) For the Three Months Ended December 31,					For the Year Ended December 31,
	2020			2019		2020			2019
Product revenue, net	$	30,832,723		$	30,122,555	$	118,740,617		$	102,306,337
Revenues from collaborative arrangements		182,186			—		332,186			—
Total revenues		31,014,909			30,122,555		119,072,803			102,306,337
Operating costs and expenses:
Cost of sales		4,869,658			4,398,265		17,039,157			14,759,139
Research and development		4,175,028			6,308,390		16,496,715			18,842,752
Selling, general and administrative		13,352,387			11,409,213		44,233,754			36,881,187
Total operating costs and expenses		22,397,073			22,115,868		77,769,626			70,483,078
Operating income (loss)		8,617,836			8,006,687		41,303,177			31,823,259
Other income, net		105,828			398,683		586,897			1,585,774
Net income (loss) before income taxes		8,723,664			8,405,370		41,890,074			33,409,033
Income tax provision (benefit)		(2,713,467	)		475,657		(33,092,926	)		1,533,696
Net income (loss)	$	11,437,131		$	7,929,713	$	74,983,000		$	31,875,337
Net income (loss) per share:
Basic	$	0.11		$	0.08	$	0.72		$	0.31
Diluted	$	0.11		$	0.07	$	0.71		$	0.30
Weighted average shares outstanding:
Basic		103,694,845			103,180,946		103,512,913			102,944,316
Diluted		105,838,449			106,567,001		106,242,273			106,020,936

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CATALYST PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

	December 31, 2020		December 31, 2019
ASSETS
Current Assets:
Cash and cash equivalents	$	130,237,109	$	89,511,710
Short-term investments		10,041,068		5,007,050
Accounts receivable, net		5,987,426		10,536,997
Inventory		4,650,600		1,956,792
Prepaid expenses and other current assets		8,327,771		4,351,074
Total current assets		159,243,974		111,363,623
Operating lease right-of-use asset		—		793,252
Property and equipment, net		129,800		210,467
Deferred tax assets		32,971,264		—
Deposits		8,888		8,888
Total assets	$	192,353,926	$	112,376,230
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities:
Accounts payable	$	4,256,020	$	4,117,447
Accrued expenses and other liabilities		18,500,267		19,981,295
Total current liabilities		22,756,287		24,098,742
Operating lease liability, net of current portion		—		647,532
Total liabilities		22,756,287		24,746,274
Total stockholders’ equity		169,597,639		87,629,956
Total liabilities and stockholders’ equity	$	192,353,926	$	112,376,230

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