Aspen Aerogels Inc 8-K Filing

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Key Financial Figures

• $50 million — ) an amount equal to the greater of (x) $50 million and (y) 85% of the then aggregate outst

Filing Documents

• f8k_121725.htm (8-K) — 20KB
• exh_101.htm (EX-10.1) — 1271KB
• exh_991.htm (EX-99.1) — 6KB
• midcaplogo.jpg (GRAPHIC) — 7KB
• 0001171843-25-007988.txt ( ) — 1753KB
• gnw-20250101.xsd (EX-101.SCH) — 3KB
• gnw-20250101_def.xml (EX-101.DEF) — 25KB
• gnw-20250101_lab.xml (EX-101.LAB) — 35KB
• gnw-20250101_pre.xml (EX-101.PRE) — 24KB
• f8k_121725_htm.xml (XML) — 3KB

01. Entry into a Material Definitive Agreement

Item 1.01. Entry into a Material Definitive Agreement. On December 16, 2025, Aspen Aerogels, Inc., a Delaware corporation (the " Company "), Aspen Aerogels Rhode Island, LLC, a Rhode Island limited liability company (" Aspen RI "), Aspen Aerogels Mexico Holdings, LLC, a Delaware limited liability company (" Aspen Mexico ") and Aspen Aerogels Georgia, LLC, a Georgia limited liability company (" Aspen Georgia " and, together with the Company, Aspen RI and Aspen Mexico, collectively, the " Credit Parties ") entered into that certain Amendment No. 2 to Credit, Security and Guaranty Agreement (" Amendment No. 2 "), by and among the Credit Parties, MidCap Funding IV Trust, as agent (the " Agent "), MidCap Financial Trust, as term loan servicer (the " Term Loan Servicer "), and the Lenders (as defined below) party thereto, which amends that certain Credit, Security and Guaranty Agreement, dated as of August 19, 2024 (the " Credit Agreement " and the facilities provided thereunder, collectively, the " MidCap Loan Facility "; the MidCap Loan Facility, as amended by that certain Amendment No. 1 and Joinder to Credit, Security and Guaranty Agreement, dated as of May 6, 2025 and by Amendment No. 2, the " Amended MidCap Loan Facility "), by and among the Credit Parties, the Agent, the Term Loan Servicer, the financial institutions or other entities from time to time party thereto as lender (the " Lenders "), and the other parties party thereto as additional guarantors and/or borrowers from time to time. Pursuant to Amendment No. 2, the financial covenants under the MidCap Loan Facility have been amended such that (a) the applicable minimum liquidity threshold (both for (i) the minimum liquidity financial covenant, which must be maintained by the Company at all times and (ii) the "Cash Dominion Event" definition for purposes of triggering cash dominion) has changed from (i) an amount equal to the greater of (x) $50 million and (y) 85% of the then aggregate outstanding principa

01. Regulation FD Disclosure

Item 7.01. Regulation FD Disclosure. A copy of the press release announcing Amendment No. 2 is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information furnished pursuant to this Item 7.01, including Exhibit 99.1, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and will not be incorporated by reference into any filing under the Securities Act of 1933, as amended, unless specifically identified therein as being incorporated therein by reference.

01. Financial Statements and Exhibits

Item 9.01. Financial Statements and Exhibits. (d) Exhibits. Exhibit Number Description 10.1* Amendment No. 2, dated December 16, 2025, to the Credit, Security and Guaranty Agreement, dated August 19, 2024, by and among Aspen Aerogels, Inc., Aspen Aerogels Rhode Island, LLC, Aspen Aerogels Mexico Holdings, LLC, Aspen Aerogels Georgia, LLC, MidCap Funding IV Trust and MidCap Financial Trust 99.1 Press Release dated December 17, 2025 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) *Certain exhibits and schedules have been omitted in accordance with Item 601(a)(5) of Regulation S-K. The registrant agrees to furnish supplementally a copy of any omitted exhibit or schedule to the Securities and Exchange Commission upon its request.

SIGNATURES

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ASPEN AEROGELS, INC. Date: December 17, 2025 By: /s/ Grant Thoele Name: Grant Thoele Title: Chief Financial Officer and Treasurer

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