Exhibit 99.1

LOGO

Soleno Therapeutics Reports Fourth Quarter and Full-Year 2025 Financial Results and Provides Update on U.S. Launch of VYKAT(TM) XR

REDWOOD CITY, Calif., February 25, 2026 – Soleno Therapeutics, Inc. (Soleno) (NASDAQ: SLNO), a biopharmaceutical company developing novel therapeutics for the treatment of rare diseases, today reported financial results for the fourth quarter and full-year ended December 31, 2025 and provided an update on the U.S. launch of VYKAT^TM XR (diazoxide choline) extended-release tablets.

Fourth Quarter and Full-Year 2025 and Recent Corporate Highlights

•

Revenue, net, from the sale of VYKAT XR for the three and twelve months ended December 31, 2025, was $91.7 million and $190.4 million, respectively.

•

From approval on March 26, 2025 through December 31, 2025, Soleno reports:

•

1,250 patient start forms received, including 207 in the fourth quarter

•

630 unique prescribers, including 136 new prescribers in the fourth quarter

•

859 active patients on drug as of December 31, 2025

•

Over 185 million lives covered

•

Achieved profitability with positive net income of $20.9 million for the year.

•

Generated $48.7 million of cash flow from operating activities in the fourth quarter.

•

Invested $100 million in accelerated share repurchase program announced in November 2025 and ended the year with $506.1 million of cash, cash equivalents and marketable securities.

“Our first year as a commercial organization has been an outstanding success,” stated Anish Bhatnagar, M.D., Chairman and Chief Executive Officer of Soleno Therapeutics. “In just nine months, we received patient start forms representing over 12% of the U.S. VYKAT XR addressable market, reflecting both the strength of our world-class commercial team as well as the substantial disease burden that is addressed by VYKAT XR. We are very pleased with the positive trajectory of our other leading indicators, including patient start forms, patients on active therapy, unique prescribers, and lives covered.”

“Looking ahead, with the U.S. VYKAT XR launch well underway, we plan to pursue regulatory approval in other territories, starting with the EU. We will also begin to evaluate diazoxide choline extended-release (DCCR) in additional high-need rare diseases as we expand our development pipeline. We have made excellent progress in 2025 and are excited for the year ahead.”

LOGO

Fourth Quarter and Full-Year Ended December 31, 2025 Financial Results

Product revenue, net, was $91.7 million and $190.4 million for the three and twelve months ended December 31, 2025, respectively. VYKAT XR had not been approved or commercially launched in the three and twelve months ended December 31, 2024, and accordingly, generated no revenue during those periods.

Research and development expense was $9.6 million, which includes $2.8 million of non-cash stock-based compensation, for the three months ended December 31, 2025, compared to $21.5 million, which includes $10.1 million of non-cash stock-based compensation, in the same period of 2024. For the year ended December 31, 2025, research and development expense was $40.6 million, which includes $11.7 million of non-cash stock-based compensation, a decrease of $38.0 million compared to $78.6 million, which includes $33.7 million non-cash stock-based compensation, in the same period of 2024.

For the year, the $15.9 million decrease in expense not related to stock-based compensation was due to a reduction in pre-commercial launch costs in support of the Company’s 2024 NDA submission, supply chain, and clinical activities. These expenses decreased $7.5 million, $6.0 million, and $3.8 million, respectively. These decreases were partially offset by the Company incurring an additional $1.4 million of expense towards its MAA submission in Europe, which was submitted in the second quarter of 2025. The cadence of the Company’s research and development expenditures will fluctuate depending upon the state of its research activities, clinical programs, and the timing of manufacturing and other projects necessary to support the submission of its regulatory filings.

Selling, general and administrative expense was $40.9 million, which includes $8.7 million of non-cash stock-based compensation, for the three months ended December 31, 2025, compared to $37.3 million, which includes $19.7 million of non-cash stock-based compensation, in the same period of 2024. For the year ended December 31, 2025, selling, general and administrative expense was $132.1 million, which includes $34.1 million of non-cash stock-based compensation, an increase of $26.2 million compared to $105.9 million, which includes $66.2 million of non-cash stock-based compensation, in the same period of 2024.

For the year, personnel costs, including hiring expense and other associated headcount costs, increased $31.3 million as the Company hired additional employees in support of its commercial launch and increased business activities. New program costs associated with commercial launch activities, including disease state education, analytics, other marketing programs, medical affairs and patient advocacy activities, increased $23.4 million. Costs for international expansion increased $3.5 million. These increases were offset by the $32.1 million reduction in stock-based compensation. Selling, general and administrative expenses are anticipated to increase as the Company continues commercialization of VYKAT XR.

The Company is obligated to make cash payments of up to a maximum of $21.2 million to the former Essentialis stockholders upon the achievement of certain commercial milestones associated with the sales of DCCR in accordance with the terms of the Company’s 2017 merger agreement with Essentialis. The fair value of the liability for the contingent consideration payable by the Company upon the achievement of commercial sales milestones of $100 million and $200 million in aggregate revenue, respectively, was estimated to be $20.3 million as of December 31, 2025, a $5.5 million increase from the estimate as of December 31, 2024. The first commercial milestone was achieved in the fourth quarter 2025 and $7.0 million will be paid in the first quarter 2026.

LOGO

Total other income, net, was $3.8 million for the three months ended December 31, 2025, compared to total other income, net, of $3.1 million in the same period of 2024. For the year, total other income, net, was $11.5 million for 2025, compared to $11.8 million for 2024.

For the year ended December 31, 2025, net income was approximately $20.9 million, or $0.40 per basic and $0.39 per diluted share, compared to a net loss of $(175.9) million, or $(4.38) per basic and diluted share, for the same period of 2024.

Conference Call and Webcast Information

Soleno management will host an investor conference call and webcast to discuss its fourth quarter and full-year 2025 financial and operating results and provide an update on the U.S. launch of VYKAT XR today, February 25, 2026, at 4:30pm ET. Details can be found below:


Conference call details:		Toll-free: 800-717-1738
		International: 646-307-1865
		Conference ID: 55257
Call me^™ (avoids waiting for an operator):		Here
Webcast:		Here

About PWS

Prader-Willi syndrome (PWS) is a rare genetic neurodevelopmental disorder caused by an abnormality in the gene expression on chromosome 15. The Prader-Willi Syndrome Association USA estimates that PWS occurs in one in every 15,000 live births. The defining symptom of PWS is hyperphagia, a chronic and life-threatening condition characterized by an intense persistent sensation of hunger accompanied by food preoccupations, an extreme drive to consume food, food-related behavior problems, and a lack of normal satiety, which can severely diminish the quality of life for individuals with PWS and their families. Hyperphagia can lead to significant mortality (e.g., stomach rupture, choking, accidental death due to food seeking behavior) and longer term, co-morbidities such as diabetes, obesity, and cardiovascular disease.

INDICATION

VYKAT XR (diazoxide choline) extended-release tablets is indicated for the treatment of hyperphagia in adults and pediatric patients 4 years of age and older with Prader-Willi syndrome (PWS).

IMPORTANT SAFETY INFORMATION

Contraindications

Use of VYKAT XR is contraindicated in patients who have a known hypersensitivity to diazoxide, other components of VYKAT XR, or to thiazides.

LOGO

Warnings and Precautions

Hyperglycemia

Hyperglycemia, including diabetic ketoacidosis, has been reported. Before initiating VYKAT XR, test fasting plasma glucose (FPG) and HbA1c; optimize blood glucose in patients who have hyperglycemia. During treatment, regularly monitor fasting glucose (FPG or fasting blood glucose) and HbA1c. Monitor fasting glucose more frequently during the first few weeks of treatment in patients with risk factors for hyperglycemia.

Risk of Fluid Overload

Edema, including severe reactions associated with fluid overload, has been reported. Monitor for signs or symptoms of edema or fluid overload. VYKAT XR has not been studied in patients with compromised cardiac reserve and should be used with caution in these patients.

Adverse Reactions

The most common adverse reactions (incidence ≥10% and at least 2% greater than placebo) included hypertrichosis, edema, hyperglycemia, and rash.

Please see the full Prescribing Information, including Medication Guide.

About Soleno Therapeutics, Inc.

Soleno is focused on the development and commercialization of novel therapeutics for the treatment of rare diseases. The Company’s first commercial product, VYKAT XR (diazoxide choline) extended-release tablets, formerly known as DCCR, is a once-daily oral treatment for hyperphagia in adults and children 4 years of age and older with Prader-Willi syndrome. For more information, please visit www.soleno.life.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical facts contained in this press release are forward-looking statements. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negative of these terms or other similar expressions. These forward-looking statements speak only as of the date of this press release and are subject to a number of risks, uncertainties and assumptions, including those described in the company’s prior press releases and in the periodic reports it files with the SEC including its Annual Report on Form 10-K which it intends to release later today. The events and circumstances reflected in the company’s forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Except as required by applicable law, the company does not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

Corporate Contact: Brian Ritchie

LifeSci Advisors, LLC

212-915-2578

LOGO

Soleno Therapeutics, Inc.

Consolidated Balance Sheets

(In thousands except share and per share data)


	December 31, 2025			December 31, 2024
Assets
Current assets
Cash and cash equivalents	$	70,106		$	87,928
Marketable securities		235,366			203,509
Accounts receivable, net		28,208			—
Inventory, net		15,024			—
Prepaid expenses and other current assets		7,110			2,452

Total current assets		355,814			293,889
Long-term assets
Property and equipment, net		185			186
Operating lease right-of-use assets		2,191			2,798
Intangible assets, net		4,861			6,805
Long-term marketable securities		200,616			27,211
Other long-term assets		163			83

Total assets	$	563,830		$	330,972

Liabilities and stockholders’ equity
Current liabilities
Accounts payable	$	12,435		$	8,882
Accrued compensation		9,677			4,776
Operating lease liabilities		726			526
Contingent liability for Essentialis purchase price		20,327			—
Other current liabilities		18,198			4,563

Total current liabilities		61,363			18,747
Long-term liabilities
Contingent liability for Essentialis purchase price		—			14,791
Long-term debt, net		49,863			49,828
Long-term lease liabilities		1,964			2,472
Other long-term liabilities		525			21

Total liabilities		113,715			85,859

Commitments and contingencies (Note 6)
Stockholders’ equity
Preferred stock, $0.001 par value; 10,000,000 shares authorized, no shares issued and outstanding		—			—
Common stock, $0.001 par value, 100,000,000 shares authorized, 52,286,881 and 45,703,811 shares issued and outstanding at December 31, 2025 and 2024, respectively		52			46
Additional paid-in-capital		881,018			696,966
Accumulated other comprehensive income		415			361
Accumulated deficit		(431,370	)		(452,260	)

Total stockholders’ equity		450,115			245,113

Total liabilities and stockholders’ equity	$	563,830		$	330,972

LOGO

Soleno Therapeutics, Inc.

Consolidated Statements of Operations and Comprehensive Income (Loss)

(In thousands except share and per share data)


	Three Months Ended December 31,						Years Ended December 31,
	2025			2024			2025			2024
Product revenue, net	$	91,730		$	—		$	190,405		$	—
Operating expenses
Cost of goods sold		863			—			2,700			—
Research and development		9,558			21,486			40,627			78,568
Selling, general and administrative		40,878			37,303			132,128			105,861
Change in fair value of contingent consideration		854			327			5,536			3,242

Total operating expenses		52,153			59,116			180,991			187,671

Operating income (loss)		39,577			(59,116	)		9,414			(187,671	)

Other income (expense), net
Interest income, net		5,130			3,365			16,952			12,052
Interest expense		(1,349	)		(231	)		(5,476	)		(231	)

Total other income (expense), net		3,781			3,134			11,476			11,821

Net income (loss)	$	43,358		$	(55,982	)	$	20,890		$	(175,850	)

Other comprehensive income (loss)
Net unrealized gain (loss) on marketable securities		68			(537	)		37			361
Foreign currency translation adjustment		(13	)		3			17			—

Total comprehensive income (loss)	$	43,413		$	(56,516	)	$	20,944		$	(175,489	)

Net income (loss)		43,358			(55,982	)		20,890			(175,850	)
Less: Undistributed earnings attributable to participating securities		(1	)		—			(415	)		—

Net income (loss) attributable to common stockholders - basic and diluted	$	43,357		$	(55,982	)	$	20,475		$	(175,850	)

Net income (loss) per share - basic	$	0.82		$	(1.27	)	$	0.40		$	(4.38	)
Net income (loss) per share - diluted	$	0.80		$	(1.27	)	$	0.39		$	(4.38	)
Weighted-average common shares outstanding - basic		53,175,700			43,924,831			50,817,586			40,175,926

Weighted-average common shares outstanding - diluted		54,331,407			43,924,831			52,384,886			40,175,926

LOGO

Soleno Therapeutics, Inc.

Stock-based Compensation Expense

(In thousands)


	Three Months Ended December 31,				Years Ended December 31,
	2025		2024		2025		2024
Research and development	$	2,821	$	10,061	$	11,722	$	33,743
Selling, general and administrative		8,650		19,694		34,124		66,215

Total	$	11,471	$	29,755	$	45,846	$	99,958

SOLENO THERAPEUTICS INC 8-K