ASPN SEC Filings: 8-K, 10-Q, S-3 & 424B – Aspen Aerogels

Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Nov 5, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 7, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 8, 2026

10-K/A

Form 10-K/A - Annual report [Section 13 and 15(d), not S-K Item 405]: [Amend]

Mar 23, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Mar 13, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Nov 6, 2025

News

TYPE

HEADLINE

FILED AT

8-K

Aspen Aerogels Reports Q3 2026 Financial Results with Revenue of $85 Million and Adjusted EBITDA of $20 Million

Nov 5, 2026

8-K

Aspen Aerogels Investor Presentation and Business Overview

Sep 15, 2026

8-K

Aspen Aerogels, Inc. Reports Second Quarter 2026 Financial Results and Provides Third Quarter 2026 Outlook

Aug 6, 2026

8-K

Aspen Aerogels Initiates Staged Restart of East Providence Manufacturing Facility

May 18, 2026

8-K

Aspen Aerogels Reports Q1 2026 Financial Results and Provides Update on East Providence Facility

May 7, 2026

8-K

Aspen Aerogels Provides Update on East Providence Facility Following Explosion

Apr 21, 2026

Prospectus

TYPE

HEADLINE

FILED AT

424B5

SHELF OFFERING | Shares amount: 4,250,000 | Share price: $20.00 | Offering amount: $85,000,000.00 | Bank: Goldman Sachs & Co. LLC, Morgan Stanley

Oct 22, 2024

424B5

Shares amount: 4,250,000 | Bank: Goldman Sachs & Co. LLC, Morgan Stanley

Oct 21, 2024

424B5

6,060,607 Shares of Common Stock

Dec 20, 2023

424B5

Common Stock

Nov 30, 2022

424B5

Common Stock

Nov 29, 2022

424B5

Risks Related to This Offering and our Common Stock Underlying the Notes

Jun 29, 2022

Registrations

TYPE

HEADLINE

FILED AT

S-3

November 2026 SHELF

Nov 5, 2026

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

May 8, 2025

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

May 8, 2025

S-3ASR

SHELF

Oct 21, 2024

S-3

21,070,518 Shares of Common Stock EFFECTIVE

May 2, 2024

S-8

Registration

Jun 1, 2023

Proxies

TYPE

HEADLINE

FILED AT

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Mar 27, 2026

DEF 14A

Form DEF 14A - Other definitive proxy statements

Mar 27, 2026

PRE 14A

Form PRE 14A - Other preliminary proxy statements

Mar 13, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Mar 17, 2025

DEF 14A

Form DEF 14A - Other definitive proxy statements

Mar 17, 2025

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

May 13, 2024

Ownerships

TYPE

HEADLINE

FILED AT

Nieuwoudt Stacy Durbin (Reporting)

Nov 6, 2026

Nieuwoudt Stacy Durbin (Reporting)

Nov 6, 2026

S-3

Form S-3 - Registration statement under Securities Act of 1933

Nov 5, 2026

SCHEDULE 13G

HIRSCHMAN ORIN (Filed by)

Oct 19, 2026

DEEGAN GLENN E. (Reporting)

Oct 1, 2026

SCHEDULE 13D/A

Wood River Capital, LLC (Filed by)

Sep 24, 2026

Other

TYPE

HEADLINE

FILED AT

EFFECT

Form EFFECT - Notice of Effectiveness

May 13, 2024

CORRESP

Form CORRESP - Correspondence

May 8, 2024

LETTER

Form UPLOAD - SEC-generated letter

May 8, 2024

LETTER

Form UPLOAD - SEC-generated letter

Oct 17, 2023

CORRESP

Form CORRESP - Correspondence

Oct 4, 2023

LETTER

Form UPLOAD - SEC-generated letter

Sep 25, 2023

Aspen Aerogels, Inc. ASPN · SEC Filings