Aspen Aerogels, Inc. Reports Third Quarter 2025 Financial Results and Recent Business Highlights

Full-year 2025 outlook updated to reflect lower near-term EV production in North AmericaPyroThin® award from a major EU OEM demonstrates technology leadership & supports growth opportunitiesLNG and Subsea project opportunities expected to drive Energy Industrial growth in 2026 NORTHBOROUGH, Mass., Nov. 06, 2025 (GLOBE NEWSWIRE) -- Aspen Aerogels, Inc. (NYSE: ASPN) (“Aspen” or the “Company”), a technology leader in sustainability and electrification solutions, today announced financial results for the third quarter of 2025, and discussed recent business developments. Total revenue for the third quarter of 2025 was $73.0 million, compared to $117.3 million in the third quarter of 2024. Net loss was $6.3 million, which included $1.6 million of restructuring and impairment charges, compared to net loss of $13.0 million in the third quarter of 2024. Adjusting net loss for the restructuring and impairment charges would result in a net loss of $4.8 million. Net loss per share was $0.08, compared to net loss per share of $0.17 in the third quarter of 2024. Adjusting net loss per share for the restructuring and impairment costs would result in a net loss per share of $0.06. Adjusted EBITDA for the third quarter of 2025 was $6.3 million, compared to $25.4 million in the third quarter of 2024. A reconciliation of GAAP financial results to non-GAAP financial results are provided in the financial schedules that are part of this press release. An explanation of these non-GAAP financial measures are also included below under the heading "Non-GAAP Financial Measures." Recent Business Highlights & Quarterly Performance Company revenues of $73.0 million, a 6% decrease quarter-over-quarter (QoQ) Thermal Barrier: $48.7 million of revenue, a 12% decrease QoQEnergy Industrial: $24.3 million of revenue, a 7% increase QoQ Delivered gross margins of 28.5%, a four-percentage point decrease QoQNet loss of $6.3 million, a $2.7 million improvement QoQAdjusted EBITDA of $6.3 million, a $3.5 million decrease QoQEnded the quarter with cash and equivalents of $152.4 millionGenerated $15 million of operating cash flow, reflecting ongoing working capital optimization initiativesAwarded PyroThin® Thermal Barrier contract from a major European OEM with expected start of production in 2027 “The U.S. EV environment has created a challenging backdrop after a period of significant development. We expect to rebuild growth in our Thermal Barrier business after the market stabilizes, supported by the ramp-up of our European programs, including our newest award,” commented Don Young, Aspen's President and CEO. “We anticipate a strong 2026 for our Energy Industrial business as project activity normalizes. We also see near-term revenue opportunities from our diversification into adjacent markets. Our focus remains on driving growth through innovation and building a profitable, capital-efficient business,” added Young. 2025 Financial OutlookAspen’s updated full-year 2025 outlook is as follows: ($ in millions, except per share amounts – figures may not total due to rounding) MetricYTD ActualsPriorFY 2025 OutlookUpdatedFY 2025 OutlookRevenue230297 - 317270 – 280Net Income (Loss)(317)(317) – (307)(342) – (334)Earnings Per Share (Basic)(3.85)(3.86) – (3.73)(4.15) – (4.05)Adjusted EBITDA2135 – 457 – 15CAPEX*202525 *Capital Expenditures excluding costs related to the Statesboro plant project, which totaled $15.4 million year-to-date as of 9/30/2025 “As we reset our outlook to reflect lower near-term demand in the U.S. EV market, we remain focused on the elements within our control,” said Grant Thoele, Chief Financial Officer and Treasurer. “Throughout 2025, we’ve taken decisive actions to reduce fixed costs and improve operating efficiency, fortifying the foundation of the business. In addition to strengthening our core markets, we are focused on driving growth through disciplined execution, thoughtful diversification, and developing strategic partnerships.” The Company's 2025 outlook assumes depreciation and amortization of $22.5 million, stock-based compensation expense of $10.5 million, other expense (net) of $11.5 million, restructuring and demobilization costs of $16.5 million, impairment of property, plant, and equipment of $287.6 million, and weighted average shares outstanding of 82.3 million for the full year. A reconciliation of net loss to non-GAAP Adjusted EBITDA for the 2025 financial outlook is provided in the financial schedules that are part of this press release. An explanation of this non-GAAP financial measure is also included below under the heading “Non-GAAP Financial Measures.” Aspen may incur, among other items, additional charges, realize gains or losses, incur financing costs or interest expense, or experience other events in 2025, including those related to supply chain disruptions, or further cost inflation, that could cause actual results to vary materially from this outlook. See Special Note Regarding Forward-Looking and Cautionary Statements below. Conference Call and Webcast NotificationA conference call with Aspen management to discuss third quarter 2025 results and recent business developments will be held Thursday, November 6, 2025 at 8:30 a.m. EST. During the call, management will respond to questions concerning, but not limited to, Aspen's financial performance, business conditions, and financial outlook. Management's discussion and responses could contain information that has not been previously disclosed. Shareholders and other interested parties may call +1 (404) 975-4839 (domestic) or +1 (929) 526-1599 (international) and reference conference ID "877424" to participate in the conference call. In addition, the conference call and an accompanying slide presentation will be available live as a listen-only webcast hosted at the Investors section of Aspen's website, www.aerogel.com. Following the live event, an archived version of the webcast will be available on Aspen's website for convenient on-demand replay for at least a year. A copy of this press release is posted in the Investors section on Aspen's website. Non-GAAP Financial MeasuresIn addition to providing financial measurements based on generally accepted accounting principles in the United States of America ("GAAP"), Aspen provides additional financial metrics that are not prepared in accordance with GAAP ("non-GAAP"). The non-GAAP financial measures included in this press release are Adjusted EBITDA, adjusted net loss and adjusted net loss per share. Management uses these non-GAAP financial measures, in addition to GAAP financial measures, as a measure of operating performance because the non-GAAP financial measures do not include the impact of items that management does not consider indicative of Aspen's core operating performance. In addition, management uses Adjusted EBITDA (i) for planning purposes, including the preparation of Aspen's annual operating budget, (ii) to allocate resources to enhance the financial performance of its business, and (iii) as a performance measure under its bonus plan. Management believes that these non-GAAP financial measures reflect Aspen's ongoing business in a manner that allows for meaningful comparisons and analysis of trends in its business, as it excludes expenses and gains not reflective of Aspen's ongoing operating results or that may be infrequent and/or unusual in nature. Management also believes that these non-GAAP financial measures provides useful information to investors in understanding and evaluating Aspen's operating results and future prospects in the same manner as management and in comparing financial results across accounting periods and to those of peer companies. These non-GAAP measures may not be comparable to similarly titled measures presented by other companies. The non-GAAP financial measures do not replace the presentation of Aspen's GAAP financial results and should only be used as a supplement to, not as a substitute for, Aspen's financial results presented in accordance with GAAP. In this press release, Aspen has provided a reconciliation of Adjusted EBITDA to net income (loss), adjusted net loss to net loss and adjusted net loss per share to net loss per share, in each case the most directly comparable GAAP financial measure. Management strongly encourages investors to review Aspen's financial statements and publicly filed reports in their entirety and not rely on any single financial measure. About Aspen Aerogels, Inc.Aspen is a technology leader in sustainability and electrification solutions. The Company's aerogel technology enables its customers and partners to achieve their own objectives around the global megatrends of resource efficiency, e-mobility and clean energy. Aspen's PyroThin® products enable solutions to thermal runaway challenges within the electric vehicle ("EV") market. The Company's Cryogel® and Pyrogel® products are valued by the world's largest energy infrastructure companies. Aspen's strategy is to partner with world-class industry leaders to leverage its Aerogel Technology Platform® into additional high-value markets. Aspen is headquartered in Northborough, Mass. For more information, please visit www.aerogel.com. Special Note Regarding Forward-Looking and Cautionary StatementsThis press release and any related discussion contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 that involve risks and uncertainties that could cause actual results to be materially different from historical results or from any future results expressed or implied by such forward-looking statements, including statements relating to Aspen’s financial outlook for the full year 2025. These statements are not historical facts but rather are based on Aspen’s current expectations, estimates and projections regarding Aspen's business, operations and other factors relating thereto, including with respect to Aspen’s financial outlook for the full year 2025. Words such as “may,” “will,” “could,” “would,” “should,” “anticipate,” “predict,” “potential,” “continue,” “expects,” “intends,” “plans,” “projects,” “believes,” “estimates,” “outlook,” “assumes,” “targets,” “opportunity,” and similar expressions are used to identify these forward-looking statements. Such forward-looking statements include statements regarding, among other things, Aspen’s beliefs and expectations about revenue, cash flow, gross profit, gross margin, operating margin, net income (loss), Adjusted EBITDA, profitability, capacity, revenue capacity, backlog, costs, expenses, and related increases, decreases, trends or timing, including with respect to Aspen’s beliefs and expectations about the EV and energy industrial market; Aspen’s potential revenue capacity and gross margins; Aspen’s efforts to demobilize its previously planned second manufacturing plant in Statesboro, Georgia; Aspen’s efforts to manage the capacity of its manufacturing plant in East Providence, Rhode Island and its external manufacturing facility to meet expected customer demand; current or future trends in the EV and energy infrastructure markets, as well as in adjacent market opportunities such as energy storage applications, electrification applications and other potential adjacent applications; the impact of market trends on Aspen’s business; the strength, effectiveness, productivity, costs, potential profitability or other fundamentals of Aspen’s business; beliefs about the role of Aspen’s technology and opportunities in the EV and energy infrastructure markets, including LNG and Subsea; beliefs about Aspen’s ability to provide and deliver products and services to EV and energy infrastructure customers; beliefs about content per vehicle, revenue, costs, expenses, profitability, investments or cash flow associated with Aspen’s EV opportunities, including the EV thermal barrier business; and the performance and market acceptance of Aspen’s products. All such forward-looking statements are based on management’s present expectations and are subject to certain factors, risks and uncertainties that may cause actual results, outcome of events, timing and performance to differ materially from those expressed or implied by such statements. These risks and uncertainties include, but are not limited to, the following: ongoing uncertainty in the EV and energy infrastructure markets and potential demand for Aspen’s products; inability to execute Aspen’s long-term growth plan; the right of EV thermal barrier customers to cancel contracts with Aspen at any time and without penalty; any costs, expenses, or investments incurred by Aspen in excess of projections used to develop pricing for Aspen’s products; Aspen’s inability to create customer or market opportunities for its products; any failure to enforce any of Aspen’s patents; the general economic conditions and cyclical demands in the markets that Aspen serves; the impact of changes in government and economic policies, incentives, and tariffs on Aspen's customers, production, sales, cost structure, competitive landscape and results of operations; and the other risk factors discussed under the heading “Risk Factors” in Aspen’s Annual Report on Form 10-K for the year ended December 31, 2024 and filed with the Securities and Exchange Commission (“SEC”) on February 27, 2025, as well as any updates to those risk factors filed from time to time in Aspen’s subsequent periodic and current reports filed with the SEC. All statements contained in this press release are made only as of the date of this press release. Aspen does not intend to update this information unless required by law. Investor Relations Contacts:Neal Baranoskynbaranosky@aerogel.comPhone: (508) 691-1111 x 8 Georg Venturatos / Patrick HallGateway GroupASPN@gateway-grp.comPhone: (949) 574-3860 ASPEN AEROGELS, INC.Condensed Consolidated Balance Sheets(Unaudited and in thousands) September 30, December 31, 2025 2024 (In thousands) Assets Current assets: Cash and cash equivalents $150,722 $220,882 Restricted cash 1,710 394 Accounts receivable, net 69,149 109,104 Inventories 43,037 47,551 Prepaid expenses and other current assets 14,299 31,517 Total current assets 278,917 409,448 Property, plant and equipment, net 154,370 459,276 Assets held for sale 25,504 — Operating lease right-of-use assets 17,557 20,854 Finance lease right-of-use assets 6,423 — Other long-term assets 8,624 5,566 Total assets $491,395 $895,144 Liabilities and Stockholders’ Equity Current liabilities: Accounts payable $19,098 $44,361 Accrued expenses 15,585 36,495 Deferred revenue 824 2,199 Finance obligation for sale and leaseback transactions 4,265 4,028 Operating lease liabilities 3,243 3,279 Finance lease liabilities 1,724 — Long term debt - current portion 26,000 19,750 Total current liabilities 70,739 110,112 Revolving line of credit 14,252 42,131 Long term debt 70,090 94,961 Finance obligation for sale and leaseback transactions long-term 6,133 10,087 Operating lease liabilities long-term 20,745 23,148 Finance lease liabilities long-term 3,703 — Total liabilities 185,662 280,439 Stockholders’ equity: Total stockholders’ equity 305,733 614,705 Total liabilities and stockholders’ equity $491,395 $895,144 ASPEN AEROGELS, INC.Consolidated Statements of Operations(Unaudited and in thousands, except share and per share data) Three Months Ended Nine Months Ended September 30, September 30, 2025 2024 2025 2024 (In thousands, exceptshare and per share data) Revenue $73,017 $117,340 $229,764 $329,611 Cost of revenue 52,218 68,297 160,837 193,847 Gross profit 20,799 49,043 68,927 135,764 Operating expenses: Research and development 2,494 4,591 10,621 13,645 Sales and marketing 6,553 9,306 21,885 27,130 General and administrative 13,532 17,746 40,402 52,465 Restructuring and demobilization costs 1,568 — 16,296 — Impairment of property, plant and equipment — — 287,567 2,702 Total operating expenses 24,147 31,643 376,771 95,942 Income (loss) from operations (3,348) 17,400 (307,844) 39,822 Other income (expense) Interest expense, convertible note - related party — (1,469) — (7,550)Interest expense (2,973) (1,147) (8,015) (883)Loss on extinguishment of debt — (27,487) — (27,487)Other income 581 — 1,711 — Total other expense (2,392) (30,103) (6,304) (35,920)Income (loss) before income tax expense (5,740) (12,703) (314,148) 3,902 Income tax expense (594) (267) (2,491) (1,889)Net income (loss) $(6,334) $(12,970) $(316,639) $2,013 Net income (loss) per share: Basic $(0.08) $(0.17) $(3.85) $0.03 Diluted $(0.08) $(0.17) $(3.85) $0.03 Weighted-average common shares outstanding: Basic 82,399,599 76,261,294 82,216,027 76,402,123 Diluted 82,399,599 76,261,294 82,216,027 79,149,193 Analysis of Cash Flow The following table summarizes our cash flows for the periods indicated. Nine Months Ended September 30, 2025 2024 (In thousands) Net cash provided by (used in): Operating activities $16,737 $9,865 Investing activities (34,985) (71,511)Financing activities (50,596) 35,558 Net decrease in cash (68,844) (26,088)Cash, cash equivalents and restricted cash at beginning of period 221,276 139,971 Cash, cash equivalents and restricted cash at end of period $152,432 $113,883 Three Months Ended March 31, 2025 June 30, 2025 September 30, 2025 (In thousands) Net cash provided by (used in): Operating activities $5,632 $(3,930) $15,035 Investing activities (12,998) (12,885) (9,102)Financing activities (21,477) (7,586) (21,533)Net (decrease) increase in cash (28,843) (24,401) (15,600)Cash, cash equivalents and restricted cash at beginning of period 221,276 192,433 168,032 Cash, cash equivalents and restricted cash at end of period $192,433 $168,032 $152,432 Reconciliation of Non-GAAP Financial Measures The following tables present a reconciliation of the non-GAAP financial measure included in this press release to the most directly comparable GAAP measure: Reconciliation of Adjusted EBITDA to Net income (loss) We define Adjusted EBITDA as net income (loss) before interest expense, taxes, depreciation, amortization, stock-based compensation expense and other items, which occur from time to time and which we do not believe are indicative of our core operating performance. For the three and nine months ended September 30, 2025 and 2024: Three Months Ended Nine Months Ended September 30, September 30, 2025 2024 2025 2024 (In thousands) Net income (loss) $(6,334) $(12,970) $(316,639) $2,013 Depreciation and amortization 5,393 5,321 16,981 17,093 Stock-based compensation 2,642 2,630 7,927 10,307 Other expense 2,392 2,616 6,304 8,433 Income tax expense 594 267 2,491 1,889 Loss on extinguishment of debt - 27,487 - 27,487 Restructuring and demobilization costs 1,568 - 16,296 - Impairment of property, plant and equipment - - 287,567 - Adjusted EBITDA $6,255 $25,351 $20,927 $67,222 Other Information The following tables reconcile net income (loss) and net income (loss) per share to adjusted net income (loss) and adjusted net income (loss) per share for the three and nine months ended September 30, 2025 and 2024: Three Months Ended September 30, 2025 September 30, 2024 Amount Per Share Amount Per Share (In thousands) (In thousands) Net loss $(6,334) $(0.08) $(12,970) $(0.17)Restructuring and demobilization costs 1,568 0.02 — - Impairment of property, plant and equipment — - — - Adjusted Net Loss $(4,766) $(0.06) $(12,970) $(0.17) Nine Months Ended September 30, 2025 September 30, 2024 Amount Per Share Amount Per Share (In thousands) (In thousands) Net income (loss) $(316,639) $(3.85) $2,013 $0.03 Restructuring and demobilization costs 16,296 0.20 — - Impairment of property, plant and equipment 287,567 3.50 — - Adjusted Net Income (Loss) $(12,776) $(0.16) $2,013 $0.03 For the 2025 full year financial outlook: Current Outlook Year Ending December 31, 2025 Low High (In thousands) Net loss $(341,600) $(333,600)Depreciation and amortization 22,500 22,500 Stock-based compensation 10,500 10,500 Other expense, net 11,500 11,500 Restructuring and demobilization costs 16,500 16,500 Impairment of property, plant and equipment 287,600 287,600 Adjusted EBITDA $7,000 $15,000 Prior Outlook Year Ending December 31, 2025 Low High (In thousands) Net loss $(316,805) $(306,805)Depreciation and amortization 24,789 24,789 Stock-based compensation 10,284 10,284 Other expense, net 11,109 11,109 Restructuring and demobilization costs 17,728 17,728 Impairment of property, plant and equipment 287,567 287,567 Adjusted EBITDA $34,672 $44,672

Aspen Aerogels, Inc. Reports Third Quarter 2025 Financial Results and Recent Business Highlights

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